REPLACEMENT OF LT PANEL BOARD AND CAPACITOR PANEL BOARDS HT OCBs AND ELECTRICALLY OPERATED HOIST AGAINST BER AT GTRE BANGALORE

Amount

Supply & install, testing and commissioning indoor type 30 Volts battery charger suitable for and including 15 C Batteries input single phase 230 volts and out put Float 25-35 Volts DC @10 A, Boost 29 Volts at power factor 0.8 and degree of protection IP 4x, complete internal wiring with suitable copper condutor wires and each battery & charger should be mounted in the same panel with suitable ventilation, floor mounting panel fabricated out of 3 mm thick CRCA sheet with suitable angle iron frame and legs made of suitable angle iron, painted with powder coated and pre coted primer including with locking arrangement complete all as specified and directed by Engineer-in-Charge. Make: ABB / Schnieder / Seimens / L & T.

M&L for taking out existing unserviceable LT panel boards / LT capacitor panels / Feeder pillar boxes / Battery charger panel of any capacity / any size complete with all accessoies after disconnectioning the existing incoming / outgoing cables / feeder connections and shifting the same to AGE E/M store yard with out damege to the panels by using lifting machines / cranes, transporting through vehicle and stacking in proper position as per the direction of Engineer-in-Charge complete all as specified and directed.

M&L for earthing complete with copper earth plate electrode 60 cm x 60cm x 3.15 mm thick buried direcly in ground vertically to a depth not less than 2.25 meters below normal ground level with the top edge of earth plate not less than 1.5 meters below ground level connected to copper strip 20 x 3 mm by means of bolts, nuts, check nuts and washers made out of copper all as shown in electrical plate No. 3 of SSR Part-I and earth wire protected by galvanized pipe light grade 40 mm bore and thorugh test point including necessary earth work and excavation in any type of strata, GI light grade 20mm bore watering pipe with funnel and wire mesh, PCC 1:2:4 type B1 chamber with 40mm thick RCC 1:2:4 type B1 design mix cover slab with 6mm dia MS bars at 100mm c/c both ways with MS Hook 6mm dia MS bars etc complete all as specified and directed and testing on completion. Note: Copper strip 20 x 3 mm upto 7.5m length shall be deemed to include in this items rate.

Earth continuity conductor or main earthing lead of copper strip of size 20 x 3mm fixed to wall on batten or recess or chases or burried in ground or drawn in including GI pipe light grade of 32mm dia for loop earthing etc as required complete all as specified and directed.

Supply, laying, testing, jointing and commissioning XLPE insulated cable screened PVC bedded, galvanised steelstrip or wire armoured electric power cable heavy duty with aluminium conductor of size 120 Sqmm 3 core 11000 Volt grade earthed grade laid in trenches or ducts or walls or fixed on pole as required at site including taking out existing deffective cable . Note: Earth work, sand cushioning, cable protection cover, pipe and joint shall be measured and paid separately.

Supply & fixing, cable joiniting kit for 11 KV (earthed) grade cable for indoor termination cold shrink type joint complete with jointing materials and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm complete all as specified and directed by Engineer-in-Charge.

Supply, jointing & testing cable jointing kit for 11 KV (earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm complete all as specified and directed by Engineer-in-Charge.

M&L for removing the existing HT UG cables from the trenches / cable duct after necessary excavation of earth work / removal of sand from cable duct complete all as specified and directed.

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr deep for foundation etc for laying of cables, erection of poles, struts / stays etc not exceeding 10 sqm in hard / dense soil complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick of excavated soil complete all as specified and directed. Note: A deduction of 10% shall be made from total computed volume of filling to cater in bulk irrespective of machinery used for ramming.

Removal of excavated material (Soil) to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

M&L for river washed sand, sreened dry for filling in the trenches below and around the UG cable for cushioning of cable including punning down complete all as specified and directed.

M&L for un-reinforced pre cast concrete covers class HV type 300mm x 180mm x 40mm size factory made for cable protection complete all as specified and directed.

Supply and fixing, GI pipe light grade 100 mm dia for protection of HT cables under road or on wall complete all as specified and directed.

M&L for cutting of black top cover of existing road upto 1 mtr depth and 60 cm wide for laying of UG cable and pipe line, refilling and making good after laying UG cable and pipe line with PCC 1:3:6 upt0 30 cm from top of the road surface complete all as specified and directed.

M&L for dismatling the existing old vintage / unserviceable HT OCBs / HT VL type oil switches any capacity / rating installed at various sub stations inside GTRE after disconnecting electric supply from the system including making temperary method for energising electric supply system and kept in safe custody including loading by suitable crane, transporting through suitable vehicle to AGE E/M staore yard complete all as specified and directed.

Supply, install, test & commissioning indoor type HT 11 KV 800 Amps, 21.3KA for 3 sec, 3 phase, 50Hz, AC supply Vacumm Circuit Breaker (VCB) totally enclosed, free standing floor mounted type with truck mounted, horizontal isolation and horizontal drawout cubicle type having IP 4X class degree of protection, proper ventilation and control voltage 240 Volts AC and 110 Volts DC complete with CT, PT, indication lamps, meters, transducers, relays, copper bus bar 800 Amps, switches and other accessories, 8 window annunciator on each VCB complete all as specified and directed for the following at AVR substation (HT panel No. 1) :- Outgoing Feeder (VCB) - 02 Nos Tie Feeder (VCB) - 02 Nos Incoming Feeder (VCB) - 04 Nos Bus Coupler (VCB) - 01 No Bus Raiser - 01 No 1. TECHNICAL SPECIFICATION CIRCUIT BREAKER (VCB) a. The circuit breaker shall be mounted on a withdrawable truck which shall roll out horizontally from service position to isolated position with ease and it shall also be possible to take out the breaker truck from cubicle smoothly on to the floor without use of any separate handling equipment. It is preferable to provide three-point guide for withdrawal and insertion of truck into the cubicle with ball bearing arrangement on the top of the truck. Circuit breaker shall be of vacuum only and the truck shall have distinct ‘SERVICE’ & ‘TEST’ position. Isolated position by defeating the interlock shall also be inside the cubicle so that the front door of breaker compartment can be closed even in breaker isolated position. Special more than three point hinged locking arrangement shall be provided to prevent opening of door in the event of internal arc in breaker compartment. Isolation shall be horizontal.

b. All the three interrupters of individual phases shall be mounted Vertically on a common phase segregated epoxy body mounted on a truck for better insulation and avoidance of non-simultaneity of poles. Circuit breaker shall be vacuum type only. Bidders should be the manufacturer of vacuum interrupter as pre- requisite for qualifying. Interrupter mounted on the conventional individual insulators will not be accepted. No separate fiberglass sheet barrier to be used. Interrupter position on VCB should be Vertical. Horizontal Position mounting of Vacuum interrupter is not acceptable. c. It shall be operated through a common motor wound spring charged mechanism with electrical release coil for closing and shunt trip coil for tripping. Operating mechanism must have manual charging, closing and tripping facility with the provision locking facility in push to close & push to trip mechanical push button. d. The mechanism shall be such that motor will automatically recharge the mechanism springs after a closing operation enabling breaker to perform OCO operation. The charging time of motor shall be less than 15 secs making it suitable for rapid auto reclosing duty. Emergency mechanical push to trip button shall be provided for emergency manual tripping with front door closed. All the ‘MS’ components of circuit breaker mechanism shall be treated with zinc platting with olive green passivation for longer life even in adverse climatic condition. Yellow passivation shall not be acceptable. All mechanism springs shall be powder coated. Plating on mechanism spring is not acceptable. The normal current rating of circuit breaker shall be in panel rating without fan. e. There shall be minimum 4NOand 4NC contacts in breaker auxiliary switch. In case of Additional contacts, the same can be multiplied through latched type contactors. Auxiliary plug and socket shall be of minimum 24 pin plug type and shall have scrapping earth feature. Auxiliary contacts shall be suitable for continuous thermal current rating of 10A.

2. INTERLOCKS a. Circuit breaker can be inserted only in open position. Likewise, circuit breaker in closed position cannot be withdrawn. Attempt to draw out closed breaker shall not trip the breaker. b. The circuit breaker shall operate only in one of the three defined positions i.e. service, test and isolated. The breaker shall not close in any of the intermediate positions. c. The circuit breaker cannot be inserted into service position till auxiliary contacts are made. Similarly interlock prevent auxiliary contacts from being disconnected, if circuit breaker is in service position. d. It will not be possible to rack out the withdrawable part from Service to Test position when the switching device is switched ON. Similarly, it will not be possible to rack in the withdrawable part from Test to Service position, if the switching device is switched ON. e. Any attempt to rack out withdrawable part from Service to Test position will not result in switching OFF the Circuit Breaker instead the Service position will be locked till switching device is ‘ON’. f. It will not be possible to rack in or rack out withdrawable truck when the front high voltage door is open. However, a suitable defeat interlock mechanism is provided for emergency purpose. g. It will not be possible to rack in the withdrawable truck from test to service position when the low voltage control plug is not in position and locked on the truck itself. h. It will not be possible to close the door if the low voltage control plug is not engaged. 3. BUS BAR a. Bus bar material shall be Electrolytic Copper 800 Amps with PVC sleeves. b. All bus bars shall be insulated with heat shrinkable PVC sleeves. Joints shall be insulated with shrouds in busbar chamber and interphase barrier shall be provided in cable chamber. c. Phase identification shall be made at the end by colored tape. d. Bus bars shall be mounted on integral seal off bushings while passing from one compartment to another except busbar compartment.

e. Bus bar shall run throughout the switchgear without interruption so incase of any arc, arc shall travel and cause minimum damage to the switchgear. f. Temperature Rise of busbar along with other parts of switchgear shall be governed by IEC 60694, Table I. 4. CUBICLE CONSTRUCTION a. The switchgear panel shall be of sheet steel construction with ALUZINC not less than 2.5mm thickness for load bearing section and not less than 2 mm thickness for non-load bearing and shall totally dust and vermin proof. The panels shall be rigid without using any external bracings. The switchboard panels should comply with relevant IS/IEC and revision thereof and shall be designed for easy operation maintenance and further extension. Bus bar, metering circuit breaker chamber, cables and cable box chamber should have proper access for maintenance, proper interlocks should be provided. All instruments shall be non-draw out type and safe guard in every respect from damages and provided with mechanical indicator of connection and disconnection position. The switchgear shall be completed with all necessary wiring fuses, auxiliary contacts terminal boards etc. b. Width of cubicle is 600mm up to 1250A and 800 mm above 1250A. c. Joints for All front door shall be provided with neoprene or cross-linked poly ethylene gaskets self adhesive type. d. All the high voltage compartments must have pressure discharge flap for the exit of gas due to internal arc to insure operator safety. All the HV compartment design i.e. Busbar compartment, VCB compartment & cable compartment should ensure conformity to IEC 62271-200 and must be type tested individually for Internal Arc Test for AFLR 26.3kA for 100ms. The switch gear panels shall be suitable for loss of service continuity LSC 2B. Safety shutters complying with IEC-62271-200 shall be provided to cover up the fixed high voltage contacts on busbar and cable sides when the truck is moved to ISOLATED position.

e. Safety shutters shall be metallic and shall be provided to cover up the fixed High voltage contacts on bus bar and cable sides when the truck is moved to Test / isolated position. The shutters shall move automatically, through a Linkage with the movement of the truck and shall be of gravity fall type only. It shall be possible to padlock shutters individually. f. Switch gear cubicle shall have seal off bushing arrangement between the circuit breaker compartment and bus bar / C.T. cum cable compartment, i.e. the fixed isolating contacts shall be embedded in epoxy cast bushing so these act as seal off bushing to prevent transfer of arc from one compartment to the other in the event of internal arc within the cubicle & must be tested for internal arc in all three HV compartments as per new IEC 62271-200. g. Louvers can be provided for higher normal current rating however, same shall be backed up by fine wire mesh. h. Joints for All front door shall be provided with neoprene or cross-linked poly ethylene gaskets self adhesive type. For compressibility step type channel base shall be provided for easy compressibility. It shall be preferable to provide cross linked poly ethylene type. It shall be preferable to supply cubicle with gaskets between all metal to metal proper vermin proof. Minimum degree of protection shall be IP4X. 5. LOW VOLTAGE COMPARTMENT a. Low voltage compartment shall be mounted at the front on the top of breaker compartment and shall also have hinged type of door. b. All wiring shall be routed through PVC ducts and shall be terminated on to stud type terminal with plastic cover. c. For current transformer terminal shall be disconnecting link type only. d. The wire shall be of 1.1KV grade and suitable for 2KVrms for I minute power frequency high voltage.

6. CABLE COMPARTMENT a. It shall be at the rear side with rear bolted box type back covers. There shall be an inspection window at the rear back cover enabling operator to have visual inspection without opening back cover in live condition. Viewing window at the rear side shall be of poly carbonate only and shall be tested for internal arc. b. The gland plate of cable chamber shall be of minimum 3mm thickness MS sheet in two halves section with built in adjustable cable holding clamp. In case of single core cable, it shall be supplied with non- magnetic gland plate. Cable box shall accommodate 2-3Core 630 sq. mm. Cables or 6-1C cables. Addition rear extension box of minimum 500 mm depth shall be provided for cables more than the quantity mentioned above. c. Sufficient headroom shall be provided for cable termination. The distance between gland plate and terminal shall be minimum 600mm. d. Phase barrier should be provided in all three phases of cable. e. Control cable entry shall be from front and there should be a possibility of terminating to LV chamber from both right hand and left-hand side. Power cable entry shall be from rear bottom. Provision shall be available for entry of power cable or bus duct from rear bottom or rear top. 7. EARTHING a. There shall be a continuous copper earth bus of size 30 x 6 sq. mm running at the bottom of the panel. Earth bus shall be robust and shall can carry full short circuit current for 1 second. Doors, covers and all non-current carrying metallic parts shall be earthed through flexible copper wires. This also includes instrument casing and cable armour which are also connected to the earth bus. Earth bus must be tested for 26.3KA for 1 sec b. Separate earthing truck shall be provided for bus earthing and cable earthing. The earthing truck shall be so designed that it is impossible to earth a live. It shall be provided with capacitive voltage divider and complete with audio visual annunciation.

ii. Bus coupler: (a) Master Trip Relay (b) DC Supervision Relay iii. Outgoing Transformer Feeder (a) 1 No of SCADA Compactable Feeder Protection Relay 50/51 (3 phase overcurrent), 50/51N (Earth overcurrent), 67P (3 phase directional overcurrent), 67N (Earth fault directional overcurrent), 51V (Voltage controlled overcurrent), 37 (3 phase undercurrent), 46 (Negative phase sequence overcurrent), 59N (Residual over voltage), 32 (Directional Power protection (Under / Over active / reactive power), 81U/O (Under / over frequency), 49 (Thermal overload), 79 (Autoreclose), 50BF (Circuit breaker failure detection), Cold load pick up, Inrush blocking. Relay will be on Modbus Protocol Make: Schneider (Easergy P3U20) / ABB (REF 630) / Siemens (7SJ65) (b) Master Trip Relay (c) Transformer Fault Alarm/Trip Aux. Relay. For Transformer Feeder only iv. Outgoing Motor Feeder (a) 1 No of SCADA Compatible Motor protection Relay 50/51 (Short Circuit) , 50N/51N (Earth Fault), 50BF (Breaker Failure), 66 (Number of starts limitation), 37 (Loss of load / Underpower), 46 (Negative Sequence Overcurrent), 49 (Thermal Overload), 27/27LV/59 (Under voltage / Overvoltage / Re-acceleration), 86 (Latching of output relay), 48/ 51LR (Start / Stalled protection / Motor Re-acceleration), 51S (Locked rotor during start-up), 14 (Speed switch input), Emergency Restart. Relay will be on Modbus Protocol Make: AREVA (Easergy P3U20) / ABB (REM 630) /Siemens (7SJ65) (b) Master Trip Relay

• The operating temperature range shall be from –40°C to +65°C (or –40°F to +149°F). Storage and transport temperature range shall be from –40°C to +70°C (or –40°F to +158°F). The device shall have inbuilt conformal coating as per IEC60068-2-60 Standard. • The device shall support webserver/web HMI through which we can monitor and control the relays over a ethernet Lan network. • The device shall support virtual simulation through which protection functions and logic testing can be achieved without any separate software. • The device shall have USB communication port in the front for the setting software use and at the back the communication ports shall be either 2xRJ-45 Ethernet port. The device shall support Native IEC61850 Communication protocol. 12. Thermal & Humidity Monitoring System MV Switchboard shall also be provided with Condition Based Monitoring System through wireless sensor’s for Thermal & Humidity monitoring. - Self power, Battery less wireless Thermal monitoring sensors shall be provided to detect abnormal temperatures due to faulty connections at Hot point of cable termination. - Ambient monitoring sensors shall be provided at a) substation room (relative humidity & ambient temperature) and Cable Compartment of each switch gear (dew point and relative humidity) - All Sensors and Receivers shall be comply with UL 61010-1 requirements and will be UL and IEC Approved. - All sensors should be direct measurement type for temperature, and no algorithm or indirect calculation based measurement should be used - The temperature sensors installed shall be suitable for wireless, with direct contact to hot point, operating range from -25°C to 125 °C with ± 2°C accuracy, relative humidity.

d. Colors of the secondary / auxiliary wiring should confirm to IS 375/1963 and latest amendment thereof if any. All wiring shall be neatly run and group of wiring shall be securely fixed by clips so that wiring can be checked without necessity of removing the clamps. Wiring between fixed and moving portion of the panel shall be run in flexible tubes and the same shall be so mounted to avoid any damage to them due to mechanical movements. Ferrules with number shall be provided on both end of the wiring. e. All wires directly connected to trip the circuit breaker shall be distinguished by the addition of a red coloured unlettered ferrule. 11. PRE TREATMENT AND PAINTING a. Switch gear front and rear covers shall be painted for aesthetic purposes and paint shade shall be RAL 7032.

Supply, install, test & commissioning Indoor type HT 11 KV 800 Amps, 21.3KA for 3 sec, 3 phase, 50Hz AC supply Vacumm Circuit Breaker (VCB) totally enclosed, free standing floor mounted type with trucle mounted, horizontal isolation and horizontal drawout type cubicle having IP 4X class degree of protection, proper ventilation and control voltage 240Volts AC and 110 Volts DC complete with CT, PT, indication lamps, meters, transducers, relays, copper bus bar 800 Amps, switches and other accessories, 8 window annunciator on each VCB complete all as specified and directed for the following at AVR substation (HT panel No. 2) :- Outgoing Feeder (VCB) - 04 Nos Tie Feeder (VCB) - 02 Nos Incoming Feeder (VCB) - 02 Nos Bus Coupler (VCB) - 01 No Bus Raiser - 01 No

1. TECHNICAL SPECIFICATION CIRCUIT BREAKER (VCB) a. The circuit breaker shall be mounted on a withdrawable truck which shall roll out horizontally from service position to isolated position with ease and it shall also be possible to take out the breaker truck from cubicle smoothly on to the floor without use of any separate handling equipment. It is preferable to provide three-point guide for withdrawal and insertion of truck into the cubicle with ball bearing arrangement on the top of the truck. Circuit breaker shall be of vacuum only and the truck shall have distinct ‘SERVICE’ and ‘TEST’ position. Isolated position by defeating the interlock shall also be inside the cubicle so that the front door of breaker compartment can be closed even in breaker isolated position. Special more than three point hinged locking arrangement shall be provided to prevent opening of door in the event of internal arc in breaker compartment. Isolation shall be horizontal. b. All the three interrupters of individual phases shall be mounted Vertically on a common phase segregated epoxy body mounted on a truck for better insulation and avoidance of non-simultaneity of poles. Circuit breaker shall be vacuum type only. Bidders should be the manufacturer of vacuum interrupter as pre- requisite for qualifying. Interrupter mounted on the conventional individual insulators will not be accepted. No separate fiberglass sheet barrier to be used. Interrupter position on VCB should be Vertical. Horizontal Position mounting of Vacuum interrupter is not acceptable. c. It shall be operated through a common motor wound spring charged mechanism with electrical release coil for closing and shunt trip coil for tripping. Operating mechanism must have manual charging, closing and tripping facility with the provision locking facility in push to close & push to trip mechanical push button.

d. The mechanism shall be such that motor will automatically recharge the mechanism springs after a closing operation enabling breaker to perform OCO operation. The charging time of motor shall be less than 15 secs making it suitable for rapid auto reclosing duty. Emergency mechanical push to trip button shall be provided for emergency manual tripping with front door closed. All the ‘MS’ components of circuit breaker mechanism shall be treated with zinc platting with olive green passivation for longer life even in adverse climatic condition. Yellow passivation shall not be acceptable. All mechanism springs shall be powder coated. Plating on mechanism spring is not acceptable. The normal current rating of circuit breaker shall be in panel rating without fan. e. There shall be minimum 4NO & 4NC contacts in breaker auxiliary switch. In case of Additional contacts, the same can be multiplied through latched type contactors. Auxiliary plug and socket shall be of minimum 24 pin plug type and shall have scrapping earth feature. Auxiliary contacts shall be suitable for continuous thermal current rating of 10A. 2. INTERLOCKS a. Circuit breaker can be inserted only in open position. Likewise, circuit breaker in closed position cannot be withdrawn. Attempt to draw out closed breaker shall not trip the breaker. b. The circuit breaker shall operate only in one of the three defined positions i.e. service, test and isolated. The breaker shall not close in any of the intermediate positions. c. The circuit breaker cannot be inserted into service position till auxiliary contacts are made. Similarly interlock prevent auxiliary contacts from being disconnected, if circuit breaker is in service position. d. It will not be possible to rack out the withdrawable part from Service to Test position when the switching device is switched ON. Similarly, it will not be possible to rack in the withdrawable part from Test to Service position, if the switching device is switched ON.

e. Any attempt to rack out withdrawable part from Service to Test position will not result in switching OFF the Circuit Breaker instead the Service position will be locked till switching device is ‘ON’. f. It will not be possible to rack in or rack out withdrawable truck when the front high voltage door is open. However, a suitable defeat interlock mechanism is provided for emergency purpose. g. It will not be possible to rack in the withdrawable truck from test to service position when the low voltage control plug is not in position and locked on the truck itself. h. It will not be possible to close the door if the low voltage control plug is not engaged 3. BUS BAR a. Bus bar material shall be Electrolytic Copper 800 Amps with PVC sleeves. b. All bus bars shall be insulated with heat shrinkable PVC sleeves. Joints shall be insulated with shrouds in busbar chamber and interphase barrier shall be provided in cable chamber. c. Phase identification shall be made at the end by colored tape. d. Bus bars shall be mounted on integral seal off bushings while passing from one compartment to another except busbar compartment. e. Busbar shall run throughout the switchgear without interruption so incase of any arc, arc shall travel and cause minimum damage to the switchgear. f. Temperature Rise of busbar along with other parts of switchgear shall be governed by IEC 60694, Table III.

4. CUBICLE CONSTRUCTION a. The switchgear panel shall be of sheet steel construction with ALUZINC not less than 2.5mm thickness for load bearing section and not less than 2 mm thickness for non-load bearing and shall totally dust and vermin proof. The panels shall be rigid without using any external bracings. The switchboard panels should comply with relevant IS/IEC and revision thereof and shall be designed for easy operation maintenance and further extension. Bus bar, metering circuit breaker chamber, cables and cable box chamber should have proper access for maintenance, proper interlocks should be provided. All instruments shall be non-draw out type and safe guard in every respect from damages and provided with mechanical indicator of connection and disconnection position. The switchgear shall be completed with all necessary wiring fuses, auxiliary contacts terminal boards etc. b. Width of cubicle is 600mm up to 1250A and 800 mm above 1250A. c. Joints for All front door shall be provided with neoprene or cross-linked poly ethylene gaskets self adhesive type d. All the high voltage compartments must have pressure discharge flap for the exit of gas due to internal arc to insure operator safety. All the HV compartment design i.e. Busbar compartment, VCB compartment and Cable compartment should ensure conformity to IEC 62271-200 and must be type tested individually for Internal Arc Test for AFLR 26.3kA for 100ms. The switchgear panels shall be suitable for loss of service continuity LSC 2B. Safety shutters complying with IEC-62271-200 shall be provided to cover up the fixed high voltage contacts on busbar and cable sides when the truck is moved to ISOLATED position. e. Safety shutters shall be metallic and shall be provided to cover up the fixed High voltage contacts on bus bar and cable sides when the truck is moved to Test / isolated position. The shutters shall move automatically, through a Linkage with the movement of the truck and shall be of gravity fall type only. It shall be possible to padlock shutters individually.

f. Switch gear cubicle shall have seal off bushing arrangement between the circuit breaker compartment and bus bar / C.T. cum cable compartment, i.e. the fixed isolating contacts shall be embedded in epoxy cast bushing so these act as seal off bushing to prevent transfer of arc from one compartment to the other in the event of internal arc within the cubicle & must be tested for internal arc in all three HV compartments as per new IEC 62271-200. g. Louvers can be provided for higher normal current rating however, same shall be backed up by fine wire mesh. h. Joints for All front door shall be provided with neoprene or cross-linked poly ethylene gaskets self adhesive type. For compressibility step type channel base shall be provided for easy compressibility. It shall be preferable to provide cross linked poly ethylene type. It shall be preferable to supply cubicle with gaskets between all metal to metal proper vermin proof. Minimum degree of protection shall be IP4X. 5. LOW VOLTAGE COMPARTMENT a. Low voltage compartment shall be mounted at the front on the top of breaker compartment and shall also have hinged type of door. b. All wiring shall be routed through PVC ducts and shall be terminated on to stud type terminal with plastic cover. c. For current transformer terminal shall be disconnecting link type only. d. The wire shall be of 1.1KV grade and suitable for 2KVrms for I minute power frequency high voltage. 6. CABLE COMPARTMENT a. It shall be at the rear side with rear bolted box type back covers. There shall be an inspection window at the rear back cover enabling operator to have visual inspection without opening back cover in live condition. Viewing window at the rear side shall be of poly carbonate only and shall be tested for internal arc.

b. The gland plate of cable chamber shall be of minimum 3mm thickness MS sheet in two halves section with built in adjustable cable holding clamp. In case of single core cable, it shall be supplied with non- magnetic gland plate. Cable box shall accommodate 2-3Core 630 sq. mm. Cables or 6-1C cables. Addition rear extension box of minimum 500 mm depth shall be provided for cables more than the quantity mentioned above. c. Sufficient headroom shall be provided for cable termination. The distance between gland plate and terminal shall be minimum 600mm. d. Phase barrier should be provided in all three phases of cable. e. Control cable entry shall be from front and there should be a possibility of terminating to LV chamber from both right hand and left-hand side. Power cable entry shall be from rear bottom. Provision shall be available for entry of power cable or bus duct from rear bottom or rear top. 7. EARTHING a. There shall be a continuous copper earth bus of size 30x6 sq. mm running at the bottom of the panel. Earth bus shall be robust and shall can carry full short circuit current for 1 second. Doors, covers and all non-current carrying metallic parts shall be earthed through flexible copper wires. This also includes instrument casing and cable armour which are also connected to the earth bus. Earth bus must be tested for 26.3KA for 1 sec b. Separate earthing truck shall be provided for bus earthing and cable earthing. The earthing truck shall be so designed that it is impossible to earth a live. It shall be provided with capacitive voltage divider and complete with audio visual annunciation. c. In addition to scrapping earth in auxiliary plug and socket proper arrangement should be made so that during engagement of the breaker in service condition earthing contacts is made first before isolating power contacts are engaged.

iii. Protection of various type of feeders as follows: i. Incomer: (a) 1 No of SCADA compatible Feeder Protection Relay 50/51(3 phase overcurrent), 50/51N (Earth overcurrent), 67P (3 phase directional overcurrent), 67N (Earth fault directional overcurrent), 51V (Voltage controlled overcurrent), 37 (3 phase undercurrent), 46 (Negative phase sequence overcurrent), 59N ( Residual over voltage), 32 (Directional Power protection (Under / Over active / reactive power), 81U/O (Under / over frequency), 49 (Thermal overload), 79 (Autoreclose), 50BF (Circuit breaker failure detection), Cold load pick up, Inrush blocking. Relay will be on Modbus Protocol Make: Schneider (Easergy P3U20) / ABB (REF 630) / Siemens (7SJ62) (b) Master Trip Relay ii. Buscoupler: (a) Master Trip Relay (b) DC Supervision Relay iii. Outgoing Transformer Feeder (a) 1 No of SCADA Compactable Feeder Protection Relay 50/51(3 phase overcurrent), 50/51N (Earth overcurrent), 67P (3 phase directional overcurrent), 67N (Earth fault directional overcurrent), 51V (Voltage controlled overcurrent), 37 (3 phase undercurrent), 46 (Negative phase sequence overcurrent), 59N (Residual over voltage), 32 (Directional Power protection (Under / Over active / reactive power), 81U/O (Under / over frequency), 49 (Thermal overload), 79 (Autoreclose), 50BF (Circuit breaker failure detection), Cold load pick up, Inrush blocking. Relay will be on Modbus Protocol Make: Schneider (Easergy P3U20) / ABB (REF 630) / Siemens (7SJ65) (b) Master Trip Relay (c) Transformer Fault Alarm / Trip Aux. Relay. For Transformer Feeder only

iv. Outgoing Motor Feeder (a) 1 No of SCADA Compatible Motor protection Relay 50/51 (Short Circuit), 50N/51N (Earth Fault), 50BF (Breaker Failure), 66 (Number of starts limitation), 37 (Loss of load / Underpower), 46 (Negative Sequence Overcurrent), 49 (Thermal Overload), 27/27LV/59 (Under voltage / Overvoltage / Re-acceleration), 86 (Latching of output relay), 48/ 51LR (Start / Stalled protection / Motor Re-acceleration), 51S (Locked rotor during start-up), 14 (Speed switch input) , Emergency Restart. Relay will be on Modbus Protocol Make: AREVA (Easergy P3U20) / ABB (REM 630) / Siemens (7SJ65) (b) Master Trip Relay v. Outgoing Tie Feeder (a) 1 No of SCADA Compatible Feeder Protection Relay 50/51(3 phase overcurrent), 50/51N (Earth overcurrent), 67P (3 phase directional overcurrent), 67N (Earth fault directional overcurrent), 51V (Voltage controlled overcurrent), 37 (3 phase undercurrent), 46 (Negative phase sequence overcurrent), 59N (Residual over voltage), 32 (Directional Power protection (Under / Over active / reactive power), 81U/O (Under / over frequency), 49 (Thermal overload), 79 (Autoreclose), 50BF (Circuit breaker failure detection), Cold load pick up, Inrush blocking. Relay will be on Modbus Protocol .Make : Schneider (Easergy P3U20) / ABB (REF630) / Siemens (7SJ65) (b) Master Trip Relay • The Protection and Control device shall be of numerical type and designed to meet a high degree of dependability and security. • The local human machine interface (HMI) shall be based on a user-friendly and menu-structured program. The device shall include a 64x128 LCD matrix display which supports mimic (e.g. single line diagram can be drawn) and freely assignable analogue values.

b. Multifunction meter: Digital type (Displaying A, V, PF, Hz, KVA, KW, KVAR, KWh, KVARh etc.) Class 0.5 with RS485 port for communication in Modbus protocol. Make : Schneider EM 6400 or equivalent shall be provided in all incomers and outgoing feeders. 10. AUXILIARY / CONTROL WIRING a. Control supply for closing and tripping shall be 220 or 110Volts D.C. through external battery source. 230 Volts single phase A.C. supply shall also be available for the operation of spring charging motor and cubicle space heater. Wattage of closing and tripping coils shall be within 250 watts. Aux supply shall be suitably distributed along with switchgear in loop in loop out fashion. b. All Switchgear panels shall be supplied completely wired internally up to the terminal block ready to receive external cabling. c. All the secondary wiring in the panel shall have high quality PVC insulation and the same shall have conductor size of not less than 1.5 mm2 of copper. d. Colors of the secondary / auxiliary wiring should confirm to IS 375/1963 and latest amendment thereof if any. All wiring shall be neatly run and group of wiring shall be securely fixed by clips so that wiring can be checked without necessity of removing the clamps. Wiring between fixed and moving portion of the panel shall be run in flexible tubes and the same shall be so mounted to avoid any damage to them due to mechanical movements. Ferrules with number shall be provided on both end of the wiring. e. All wires directly connected to trip the circuit breaker shall be distinguished by the addition of a red coloured unlettered ferrule 11. PRE TREATMENT AND PAINTING a. Switchgear front and rear covers shall be painted for aesthetic purposes and Paint shade shall be RAL 7032.

Supply and install and testing Outdoor type HT 12 kV, 630 Amps, 21 kA SF6 Ring Main Unit (6 way) complete with 6 Vaccum Circuit Beakers plus One Bus Metering, rated voltage 12 KV, operating voltage 11 kV, rated lightning withstand voltage 75 kV, 3 phase 50 cycles, rated peak current 50 kA and rated short-time current 21 kA, FBX-C/12-21/M plus T2T2T2 plus T2T2T2 - T2 Motorised, the switching device hve sepsrste drive system which are operated with non interchangeable plug in levers the drive cabinet contains a user frienndly conrol panel with mimc diagram and RMU enclosure and support structure made of CRCA with PP based powder coating of minimum thck ness of 60 microns. (H.T Compartment (Circuit Breaker T2) of Each module consist of a vacuum - circuit breaker in cobination with a three position- switch. The three position switch fulfils the operation of the disconnector function and the earthing function. The circuit breaker unit T2 is equipped with an over current -time-release for the protection of distribution transformers. Self powered electronic numerical protection relay providing 3 over current & 1 Earth fault protection. CT protection class 5P10,2.5 VA,400/1 for incomer & out going -75/1 and CT metering class 0.5, 2.5 VA 400/1 for incomer & out going -75/1& ON , OFF, TRIP mechanism indication on the front mimic of the panel & emergency trip push Button) complete all as specified and directed for the following at GTRE Sub Stn No. 1:-

Gen Tech Data: Rataed Volt - 12 KV Operating Volt - 11 KV, Rated Lighting With Stand Voltage - 75 KV, Rataed lightning with stand Voltage-75 KV, Rated power frequency with stand voltage 28 KV 1 min, rataed frequency- 50 HZ, Rated Peak Current - 50 HZ, Rated short time current - 21 KA, Rated short time-3s, Operation - motorized, Load Break switch - 630 Amp, High Performance VCB 630 A, Disconnecter switch 63 Amp, self powered OC/EF protection relay with suitable protection CTs For X - Fer Rating 200 KVA and above with O/C Setting Ranging 20% to 200% and EF setting 10 % to 80%, Bus bar - 630 AMP, Cable Size for Vacuum Circuit Breaker - upto 300 SQ.MM 3 Core, Protection - (SF6 Gas Tank - IP 67, Outdoor enclosure - IP 54) Note: All termination of existing cable should be provided with copper lugs / thimbles and suitable size of glands & rate for the same is deemed to be included in the item.

Supply, install & testing outdoor type HT 12 kV, 630 Amps, 21 KA SF6 Ring Main Unit (4 way) complete with 4 Vaccum Circuit Beakers plus One Bus Metering, rated voltage 12 KV, operating voltage 11 kV, rated lightning withstand voltage 75 kV, 3 phase 50 cycles, rated peak current 50 kA and rated short-time current 21 kA, FBX-C/12-21/M plus T2T2T2T2 - T2 Motorised. The switching device hve sepsrste drive system which are operated with non interchangeable plug in levers the drive cabinet contains a user frienndly conrol panel with mimc diagram and RMU enclosure and support structure made of CRCA with PP based powder coating of minimum thck ness of 60 microns. (H.T Compartment (Circuit Breaker T2) of each module consist of a vacuum - circuit breaker in cobination with a three position-switch. The three position switch fulfils the operation of the disconnector function and the earthing function. The circuit breaker unit T2 is equipped with an over current -time-release for the protection of distribution transformers. Self powered electronic numerical protection relay providing 3 over current & 1 Earth fault protection. CT protection class 5P10, 2.5 VA,200/1 for incomer & out going -50/1 and CT metering class 0.5, 2.5 VA 600/1 for incomer & out going -50/1& ON, OFF, TRIP mechanism indication on the front mimic of the panel & emergency trip push button) complete all as specified and as directed for the following at GTRE Sub Stn No. 3:-

Gen Tech Data: Rataed Volt - 12 KV Operating Volt - 11 KV, Rated Lighting With Stand Voltage - 75 KV, Rataed lightning with stand Voltage-75 KV, Rated power frequency with stand voltage 28 KV 1 min, rataed frequency- 50 HZ, Rated Peak Current- 50 HZ, Rated short time current- 21 KA , Rated short time-3s, Operation-motorized, Load Break switch - 630 Amp, High Performance VCB 630 A, Disconnecter switch 63 Amp, self powered OC / EF protection relay with suitable protection CTs For X - Fer Rating 200 KVA and above with O/C Setting Ranging 20% to 200% and EF setting 10 % to 80%, Bus bar - 630 AMP, Cable Size for Vacuum Circuit Breaker - upto 300 SQ.MM 3 Core, Protection - (SF6 Gas Tank - IP 67, Outdoor Enclosure - IP 54). Note: All termination of existing cable should be provided with copper lugs / thimbles and suitable size of glands & rate for the same is deemed to be included in the item.

Supply, install & testing Outdoor type HT 12 kV, 630 Amps, 21 KA SF6 Ring Main Unit (9 way) complete with 9 Vaccum Circuit Beakers plus One Bus Metering, rated voltage 12 KV, operating voltage 11 kV, rated lightening withstand voltage 75 kV, 3 phase 50 cycles, rated peak current 50 kA and rated short-time current 21 kA, FBX-C/12-21/M plus T2T2T2 plus T2T2T2 plus T2T2T2 - T2 Motorised. The switching device hve sepsrste drive system which are operated with non interchangeable plug in levers the drive cabinet contains a user frienndly conrol panel with mimc diagram and RMU enclosure and support structure made of CRCA with PP based powder coating of minimum thck ness of 60 microns. (H.T Compartment (Circuit Breaker T2) of Each module consist of a vacuum - circuit breaker in cobination with a three position-switch. The three position switch fulfils the operation of the disconnector function and the earthing function. The circuit breaker unit T2 is equipped with an over current-time-release for the protection of distribution transformers. Self powered electronic numerical protection relay providing 3 over current & 1 earth fault protection. CT protection class 5P10, 2.5 VA, 600/1 for incomer & out going -75/1 and CT metering class 0.5, 2.5 VA 600/1 for incomer & out going -75/1 & ON, OFF, TRIP mechanism indication on the front mimic of the panel & emergency trip push button) complete all as specified and as directed for the following at GTRE Sub Stn No. 3 complete all as specified and directed for the following at GTX Sub Stn No. 3:-

Gen Tech Data: Rataed Volt - 12 KV Operating Volt - 11 KV, Rated Lighting With Stand Voltage-75 KV, Rated lightning with stand Voltage-75 KV, Rated power frequency with stand voltage 28 KV 1 min, rataed frequency- 50 HZ, Rated Peak Current-50 HZ, Rated short time current-21 KA, Rated short time-3s, Operation-motorized, Load Break switch - 630 Amp, High Performance VCB 630 A, Disconnecter switch 63 Amp, self powered OC / EF protection relay with suitable protection CTs For X - Fer Rating 200 KVA and above with O/C Setting Ranging 20% to 200% and EF setting 10 % to 80%, Bus bar - 630 AMP, Cable Size for Vacuum Circuit Breaker - upto 300 SQ.MM 3 Core, Protection - (SF6 Gas Tank - IP 67, Out Door Enclosure - IP 54). Note: (i) All termination of existing cable should be provided with copper lugs / thimbles and suitable size of glands & rate for the same is deemed to be included in the item. Note for item Nos. 37 to 42: (i) All termination of existing cables shall be provided with lugs / thimbles and suitable size of glands and rate for the same is deemed to be included in the quoted rate. (ii) Cutting, drilling & opening of existing wall of masonary / stone building to carry the new panel / equipments to inside the building and make good so as to match with existing surface and rate for the same is deemed to be included in the quoted rate.

M&L for shifting of serviceable HT switch gear as obtained from AVR Sub Stn / GTRE-1 / GTRE - 3 / GTX - 3 / GTX - 4 Sub Station to another Sub station in the GTRE premises including commissioning and testing complete all as specified and directed.

S & F for Earthing complete with galvanized steel earth plate electrode 60 cm x 60cm x 6mm thick buried direcly in ground vertically to a depth not less than 2.25 meters below normal ground level with the top edge of earth plate not less than 1.5 meters below ground level connected to galvanized iron strip 32 x 6 mm by means of bolts, nuts, check nuts and washers made out of galvanised iron or steel all as shown in electrical plate No. 5 of SSR Part-I and earth wire protected by galvanized pipe light grade 40 mm bore and thorugh test point including necessary earth work and excavation in any type of strata, GI light grade 20mm bore watering pipe with funnel and wire mesh, PCC 1:2:4 type B1 chamber with 40mm thick RCC 1:2:4 type B1 design mix cover slab with 6mm kdia MS bars at 100mm c/c both ways with MS Hook 6mm dia MS bars etc complete all as specified and directed and testing on completion.

S & F for Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit / GI pipe or fixed to poles or any other indicated situation for loop earthing etc as required of GI strip 32 x 6 mm complete all as specified and directed.

M&L for dismatling the unserviceable / BER hoist from its position without disturbing / damaging the other system except monorail beam complete and transporting to AGE E/M store yard all as specified and as directed by Engineer-in-Charge.

Design, manufacture, supply, installation, testing and commissioning of the 0.5 Ton (500 Kg) capacity single girder electric operated wire rope hoist of lift 6 mtrs height errected on existing gantry bay length of 36.5 mtrs with pendent operated including electric control panel suitable for hoist complete with electric motor and components with suitable cabling, earth continuity strip and supports etc and electrically operated cross traverse motion to be installed on existing beam / monorail including the following technical specification complete all as specified and directed. Make: TOJYM STEEL PRODUCTS or equivalent. Technical specification (a) Capacity - 500 KG (b) Lft - 6.00 mtr (c) Hoist Speed - 3 mtrs/min, (d) Cross travers speed - 10 Mtrs/Min (e) AC disc breakes of suitable capacity for Hoist & CT motion Make: Disc Break: BCH / PETHE. Note: Contractor shall make visit/inspect the site before quoting the tender

Supply & fixing of Festoom type cable system for the crane / hiost including necessary connection testing complete all as specified and directed.

Design, manufacture, supply, installation, testing and commissioning of the 2 Ton capacity single girder electric operated wire rope hoist of lift 6 mtrs height errected on existing girder bay length of 17 mtrs with pendent operated including electric control panel suitable for hoist complete with electric motor and components with suitable cabling, earth continuity strip and supports etc and electrically operated cross traverse motion to be installed on existing beam / monorail including the following technical specification complete all as specified and directed. Make: TOJYM STEEL PRODUCTS or equivalent. Technical specification (a) Capacity - 2 Ton (b) Lft - 6.00 mtr (c) Hoist Speed - 3 mtrs/min (d) Cross travers speed - 10 Mtrs/Min (e) AC disc breakes of suitable capacity for Hoist & CT motion Make: Disc Break: BCH / PETHE. Note: Contractor shall make visit/inspect the site before quoting the tender

Supply & fixing of Festoom type cable system for the crane / hiost including necessary connection testing complete all as specified and directed.

Design, manufacture, supply, installation, testing and commissioning of the 3 Ton capacity single girder electric operated wire rope hoist of lift 6 mtrs height errected on existing girder bay length of 15.63 mtrs with pendent operated including electric control panel suitable for hoist complete with electric motor and components with suitable cabling, earth continuity strip and supports etc and electrically operated cross traverse motion to be installed on existing beam / monorail including the following technical specification complete all as specified and directed. Make: TOJYM STEEL PRODUCTS or equivalent. Technical specification (a) Capacity - 3 Ton (b) Lft - 6.00 mtr (c) Hoist Speed - 3 mtrs/min (d) Cross travers speed - 10 Mtrs/Min (e) AC disc breakes of suitable capacity for Hoist & CT motion. Make: Disc Break: BCH / PETHE. Note: Contractor shall make visit/inspect the site before quoting the tender

Supply & fixing of Festoom type cable system for the crane / hiost including necessary connection testing complete all as specified and directed.

M/S JIWAN KUMAR MITTAL

United Sales Corporation

Rajan Traders

SAGGI ELECTRIC COMPANY

UNITED TECHNO PROJECTS PVT LTD

Phoenix Infra

C R R CONSTRUCTIONS

Pioneer Enterprises