PROVISION OF HT 11 KV BREAKER VCB PANEL AT MDSS NAVAL BASE KARWAR

Design, Manufacture, Supply, Installation, Testing and Commissioning of HT, 11 KV VCB line up 08 panels, standalone switch boards including Bus coupler with VCB and bus bar chamber consiting of 800 A VCB 11 KV - 02 Nos Incomer, 800 A VCB 11 KV - 01 No for Buscoupler and 630 A VCB 11 KV - 05 Nos outgoing, Indoor type VCB, both side extendable, 630 Amps, 25 kA / 1 Sec. totally enclosed, free standing, floor mounting type, compartment based with truck mounted Vacuum Circuit Breaker, Spring Operated Electrically and Manually Charged Operating Mechanism suitable for horizontal isolation, horizontal draw out type VCBs with copper bus bars, Self supported Insulated Busbar with full voltage rated, complete VCB Panel conforming to IEC 62271-200 standards and IP 4X Class of protection comprising necessary bus-bar extensions and connections, Circuit Breaker suitable for E2, M2, C2 duty, Vacuum Interrupters of the circuit breakers completely encapsulated in epoxy housing, Switchgear and control gear panels of fully arc proof for 25 kA for 1 Sec AFLR with Microprocessor based Numerical Relay Communicable type in line with RS 485 Modbus Protocol, comprising of Three Over Current , One Earth Fault Protection Relay with high set for both Phase & Earth and with Fault Memory, Universal Auxiliary Supply, Master Trip Relay, Trip Circuit Supervision Relay, Digital Multifunction Meter with Class 1.0, PT 11KV/110V AC, Power Pack 11KV/230V AC Complete all as specified and as directed and with the following features:-

11 kV, 800 Amps, 25 KA VCB Incomer Panel - 02 Nos Shall be consisting of the following each: [a] 800 Amps Continuous high conductivity electrolytic copper bus bar, Raychem Insulated for full voltage, phase identification made at the end by coloured tape, bus bar shall be mounted on integral seal of bushing and inter connection with electrolytic grade copper with joints silver plated. [b] Circuit Breaker shall be mounted on with drawable truck which shall roll out horizontally from service position to isolated position with ease. [c] Motorised Spring Charged Mechanism 230V, AC. [d] Cast Resin Current Transformer , 11 KV , 200-100/1+1 Amp , 15 VA, CI 5P 10, CL:0.5 - 03 Nos. [e] Cast Resin 3 Phase PT 11KV/110 volts, 100 VA , CI 1.0 - 03 Nos with 3A capacity PT Fuses.

[f] Accessories like Local Remote Selector Switch, Breaker Control Switch [TNC] , Space Heater with Thermostat, DC & AC control circuit through MCB, Indication Lamps for RYB Phases , Spring Charged, DC Supply Health Breaker ON/OFF, Breaker in Service, Test, Disconnected Position. [g] Multi Function Meter, Digital Type [Displaying A, V, PF, Hz, KVA, KW, KVAR, KWH, KVARH etc. Class 0.5 with RS 485 Port [MODBUS PROTOCOL] [h] High Speed Master Trip Relay - 01 No [i] Trip Circuit Supervision Relay - 01 Set [j] PT Fuse Failure Relay - 01 set [k] Anti Pumping Relay [VAA11] - 02 Set: [l] Air Insulated Rear Bottom Entry Cable Box And Side Cable Box suitable for termination of incoming and Outgoing HT XLPE 11KV cables.

[m] Feeder Protection Relay with Phase overcurrent (50/51), Directional phase overcurrent (67), SOTF Switch On To Fault (50 HS), Current unbalance (46), Thermal overload (49), Earth fault (50N/51N), Directional earth fault (67N), Undervoltage (27), Overvoltage (59), Zero sequence voltage protection (59N), Frequency (81), auto reclose (79), Circuit breaker failure (50BF),Cold load pick-up and magnetising inrush, Programmable stages (99), CB wear. Relay shall have 4CT and 4 VT inputs. Relay shall be provided with at least 16 digital inputs and 8 digital out puts and 1 self-supervision output. Relay shall have also these features inbuilt. MIMIC display with single line representation and switch gear controls shall be possible through the MIMIC. Shall support native IEC 61850 communication Protocol, front USB for connecting to PC, conformal coating to withstand harsh environment, support PRP redundancy communication protocol on FO ports. Web server (web HMI) feature to monitor and control using LAN. Shall have minimum 1000 events. Relay shall support SNTP time synchronization & support customer defined programmable logic with minimum 8 programmable LED. Relay shall have disturbance recorder with settable sample rate from 8 cycle to 32 cycle.

[n] Panel shall also have additional features like Continuous Rated Closing / Tripping Coils, Spring Charging Handle, Manual Closing / Tripping off the VCB with Compartment Door Closed, Short Time Rating 01 Sec as per IEC 62271-200 and VCB shall be suitable for E2, M2, C2 Class. [o] Breaker shall also be provided with Auxiliary Switch 6NO + 6 NC Contacts mounted on the draw out portion of the Switchgear and Position Cell Switch with 03 NO + 1 NC Contact each for Test Position and Service Position.

11 kV, 630 Amps, 25 KA VCB Outgoing Panel [05 Nos] each consisting of: [a] 630 Amps Continuous high conductivity electrolytic copper bus bar, Raychem Insulated for full voltage, phase identification made at the end by coloured tape, bus bar shall be mounted on integral seal of bushing and inter connection with electrolytic grade copper with joints silver plated. [b] Circuit Breaker shall be mounted on with drawable truck which shall roll out horizontally from service position to isolated position with ease. [c] Motorised Spring Charged Mechanism 230V, AC. [d] Cast Resin Current Transformer , 11 KV , 200-100/1+1 Amp , 15 VA, CI 5P 10, CL:0.5 - 03 Nos. [e] Cast Resin 3 Phase PT 11KV/110 volts, 100 VA , CI 1.0 - 03 Nos with 3A capacity PT Fuses. [f] Accessories like Local Remote Selector Switch, Breaker Control Switch [TNC] , Space Heater with Thermostat, DC & AC control circuit through MCB, Indication Lamps for RYB Phases , Spring Charged, DC Supply Health Breaker ON/OFF, Breaker in Service, Test, Disconnected Position. [g] Multi Function Meter, Digital Type [Displaying A, V, PF, Hz, KVA, KW, KVAR, KWH, KVARH etc. Class 0.5 with RS 485 Port [MODBUS PROTOCOL] [h] High Speed Master Trip Relay - 01 Nos [i] Trip Circuit Supervision Relay - 01 Set [j] PT Fuse Failure Relay - 01 set [k] Anti Pumping Relay [VAA11] - 01 Set: [l] Air Insulated Rear Bottom Entry Cable Box And Side Cable Box suitable for termination of incoming and Outgoing HT XLPE 11KV cables.

[m] Feeder Protection Relay with Phase overcurrent (50/51), Directional phase overcurrent (67), SOTF Switch On To Fault (50 HS), Current unbalance (46), Thermal overload (49), Earth fault (50N/51N), Directional earth fault (67N), Undervoltage (27), Overvoltage (59), Zero sequence voltage protection (59N), Frequency (81), auto reclose (79), Circuit breaker failure (50BF),Cold load pick-up and magnetising inrush, Programmable stages (99), CB wear. Relay shall have 4CT and 4 VT inputs. Relay shall be provided with at least 16 digital inputs and 8 digital out puts and 1 self-supervision output. Relay shall have also these features inbuilt. MIMIC display with single line representation and switch gear controls shall be possible through the MIMIC. Shall support native IEC 61850 communication Protocol, front USB for connecting to PC, conformal coating to withstand harsh environment, support PRP redundancy communication protocol on FO ports. Web server (web HMI) feature to monitor and control using LAN. Shall have minimum 1000 events. Relay shall support SNTP time synchronization & support customer defined programmable logic with minimum 8 programmable LED. Relay shall have disturbance recorder with settable sample rate from 8 cycle to 32 cycle. [n] Panel shall also have additional features like Continuous Rated Closing / Tripping Coils, Spring Charging Handle, Manual Closing / Tripping off the VCB with Compartment Door Closed, Short Time Rating 01 Sec as per IEC 62271-200 and VCB shall be suitable for E2, M2, C2 Class.

[o] Breaker shall also be provided with Auxiliary Switch 6NO + 6 NC Contacts mounted on the draw out portion of the Switchgear and Position Cell Switch with 03 NO + 1 NC Contact each for Test Position and Service Position. [p] Numerical relay differential protection [87] - 1 No. [q] 12 Window annunciator. (r) Neccessary fabrication work including extension of busbar between both incommig panels for buscoupler as drawing approved by GE is included in the above qouted rate.

Supply and laying or fixing or passing through pipe or in cable ducts, 11000 volts (E) grade XLPE insulated,screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor of 3 core 240 Sqmm size complete all as specified and as directed by Engineer -in-Charge

Supply and laying or fixing or passing through pipe or in cable ducts, 11000 volts (E) grade XLPE insulated,screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor of 3 core 185 Sqmm size complete all as specified and as directed by Engineer -in-Charge