PROVISION OF HT CONNECTION AT IBLUR AND PROVN OF ELECTRIC CONNECTION FOR 240 KW FAST CHARGER OF EV BUSES OF MT COY, ASC CENTRE UNDER GE (CENTRAL) BANGALORE

M & L for Measuring Equipements HT-ETV (electronic trivector) meter 0.2 accuracy class with ABT feature and DLMS (device language message specification) protocol with TOD with RS 232 Port and 11 KV HT measuring cubical of different CT Ratio both side cable entry type, 3 CT and 3 PT with transparent cover TTB (test terminal block) with 30x8mm Copper Bus bar for 3Phase 4 wire metering without load break switch HT metering box, fabricated out of 3.15mm MS Sheet duly epoxy powder coated as per revised specification all as per Dwg No. BESOM/GM/QS&S/--Dtd 24.01.2018 and as per BESCOM recommndation including necessary PCC foundation etc., complete all as Specified & as directed

Supply, install, testing & commissioning of outdoor type, welded stainless steel tank with IP-67 protection for SF-6 Tank and IP 54 protection for outdoor enclosure, both Side extensible type compact RMUs (VCB, SF6 Type) with Aluminium busbar4 way, one incomer Two breaker one outgoing (2OD+2VL) 350 MVA, 650 Amp, 21KA (VCB SF6 enclosed) as per IEC-62271, Aluminium Bus Bar consisting SF6 insulated motorized VCB of 11KV, 630Amp with overload and earth fault protection, capacitive voltage indication, Manometer, cable boots for VCB and castle key interlocked including necessary PCC foundation work with MS channel and MS angle frame as per manufacturer recommendation along with bottom cable entry and front cable termination suitable upto single run 3core 400sqmm HT cable with following specifications complete all as specified and as directed :- (i) A01 as incoming VCB & Outgoing VCB with 2 Nos OD braker three position isolator /earthing switch, bus bars, interlocking earth bars and stored spring energy mechanism. (ii) Stored energy mechanism for manual operation - 01 No. (iii) Set of 03 No’s Ring core protection CTs of suitable ratio as per feeder load, 1.0 VA, Class 0.1- 01 set in breaker. (Transformer rating 30.8MVA) Capacitive voltage indication fixed type VPIS 9- 15KV - 01 No in breaker

(iv) Control voltage motor 24 DC-01 Nos each Breaker (v) Self powered OC+EF Protection relay type as per manufacturer recommendation with rechargeable - 01 No in each breaker (vi) Impluse withstand voltage: To earth and between phases: 75KV Insulation level: -Power frequency 1 min:28 Kv (vii) Master trip relay-01Nos each breaker (viii) Space heater (230VAC)- 01 Nos each breaker. (ix) One No Potential Transformer (PT) three phase, dry type (resin cast) fixed type 11 KV/110 VOLTS, 25 VA burden, accuracy class 1.0 (x) Multi function meter for each breaker. (xi) Under/over Voltage Relay each breaker. (xii) Enclosure : CRCA sheet powder coated with Siemens grey shade IS 632 Front Cover: 3.15mm thick CRCA sheet powder coated with Siemens grey shade RAL 7035 Cable Cover: 3.15mm thick CRCA sheet powder coated with Siemens grey shade RAL 7035 (xiii) Cable bushings interface C (400 bolted) , 630A (xiv) Bushings outside cone interface C for connection of external busbars 2x12V DC battery + charger scheme R-Y-B phase indication. Additional equipment delivered separately or mounted in respective panel. Set of coupling bus bars along with suitable coupling kit - 01No, Operating Handle - 01 No as per BESCOM recommndation Complete.

Supply, install, testing & commissioning of outdoor type, welded stainless steel tank with IP-67 protection for SF-6 Tank and IP 54 protection for outdoor enclosure,both Side extensible type Compact RMUs (VCB, SF6Type) with Aluminium Busbar 3 way one incomer One breaker one outgoing (2OD+1VL) 350 MVA, 650 Amp, 21KA (VCB SF6 enclosed) as per IEC-62271, Aluminium Bus Bar consisting SF6 insulated Motorized VCB of 11KV, 630Amp with overload and earth fault protection, capacitive voltage indication, Manometer, cable boots for VCB and castle key interlocked including necessary PCC foundation work with MS channel and MS angle as per manufacturer recommend along with bottom cable entry and front cable termination suitable upto single run 3core 400sqmm HT cable with following specifications complete all as specified and as directed. (i) A01 as incoming VCB with 2 Nos OD braker three position isolator /earthing switch, bus bars, interlocking earth bars and stored spring energy mechanism. (ii) Stored energy mechanism for manual operation - 01 No. (iii) Set of 03 No’s Ring core protection CTs of suitable ratio as per feeder load, 1.0 VA, Class 0.1- 01 set in breaker. (Transformer rating 30.8MVA) Capacitive voltage indication fixed type VPIS 9- 15KV - 01 No in breaker

(iv) Control voltage motor 24 DC-01 Nos each Breaker (v) Self powered OC+EF Protection relay type as per manufacturer recommended with rechargeable - 01 No in each breaker(xi) Impluse withstand voltage: To earth and between phases: 75KV Insulation level: -Power frequency 1 min:28 Kv (vi) Master trip relay-01Nos each breaker (vii) Space heater (230VAC)- 01 Nos each breaker. (viii) One No Potential Transformer (PT) three phase, dry type (resin cast) fixed type 11 KV/110 VOLTS, 25 VA burden, accuracy class 1.0 (ix) Multi function meter for each breaker. (x) Under/over Voltage Relay each breaker. (xi) Impluse withstand voltage: To earth and between phases: 75KV Insulation level: -Power frequency 1 min:28 Kv (xii) Enclosure: 3.15mm thick CRCA sheet powder coated with Siemens grey shade IS 632 Front Cover: 3.15mm thick CRCA sheet powder coated with Siemens grey shade RAL 7035 Cable Cover: 3.15mm thick CRCA sheet powder coated with Siemens grey shade RAL 7035 (xiii) Cable bushings interface C (400 bolted) , 630A (xiv) Bushings outside cone interface C for connection of external busbars 2x12V DC battery + charger scheme R-Y-B phase indication. Additional equipment delivered separately or mounted in respective panel. Set of coupling bus bars along with suitable coupling kit - 01No, Operating Handle - 01 No as per BESCOM recommndation Complete.

S&F of GPRS Modem with All accessories as per BESCOM recommndation Complete all as specified & directed.

Supply, & installation, testing and commissioning out door type, floor mounted step down transformer, 11KV/ 433 Volts ( At no load) AC 3 phase, 50 Hz, energy efficient level - 3, Amendment No.04, 2021,confirming to IS 1180- 2014, BEE Approved, capacity 160 KVA , oil immersed, naturally cooled, oil natural- air -natural (ONAN), Class A insulation with external cooling tubes, delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector group Dyn- 11 with natural brought out on secondary side (LV) and having tappings at +/- 2.5% to +/- 7.5% , 7positions, on HV side to be changed by means of hand operated off load tap changer gear. The maximum temprature rise should not exceed 35 degree C in oil and 40 degree C in HV /LV windings when measured by resistance method after countinuous full load run on an ambient temp of 50 degree C and shall also comprise of the following all as specified & directed :- (a) 01 cable box chamber on HV side( primary) consisting of 03 Nos porcelain / epoxy bushing with copper rods complete with nuts and washers, with 01 No cable gland suitable for existing cable. (b) 01 box on LV side( secondary) consisting of 04 Nos epoxy bushing with copper rods complete with nuts and washers with cable glands.

(c) Oil conservator tank with filter type drain plug and oil level gauge. (d) Dehydrating breather with first fill of silica gel. (e) Explosive vent, thermometer pocket on tank cover, oil level guage, oil drain filter valve, lifting hooks, oil filling hole with cap / plug with connection plate complete. Air release valve plug at four Nos plate soil cast steel detachable rollers. (f) 01 No 100 mm dia, dial type thermometer, vapour pressure type, having range 0-120 degree C with metal guard having maximum perimeter temperatre reading indicator with resetting device. (g) 02 Nos earthing terminals on tank cover to facilitate fixing of 50 x 6 mm GI earth strip for earthing of body. Rating plate and terminal marking plate. (j) The transformer shall be erected complete with standard fittings on PCC platform for transformer of size 2X2X2 mtrs including necessary M S channel, angles with nut bolt washer with necessary painting etc complete all as specified. and directed.

(h) Extra bushing for natural, in the LT cable box for providing independent set of earthing for natural. (j) First fill of new transformer oil, IS- 335 marked filtered and tested up to 60 KV die electric strength at 2.5 mm air gap between testing electrodes. (k) Providing adequate size and Numbers of channels, embedded in floor, for movement of transformers. (m) Provn for transformer fixing on trolley arrangement system (openable).

Supply and spread stone metal graded aggregate of size 40 mm at transformer yard complete all as directed.