SPECIAL REPAIRS TO 2 / 4 POLE STRUCTURE INCLUDING CONNECTED WORKS AT CERTAIN LOCATIONS AT AFA HYDERABAD

Dismantling / Taking down of Unserviceable / Outlived 2/4 pole structures from different sub-stations including all accessories such as Cables, GODs, DOs and insulators etc complete all as specified and as directed.

Supply, install, commissioning & testing of Factory Made HT 11 KV, Rated Voltage 12 KV, 630 Amp, 21 KA / 3 Sec, Outdoor type, both sides extensible, Internal Arc 21 KA for 1 sec, Type tested in line with latest IEC Standards, Tank floor mounted with internal copper busbar, SF6 insulated completely motorized 3 way RMU consisting of 2 Nos LBS as outgoing and 01 No 630 Amp VCB as incoming with SCADA compatable, Overload, Earth fault & S/C Protection Relays (ASHIDA/CSPDR) with Air Insulated Metering Module (MFM for VCB feeders) all live parts of busbar, LBS connections of RMU shall be inclusive in one SF6 tank to avoid multiple inter connections. SF6 tank shall be sealed for life robotically welded non magnetic and non ferrite stainless steel grade 304 min 2.5 mm thick having IP-67 degree of protection filled with SF6 gas with nominal operating gas pressure 1.3 Bar 2 20 Deg C & having insulation with leakage rate less than 0.1% per year tested as per IEC 62271200. 01 No fault passage indicator (FPI) required for complete unit. Mannual welding or heremetic ceiling of tank shall not be accepted. The unit shall have front cable entry (suitable for termination of 1 x 3C 95/120/150/185 Sqmm HT 11 KV cable) for ease of installation and shall have site repalceable bushing for ease of troubleshooting during breakdown complete all as specified and as directed.

RMU should be complete with all accessories such as terminal boots, VPIS, cable supports, all front cable terminations, mechanical indications, Load break switch ON/OFF, Manometer as per with IEC standards 62271200, 60056, 60129, 60265, 60298, 60420, 60529 & 60694. Altitude of installation upto 1000 m as per IEC 60120 bushing bolted type top monitored outside the tank for connections of external busbar. Also the outer enclosure must cover the full length of the switchgear, to ensure IP4X + IP-54 protection for cable boxes. The unit shall be internal arc proof 24 KA for 1 sec with AFLR classsification tested and totally safe for human being. The gas release and personel safety from internal arc shall not depend on plinth design. The release of gas to be from the top of the unit, so that even if the person is operating the unit, opening the cover and for personnels near the sides of the RMU/Plinth, top release will ensure their safety complete all as specified and as directed.

The hot gas release in case of an internal arc, in No case should be from any side or bottom of the unit as the same is unsafe for operating personnel/pedestrians or general public. Bidder shall provide necessary type test reports to prove compliance to the internal arc fault IAC-AFLR as per IEC62271-200. Internal arc testing shall be done with enclsolure door in open conditions, with switching devise in operations mode as per specified standard complete all as specified and as directed. Make : BHEL / ABB / SIEMENS / SCHNEIDER.

02 Nos Outgoing 630 Amps Motorised Load Break Switch, Triple Pole Single Break 3 position (ON, OFF and EARTH) having STC capacity 21 KA for 3 seconds with copper busbar and copper earth bar fitted high fixed type voltage indicator device as per IEC 61958-1 fully rated with earth switch, spring assisted mechanism with built in operating handle, arc proof hinged type cable cover air insulated cable boxes and boots suitable for bottom front entry termination of 3 core cable 95/120/185 sqmm complete all as specified and as directed.

01 No Incoming 630 Amps Motorised Vacuum Circuit Breaker, Triple Pole Single Break 3 position (ON, OFF and EARTH) having STC capacity 21 KA for 3 seconds with copper busbar and copper earth bar fitted high fixed type voltage indicator device as per IEC61958-1 fully rated with earth switch spring assisted mechanism with built in operating handle, arc proof hinged type cable cover air insulated cable boxes and boots suitable for bottom front entry termination of 3 core cable 95/120/185 sqmm complete all as specified and as directed.

Bus connected PT Unit - 01 No for metering consisting of the following complete all as specified and as directed :- (i) Type M : Air Insulated Metering Module 12 KV, 630 A 21 KA for 3 sec. (ii) 3 Voltage Transformers of the ratio 11KV/1.732/110V/1.732, 25VA Class 1.0 with HT fuses on HV side and MCBs on LV side. (iii) 03 x Digital MFM with 485 port to measure Amps, Volts, Frequency, PF, KWH, KVAR. (iv) 01 LED bulb for illumination. (v) 01 Space heater with thermostat. (vi) 01 RYB Phase indicator. (vii) 01 Cable support bus bar, stand for 3 Way unit, 1 Manometer & 1 Preraring Handle. (viii) 1 Set bushing for external busbar connection along with bus bar cover & sleeved bus bars for coupling. (ix) 3x12 V Battery with Charger of suitable burden for motor operation, input 230 V AC & output 24 V DC.

Capacitive Voltage Indicator fixed type VPIS 9-15 KV complete all as specified and as directed.

Necessary inter locking arrangement for safety and operation complete all as specified and as directed.

One No Operating handle for manual operation complete all as specified and as directed.

PCC 1:2:4 type B1 using 20mm graded stone aggregate for foundation and bus-duct of cable for RMU all as per the recommendations of OEM complete all as specified and as directed.

Safety interlocks shall be provided as per relevant IEC/IS standard and manufactures directions complete all as specified and as directed.

Above switchgears shall confirm to all relavant IEC/IS standard complete all as specified and as directed.

Manual operation of Vacuum Circuit Breaker should be possible without dismantling the motor from RMU. The motor should be fitted in such a way that it should not be required to dismantle during mannual operation complete all as specified and as directed.

Coupling of RMU and metering module should be with the help of bolted type arrangement so that the coupling at site shall be easy. Plug in type bushing shall not be acceptable complete all as specified and as directed.

Minimum 3 Module should be accommodated in one tank to avoid multiple coupling at site complete all as specified and as directed.

Having following additional facilities complete all as specified and as directed :- (i) Trip circuit supervision. (ii) Disturbance recorder. (iii) Event log with date and time. (iv) Measurment and control features.

Current Transformers (CTs) of dual ratio 100/50-1A of 15 VA Output, Accuracy Class 1.0 for Metering and 5P10 for 15 VA Accuracy for Over-Current and Earth Fault Protection - 03 x Sets of 03.

Supply, install, commissioning & testing of Factory Made HT 11 KV, Rated Voltage 12 KV, 630 Amp, 21 KA / 3 Sec, Outdoor type, both sides extensible, Internal Arc 21 KA for 1 sec, Type tested in line with latest IEC Standards, Tank floor mounted with internal copper busbar, SF6 insulated completely motorized 4 way RMU consisting of 3 Nos LBS as outgoing and 01 No 630 Amp VCB as incoming with SCADA compatable, Overload, Earth fault & S/C Protection Relays (ASHIDA/CSPDR) with Air Insulated Metering Module (MFM for VCB feeders) all live parts of busbar, LBS connections of RMU shall be inclusive in one SF6 tank to avoid multiple inter connections. SF6 tank shall be sealed for life robotically welded non magnetic and non ferrite stainless steel grade 304 min 2.5 mm thick having IP-67 degree of protection filled with SF6 gas with nominal operating gas pressure 1.3 Bar 2 20 Deg C & having insulation with leakage rate less than 0.1% per year tested as per IEC 62271200. 01 No fault passage indicator (FPI) required for complete unit. Mannual welding or heremetic ceiling of tank shall not be accepted. The unit shall have front cable entry (suitable for termination of 1 x 3C 95/120/150/185 Sqmm HT 11 KV cable ) for ease of installation and shall have site repalceable bushing for ease of troubleshooting during breakdown complete all as specified and as directed.

RMU should be complete with all accessories such as terminal boots, VPIS, cable supports, all front cable terminations, mechanical indications, Load break switch ON/OFF, Manometer as per with IEC standards 62271200, 60056, 60129, 60265, 60298, 60420, 60529 & 60694. Altitude of installation upto 1000 m as per IEC 60120 bushing bolted type top monitored outside the tank for connections of external busbar. Also the outer enclosure must cover the full length of the switchgear, to ensure IP4X + IP-54 protection for cable boxes. The unit shall be internal arc proof 24 KA for 1 sec with AFLR classsification tested and totally safe for human being. The gas release and personel safety from internal arc shall not depend on plinth design. The release of gas to be from the top of the unit, so that even if the person is operating the unit, opening the cover and for personnels near the sides of the RMU/Plinth, top release will ensure their safety complete all as specified and as directed.

The hot gas release in case of an internal arc, in No case should be from any side or bottom of the unit as the same is unsafe for operating personnel/pedestrians or general public. Bidder shall provide necessary type test reports to prove compliance to the internal arc fault IAC-AFLR as per IEC62271-200. Internal arc testing shall be done with enclsolure door in open conditions, with switching devise in operations mode as per specified standard complete all as specified and as directed. Make : BHEL/ABB / SIEMENS / SCHNEIDER.

03 Nos Outgoing 630 Amps Motorised Load Break Switch, Triple Pole Single Break 3 position (ON, OFF and EARTH) having STC capacity 21 KA for 3 seconds with copper busbar and copper earth bar fitted high fixed type voltage indicator device as per IEC 61958-1 fully rated with earth switch, spring assisted mechanism with built in operating handle, arc proof hinged type cable cover air insulated cable boxes and boots suitable for bottom front entry termination of 3 core cable 95/120/185 sqmm complete all as specified and as directed.

01 No Incoming 630 Amps Motorised Vacuum Circuit Breaker, Triple Pole Single Break 3 position (ON, OFF and EARTH) having STC capacity 21 KA for 3 seconds with copper busbar and copper earth bar fitted high fixed type voltage indicator device as per IEC61958-1 fully rated with earth switch spring assisted mechanism with built in operating handle, arc proof hinged type cable cover air insulated cable boxes and boots suitable for bottom front entry termination of 3 core cable 95/120/185 sqmm complete all as specified and as directed.

Bus connected PT Unit - 01 No for metering consisting of the following complete all as specified and as directed :- (i) Type M : Air Insulated Metering Module 12 KV, 630 A 21 KA for 3 sec. (ii) 3 Voltage Transformers of the ratio 11KV/1.732/110V/1.732, 25VA Class 1.0 with HT fuses on HV side and MCBs on LV side. (iii) 04 x Digital MFM with 485 port to measure Amps, Volts, Frequency, PF, KWH, KVAR. (iv) 01 LED bulb for illumination. (v) 01 Space heater with thermostat. (vi) 01 RYB Phase indicator. (vii) 01 Cable support bus bar, stand for 3 Way unit, 1 Manometer & 1 Preraring Handle. (viii) 1 Set bushing for external busbar connection along with bus bar cover & sleeved bus bars for coupling. (ix) 4x12 V Battery with Charger of suitable burden for motor operation, input 230 V AC & output 24 V DC.

Capacitive Voltage Indicator fixed type VPIS 9-15 KV complete all as specified and as directed.

Necessary inter locking arrangement for safety and operation complete all as specified and as directed.

One No Operating handle for manual operation complete all as specified and as directed.

PCC 1:2:4 type B1 using 20mm graded stone aggregate for foundation and bus-duct of cable for RMU all as per the recommendations of OEM complete all as specified and as directed.

Safety interlocks shall be provided as per relevant IEC/IS standard and manufactures directions complete all as specified and as directed.

Above switchgears shall confirm to all relavant IEC/IS standard complete all as specified and as directed.

Manual operation of Vacuum Circuit Breaker should be possible without dismantling the motor from RMU. The motor should be fitted in such a way that it should not be required to dismantle during mannual operation complete all as specified and as directed.

Coupling of RMU and metering module should be with the help of bolted type arrangement so that the coupling at site shall be easy. Plug in type bushing shall not be acceptable complete all as specified and as directed.

Minimum 3 Module should be accommodated in one tank to avoid multiple coupling at site complete all as specified and as directed.

Having following additional facilities complete all as specified and as directed :- (i) Trip circuit supervision. (ii) Disturbance recorder. (iii) Event log with date and time. (iv) Measurment and control features.

Current Transformers (CTs) of dual ratio 100/50-1A of 15 VA Output, Accuracy Class 1.0 for Metering and 5P10 for 15 VA Accuracy for Over-Current and Earth Fault Protection - 04 x Sets of 03.

VACUUM CIRCUIT BREAKER : 12 kV, 3Phase, 50 Hz, 400A, 25kA / 3 Sec, Horizontal Draw out and Horizontal isolation fitted with Manual as well as Motor operated spring charging mechanism, with 230V AC Motor, Shunt trip coil of 110V DC, Closing coil of 110V DC, Aux Contact 6NO+6NC, Mechanical ON/OFF indicator, Mechanical operation counter, Automatic safety shutter and Push buttons etc complete all as specified and as directed. Make : BHEL / ABB / SIEMENS / SCHNEIDER.

ENCLOSURE : CRCA Sheet Steel Enclosure suitable for Indoor Protection - IP:4X

TREMINATION : Incoming : Bottom Cable Entry Outgoing : Bottom Cable Entry Shade No/Ref : Simens Grey RAL 7032

BUS CONNECTION : COPPER BUS BAR 400A Main Bus : (1R X 50 X 12 mm ) Cu.Bus bar with Heat shrinkable sleeves insulation. Earth Bus : (1R X 20 X 6 mm) Cu. Bus bar with Heat shrinkable sleeves insulation.

CURRENT TRANSFORMER : 11 KV Epoxy Resin Cast CT, Single Phase CTR : 100-50/1-1A - 03 Nos of make KALPA/ECS/ETE. Core 1 : Class 0.5, Burden : 15VA (For Metering) Core 2 : Class 5P10, Burden : 15VA (For Protection) Type : Wound Primary, ILV : 12/28/75 kVp, STC : 18.4KA /1 Sec

POTENTIAL TRANSFORMER : 11kV, Epoxy Resin cast single phase PT with HT Fuses - 03 Nos of make KALPA/ECS/ETE. PTR : 11KV/RT3/110V/RT3 Core : Class 0.5, Burden : 100VA Voltage Factor : 1.2 Cont. / 1.5 for 30 sec, ILV : 12/28/75 kVp

PROTECTION RELAY Numerical type 3 O/C + 1 E/F Relay without RS 485 port of Make : SCHNEIDER or techno-commercially equivalent of ABB/SIEMENS. Type : Micom P111 L, Aux. supply : 110 V DC, In=5A or 1A

MASTER TRIP RELAY : Type : CLR H -3 , Aux. supply : 110V DC, 3NO+1NC of make C&S or techno-commercially equivalent of ABB/SIEMENS.

TRANSFORMER AUXILIARY RELAY : Type : CAR H-2-3-3, Aux Supply : 110V DC, 3 Element - 02 Nos of Make C&S or techno-commercially equivalent of ABB/SIEMENS.

METERING (a) Multifunction Meter EM6400NG with RS 485 comm CL : 1.0 of make C&S or techno-commercially equivalent of ABB/SIEMENS. (b) 8 Window Annunciator of reputed make. (c) Hooter of reputed make.

INDICATION LAMPS (a) 22.5 dia Red colour LED Indication Lamp - 110V DC (VCB ON) of reputed make. (b) 22.5 dia Green colour LED Indication Lamp - 110V DC (VCB OFF) of reputed make. (c) 22.5 dia Amber colour LED Indication Lamp - 110V DC (VCB TRIP) of reputed make. (d) 22.5 dia White colour LED Indication Lamp - 110V DC (TCH) of reputed make. (e) 22.5 dia Blue colour LED Indication Lamp - 110V DC (SPRING CHARGED) of reputed make. (f) 22.5 dia Red colour LED Indication Lamp - 63.5V AC (R PHASE) of reputed make. (g) 22.5 dia Yellow colour LED Indication Lamp - 63.5V AC (Y PHASE) of reputed make. (h) 22.5 dia Blue colour LED Indication Lamp - 63.5V AC (B PHASE) of reputed make.

CONTROL SWITCHES (a) T-N-C Switch Breaker Control Switch Spring return type with Sequence lock of make GT or techno-commercially equivalent. (b) Local/Remote Switch 2 position 2 in local 2 in remote of make GT or techno-commercially equivalent. (c) Toggle ON/OFF Switch for Space Heater, 10A, 230V AC of make KAYCEE or techno-commercially equivalent. (d) Door Limit Switch for LED 1NO+1NC, 230V AC of make KAYCEE or techno-commercially equivalent. (e) Push Button with 2 No Contacts (White) of make SCHNEIDER or techno-commercially equivalent.

MINIATURE CIRCUIT BREAKER (a) 4P, 2A, AC MCB of make SCHNEIDER or techno-commercially equivalent. (b) 2P, 10A, DC MCB of make SCHNEIDER or techno-commercially equivalent. (c) 2P, 10A, AC MCB of make SCHNEIDER or techno-commercially equivalent.

COMMON FOR SWITCH GEAR (a) Space heater of reputed make. (b) Thermostat of reputed make. (c) Cubicle Illumination lamp with holder of reputed make. (d) 3 pin plug & socket with ON/OFF switch of reputed make. (e) Anti Pumping, Contactor 110V DC, 2NO+2NC of make SCHNEIDER or techno-commercially equivalent. (f) Power Pack, Input : 230V AC, Output : 24V DC of suitable capacity & of reputed make. (g) 11 KV Surge Arrester (9 KV,10 KA) - 03 Nos of make RAYCHEM RPG or techno-commercially equivalent.

M&L for laying earth continuity conductor or main earthing lead of 20x3 mm copper strip, fixed to wall on batten or recess or chasses or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc, as required all as directed and specified.

M&L for GI pipe light grade with all running fittings (ISI Marked), laid in trenches, under road or fixing on wall/pole/crossing drain/nallah etc. of bore 100 mm complete all as specified and directed. Make : TATA/JINDAL/PRAKASH.

Supply and laying UG XLPE cable insulated screened PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminum conductors, 11000 Volts (E) grade, of cross section 185 Sqmm 3 Core including testing complete all as specified and as directed. MAKE : HAVELLS/POLYCAB/FINOLEX/KEI. Note :- Earth work, cable protection cover, sand etc shall be measured and paid separately.

Returning, filling in including spreading, levelling, watering and well ramming in layers n.exc 25cm thick complete all as specified and as directed.

Removing of excavated material n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point complete all as specified and as directed.

M&L for providing sand cushioning for protection of UG cable in trenches with dry (coarse) river sand approved quality including filling, spreading and punning down to desired thickness complete all as specified and as directed.

Supply and laying un-reinforced precast concrete cable cover, class HVP, Type 1, flat, size 300 x 180 x 40 mm in trenches for protection of UG Cable with width equal to length of PCC cover, laid dry & flat complete all as specified and as directed.

Supply & Laying Synthetic Rubber Insulated Mats 2.5 mm thick for Voltage upto 11 KV of size 2.0 x 1.0 Mtr for electrical purpose as per IS 15652:2006 suitable for electrical shock safety complete all as specified and as directed.

M&L for dismantling of defective 11 KV VCB, 400/630/800 Amps, Indoor/Outdoor VCB panel (Make: SCHNEIDER/CROMPTON/SIEMENS etc) & carrying out Servicing, Repairing / Replacement (as directed) of the unserviceable items such as Closing / Tripping Coil Assembly, Spring Charging Motor and Gear Assembly, Master Trip Telays, Supervision Trip Relays, Over-Current Relays, Overhauling and including rectification of the electrical & mechanical faults by the Service Engineer / Authorised Personnel of the OEM / Auth Channel Partner after necessary cleaning and providing Silicon Grease to all the moving parts, also including adjustment of all Springs /Relays etc, Commissioning of the 11 KV VCB Panel CTs, PTs, Relays, VCB testing including CRM, Timer, IR Testing in VCB and Ratio Primary, IR, Winding Resistance, Polarity Testing in CT and PT and Secondary Current Injection with 03 settings & Tripping Test with timing in Relays and applying control voltage & testing all Scheme Logic with ON/OFF/TRIP Operations, also checking Metering and Protection and Annunciation with indication kit, making the VCB Panel and Testing of CT Ratio, Polarity Test and connection of CT100-50/5 +5A by Primary Injection complete and Calibration of IDMT Relays, Over-current, Earth Fault and Under-voltage Relays complete and Preparation of surface of VCB Panel Board cubical in shape and applying one coat of SFRC paint thereby ensuring 100% serviceability complete all as specified and as directed.

Supply only Digital Ampere Meter (Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Digital Volt Meter ( Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Over-current Relay and Earth Fault Relay ( Make Schneider, Type Micom P111 / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Master Trip Relay ( Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Supervision Trip Relay / Trip Circuit Healthy Relay ( Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only 11 KV, Epoxy Resin Cast Single Phase PT with HT Fuses - 03 Nos of make as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge, PTR : 11KV/RT3/110V/RT3, Core : Class 0.5, Burden : 100VA, Voltage Factor : 1.2 Cont. / 1.5 for 30 sec, ILV : 12/28/75 kVp perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Single Phase PT Fuse ( Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Space Heater alongwith Thermostat 230V, AC 100W ( Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Multi Voltage Type Indicator Lamp perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Tripping Coil (Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Closing Coil (Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Spring Charging Gear Motor (Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only 11 KV Epoxy Resin Cast CT, Single Phase CTR : 100-50/1-1A - 03 Nos of make as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge, Core 1 : Class 0.5, Burden : 15VA (For Metering), Core 2 : Class 5P10, Burden : 15VA (For Protection), Type : Wound Primary, ILV : 12/28/75 kVp, STC : 18.4KA /1 Sec perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Spout/Post Insulator (Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

Supply only Vacuum Interrupter (Make/Specifications as per Existing / as per OEM Recommendations all as directed by the Engr-in-Charge) perfectly suitable for the existing 11KV 400/630/800 A VCB Panel complete all as specified and as directed.

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