Outdoor Porcelain Clad Vacuum Circuit Breaker
Type PCVCB for 12 / 36 kV Rating
No. 94/8, Melakkal Road, Kochadai, Madurai - 625 016,
Tamilnadu, INDIA.
Phone : +91-452-4292443
Mobile : 9443240694, 9443250694
E-mail : energy_tec@yahoo.com Website : www.energytec.co.in
Outdoor Vacuum Circuit Breaker
Type PCVCB for 12 / 36kV Applications
Standard features
Designed and type tested as per IEC 62271-100
–Vacuum interruption
Porcelain clad construction suitable for outdoor
substation
Long electrical life with proven vacuum
interrupters that utilize the excellent arc
quenching and insulating properties
Suitable for auto-closure duty cycle of O-0.3 sec-
CO-3 min-CO
Simple and reliable spring mechanism minimizes
operating energy and ensures longer mechanical
life
Simple installation – structure mounted with
option of extension
The complete breaker can be shipped as one unit
with minimal adjustments to be made on site. As
an option the breaker can be shipped in knocked-
down kits which can be easily assembled at site
Applications
1. Distribution networks
2. Capacitor switching
Base cabinet
3. Frequent switching duties
The cabinet is made of painted mild steel. The cabinet
4. Arc furnace duty
5. Rapid auto-reclosing houses a spring operated mechanism which is
6. Switching unloaded transformers and reactors mechanically linked to all three poles. The cabinet also
includes the following:
Pole assembly
Anti-condensation heater
Pole assembly consists of three poles and a
common duct –Each pole comprises a vacuum
Circuit breaker status indicator
bottle
contacts and an insulating pull rod placed in the Mechanical operation counter
porcelain housing
Breaker control switches
Robust housing for protection against hazardous
conditions Anti-pumping relay
Primary terminal connectors are provided. AC / DC fuses
Poles are interconnected with each other as well Auxiliary wiring
as to the operating mechanism with a linkage
arrangement Terminal blocks
Simple design - minimizes spare parts
Outdoor Vacuum Circuit Breaker
Operating mechanism
Transportation, erection, commissioning and
For high operational reliability and minimal maintenance,
maintenance
a simple and robust spring-operated mechanism is used. To minimize erection time, the breaker is
transported as an assembled unit which needs
Features
to be tted on the mounting structure (supplied
along with the breaker) at site.
O-C-O operation without recharging
Closing spring is charged by a motor in less than The breaker can also be transported in parts if
required
15 seconds
Mechanical / electrical anti-pumping The advanced circuit breaker design minimizes
maintenance
Provision for manual charging
T-N-C Switch provided for manual closing and
tripping
Mechanical 'ON-OFF' and 'SPRING CHARGED'
indication
Auxiliary switch: 6 NO+ 6 NC
Additional tripping solenoid (optional)
In-built spring charging handle
High reliability of Coil due to continuous duty
capacity
Mounting structure Certi ed routine tests
A robust Hot-Dip Galvanized steel angle structure is used for Each breaker is subjected to the following routine
mounting the breaker which can be extended for mounting tests as per IEC 62271 - 100
current transformers and even potential transformers
Veri cation of components
depending on customer requirements.
Low / high / nominal closing coil voltage:
i.e. at 85%, 110% & 100% of nominal voltage
Low / high / nominal tripping coil voltage:
i.e. at 70%, 110% & 100% of nominal voltage
Low / high / nominal spring charging motor
voltage at 85%, 110% & 100% of nominal
voltage
Trip-free operation
Control wiring: 2000V to ground for 1 minute
Test for withstanding power frequency voltage
Opening and closing speed
Contact resistance
Technical Details
Circuit-breaker PCVCB-12 PCVCB-36
Standard IEC 62271-100
Rated voltage (kV) 12 36
Rated insulation voltage (kV) 12 36
Power frequency withstand (kV/min) 28 70
Impulse withstand voltage (kV peak) 75 170
Rated frequency (Hz) 50-60 50-60
Rated normal current (Amps) 1250 2000 2500 1250 2000 2500
Rated symmetrical breaking capacity (kA r.m.s) 25 25
Rated short time withstand current (3s) (kA r.m.s) 25 25
DC Component (%) 35 35
Rated making capacity. (kA peak) 63 63
Creepage distance (mm/kV) 25 25
Operating sequence 0-0.3sec- CO - 3 Min - CO
Opening time (ms) 25 ± 10 25 ± 10
Closing time (ms) 35 ± 10 35 ± 10
Capacitor current switching capacity
(Amps) 400 400
Single bank - C2 class
Arcing time (ms) 5-15 5-15
Total breaking time (ms) 50-60 50-60
Weight (without frame) (kg) 225 / 300 225 / 300
Operating temperature C) -25….. + 60 -25….. + 60
Over all dimensions On Frame (H x L x D) mm 2850 x 1260 x 300 3545 x 1725 x 400
ENERGYTEC
ENERGYTEC has a vast installed base, extensive manufacturing facilities and a state-wide marketing and service
presence.
The Power Products business o ers wide range of products, systems and services for power generation,
transmission and distribution. ENERGYTEC's solution capabilities in the sector range from power transmission,
substations and complete electri cation to utility automation and distribution systems.
The product o ering covers a wide spectrum of technologies across the entire voltage range including outdoor circuit
breakers, instrument transformers, and a complete range of substation panels.
Advantage ENERGYTEC
30 years of technology and innovation
Unparalleled domain competence
Total solution provider
Large installed base
Customer friendly solutions
No. 94/8, Melakkal Road, Kochadai, Madurai - 625 016, Tamilnadu, INDIA.
Phone : +91-452-4292443, Mobile : 94432 40694, 94432 50694
E-mail : energy_tec@yahoo.com Website : www.energytec.co.in
