Customer:           SERING S.R.
L                               Offer for medium-voltage
                                                               switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                               NXAIR-71868
NXAIR
Air-Insulated, Metal-Enclosed, Metal-
Clad Medium-Voltage Switchgear
Loss of Service Continuity            LSC 2B
Category:
(Metal-Clad)
Partition Class:                      PM
Internal Arc Classification:          IAC A FLR
             General Technical Description
Issue: 10.09.2017                       Printout: 10.09.2017                          Page: 1 / 23
Revision:
Customer:            SERING S.R.L                                                           Offer for medium-voltage
                                                                                            switchgear NXAIR
Project:             CELDAS MT 11 KV
Reference:           CO-EMMS-FY17                                                           NXAIR-71868
    Contents
1    Switchgear Description ................................................................................................... 3
    1.1    Switchgear Type ...................................................................................................... 3
    1.2    Panel Design in Modular Construction, Partitions .................................................... 3
    1.3    Busbar compartment ............................................................................................... 4
    1.4    Switching Device Compartment ............................................................................... 4
    1.5    Interlocks ................................................................................................................. 5
    1.6    Connection Compartment ........................................................................................ 5
    1.7    Low-Voltage Compartment ...................................................................................... 6
2    Features and Customer Benefits .................................................................................... 7
3    Standards ..................................................................................................................... 10
4    Switchgear Data ........................................................................................................... 11
5    Scope of Supply............................................................................................................ 12
6    Documentation ............................................................................................................. 23
Issue: 10.09.2017                                        Printout: 10.09.2017                                                Page: 2 / 23
Revision:
Customer:           SERING S.R.L                                Offer for medium-voltage
                                                                switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                NXAIR-71868
1 Switchgear Description
1.1       Switchgear Type
The offered switchgear is an air-insulated, type-tested, metal-enclosed and metal-clad
medium-voltage switchgear for indoor installation. This switchgear complies with IEC 62271-
200 and therefore fulfils the following classifications:
Loss of service continuity category: LSC 2B (metallic partition, i.e. separate partitions for
busbar, switching device and connection compartments)
Partition class PM (metalic partition)
Internal arc classification: IAC A FLR
In connection with the vacuum circuit-breaker SION, the switchgear offers the following
customer benefits:
         Peace of mind
         Saves lives
         Increases productivity
         Saves money
         Conserves the environment
Air-insulated switchgear has been successfully in operation for decades; air as insulating
medium is always available; all switchgear components are always accessible considering
the safety regulations.
1.2       Panel Design in Modular Construction, Partitions
An NXAIR panel consists of the following compartments:
         Busbar compartment
         Switching device compartment
         Connection compartment
         Low-voltage compartment
The individual sheet-steel compartments are bolted together to one switchgear panel.
Separation walls to the adjacent panels are always double. Doors and lateral switchgear end
walls are powder-coated with resistant epoxy resin, all other walls are galvanized.
The complete enclosure and the partitions between the individual compartments and covers
are metallic and earthed. This guarantees the highest possible service continuity category
LSC 2B of the switchgear (metal-clad design) and the highest possible personal safety with
partition class PM according to IEC 62271-200. This offers the benefits “saves lives", "peace
of mind” and “increases productivity”.
The loss of service continuity category LSC 2B allows access to compartments while other
adjacent compartments remain in operation. For example, it is possible to maintain the
busbar compartment of one panel, as well as all compartments of the adjacent panels, in
operation while the switching device compartment and connection compartment are open. In
Issue: 10.09.2017                        Printout: 10.09.2017                          Page: 3 / 23
Revision:
Customer:           SERING S.R.L                                    Offer for medium-voltage
                                                                    switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                    NXAIR-71868
this way, the category LSC 2B provides the highest possible service continuity. This feature
offers the customer benefit “increases productivity”.
The individual compartments are pressure-resistant, so that - in case of an internal fault (arc
fault<= 31,5 kA 1s resp. 40 kA 0.1s) no burn through of partitions and no re-ignition in
adjacant compartments occur. This offers the benefits “peace of mind” and “increases
productivity”.
In case of an arc fault, pressure is generally relieved upwards in all three compartments.
NXAIR switchgear is tested for resistance to internal faults according to IEC 62271-200 and
fulfills all criteria of the internal arc classification IAC A FLR according to IEC 62271-200. It is
therefore adequate for universal installation and access from all sides. This feature offers the
customer benefit “saves lives”.
The partition class PM ensures that only earthed steel sheets can be touched during access
to the individual compartments. This guarantees the highest possible personal safety during
maintenance work. This feature offers the customer benefit “saves lives”.
1.3       Busbar compartment
The busbar compartment contains the three-phase busbars made of round-edge standard
profile copper, the panel bars and the bushing-type insulators with the fixed contacts.
The shutter for visual inspection of the fixed contacts can be opened and closed individually
in the switching device compartment. Busbars are bolted from panel to panel.
Accessability of busbar is possible after removing of partitions. In this way, access to the
busbar compartment is “tool-based” according to IEC 62271-200.
Possible additional components (voltage transformers, earthing switch, bus riser) are
mounted in a separate additional compartment.
1.4       Switching Device Compartment
The switching-device compartment can be equipped with the following devices:
         Vacuum circuit-breaker withdrawable
         Vacuum contactor withdrawable
         Disconnecting link withdrawable
         Metering device withdrawable
The mechanical position indicators and control elements of the respective switching devices
are visibly integrated in a mimic diagram in the door of the switching device compartment. In
connection with the logical mechanical interlocking system, this avoids any maloperation and
guarantees the customer benefit “peace of mind”.
While racking from the service to the test position or vice versa, the withdrawable part opens
or closes the metal shutters (positively driven) covering the fixed contacts in the connection
and busbar compartments.
The connection of the low-voltage wiring between the withdrawable part and the fixed part of
the panel is done via a 64-pole plug connection.
Generally, the low-voltage wiring is laid in metallic ducts with removable covers.
Issue: 10.09.2017                           Printout: 10.09.2017                           Page: 4 / 23
Revision:
Customer:           SERING S.R.L                                  Offer for medium-voltage
                                                                  switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                  NXAIR-71868
In connection with the door interlock, access to the switching device compartment is
“interlock-based” according to IEC 62271-200.
The application of maintenance-free vacuum circuit-breakers reduces the maintenance and
shutdown times. In comparison with other switching technologies, this increases the
switchgear availability and reduces the maintenance costs. Using the vacuum technology as
quenching medium, arc quenching in the circuit-breaker does not produce any highly toxic
decomposition products. These features offer the benefit “saves lives", "peace of mind",
"increases productivity", "saves money” and "conserves the environment".
1.5       Interlocks
Following interlocking conditions specified according to IEC 62271-200 / VDE 0671-200 are
fulfilled:
         Feeder earthing switch can only be operated with switching device in disconnected
          position
         Switching device can only be racked on the movable part with the accociated
          switching device in OPEN position and with feeder earthing switch OPEN
         Switching device can only be operated in interlocked disconnected or service position
         Switching of switching device in ON position only possible with plugged low voltage
          connection
         Beyond the specification of standards:
         Moving of withdrawable part only possible with closed high voltage door
         Coding prevents insertion of switching device with a lower rated normal current into
          panels with higher rated normal current
         optionally electromagnetic interlocks, mechanical key interlocking systems or
          padlocks
Operator safety is guaranteed by the a.m. interlocks and operations. This feature offers the
customer benefit “saves lives”.
The circuit-breaker and make-proof earthing switch are type-tested in the panel according to
IEC 62271-200. This guarantees reliable operation in the panel. This feature offers the
customer benefit “peace of mind“.
1.6       Connection Compartment
The connection compartment can contain the following components:
         cable sealing ends resp. bar connection
         Current transformers or bushing type insulators
         Make-proof earthing switch
         Voltage transformers
Issue: 10.09.2017                         Printout: 10.09.2017                           Page: 5 / 23
Revision:
Customer:           SERING S.R.L                                  Offer for medium-voltage
                                                                  switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                  NXAIR-71868
         Surge arresters or limiters
         Earthing busbar
         Zero-sequence current transformers
The shutter for visual inspection of the fixed contacts can be opened and closed individually
in the switching device compartment.
The lower partition is bolted and offers access to the connection compartment from the front
during installation.
Cable connection is optionally possible from the front or the rear. With cable connection from
the front, the connection compartment is an “interlock-based and tool-based accessible
compartment” according to IEC 62271-200. With cable connection from the rear, access is
“tool-based”.
Cable testing equipment resp. cable testing adapters can be easily connected without
detaching the cables. For this purpose, the shutters can be opened and locked separately.
To guarantee personal safety, the shutters of the busbar compartment are optionally
equipped with a padlock.
1.7       Low-Voltage Compartment
The low-voltage compartment is located at the front. It is completely partitioned off the rest of
the panel and can be removed from the panel.
Electrical connections between the withdrawable part and the fixed part of the panel are
performed with flexible wires and a 64-pole low-voltage plug connection.
Current transformer leads are wired to terminals in the low-voltage compartment. All other
panel-internal circuits are wired to 10-pole connectors and plugged in the low-voltage
compartment.
Bus wires are laid from panel to panel in the upper part of the low-voltage compartment and
are pluggable.
Secondary devices are installed in the door of the low-voltage compartment and on a
mounting plate with a top-hat rail system. The wires are laid in wiring ducts with a sufficient
cross-section.
Issue: 10.09.2017                        Printout: 10.09.2017                            Page: 6 / 23
Revision:
Customer:           SERING S.R.L                                 Offer for medium-voltage
                                                                 switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                 NXAIR-71868
2 Features and Customer Benefits
     Customer Benefits                     Features
1    Peace of Mind                    ●    insulation medium AIR always available, monitoring
                                           of pressure of insulation medium not needed,
                                           components of switchgear always accessible
                                      ●    Platform concept worldwide
                                      ●    Factory-assembled, type-tested switchgear
                                           according to IEC 62271-200
                                      ●    Flexibility in low-voltage equipment (different
                                           compartment sizes, pluggable wiring, low-voltage
                                           compartment removable)
                                      ●    pressure tied partitions (<= 31.5 kA 1s resp. 40 kA
                                           0.1s), focussed pressure
                                           release via chanel and absorbers or with channel to
                                           outside
                                      ●    Use of maintenance-free vacuum circuit-breakers
                                      ●    use of standardized block type current trans-
                                           formers resp. bushing type insulators
                                      ●    more than 400,000 air-insulated switchgear
                                           panels from Siemens in operation world-wide
                                      ●    Type testing of vacuum circuit-breaker and make-
                                           proof earthing switch in the panel
                                      ●    Use of standard components available worldwide
                                      ●    Quality assurance according to DIN EN ISO 9001
Issue: 10.09.2017                         Printout: 10.09.2017                          Page: 7 / 23
Revision:
Customer:           SERING S.R.L                                  Offer for medium-voltage
                                                                  switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                  NXAIR-71868
2    Saves Lives                      ●    Loss of service continuity category LSC 2B
                                           (separate partitions for busbar, connection and
                                           switching device compartments)
                                      ●    Partition class PM (metallic partition) in pressure-
                                           resistant design
                                      ●    Positively driven shutters
                                      ●    Internal arc classified switchgear according to IAC
                                           A FLR for arc duration 1 s, optionally 0.1 s (front,
                                           lateral, rear accessibility)
                                      ●    Metallic enclosure, earthed shutters and partitions
                                      ●    All switching operations with high-voltage door
                                           closed
                                      ●    Position indicators and control elements on high-
                                           voltage door
                                      ●    Interlocks of high-voltage door
                                      ●    Logical mechanical interlocking system
                                      ●    Use of maintenance-free vacuum circuit-breakers
                                      ●    Standard degree of protection IP 3XD, optionally
                                           IP40, IP50, IP51
Issue: 10.09.2017                         Printout: 10.09.2017                           Page: 8 / 23
Revision:
Customer:           SERING S.R.L                                  Offer for medium-voltage
                                                                  switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                  NXAIR-71868
3    Increases Productivity           ●    Loss of service continuity category LSC 2B
                                           (separate partitions for busbar, connection and
                                           switching device compartments)
                                      ●    Partition class PM
                                      ●    Positively driven shutters
                                      ●    Pressure resistant partitions (<= 31,5 kA 1s resp.
                                           40 kA 0.1s), pressure release via absorbers resp.
                                           channnel to outside
                                      ●    Block-type current transformer principle;
                                           standardized design
                                      ●    Degree of protection IP3XD, optionally IP4X, IP50,
                                           IP51
                                      ●    Cable testing without isolating the busbar
                                      ●    Use of maintenance-free vacuum circuit-breakers
                                      ●    More than 400,000 air-insulated switchgear panels
                                           from Siemens in operation worldwide
                                      ●    Control cables in metallic wiring ducts
4    Saves Money                      ●    Maintenance-free vacuum circuit-breaker,
                                           maintenance intervals of switchgear > 10 years
                                      ●    Compact switchgear design, width 435 mm, 600
                                           mm, 800 mm resp. 1000 mm, type-tested height of
                                           switchgear room >2500 mm (building investments)
                                      ●    Interruption of operation reduced to a minimum by
                                           logical mechanical interlocking system
                                      ●    Flexible cable connection options enable small
                                           building dimensions
5    Conserves the                    ●    Insulation medium air is always available
     environment
                                      ●    Local production presence in all regions, minimized
                                           energy consumption regarding transport
                                      ●    Service life >30 years optimizes the energy
                                           ballance additionally
                                      ●    Used material is fully recycable without special
                                           knowledge
Issue: 10.09.2017                         Printout: 10.09.2017                           Page: 9 / 23
Revision:
Customer:           SERING S.R.L                                  Offer for medium-voltage
                                                                  switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                  NXAIR-71868
3 Standards
IEC-Standards               Name
IEC 62 271-200              A.C. metal-enclosed switchgear and controlgear for rated
                            voltages above 1 kV and up to and including 52 kV
IEC 62 271-1                Common clauses for high-voltage switchgear and controlgear
                            standards
IEC 62 271-100              High-voltage alternating current circuit-breakers
IEC 60 529                  Degree of protection provided by enclosures (IP-code)
IEC 62 271-102              High-voltage alternating current disconnectors and earthing
                            switches
IEC 60470                   High-voltage alternating current contactors and contactor-based
                            motor-starters
IEC 62 271-105              High-voltage alternating current switch-fuse combinations
IEC 60 071 - 1              Insulation co-ordination for equipment in three-phase systems
                            above 1 kV
IEC 60 282 - 1              Current limiting fuses
IEC 61 243-5                Working under voltage - Voltage detectors – Part 5: Voltage
                            detection systems
IEC 61 689-1                Instrument transformers - Part 1:
                            General requirements
IEC 61 689-2                Instrument transformers - Part 2:
                            Additional requirements for inductive current transformers /
                            Applies in conjunction with IEC 61869-1 (2007-10)
IEC 61 689-3                Instrument transformers - Part 3:
                            Additional requirements for inductive voltage transformers /
                            Applies in conjunction with IEC 61869-1 (2007-10)
IEC 60 721-3-3              Classification of environmental conditions
Issue: 10.09.2017                         Printout: 10.09.2017                          Page: 10 / 23
Revision:
Customer:             SERING S.R.L                                                           Offer for medium-voltage
                                                                                             switchgear NXAIR
Project:              CELDAS MT 11 KV
Reference:            CO-EMMS-FY17                                                           NXAIR-71868
4 Switchgear Data
Installation ..................................................................................................................... Indoor
Number of phases ................................................................................................................. 3
Busbar system ................................................................................................... Single busbar
Rated voltage .............................................................................................................. 17.5 kV
Operating voltage ........................................................................................................ 11.0 kV
Rated frequency ............................................................................................................. 50 Hz
System neutral earthing ................................................................................... Solidly earthed
Rated short-duration power-freq. withstand voltage ....................................................... 38 kV
Rated lightning impulse withstand voltage ..................................................................... 95 kV
Ambient air temperature ................................................................................................. 35 °C
Rated normal current of busbar .................................................................................... 2500 A
Max permissible busbar current at 35 °C ..................................................................... 2540 A
Busbar insulation............................................................................................................... with
Bus bar transverse partition............................................................................................... with
Rated short-time withstand current .............................................................................. 31.5 kA
Rated duration of short-circuit .............................................................................................3 s
Rated peak withstand current ......................................................................................... 80 kA
Rated short-circuit breaking current............................................................................. 31.5 kA
Rated short-circuit making current .................................................................................. 80 kA
Degree of protection for enclosure ................................................................................... IP4X
Degree of protection for partitions .................................................................................... IP2X
Loss of service continuity category ............................................................................... LSC2B
Partition class ..................................................................................................................... PM
Internal arc classification ................................................................................................. IAC
Type of accessibility front / lateral / rear ........................................................................ A FLR
Type of Installation .............................................................................................. Freestanding
Design .....................................................................................................Withdrawable design
Internal arc fault current .............................................................................................. 31.5 kA
Arc-fault duration .............................................................................................................. 1,0 s
Cable access from .......................................... front (wallstanding) or front/rear (freestanding)
Panel width .......................................................................................................... see drawing
Panel depth .......................................................................................................... see drawing
Panel height ..............................................................................................................2300 mm
Height of switchgear room ( min. ) .............................................................................2500 mm
The distance between the wall and the switchgear on the side where the evacuation duct is
assembled must be 500 mm as a minimum.
Shipping Type:
Color of switchgear ..................................................................................................RAL 7035
Other details as per scope of supply, single-line diagram and/or constructional data.
Issue: 10.09.2017                                         Printout: 10.09.2017                                              Page: 11 / 23
Revision:
Customer:           SERING S.R.L                                Offer for medium-voltage
                                                                switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                NXAIR-71868
5 Scope of Supply
The switchgear is designed as single-busbar switchgear according to the enclosed single-
line diagram.
Item No.        Quantity Typical      Description
                         No.
5.1                 1      =KZ04      SSAA
5.2                 1      =KZ05      Salida TR1
5.3                 1      =KZ06      CL11
5.4                 1      =KZ00      Switchgear accessories
In case of customer-specific designs, some points of the switchgear description might not be
valid anymore.
The offered scope of supply is equipped in detail as follows:
Issue: 10.09.2017                        Printout: 10.09.2017                         Page: 12 / 23
Revision:
Customer:           SERING S.R.L                                    Offer for medium-voltage
                                                                    switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                    NXAIR-71868
Item No.        Quantity Description                                              Typical No.:
                                                                                  =KZ04
5.1                 1      SSAA
                           Max permissible feeder current at 35 °C: 1300 A
5.1.1               1      Busbar Compartment
                           Busbar cross-section Cu 2x100x10 mm, insulated
                           with partition wall
5.1.2               1      Switching Device Compartment
                    1      Circuit breaker withdrawable part
                           Withdrawable part for the circuit breaker
                           Operating mechanism withdrawable part: Hand operated
                           Auxiliary switch withdrawable part: 4 NC + 4 NO
                           Mechanical padlocking
                           Vacuum circuit breaker, Type SION
                           Technical data: 17.5 kV / 31.5 kA / 1250 A
                           Operating mechanism circuit breaker: motor
                           Voltage of motor operating mechanism: DC 125 V
                           Voltage of closing solenoid: DC 125 V
                           Release combination:
                           1 shunt release
                           Voltage 1st tripping coil: DC 125 V
                           Auxiliary switch circuit breaker: 12 NC + 12 NO
5.1.3               1      Connection Compartment
                    1      Panel connection
                           Cable connection from top
                           Number of cable per phase
                           3 cables
                           Single-core cable max. 500 mm2
                    1      Capacitive voltage indicator on the connection side
Issue: 10.09.2017                            Printout: 10.09.2017                         Page: 13 / 23
Revision:
Customer:           SERING S.R.L                                   Offer for medium-voltage
                                                                   switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                   NXAIR-71868
                           Capacitive voltage indication system, Type: VOIS
                    3      Surge arrester
                           Surge arrester Type 3EK7
                           Max. operating voltage: 17.5 kV
5.1.4               1      Low Voltage Compartment
                           Height 630 mm
                           equipped as follows:
                    1      Fluorescent lamp 6/8W
                    1      POSITION SWITCH, OPEN TYPE WITH NORMAL S
                    1      SOCKET ELECTRICO SERIE SD 035,03505.0-01
                    1      mcb, 1-pole, 10A
                    3      auxil.contact 1NO+1NC
                    2      CH10-A223-600-FT2 MULTISTEP SWITH 2 POS
                    3      illuminated pushbutton, green
                    3      illuminated pushbutton, yellow
                    3      ACTUATOR-/INDICATOR COMPONENT LAMP HOLDE
                    1      mcb, 2-pole, 2A
                    1      mcb, 2-pole, 4A
                    1      P1J39446_7SJ82 OVERCURRENT PROTECTION
                    1      test switch with open star point
                    1      Installation costs
                    1      Basic wiring costs
                    1      Wiring options
                    1      Terminal costs
                           Mounting and Wiring
5.1.5                      Customer-specific designs
                    1      CB+FU PANEL
Issue: 10.09.2017                           Printout: 10.09.2017                         Page: 14 / 23
Revision:
Customer:           SERING S.R.L                                   Offer for medium-voltage
                                                                   switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                   NXAIR-71868
Item No.        Quantity Description                                             Typical No.:
                                                                                 =KZ05
5.2                 1      Salida TR1
                           Max permissible feeder current at 35 °C: 2355 A
                           Ventilation with poke-protected slots
5.2.1               1      Busbar Compartment
                           Busbar cross-section Cu 2x100x10 mm, insulated
                           with partition wall
5.2.2               1      Switching Device Compartment
                    1      Circuit breaker withdrawable part
                           Withdrawable part for the circuit breaker
                           Operating mechanism withdrawable part: Hand operated
                           Auxiliary switch withdrawable part: 4 NC + 4 NO
                           Mechanical padlocking
                           Vacuum circuit breaker, Type SION
                           Technical data: 17.5 kV / 31.5 kA / 2500 A
                           Operating mechanism circuit breaker: motor
                           Voltage of motor operating mechanism: DC 125 V
                           Voltage of closing solenoid: DC 125 V
                           Release combination:
                           2 shunt releases
                           Voltage 1st tripping coil: DC 125 V
                           Voltage 2nd tripping coil: DC 125 V
                           Auxiliary switch circuit breaker: 12 NC + 12 NO
5.2.3               1      Connection Compartment
                    1      Panel connection
                           Cable connection from bottom
                           Number of cable per phase
                           4 cables
                           Single-core cable max. 500 mm2
Issue: 10.09.2017                           Printout: 10.09.2017                         Page: 15 / 23
Revision:
Customer:           SERING S.R.L                                    Offer for medium-voltage
                                                                    switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                    NXAIR-71868
                    3      Current transformer in the connection compartment
                           Designed as block type current transformer,
                           assembled in the connection compartment
                           3 x 2 cores in L1/L2/L3
                           Primary current: 2500 A
                           Secondary current: 5 A / 5 A
                           Core 1: 15 VA / Cl. 5P / 20
                           Core 2: 15 VA / Cl. 0.5 / FS5
                    1      Capacitive voltage indicator on the connection side
                           Capacitive voltage indication system, Type: VOIS
                    1      Earthing switch on the cable connection
                           Earthing switch with short-circuit making capability
                           Short-circuit current and duration: 31.5 kA / 3s
                           Auxiliary switch: 4 NO + 4 NC (only in Vacuum-Contactor-Panel:
                           2NO+2NC)
                           Operating mechanism:
                           Hand operated
                           Mechanical padlocking
5.2.4               1      Low Voltage Compartment
                           Height 630 mm
                           equipped as follows:
                    1      Fluorescent lamp 6/8W
                    1      POSITION SWITCH, OPEN TYPE WITH NORMAL S
                    1      SOCKET ELECTRICO SERIE SD 035,03505.0-01
                    1      mcb, 1-pole, 10A
                    5      auxil.contact 1NO+1NC
                    2      CH10-A223-600-FT2 MULTISTEP SWITH 2 POS
                    3      illuminated pushbutton, green
                    3      illuminated pushbutton, yellow
                    3      ACTUATOR-/INDICATOR COMPONENT LAMP HOLDE
Issue: 10.09.2017                          Printout: 10.09.2017                           Page: 16 / 23
Revision:
Customer:           SERING S.R.L                                   Offer for medium-voltage
                                                                   switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                   NXAIR-71868
                    2      mcb, 2-pole, 2A
                    2      mcb, 2-pole, 4A
                    1      P1J39446_7SJ82 OVERCURRENT PROTECTION
                    1      test switch with open star point
                    1      Installation costs
                    1      Basic wiring costs
                    1      Wiring options
                    1      Terminal costs
                           Mounting and Wiring
Issue: 10.09.2017                           Printout: 10.09.2017                         Page: 17 / 23
Revision:
Customer:           SERING S.R.L                                   Offer for medium-voltage
                                                                   switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                   NXAIR-71868
Item No.        Quantity Description                                             Typical No.:
                                                                                 =KZ06
5.3                 1      CL11
                           Ventilation with poke-protected slots
5.3.1               1      Busbar Compartment
                           Busbar cross-section Cu 2x100x10 mm, insulated
                           with partition wall
5.3.2               1      Switching Device Compartment
                    1      Disconnecting withdrawable part
                           Disconnecting withdrawable part
                           Operating mechanism withdrawable part:
                           Hand operated
                           Rated current: 2400 A
                           Auxiliary switch truck: 4 NC + 4 NO
                           Mechanical padlocking
5.3.3               1      Connection Compartment
                    1      Panel connection
                           Cable connection from bottom
                           Number of cable per phase
                           4 cables
                           Single-core cable max. 500 mm2
                    3      Current transformer in the connection compartment
                           Designed as block type current transformer,
                           assembled in the connection compartment
                           3 x 1 core in L1/L2/L3
                           Primary current: 2500 A
                           Secondary current: 5 A
                           Core 1: 30 VA / Cl. 0.5 / FS5
Issue: 10.09.2017                           Printout: 10.09.2017                         Page: 18 / 23
Revision:
Customer:           SERING S.R.L                                    Offer for medium-voltage
                                                                    switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                    NXAIR-71868
                    1      Capacitive voltage indicator on the connection side
                           Capacitive voltage indication system, Type: VOIS
                    1      Earthing switch on the cable connection
                           Earthing switch with short-circuit making capability
                           Short-circuit current and duration: 31.5 kA / 3s
                           Auxiliary switch: 4 NO + 4 NC (only in Vacuum-Contactor-Panel:
                           2NO+2NC)
                           Operating mechanism:
                           Hand operated
                           Mechanical padlocking
                    3      Voltage transformer on cable connection
                           Voltage transformer withdrawable, with primary fuse (without any
                           tripping mechanism)
                           3 x 1-pole
                           Primary voltage 11.0 / v3 kV
                           Voltage of secondary winding 115 / v3 V
                           Rating and class of secondary winding 30 VA / Cl. 0.5
5.3.4               1      Low Voltage Compartment
                           Height 630 mm
                           equipped as follows:
                    1      Fluorescent lamp 6/8W
                    1      POSITION SWITCH, OPEN TYPE WITH NORMAL S
                    1      SOCKET ELECTRICO SERIE SD 035,03505.0-01
                    1      mcb, 1-pole, 10A
                    5      auxil.contact 1NO+1NC
                    2      CH10-A223-600-FT2 MULTISTEP SWITH 2 POS
                    3      illuminated pushbutton, green
                    3      illuminated pushbutton, yellow
                    3      ACTUATOR-/INDICATOR COMPONENT LAMP HOLDE
                    2      mcb, 2-pole, 2A
                    2      mcb, 2-pole, 4A
                    1      P1J39446_7SJ82 OVERCURRENT PROTECTION
Issue: 10.09.2017                          Printout: 10.09.2017                           Page: 19 / 23
Revision:
Customer:           SERING S.R.L                                   Offer for medium-voltage
                                                                   switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                   NXAIR-71868
                    1      test switch with open star point
                    1      Installation costs
                    1      Basic wiring costs
                    1      Wiring options
                    1      Terminal costs
                           Mounting and Wiring
Issue: 10.09.2017                           Printout: 10.09.2017                         Page: 20 / 23
Revision:
Customer:           SERING S.R.L                                  Offer for medium-voltage
                                                                  switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                  NXAIR-71868
Item No.        Quantity Description                                            Typical No.:
                                                                                =KZ00
5.4                        Switchgear accessories
                    1      Standard accessory set consisting of:
                           1 Hand crank for charging spring of circuit breaker
                           1 Push rod for actuating the ON/OFF push buttons
                           1 Hand lever for moving withdrawable part
                           1 Set shutter levers right/left
                           1 Socket spanner for high voltage door
                           1 Socket for low voltage door
                           1 Wall panel for accessories
                           1 Set (4 pieces per panel) lifting bolts for panel width 435 mm, 600
                           mm and 800 mm
                           1 Set (4 pieces per panel) lifting bolts for panel width 1000 mm
                           1 Operation-, 1 installation manual and 1 set supplement drawings in
                           English
                    2      One end wall
                    1      Service truck for withdrawable voltage transformers on the panel
                           connection
                    1      Hand lever for withdrawable voltage transformer
                    1      Hand lever for earthing switch
                    2      Tube of Vaseline (250 g) for connecting coppers
                    1      Can of Longtherm 2 Grease (1 kg) for isolating and mating contacts
                    2      Lubrications for 3AE 180 g of Klüber-Isoflex Topas L32
                    3      Fixing material per panel
                    1      Spare assembly parts for wiring on site to Phoenix Standard
                           terminals, consisting of:
                           Type UPCV3K:
                           12 Bus wiring terminals
                           4 plugs PCC4/6-ST-7.62
                           50 contacts STG-MTN 1.5-2.5
                           Type VBST4-FS:
                           12 Terminals
                           4 Modul plugs with sockets
                           50 contact sockets (single pins)
                           50 insulating coverings
                    2      Touch-up pen for minor paint damages, colour RAL7035
                    3      Sealing compound for IP4X (Sikaflex)
                    1      Wall outgoing box 370 mm
                    1      Channel lenght 500 mm
                    1      Channel extendable 595 mm to 760 mm in steps 20 mm
Issue: 10.09.2017                         Printout: 10.09.2017                           Page: 21 / 23
Revision:
Customer:           SERING S.R.L                                  Offer for medium-voltage
                                                                  switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                                  NXAIR-71868
                    8      Fixing ledges
                    8      Fixing angles
                    2      Service truck for 800mm/1000mm panel with instruction notes,
                           english
                    1      Channel lenght 800 mm
                    1      Channel lenght 600 mm
                    1      Channel for IP4X, lenght 260 mm
                    1      Supply costs for NXAIR Accessory
                    1      Duties for NXAIR Accessory
                    1      Construction Cost for KuKo No.DTO_FY17NX_021.001
Issue: 10.09.2017                          Printout: 10.09.2017                         Page: 22 / 23
Revision:
Customer:           SERING S.R.L                              Offer for medium-voltage
                                                              switchgear NXAIR
Project:            CELDAS MT 11 KV
Reference:          CO-EMMS-FY17                              NXAIR-71868
6 Documentation
6.1            Single-Line Diagram                                           Annex 1
6.2            Panel Arrangement Diagram                                     Annex 2
6.3            Constructional Data                                           Annex 3
Issue: 10.09.2017                      Printout: 10.09.2017                         Page: 23 / 23
Revision: