GE

Industrial Solutions

3.3kV-27kV
Embedded Pole
Vacuum Circuit Breaker
      
3.3kV-27kV
Embedded Pole
Vacuum Circuit Breaker
      
GE
GE is a diversified organization covering a myriad of market segments, including infrastructure,
finance and media. From energy, water, transportation and health to access to money and
information, GE serves customers in more than 100 countries and employs more than 300,000
people worldwide.
The company traces its beginnings from Thomas A. Edison, who established the Edison Electric Light
Company in 1878. In 1892, a merger of Edison General Electric Company and Thomson-Houston
Electric Company created the General Electric Company. GE is the only company listed in the Dow
Jones Industrial Index today that was also included in the original index in 1896.

Industrial Solutions
GE Industrial Solutions, a division of GE Energy Management, is a global leading provider in
power distribution, offering a wide range of services and products which include medium and low
voltage power distribution equipment and components, motor & control systems and service
products that are safe, reliable and offer high performance.

Honour
2010 World's Most Innovative Companies
2011 World’s Most Admired Companies

2009 World’s Most Respected Companies

2011 Best Global Brand

2008 World’s Most Respected Companies 2007 World’s Best R&D Companies
 More Than 90 Years

90 of Interrupter
Experience
GE pioneered experimental vacuum
interrupters in the 1920s. Refined it and
        
circuit breaker in the 1960s, To date, this
interrupter design has been the world
leader in vacuum technology and has
         
service.

Universal

A Applications
SecoVac is designed, assembled and tested
to meet or exceed applicable IEC, GB and
DL standards. It is suitable for applications
in all major industries including T&D, Oil
& Gas, Automotive, Processing plants,
World Class Quality Iron and Steel mills, Mining, Commercial
buildings, etc.
Manufactured, assembled and tested It provides protection for all types of
all in the same sophisticated facility, applications: coble, overhead lines, motors,
SecoVac is the product of state of the art capacitors, transformers, busbar sections,
manufacturing processes assured by ISO etc.
9001:2008 and ISO 14001 certification.
Precision tooled parts, computer aided
design and advanced production
techniques, as well as the protection of
the 'E Coat' (cathodic electrocoating) paint
process have resulted in a standard of
excellence unmatched in the industry.

Environment
Conscious
eco Selecting low environmental impact
technologies has become increasingly
important to engineers tasked with
choosing equipment for an application.
With commitment to environment
protection, the solid insulation of epoxy
resin is used for SecoVac series MV
embedded pole vacuum circuit breaker
instead of SF6 gas.
Contents
General Introduction
GE
GE Industrial Solutions
Description
Brief Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02
Vacuum Interrupter (VI) . . . . . . . . . . . . . . . . . . . . . . . 04
Application Condition . . . . . . . . . . . . . . . . . . . . . . . . . 0
Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 06
Advanced Technology . . . . . . . . . . . . . . . . . . . . . . . . 08
Standards and Quality Control . . . . . . . . . . . . . . . . 08
Environmental Protection . . . . . . . . . . . . . . . . . . . . . 10
Selection Guide
Introduction and Type Description . . . . . . . . . . . . 12
Product Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Primary disconnect . . . . . . . . . . . . . . . . . . . . . . . . 12
Breaker mechanism . . . . . . . . . . . . . . . . . . . . . . . 12
Interlock system . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Typical layout for vacuum circuit breaker . . . 13
Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Circuit Breaker Characteristics . . . . . . . . . . . . . 14
Main circuit resistance of SecoVac. . . . . . . . . . 14
Coil Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 14
Motor Characteristics . . . . . . . . . . . . . . . . . . . . . . 14
Overall dimension . . . . . . . . . . . . . . . . . . . . . . . . . 1
SecoVac VB2 Plus L-frame . . . . . . . . . . . . . . . . . 20
Measurement, Protection and Control
Multilin 60 Family . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Multilin 3 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Operation
Internal Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . 30
Working Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Vacuum interrupter . . . . . . . . . . . . . . . . . . . . . . . . 33
Working principle of operating mechanism . . . . 33
Motor spring charging . . . . . . . . . . . . . . . . . . . . . 33
Closing operation . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Anti-Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Tripping operation . . . . . . . . . . . . . . . . . . . . . . . . . 34
Reclosing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Preparation Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Ordering Check List
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

3.3kV-27kV Embedded Pole

Vacuum Circuit Breaker
Introduction
SecoVac series 3.3kV-27kV vacuum circuit breaker designed by
Description

GE is a three-phase AC indoor breaker with 3.3kV-27kV rated

voltage and can be applied in controlling and protecting electrical
equipment in industrial and mineral enterprises, power plants and
substations.
The product conforms to the IEC 62271 standard. It is especially
suitable for conditions which require frequent operation. The
              
withdrawable type. It is the optimum choice for the control and
protection of MV power distribution systems.

02
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Reliability, safety and performance in a compact package

SecoVac 3.3kV-27kV Vacuum Circuit Breakers Provide:

Description
Leading vacuum and Built to highest quality standards Reliability and safety
insulation technology

GE has developed environmentally SecoVac circuit breakers are designed SecoVac circuit breakers have a number
friendly vacuum circuit breakers which and fully third-party KEMA type tested to of inbuilt safety capabilities which can be
are capable of reliably switching high the latest IEC 62271-100 and IEC 62271- incorporated into the switchgear design.
stress fault currents. Increased dielectric 1 standards. All SecoVac circuit breakers Due to its innovative operating
strength of the SecoVac circuit breaker meet or exceed the electrical and mechanism the SecoVac breaker has
is achieved through encapsulation of mechanical endurance requirements of industry leading reliability that is rated at
the vacuum interrupter in epoxy resin E2 and M2 in accordance with IEC 62271- 10,000 operations.
material. SecoVac circuit breaker family 100.
utilizes this solid insulation technology
that has been catering to a wide scope of
applications for years.

Adaptability and versatility

SecoVac circuit breakers can be used in a
Storage conditions wide scope of applications such as the

In order to retain all of the functional protection of transformers, capacitor

units qualities when stored for prolonged banks, motors. The breaker can be used

periods, we recommend that the in a wide range of environments to suit all

Environmentally-friendly design regions of the globe.
equipment is stored in its original
GE’s vacuum and solid insulation packaging in dry conditions sheltered
technology is free of SF6 gas that from the sun and rain at a temperature
             #°C and 40°C. For storage:
!       " -30°C.

03
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Vacuum Interrupter (VI)

Maintenance free

GE vacuum interrupters are hermetically

  !    
integrity. Dedicated to proven reliability,
safety and performance, GE vacuum
      !  
quality products which are sealed for life.
Description

Structural durability

At the heart of the 3.3kV-27kV IEC circuit SecoVac circuit breaker is an embedded
breaker portfolio is GE’s proven vacuum pole type, which is extremely durable.
interruption technology and ninety years of
It can protect the vacuum interrupter
     
      $ 
such as humidity, moisture and dust.
The vacuum interrupter is where current making and The interrupter is immune to shock and
breaking occurs. Copper chromium contacts provide vibration.
superior performance characteristics. The vacuum in the
arc chamber protects the copper chromium contacts from
 !         " High performance

SecoVac circuit breakers provide you with:

ő High dielectric strength

ő High creepage distance

ő High mechanical strength

ő Low moisture absorption

ő Optimum thermal conductivity

Compact size

Combined with GE's embedded pole

technology, SecoVac circuit breaker has a
  " % !   
and interruption ratings in a small, cost
!  "

04
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Application Condition

High performance Special application condition

ő The ambient air temperature does not %        !
exceed 40°C and its average value, from the normal application conditions,
measured over a period of 24 hours, circuit breaker and associated devices
   <+/" =    and auxiliary equipment shall be designed
     >+/ and manufactured to comply with any

Environment
(storage and transportation is allowed special application conditions. For special
at -30°C) application conditions please consult with
ő For applications above 1,000m please GE in advance, normally the following

Description
refer to chapter 4.2.2 of IEC 60071-2 special service conditions maybe
(see following table for reference) encountered:
ő The conditions of humidity are as ő The installation location is more than
follows: 1,000m above sea level
- The average value of the relative ő The ambient temperature is between
humidity, measured over a period of #+/  5*+/;     
?5  ;    @J please contact GE sales for further
- The average value of water vapor detail
pressure, measured over a period of ő The circuit breaker current and
24 hours, does not exceed 2.2kPa dielectric ratings must be lowered for
- The average value of the relative high altitude and elevated temperature
humidity, measured over a period of applications
  ;    @*J
- The average value of water vapor
pressure, measured over a period of
one month, does not exceed 1.8kPa
ő Seismic intensity to UBC zone 4 or GB
intensity 9
ő No adverse operating environment
such as dust, humidity, vermin, polluted
ambient and high altitude operating site

Altitude Derating MV
m K (m=1) V K (m=0.9) In
1,000 1 1 1 1
;** 1.062 0.94 1.06 0.9
2,000 1.132 0.88 0.12 0.89
?;** 1.2 0.83 1.18 0.8
3,000 1.28 0.78 1.246 0.80
<;** 1.36 0.74 1.32 0.76
4,000 1.44 0.69 1.39 0.72
IEC 60071-2, 4.2.2 the altitude correction factor can be calculated using the following equation,
which modied to re$ect that no correction is required up to 1000m.

Where K m(H-1000)/Y*

H Is the altitude, in metres

m Is taken as a xed value in each case for simplication as follows
m = 1 for power frequency, lightning impulse and phase-to-phase switching impulse voltages
m = 0.9 for longitudinal switching impulse voltages

*
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Applications

Utilities and power plants

Power generation stations
Transformer stations
Switching stations
Main and auxiliary switchgear
Description

Industry
Oil and Gas
Mining
Marine
Pulp and Paper
Cement
Textiles
Chemicals
Automotive
Petrochemical
Data Center
Metallurgy

Transport
Airports
Ports
Railways
Underground transport

Services
Supermarkets
Shopping malls
Hospitals
Large infrastructures and civil works

06
SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Applications Description

07
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Advanced Technology Standard and Quality Control

High adaptability

ő Compare to traditional design,

enhanced reliability
ő Less resistance

ő Less mechanical parts

ő      !

climates
Description

Quality Type test

SecoVac circuit breakers provide you with: ő Dielectric test

ő IEC standard, 3rd party KEMA ő Temperature rise test

   ő Short circuit withstand current test

ő Advanced manufactoring process ő Mechanical operation test

ensured quality ő ES-Mechanical operation test

ő Advanced testing equipment ő Capacitive current switching test

Mechanical structure ő Integrated routine test

ő Single modular design

ő Integrate closing/opening module

ő Compact size, less than 86 parts

ő Enhanced reliability

ő Low maintenance

Standard

3.3kV-27kV Embedded Pole Vacuum ő Alternating current disconnector and

Breaker complies with the standards and earth switches

        ő IEC 62271-1:2007 the common

in accordance with the following IEC      

publications: switchgear and control gear standards
ő IEC 62271-100:2008 high-voltage ő %[/ \*?@]?**     

alternating current circuit breaks as provided by enclosures (IP code)

ő IEC 62271-200:2003 AC metal enclosed

switchgear and control gear for rated

       ?

08
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

The state-of-the-art processing and advanced quality control

The high quality of the embedded pole is achieved by using the latest APG (Auto Pressure

Quality Control
Gelation) technology and advanced vacuum mixing and degassing technology. The
Vogel clamping machine is an essential piece of equipment to ensure the mechanical
and insulating strength of the embedded pole of 3.3kV-27kV series MV embedded pole
vacuum circuit breaker.
As well as the processing facilities, the testing facilities are also very important to the
quality control of the breaker. In the manufacturing process of SecoVac, from incoming
  ^            ;         
and tested.
Every embedded pole goes through the following inspection and testing before it is

Description
allowed into the breaker assembly line:
ő X-ray inspection

ő Power frequency withstand voltage test

ő Partial discharge measurement

ő Thermal cycling test

Before delivery, the following tests and inspections will be done for 3.3kV-27kV
embedded pole vacuum circuit breakers in factory by means of advanced testing
equipment:
ő Dynamic characteristics measurement (Closing/opening speed, contact bounce, wipe

etc.)
ő Power frequency withstand voltage testing

ő Inspection of interlocking system between breaker and withdrawable unit

ő Secondary wiring inspection

ő Circuit resistance measurement

09
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Environmental Protection
Selecting low environmental impact technologies has become
increasingly important when choosing equipment for an
application. With commitment to environment protection, the
solid insulation of epoxy resin is used for 3.3kV-27kV series MV
embedded pole vacuum circuit breaker instead of SF6 gas.

Manufactured, assembled and tested all in the same sophisticated

facility, SecoVac is the product of state-of-the-art manufacturing
    %`{ @**]?***  %`{ 5**   "
Using precision tools, computer-aided design and advanced
Description

production techniques.

10
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Selection Guide
Introduction and Type Description . . . . . . . . . . . . 12
Product Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Primary disconnect . . . . . . . . . . . . . . . . . . . . . . . . 12
Breaker mechanism . . . . . . . . . . . . . . . . . . . . . . . 12
Interlock system . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Typical layout for vacuum circuit breaker . . . 13
Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Circuit Breaker Characteristics . . . . . . . . . . . . . 14
Main circuit resistance of SecoVac. . . . . . . . . . 14

Selection Guide
Coil Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 14
Motor Characteristics . . . . . . . . . . . . . . . . . . . . . . 14
Overall dimension . . . . . . . . . . . . . . . . . . . . . . . . . 1
SecoVac VB2 Plus L-frame . . . . . . . . . . . . . . . . . 20

11
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Selection Guide

Introduction and Type Description

Up to 17.5kV

SecoVac -ŕ /T ŕ- ŕ ŕ

SecoVac Series Rated voltage: Spring Rated current (A): 630, Rated short-circuit W: Withdrawable;
VB2 Plus vacuum 3.3kV, 7.2kV, operating 1250, 1600, 2000, breaking current (kA): F: Fixed
circuit breaker 12kV, 15kV, mechanism 2500, 3150, 4000* 25, 31.5, 40
17.5kV (*force cooling)
24kV, 27kV

SecoVac -ŕ /T ŕ- ŕ ŕ

SecoVac Series Rated voltage: Spring Rated current (A): 630, Rated short-circuit W: Withdrawable;
VB2 Plus vacuum 24kV, 27kV operating 1250, 1600 breaking current (kA): F: Fixed
circuit breaker mechanism 2000, 2500 25, 31.5

Product Structure

SecoVac 3.3kV-27kV Breaker Features

Selection Guide

Front panel Primary disconnect Breaker mechanism

           The primary disconnect cycloid (tulip) All the mechanical parts of the mechanism
equipment when the breaker is in the contact set is rugged and easy-to-inspect. are integrated into individual opening
service position. It provides a metal barrier Designed for optimum contact area, and closing modules. The modules are
between the breaker compartment and it is manufactured from silver-plated universal to SecoVac embedded pole
the secondary device compartment. copper and tested for continuous and vacuum circuit breaker series, regardless
Clearly marked and easy-to-read short-circuit current ratings. The tulip of rating. The module design assures no
operating controls and indicators include cluster design expands easily, providing mechanical adjustment is required after
trip button, close button, open/close        $   " =  !     
indicator, charge/discharge indicator, contact designs, and delivering proper lead-times and reduces operational and
operations counter and provision for contact integrity throughout the life of the maintenance costs.
manually charging the breaker. equipment.

12
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Interlock system Undercart

For personnel safety, SecoVac 3.3kV-27kV `€ !    
is designed with a number of mechanical undercart system which can be operated
and electrical interlocks. For example, for racking in and out. The undercart has
breaker contacts must be open before an interlock with earthing switch, which
the breaker can be moved from test to prevents misoperation. And it also allows
service position. A positive mechanical earthing function of circuit breaker by
stop is provided when the breaker means of metallic structure.
reaches the service or test/disconnect
positions. Mechanical rejection interlocks
are provided to permit only the insertion
       
compartments.
These and other necessary interlocks
provide a comprehensive safety system.
Furthermore, springs automatically
discharge when the breaker is withdrawn
from the service position and breakers
cannot be inserted in the closed position. Typical layout for vacuum circuit breaker

1 Tripping button
1

Selection Guide
2 Status indicator for charging 3
2
4
3 Closing button


4 Counter 6

 Indicator for open or close

6 Charging handle
Figure 1. Front facial of the circuit breaker

2
1 Upper contact arm

3
2 Embedded poles

4
3 Lower contact arm

4 Tulip cluster

Figure 2. Primary circuit

13
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Spare parts
The following spare parts are available to be ordered. If required please contact GE.

Description Remarks Description Remarks

Auxiliary switch F10-18 1 part per set Energy charge motor 1 part per set
    €‚# 2 parts per set Counter 1 piece per set
Trip coil 1 part per set Oil bu!er 1 piece per set
Close coil 1 part per set Control wiring board 1 piece per set
UVR 1 part per set Electromagnet for locking 1 piece per set
Microswitch 3 parts per set Electromagnet for locking truck 1 piece per set
Opening/closing module 1 piece per set

Circuit Breaker Characteristics

Rated Voltage kV 3.3 7.2 12 1 17. 24 27
Rated power frequency withstand (1min) kV 10 20 28 36 38 0 6
Rated lightning frequency impulse withstand voltage
kVp 20 60 7 9 9 12 12
ƒ"?„* †
Rated Frequency Hz 0/60 0/60
Rated Current A 630/120/1600/2000/200/310/4000* 630/120/1600/2000/200
Rated short-circuit breaking current kA 2/31./40 2/31.
Percentage of DC component ā Up to 0J 2J
Rated short-circuit closing current kAp 6/82/104 82
Rated short time withstand current kA 2/31./40 31.
Rated peak value withstand current kAp 6/82/104 82
Rated duration time for short-circuit s 3 3
Opening Time ms 20~0 20~0
Closing Time ms 30~70 30~70
Rated auxiliary control voltage** V 24/30/36/48/60-72/110-130/220-240V DC 110-130/220-240V AC
Operation sequence ā O-0.3s-CO-180s-CO/ O-0.3s-CO-1s-CO O-0.3s-CO-1s-CO
Mechanical life operations Quantity 10,000 (M 2) 10,000 (M 2)
Electrical Endurance class ā E2 E2 (list 1)
Selection Guide

Single capacitor bank Switching current A 400 400

Rating for Earthing Switch short time withstand current 40kA 1s 31.kA 1s
* Force cooling
**Please consult with GE for further information

Main circuit resistance of SecoVac

Item Unit Value
Rated Current A 120~1600 2000~4000
Resistance ˆ ļ 4 ļ 2

Coil Characteristics
Rated voltage (V) Rated voltage (V) Rated voltage (V)
DC 24 DC 48 DC 220-240
DC 30 DC 60-72 AC 110-130
DC 36 DC 110-130 AC 220-240
*Power consumption 30VA

Motor Characteristics
Rated voltage (V) Normal operation voltage range Energy storing period under rated operation voltage (s) Input Power (W)
DC 24 8J-110J <1s 10
DC 30 8J-110J <1s 10
DC 48 8J-110J <1s 10
DC 60 8J-110J <1s 10
DC 110 8J-110J <1s 10
DC 12 8J-110J <1s 10
DC 220 8J-110J <1s 10
DC 230-240 8J-110J <1s 10
AC 110 8J-110J <1s 10
AC 12 8J-110J <1s 10
AC 220 8J-110J <1s 10
AC 230-240 8J-110J <1s 10
14
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Overall dimension

` <"<#Š"„\<*‹?*#?‹<" ƒŒ      ] *†

Withdrawable type
488
201.5 492±1
456
150±1 150±1

ØD
275±1

637
280±1

e Vacuum circuit breaker

78
GE Consumer & Industrial Systems

95.5
76

( )

O-0.3s-CO-180s-CO

Shanghai GE Breakers Co.,Ltd.

436±1 32
599±1

502
516
531

Fixed type
∅62
Terminal section
150 150

M16 Depth 22mm

Selection Guide
275

451.5

e GE Engery
Industrial Solutions
Vacuum circuit breaker
237

( )
4-M12
2V&2V&2
2V&2V&2

Shanghai GE Breakers Co.,Ltd.

370

450 45 275 118

443


 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Overall dimension

` <"<#Š"„=?*„?***#5* ƒŒ      ] ?*†

Withdrawable type

638
276.5

210±1 210±1

310±1

698
295±1

86

95.5
76

361±1 39
652 586±1
664
681

Fixed type

210 210 110

2XM10-Depth 15mm
100
45°
70
78

M18 Depth 25mm

Selection Guide

310

451.5
252

520 33.5
588 275 118

16
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

` <"<#Š"„=?**‹5***#5* ƒŒ      ] ?Š†

Withdrawable type

838
376.5 836±1
(794)
275±1 275±1

Ø109

310 ±1

735
e GE Consumer & Industrial Systems Vacuum circuit breaker

Type designation
295 ±1

Serial number
kV
Rated voltage(Ur)
A
Rated normal current(Ir)
Hz
Rated frequency
( ) kV
Rated lightning impulse withstand voltage(Up)
kA
Rated short-circuit breaking current(Isc)
kA
Rated short time withstand current (4s)
A
Rated cable-charging breaking current
V
motor voltage
V
Rated supply voltage of closing and opening devices

86
Relevant standarder
O-0.3s-CO-180s-CO
Warning!
Rated operating sequence
kg High voltage dangerous! Always observe
Weight
the instruction manual and follow the rules.
Manufacture date

Shanghai GE Breakers Co.,Ltd.

76

95.5
852 361±1 39
864 586±1
881

Fixed type
30

110 27
275 275 Terminal section
100

∅80
4-M10
(20mm in depth)
310

Selection Guide
451.5

e GE Engery
Industrial Solutions
Vacuum circuit breaker

4-M12
( )
252

2V&2V&2
2V&2V&2

Shanghai GE Breakers Co.,Ltd.

720
34.5 275 118
788

17
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Overall dimension

` ?5#?Š„=\<*‹?*#<" ƒŒ      ] ?*†

Withdrawable type
638

10
642
210 210

310

762
345

112.5

652 320

680 651

Fixed type

210 210

Terminal section 45,0°

M18
depth 25mm 70
310
Selection Guide

665

302

52,0
520 4-M12 275 118

588

18
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

` ?5#?Š„?*‹?**#<" ƒŒ      ] ?Š†

Withdrawable type

838

ø109
275±1,5 275±1,5

310±1

762
345±1

e 112,5
64

74
320
651±1
852
881

Fixed type

30
Terminal section
27

275 275 ø82 4-M10

145
100 depth 20mm

15

30
45

Selection Guide
310

5
730
452
305

4-M12

720
25 275 118

788

19
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

SecoVac VB2 Plus L-frame

` <"<#Š"

A
B
690

ØE
A View M
R-∅
7

270
J

G
C±1

L
260

D±1
453
∅1

110
2
255

255
380

9
16-∅
H
65

F
50 200 200 216 F+9

I A View
1250A 25X84 1250A spout
3150A 42X126
59

M8 20mm depth
M10 23mm depth

31.5
P±1
P±1

3150A Spout

∅60
M10 25mm depth
Selection Guide

59

M12 35mm depth

725

A B C D E F G H I J L M N R P
\* ?* 914 794 27 43 49 632 1031 310 934 78 6 7 10 2 10
124/120A
Y** ?*„?*** 91 781 310 468 90 782 1039 460 977 NA NA NA NA 210
114/2000A
*** <* 91 779 310 468 49/90 982 1039 660 969 101 84 0 137.  27

20
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

SecoVac 24kV-27kV

C±1

G
12

D±1
K
L

245.5
M

J E E 120 197.5 197.5

H
F

I
25
896

73
m
0m
0X3
M1 2500A Spout
60
P± 1

91
P± 1

mm
45
6X
M1

Selection Guide
A B C D E F G H I J K L M N P
Y** ?* 1142 896 310 617. 17. 792 1121. 460 1142 26 18 14 40 170 210
*** ?** 1142 896 310 617. 10 992 1121. 660 1264 41 10 10 69. 223 27

21
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Measurement, Protection
Measurement, Protection and Control

and Control
Multilin 60 Family . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Multilin 3 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

22
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Measurement, Protection and Control

         ] ]„„" "„  „ „\*" 

Multilin 650 Family

Advanced protection,
control and monitoring system

   
ő Unique built-in control features - Comprehensive protection ő / [!      #      ;

plus programmable logic     ‘`?<? ’ ‘`5Y [  Œ 

ő    !        # ő {     $        #

Use IEC compatible programmable logic to customize the “  ‘=”; ‚•Œ <"*  ?; %[/ \*YŠ*##*5; %[/ \Y*; %[/

Measurement, Protection and Control

functionality of your protection & control system to address YŠ*##*<
^ ;      ő Minimize communication down time - Reliable redundant

ő Human machine interface (HMI) - Standard backlit LCD display Ethernet Communication ports with 10/100BaseTX, 100BaseFX
with 4 x 20, optional 16 x 40 (240 x 128 pixels) graphical LCD, with ST connectors and optional double 100BaseFX, with ST
programmable buttons and directional keys for selecting connectors
setting menus and submenus ő Complete asset monitoring - Full metering including demand

ő Minimize replacement time - Modular with card draw-out & energy

construction ő      #      

ő Reduce troubleshooting time and maintenance costs - IRIG-B upgrade

time synchronization, event reports, waveform capture, data
logger

Applications
ő \*] “          ő €\*] ‚      

feeders and bus couplers ő €\*] ‘ ‚   €    

ő \*] –       ;     protection system
lines ő —\*] —    ;     
ő €\*] Œ         ő —\*] ‚         

23
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Features
Protection and control User interface
ő Up to 32 Programmable digital inputs ő Large graphic (16 x 40) or regular (4 x 20) character display

ő Up to 16 digital outputs ő Easy-to-use control via Shuttle key

ő Trip Circuit Supervision ő Front USB port or standard RS232

ő Redundant power supply option ő Rear wire 10/100BaseTX Ethernet for LAN connection

ő /  Œ/    %[/ \<#< ő ‘  /•    ƒ{Œ[• /•   # —\*†

ő        ˜“%    ő {     **–™ [  ;    

ő Alarms panel ő {   ‘`5Y 

ő   [‚    [‚  

Monitoring and metering ő EnerVistaTM Integrator providing easy integration of data in the
ő Energy metering ő Data logger
\*              
ő Demand metering ő Sequence of event

ő Trip circuit monitoring ő Self diagnostic

ő Oscillography

Overview Metering
=  “   \*     screens. =  “   \*   
as a comprehensive protection, control, =       *"J metering values.
metering and monitoring package. The       J  *  ő Current: Ia, Ib, Ic, In, Ig, Isg

microprocessor based architecture 208V for voltage in metering range. ő Phase-to-phase and phase-to-ground

       ! Monitoring functions include a 479 voltage values for bus and line: Van,
applications that complies with the most event recorder, and a programmable Vbn, Vcn, Vab, Vbc, Vca, Vx
relevant international standards. oscillography recorder. ő Active power (per phase and total) : Wa,

All the elements required for each =  “   \*š    Wb, Wc, W
Measurement, Protection and Control

application have been integrated into a capability and option make the product ő Reactive power (per phase and total) :

     #! ;  very unique. These units include VARa, VARb, VARc, VAR
and simple utilization. The low number of a maximum of three independent ő Power factor (per phase and total)

components, thanks to the use of state- communication ports: COM1, COM2 ő Frequency

of-the-art but mature technology, deliver and COM3, with many physical choices ő These signals are available for local

a very high reliability. through the use of two removable plug- display and accessible remotely using
Hardware inputs and outputs have been and-play boards. communications
designed in a modular way that allow =     “   \*    
easy migration from simple to more a powerful built-in virtual PLC. This PLC Recording functions
complex applications. can be programmed according to the IEC The recording functions within the Multilin
The control functions include a full- 61131-3 language by functional block \*  ]
scheme virtual PLC with an optional diagrams. ő Event recorder capable of storing 479

graphical display. The combination of \*     Y  <?     time-tagged events (1 true millisecond
both elements provide total control for and with 8 to 16 outputs depending on accurate tagging)
a bay. This means real-time monitoring  "          ő Up to 20 separate oscillography records

of breakers and selector switches, open with a separate debounce time to tailor can be stored in memory. The capacity
and close commands supervised by the customer requirements. of each record will depend on the type of
programmable interlockings and metering oscillo selected (1 Mbyte/Max. No. Osc)

24
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

These records are stored in non volatile Communications

memory. Therefore, there is no need “   \*       =/Œ„%Œ  %[/ \*YŠ*##*5"
for internal battery monitoring or three ports that operate independently.
maintenance. Redundant ports are available for high
reliability applications:
Trip circuit monitoring Available protocols for rear port 1 and 2
“   \*   !      are ModBus RTU, IEC 103 and serial DNP
complete supervision circuits for breaker 3.0.
trip and closing coils and circuits. These The third port is located in a removable
supervision inputs monitor both the communications card. This plug-and-
battery voltage level and the continuity of play card can be easily changed in the
the trip and/or closing circuits, applying future as new standards arrive to the
current through those circuits and market, thus providing a migration path
    $ " %  to the customer.
to apply this feature it is necessary to The protocol available for the third port
choose I/O board 1 option 2. is DNP 3.0 over TCP/IP, UDP/IP, ModBus

User Interface

ő Graphic 16 x 40 or text 4 x 20 LCD display

ő Fluorescent backlight to improve visibility

ő Multicolor programmable LEDs with label panel

ő „‘ „{!      [‚

Measurement, Protection and Control

ő Key control for easy navigation

ő Ergonomic programmable keys

ő Electrically isolated front USB communication port

ANSI Device Numbers & Functions
Device
Number Function
25 Synchrocheck
27/27X Bus/Line Undervoltage

Functional Block Diagram 32

32FP
Sensitive Directional Power
Forward Power
32N Wattmetric zero-sequence directional
46 Negative Sequence Time Overcurrent
47 Negative Sequence Voltage
48 Blocked Rotor
49 Thermal Image - overload protection
1
52 50 BF Breaker Failure
50PH/PL Phase Instantaneous Overcurrent (High/Low)
50N Neutral Instantaneous Overcurrent
79
1 CLOSE TRIP 27X 50G Ground Instantaneous Overcurrent
3
Monitoring 50SG Sensitive Ground Instantaneous Overcurrent
3 59X 50IG Isolated Ground Instantaneous Overcurrent
BROKEN 3
50BF 49 50PH 50PL 46 48 32FP 32 32N CONDUCTOR 51PH/V 51PL/V 67P
R R 50N 51N 67N 51N Neutral Time Overcurrent
1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
25 51G Ground Time Overcurrent
1
51SG Sensitive Ground Time Overcurrent
1 2 2 51PH/V Voltage Restraint Phase Time Overcurrent
50G 51G 67G 51PL/V
3 3 3
1 59/59X Bus/Line Overvoltage
50SG 51SG 50IG 67SG METERING 59NH/NL Neutral Overvoltage - High/Low
3 3 3 3
3V_0 67P Phase Directional Overcurrent
3 67N Neutral Directional Overcurrent
67G Ground Directional Overcurrent
67SG Sensitive Ground Directional Overcurrent
47 27 59 VTFF 81U 81O 81R 79 Autorecloser
3 3 3 1 3 3 3
59NH 81 U/O Under/Over Frequency Broken Conductor
3
Detection
59NL N/A Load Encroachment
F650 Digital Bay Controller 3
81R Frequency Rate of Change
EN F650 BLOCK F.CDR
VTFF VT Fuse Failure Detection

?
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Measurement, Protection and Control

For more information visit our website: http://www.gedigitalenergy.com/multilin/catalog/3Series.htm

Multilin 3 Series
Intuitive industrial and utility
protective relay systems
for feeders, motors and
transformers

   
ő [# #    !         ő   $       
feeders, motors and transformers elements
ő [!  #       ^    ő Large backlit display with 40 characters for easy viewing of

test switches and reduces downtime relay information and settings

Measurement, Protection and Control

ő Environmental monitoring system to alarm on destructive ő Flexible communications with multiple ports & protocols to

operating conditions to enable preventative maintenance allow seamless integration into new and existing infrastructure
ő Easy-to-use interface and set up in one simple step ő Easy access to information via multiple communication

ő Accelerated Life Cycle Tested to ensure reliability of relay network options including USB, Serial, Fiber & Copper Ethernet
operation under abnormal conditions ő Reduced wiring with support for remote I/O

ő Advanced power system diagnostics to increase reliability ő ‘           ` “ 
through fault and disturbance recording capabilities Setup screen
ő       ›  # ; $    ő Powerful Security Audit Trail tool to increase security and

multiple setting groups minimize system risks by tracking setting changes

Applications
ő Advanced protection, monitoring & control relays for feeders ő Distribution utility down stream breaker protection

ƒ“   <*†;   ƒ“   <<@†    ƒ“   ő Medium voltage utility feeders with advanced control features

<5† including, cold load pickup, auto reclose and multiple setting
ő Industrial feeders with enhanced breaker monitoring and groups
diagnostics

26
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Features Easy-to-use
Protection & control Drawout construction
ƒ  “   <*  Œ   ` † =  “   < ` !   
ő Phase, neutral and ground TOC and IOC drawout feature eliminating the need for
ő Undervoltage, overvoltage, frequency rewiring after testing has been concluded.
ő Neutral/ground directional The withdrawable feature also eradicates
ő Negative sequence overcurrent the need to disconnect communication
ő •`%; %/; %[/; $   ; "" ; ; ‘5;   
Overview
ő Cable Thermal Model protection helps retain communication status even
ő Breaker failure The Multilin 3 Series of protection relays after a relay has been withdrawn from its
ő Cold load pick-up are highly functional, economical case.
ő Four-shot auto reclose protection relays for feeders, motors and

ő 8 digital inputs, 7 contact outputs transformers. By providing an economical

ő Two setting groups system for protection, control, monitoring

and metering, and both local and
Metering & monitoring remote user interfaces in one assembly,
ő [ ‘] ?\      “   < `  ! 
time stamping eliminate the need for expensive discrete
ő Oscillography with 32 samples per
components.
cycle and digital states The Multilin 3 Series provides detailed
ő IRIG-B clock synchronization
diagnostic information allowing users to
ő Relay & Asset Health Diagnostics
troubleshoot and minimize downtime.
ő Security audit trail
Detailed diagnostics is provided via the
Advanced communications
?\      
User interface and programming
and the 192 cycle Oscillography report Easy integration into new or existing
ő 4x20 character LCD display
infrastructure

Measurement, Protection and Control

sampled at 32 samples per cycle.
ő Control panel with 12 LED indicators
The robust Multilin 3 Series streamlines With several Ethernet and serial port
ő Front USB and rear serial, Ethernet and
  $    options, and a variety of communication
Fiber ports
       ; protocols, the Multilin 3 Series provides
ő “     # %[/ \Y* ’ \Y*
wiring, testing, commissioning, and   $   
GOOSE, ModBus™ RTU, ModBus™
 " =   #!   selections enabling seamless integration
=/Œ„%Œ; ‚•Œ <"*; %[/ \*YŠ*##*5; %[/
 !        into new or existing applications.
\*YŠ*##*<
diagnostics, preventative maintenance, The Multilin 3 Series supports various

EnerVista™ software device health reports and advance industry standard protocols such as, IEC

ő An industry-leading suite of software security features. \Y* ’ %[/ \Y* €{{`[; “  ‘=”;

      “  =/Œ„%Œ; ‚•Œ<"*; %[/ \*YŠ*##*5

working with Multilin devices  %[/ \*YŠ*##*<"

ő Document and software archiving

toolset to ensure reference material

and device utilities are up-to-date

27
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Enhanced diagnostics EnerVistaTM Launchpad Security

Preventative maintenance EnerVista™ Launchpad is a complete set of Security audit trail
The Multilin 3 Series allows users to track           The Multilin 3 Series monitors security
relay exposure to extreme environmental that is included at no extra charge with the SR and reliability of asset protection. The
conditions by monitoring and alarming Relays. Multilin 3 Series protection devices
at high temperatures. This data allows ő Set up the Multilin 3 Series Relays - and any !      
user to proactively schedule regular other Multilin device - in minutes. Retrieve relay setting and command changes,
maintenance work and upgrade activities. and view oscillography and event data at allowing the user to quickly identify
TM
All relays utilize EnerVista setup the click of a button changes made to the relay.
software for communication, monitoring ő Build an instant archive on any of the

and metering. Actual values, setpoints, latest Multilin manuals, service advisories,
status, trending, and waveform capture    ;   
information may all be viewed via     `‘ ‘
the software, and can be used for ő Automatic document and software version

troubleshooting. updates via the internet and detailed e-mail

     

User Interface
ő SETPOINT GROUP 1, 2:
These indicators are continuously on if corresponding group provides settings for protection elements.
TRIP:
Indicator turns on when relay detects a trip condition.
Operates the trip relay to open the breaker.
ALARM:
—         ;   $ "
PICKUP:
Indicator lights steady when any protection feature pickup threshold exceeded.

ő DISPLAY:
4 line text for easy viewing of key data.
Measurement, Protection and Control

ő LEDs:
10 LED indicators for quick diagnostics.

ő KEYPAD:
Ten button keypad for access to device interrogation and change of settings.

ő FRONT PORT:
Electrically isolated front USB communication port.

Protection Features ANSI Device Numbers & Functions

Device
BUS Number Function
27P Phase Undervoltage
27X Auxiliary Undervoltage
BUS VT
49 Thermal Model
52 50P Phase Instantaneous Overcurrent
50N Neutral Instantaneous Overcurrent
50G Ground/Sensitive Ground
79 27P 59P 27X 59X 59_2 59N 81U 81O Instantaneous Overcurrent
TRIP CLOSE 1 1 1 1 1 1 1 2 2 50BF Breaker Failure
MONITORING 50_2 Negative Sequence Overcurrent
3 51P Phase Timed Overcurrent
51G Ground Timed Overcurrent
50P 50N 51P 51N 50_2 49 METERING
51N Neutral Timed Overcurrent
2 2 1 1 1 1 59P Phase Overvoltage
59X Auxiliary Overvoltage
CLP 50BF 79 59N Neutral Overvoltage
59_2 Negative Sequence Overvoltage
1 67G Ground Directional Overcurrent
50G 50G/
51G 67N Neutral Directional Overcurrent
51G TRANSIENT RECORDER
EVENT RECORDER 79 Autoreclose
2 1 81U Underfrequency
81O Overfrequency
350 RELAY CLP Cold Load Pickup

Latched Lockout available as a standard feature

LOAD

28
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Operation
Operation
Internal Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . 30
Working Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Vacuum interrupter . . . . . . . . . . . . . . . . . . . . . . . . 33
Working principle of operating mechanism . . . . 33
Motor spring charging . . . . . . . . . . . . . . . . . . . . . 33
Closing operation . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Anti-Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Tripping operation . . . . . . . . . . . . . . . . . . . . . . . . . 34
Reclosing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Preparation Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

29
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Internal Wiring Diagram

Withdrawable Type

Spring Charge Motor Closing Circuit Breaker Interlock Circuit Opening Circuit Truck Interlock Circuit

26 24 25 10 52 30 6 3 5 7 9 23 27 28 29 8 1

V2 V4 V3

CC
V1 K0
TC V5 A~
(13) C+ B-
(14) S2 Y4 1
D~
BC ZC
M S4 2

(51) (53) (73) (11) 91 31 41 71 61 63 23 33 83 93

(52) S5
(54) S5
S5 (12) S5 92 32 42 72 62 64 24 34 84 94 S5
(74)
(5) (2)
K0
(3)

43 43
44 S8 44 S9
(21) (13) (21)

(22) S3 (14) S3 (22) S1

36 34 35 20 53 54 31 32 16 13 15 17 19 33 37 38 39 18 40

11 2 4 47 57 55

13 33 23 53

14 S9 S9 S9 54 S9
34 24

13 33 23 53
14 34 24 54
S8 S8
Operation

S8 S8

21 43 13 81
22 S5 44 S5 14 S5 S5
82

21 22 51 50 12 14 48 49 58 56

S9: Limit switch (service position) CC: Closing coil KO: Anti-pumping relay (optional)
S8: Limit switch (test position) TC: Trip coil BC: Electromagnet for locking (optional)
S4: Electromagnet for locking's auxiliary switch M: Spring Charge Motor ZC: Electromagnet for locking truck (optional)
S: Auxiliary switch V1~V4: Rectier
S1~S3: Energy storing limit switch

Note:
1. This wiring diagram describes that a breaker is open, racked to test position with spring in discharge state.
2. The polarity in dashed frame should be connected to common DC voltage terminal.

30
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Withdrawable Type (with UVR)

Spring Charge Motor Closing Circuit Breaker Interlock Circuit Opening Circuit Truck Interlock Circuit

24 25 10 52 30 6 3 5 7 9 23 27 28 29 8 1
26

V2 V4 V3

CC
V1 K0
TC V5 A~
(13) C+ B-
(14) S2 Y4 1
D~
ZC
BC
M S4 2

(51) (53) (73) (11) 91 31 41 71 61 63 23 33 83 93

(52) S5
(54) S5
S5 (12) S5 92 32 42 72 62 64 24 34 84 94 S5
(74)
(5) (2)
K0
(3)

43 43
44 S8 44 S9
(21) (13) (21)

(22) S3 (14) S3 (22) S1

36 34 35 20 53 54 31 32 16 13 15 17 19 33 37 38 39 18 40

UVR circuit

43 11 2 4 47 57 55

13 33 23 53

14 S9 S9 S9 54 S9
34 24

MM UM

13 33 23 53
14 34 24 54
S8 S8 S8 S8

Operation
21 43 13 81
22 S5 44 S5 14 S5 S5
82

44 21 22 51 50 12 14 48 49 58 56

S9: Limit switchDŽservice positionDž CC: Closing coil UM: UVR

S8: Limit switchDŽtest positionDž TC: Opening coil V1~V: Rectier
S4: Electromagnet for locking's A.S. M: Motor K0: Anti-pumping relay(optional)
S1~S3: Energy storing travel switch MM: UVR PCB(optional) ZC: Electromagnet for locking truck(optional)
S: Auxiliary switch BC: Electromagnet for locking(optional)

Note:
1.This wiring diagram describes that a breaker is open, racked to test position with spring in discharge state
2.The polarity in dashed frame should be connected to common DC voltage terminal

31
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Internal Wiring Diagram

Fixed Type

Spring Charge Motor Closing Circuit Breaker Interlock Circuit Opening Circuit
24 25 10 52 30 6 3 5 7 9 23 27 28 29 8
26

V2 V4 V3

CC
V1 K0
TC
(13)
(14) S2

BC
M S4

(51) (53) (73) (11) 91 31 41 71 61 63 23 33 83 93

(52) S5
(54) S5
S5 (12) S5 92 32 42 72 62 64 24 34 84 94 S5
(74)
(5) (2)
K0
(3)

(21) (13) (21)

(22) S3 (14) S3 (22) S1

36 34 35 20 50 51 31 32 16 13 15 17 19 33 37 38 39 18

11 2 4
Operation

21 43 13 81
22 S5 44 S5 14 S5 S5
82

21 22 12 14

S4: Electromagnet for locking's auxiliary switch CC: Closing coil KO: Anti-pumping relay (optional)
S: Auxiliary switch TC: Trip coil BC: Over current release coil (optional)
S1~S3: Energy storing travel switch M: Energy storing motor ZC: Electromagnet for locking (optional)
V1~V4: Rectier C: Control

Note:
1. This wiring diagram describes that a breaker is uncharged and is in an open state.
2. The polarity in dashed frame should be consistent when the operation voltage is DC.

32
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Working Principle
Vacuum interrupter

The vacuum gas pressure inside vacuum interrupter is less than

1.33×10-3Pa. Under normal circuit conditions the interrupter is
closed. Arcing is established within the interrupter by withdrawing
the moving contact from stationary contact. This arc burns in
the metal vapor evaporated from local hot spots on the contact
surfaces. The metal vapor continually leaves the inter-contact
region and recondenses on the contact surfaces and surrounding
metal vapor condensation shield. The latter is usually isolated
from both contacts and serves to protect the glass or ceramic
envelope from vapor deposition. At current zero, vapor production
ceases and the original vacuum condition is rapidly approached.
The dielectric strength of the interrupter also increases, and the
circuit is interrupted. Within the contacts in the open position, the
circuit voltage is withstood internally by the inter-contact gap
and externally by the insulating envelope.

Working Principle of Operating

Operation
Mechanism
Motor spring charging

1
The energy that is necessary for closing the circuit breaker is
provided by the closing spring. The energy storage can be done
by the motor or by the manual charging handle.

Motor spring charging

The energy charging mechanism consists of energy storing
motor, gear wheel, cam, holder and closing spring. When the 6

energy-storing motor (11) is charged, the pinion of output shaft 2

5
(12) that is connected to motor will rotateand drive the gear
 " =             
4
on the shaft move, which then drive the shaft to rotate, so that
draws out the closing spring (17) for storing energy. When the 3

block on the gear wheel is pushed away, the clutch is separated Figure 3.
   ƒ5†        ƒ†    1 Embedded pole 4 Holder
mechanism in charged position, thus completing the charging 2 Insulating rod  Cam
3 Opening spring 6 Position switch
operation succeeds.

33
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

When energy is charged manually, the operator charges

the spring by operating the energy-charging handle on the
mechanism up and down repeatedly.
When the charging operation is completed, you can hear a 'click',
and the energy charging indicator (13) is switched over, as well as
the status of position switch (6), cutting the secondary charging
circuit supply to motor. The operating mechanism now is ready
for the next operation. (Figure 3)

Closing operation Anti-Pump

When the closing circuit is powered, the closing coil is energized  #        `    
and the holder (4) will rotate counter clockwise to break away sequences of opening and closing operations. Once the circuit
      Ġ" =  ;       breaker is in closed position, the closing operation will be
force from closing spring (17), will rotate clockwise, prohibited.
to push the roller on the main shaft, which will move the main
shaft (10) in counter clockwise rotation. The main shaft moves the
Reclosing
connecting rod down through arm, so that the insulating rod (2)
  ;            
When the circuit breaker is closed, the mechanism can be
at the required speed, and compressing the contact spring and
charged for close, so that the circuit breaker can reclose
making it a necessary contact travel (overtravel) to ensure the
immediately after tripping.
            "
        ;  „  
Operation

(9) will indicate 'closed'. The power to the closing circuit will be cut
!" %        ›;      7
              
automatically.
Note: Once the circuit breaker is in closed position, the closing operation
will be prohibited.
17 8
Tripping operation 16 9
10
When the breaker receives an opening command (the opening
15

push button is pressed or the tripping coil (16) is energized), the 11

14
tripping shaft will rotate clockwise. Under the action of opening
spring (3) and contact-compressing spring, main shaft will move 13
clockwise, and the insulating rod (2) will make the movable
12
               "
=   !           Figure 4.
is completed. 7 Closing coil 13 Charging indicator
8 Holder 14 Interlock coil
9 Open/close indicator 1 Over-current release
        ;  „
10 Main shaft 16 Tripping coil
indicator (9) will indicate 'open'. Meanwhile, the counter will record 11 Motor 17 Closing spring
the operation. 12 Output shaft

34
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Interlocks Installation
The follow interlocking facilities are Correct installation is of primary
incorporated to ensure the safe operation importance, the manufacturer’s
of the breaker. when the breaker is closed, instructions must be carefully studied
the withdrawable circuit breaker cannot and followed. It is good practice to use
be racked between the service position gloves for handling the breaker during the
and test position. installation.
ő When the earthing switch is in the

closed position, the withdrawable Please carry out installation and wiring      
circuit breaker cannot be racked into of breaker according to manual. Do not breakers
the service position place any foreign objects in the breaker or
ő When the withdrawable circuit breaker ő The careful and professional
modify it in anyway.
is in service position, the earthing installation is a fundamental condition

switch cannot be closed for the failure free operation of the

circuit breaker
Check before installation
ő The circuit breaker should be

After the breaker is unpacked, check installed so that there are no external
the poles for any signs of mechanical forces applied to it from busbars or
damage. The product nameplate and mechanical supports
^            ő The busbar connection should not

order. Check goods according with the cause any deformation to the breaker
packing list. terminals

Operation
ő Take note of supplied drawings for bolt

Clean the insulating parts with a clean sizing and lengths

dry cloth. Make sure the upper and lower ő Use the standard bolts with strength

contact arms are clean and free of any of class 8.8 and the disc springs to
deformation caused by mishandling tighten the bus bar (Table 1)
during transport or storage.
Check the vacuum pressure in the vacuum
interrupter through power frequency
withstand voltage test. If it fails, please
      €[ ¡"

Table 1 Tightening torque of bolt

Basic dimensions Tightening torque Tightening torgue
of bolts (mm) without lubricant applied (N¢m) with lubricant applied (N¢m)
M8 2 10
M10 4 2
M12 8 4
M16 170 80

<
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Commissioning Preparation Work

All commissioning and operation work ő Check the circuit breaker for any

shall be carried out by persons who have damage or any other dangerous
received professional training and are   $ 
familiar with operation of the breaker. ő Wipe down the breaker, especially dirt

Necessary protective and preventive that may have accumulated on the

measures shall be taken during work. surface of the insulator. Especially the
ő Use the product under normal working dirt on the surface of insulation
conditions and within the range ő The lifting hook of the circuit breaker

of technical data according to the must be removed prior to operation

   %[/ \??Š#]?**Š ő Check the primary and secondary

circuits as well as the earthing

ő Implement energy charged, opening

and closing operations. Manually

Considerations ensure the breaker is operating

correctly
Operation for withdrawable circuit breaker
ő Put the circuit breaker into test position

ő Connect the secondary wiring plug and

open and close the breaker several

times to ensure correct operation by
local and remote control
Operation

ő Insert the handle and rotate the racking

handle clockwise about 20 revolutions.

Upon the 'click', the withdrawable
circuit breaker will be in the service
position (Don't apply excessive force, to
avoid any damage)

36
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Check List

Check List
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

37
 SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker

Ordering Check List

IEC SecoVac 3.3-27kV (VB2 Plus) Checking List
COUNTRY: PROJECT NAME: PO NO.:

BASIC
Type Code: Qty:
Rated Voltage ŕ 3.3kV ŕ 7.2kV ŕ 12kV ŕ  ŕ Š" ŕ 24kV ŕ 27kV
Rated Current ŕ 630A ŕ ?* ŕ 1600A ŕ 2000A ŕ ?** ŕ <* ŕ 4000A
Rated Short-Circuit Breaking Current ŕ ? ŕ <" ŕ 40kA
Pole Center Distance (P) ŕ * ŕ 210mm ŕ ?Š
ŕ DC24V ŕ DC30V ŕ DC36V ŕ DC48V ŕ DC60~72V ŕ DC110-130V
Tripping/Closing Release(TC, CC) ŕ DC110V ŕ ‚/? ŕ DC220-240V
ŕ AC110V ŕ AC220V ŕ AC110-130V ŕ AC220-240V
ŕ DC24V ŕ DC30V ŕ DC36V ŕ DC48V ŕ DC60V ŕ DC230-240V
Charging Motor (M)
ŕ DC110V ŕ ‚/? ŕ AC110V ŕ /? ŕ AC220V ŕ AC230-240V
Secondary Wiring ŕ Standard ŕ Nonstandard (Refer to drawing with number: )
ŕ Earthing on both sides of SecoVac withdrawable unit
Withdrawable Type SecoVac Earthing
ŕ Other

ŕ Through terminal block above SecoVac frame

Secondary ŕ Through secondary plug with socket
Fixed Type SecoVac
Wiring ŕ Through secondary socket above SecoVac frame with plug
ŕ Other

OPTION 1:
Blocking magnet of closing circuit loop (BC) ŕ DC220V ŕ DC110V ŕ AC220V ŕ AC110V ŕ Other ŕ Not required
Anti-Pump Relay (K0) ŕ Required ŕ Not required

OPTION 2: (Extra expense is required.)

ŕ DC24V ŕ DC30V ŕ DC36V ŕ DC48V ŕ DC60~72V ŕ DC110-130V
Under Voltage Release (UVR) ŕ DC110V ŕ ‚/? ŕ DC220-240V
ŕ AC110V ŕ AC220V ŕ AC110~130V ŕ AC220~240V
Blocking Magnet of SecoVac withdrawable
ŕ DC220V ŕ DC110V ŕ AC220V ŕ AC110V ŕ Other
Unit (ZC)

Other Special Requirement

(Please list other special requirement if any, and attach drawings or attachment)
L-Frame ŕ Not required ŕ Required (Extra price needed)
ŕ With Earthing switch ŕ Without Earthing switch

OPTION 3: (Extra expense is required.)

Racking Handle Pcs ƒ         /–†
Charging Lever Pcs (1 pc available for every unit of VCB)
Secondary Sockets Assembly With
ŕ Not required ŕ Required (Extra price needed)
\*# —
Check List

By: (Signature & Stamp)

Remark:

1 Please tick Ĭ in ŕ and send this checking list along with o¡cial purchase order.
2 One secondary socket with jacks is o!ered for each SecoVac. One operation lever and one charging lever is o!ered for each ve SecoVac of each
project. Additional quantity required beyond above will be charged.
3 "Standard" herein means the solutions listed in SecoVac brochure. Should you have any question, please feel free to contact us.
4 If Option 1 or 2 is not ticked, SecoVac will not be equipped with related function. If Option 2 or other nonstandard solution is required, it will be charged
additionally, and the delivery time will be longer.

38
Greater China
Shanghai Taiwan
4F, Building 2, CTP, No.1 Hua Tuo Rd. Zhang Jiang Hi-Tech 6F, No. 8, Min Sheng E. Rd., Sec. 3, Taipei 10480
Park, Shanghai, China 201203 T : +886 2 2183 7000
T : +86 21 3877 7888 F : +886 2 2516 6829
F : +86 21 3877 7600

South East Asia

Malaysia Philippines Indonesia
Level 6, 1 Sentral, Jalan Travers, Kuala Lumpur Sentral 8F Net Cube Building, 30th Street, Corner 3rd Avenue, BRI II Tower, 27th floor, Jl. Jend. Sudirman No. 44-46
Kuala Lumpur, Malaysia 50470 Crescent West Park, Global City Taguig 1634 Jakarta 10210
T : +603 2273 9788 T : +63 2 877 7000 T: +62 21 573 0430
F : +603 2273 7988 F : +63 2 846 0629 F: +62 21 574 7089

Thailand Vietnam Singapore

25th floor, CRC Tower, All Seasons Place, 87/2 Wireless Saigon Centre, Unit 1, Floor 7, Le Loi Boulevard, District 1 240 Tanjong Pagar Road, #06-00 GE Tower
Road, Lumpini, Pathumwan, Bangkok 10330 HoChiMinh City Singapore 088540
T : +66 2 648 0240 T : +84 8 3914 6700 T : +65 6326 3718
F : +66 2 648 0200 F : +84 8 3827 8229 F : +65 6326 3015

India
India
Polt No. 42/1 & 45/14, Electronic City-Phase II
Bangalore-560100
T: (080) 41434000
F: (080) 41434199

Australia & New Zealand

Australia New Zealand
125-127 Long Street, Smithfield, Sydney, NSW 2164 Level 1, 8 Tangihua Street, Auckland, North Island
T : +61 2 8788 6911 T : +64 9 353 6706
F : +61 2 8788 7224 F : +64 9 353 6707

North Asia
Japan Korea
11F, Akasaka Park Bldg.,5-2-20, Akasaka, Minato-ku 3rd Floor, GE Tower, 71-3, Cheongdam-dong, Gangnam-gu
Tokyo 107-6111 Seoul, Korea 135-100
T : +81 3 3588 5288 T : +82 2 6201 4501
F : +81 3 3585 3010 F : +82 2 6201 4344

Europe & Middle East

Spain Italy Russia
P.I. Clot del Tufau, s/n, E-08295 Sant Vicenç de Castellet Centro Direzionale Colleoni, Via Paracelso 16 27/8, Electrozavodskaya street, Moscow, 107023
T: +34 900 993 625 Palazzo Andromeda B1, I-20041 Agrate Brianza (MB) T: +7 495 937 11 11
T: +39 2 61 773 1
Belgium South Africa
Nieuwevaart 51, B-9000 Gent Netherlands Unit 4, 130 Gazelle Avenue, Corporate Park Midrand 1685
T: +32 (0)9 265 21 11 Parallelweg 10, Nl-7482 CA Haaksbergen P.O. Box 76672 Wendywood 2144
T: +31 (0)53 573 03 03 T: +27 11 238 3000
Finland
Kuortaneenkatu 2, FI-00510 Helsinki Germany United Arab Emirates
T: +358 (0)10 394 3760 Robert-Bosch Str. 2a, 50354 Hürth-Efferen 1101, City Tower 2, Sheikh Zayed Road,
T: +49 (0) 2233/ 9719-0 P.O. Box 11549, Dubai
France T: +971 43131202
Paris Nord 2, 13, rue de la Perdrix Portugal
F-95958 Roissy CDG Cédex Rua Camilo Castelo Branco, 805, Apartado 2770 United Kingdom
T: +33 (0)800 912 816 4401-601 Vila Nova de Gaia Houghton Centre, Salthouse Road, Blackmills,
T: +351 22 374 60 00 Northampton
Poland NN4 7EX
Ul. Odrowaza 15, 03-310 Warszawa Hungary T: +44 (0)800 587 1239
T: +48 22 519 76 00 Vaci ut 81-83. H-1139 Budapest
and T: +36 1 447 6050
Ul. Leszczyńska 6, Bielsko-Biała 43-300
T: +48 33 828 62 33

Latin America
Latin America Brazil
790 N.W. 107th Avenue, Suite 200, Miami, Fl 33172 USA Av. María Coelho Aguiar, 215, Bloco C - 6.Andar
T: +1 305 551 5155 Jd.São Luiz, 05804-900, São Paulo
T: +55 11 36141900
Chile
Vespucio Norte, Avenida Presidente Eduardo Frei Mexico
Montalva 6001, Edificio N° 66 Av. Churubusco 3900 Nte, Col. Industrial Benito Juárez
Comuna: Conchalí, Sector el Cortijo, Santiago Monterrey, N.L. 64517
T: (56 2) 928-4700 T: (01-800) 800-1968

North America
USA
41 Woodford Avenue, Plainville CT, USA 06062
and
12305 Kurland Drive, Houston, TX USA 77034
T: +1 800-431-7867
GE
Industrial Solutions

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Printing Code: IN201302B30EN
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