AMC of 66/11 KV Sub Station

Annual maintenance and repair of 66/11 KV electrical sub station having the following:- 66/11 KV , 6.3/8 MVA three phase power transformer (2 nos), 72.5 KV 31.5 KA 1600 Amp SF6 ckt breaker (3 nos), 72.5 KV 31.5 KA 1250 Amp isolators without earthswitch (6 nos), 72.5 KV 31.5 KA 1250 Amp isolators with earthswitch (1 nos), 60 KV ZnO surge arresters (gapless) (9 nos), Instrument transformers : 72.5 KV 31.5 KA CTs of ratio 300-150/1-1 accuracy class 0.2,0.2 ,burden 20VA,20VA( 3 nos), 72.5 KV 31.5KA CTs of ratio 150-75/1-1-1-1 of accuracy class 0.2, PS,PS,PS, burden 20VA, 20VA,20VA,20 VA (6 nos), 72.5 KV PTs of ratio 66KV√3, 110V/√3,110V/√3 of accuracy class 0.2,0.2 burden 50VA, 50VA (3 nos), 72.5 KV PTs of ratio 66KV/√3,110V/√3, 110V/√3 of accuracy class 0.2-3P,0.2-3P, burden 50VA,50VA (6 nos), Power cables (Aluminium,armoured): 11KV (earthed) XLPE 3C X 185 Sq mm (600 mtr), 11KV (earthed) XLPE 3C X 35 Sq mm(75 mtr), 1.1 KV XLPE 3.5C X 70 Sq mm (150 mtr), 1.1 KV XLPE 3.5C X 25 Sq mm (100 mtr), 1.1 KV XLPE 4 X 6 Sq mm (800 mtr), 1.1 KV XLPE 1 X 10 Sq mm (50 mtr), FRLS Control cables (copper,armoured): 12C X 4 Sq mm (1000 mtr), 10 C X 2.5 Sq mm (400 mtr), 4C X 4 Sq mm (1500 mtr), 4C X 2.5 Sq mm (500 mtr), 12 KV 12 Panel VCB switch board (1 set), 220V 100Ah battery (1 set), 10A/20A battery charger for 220V,100Ah battery. (1 set), 11/0.4,63 KVA dry type station transformer (1 set), 25KVA, 3 Phase DG set with sound proof enclosure (1 set), LT Switchgear: 415V ACDB (1 set), 200V DCDB (1 set), 72.5 KV Control & Relay panel: Incoming line panel (1 nos), Transformer panel (2 Nos), Switchyard erection material like conductor, earth electrode, earth mesh of complete switch yard and earthing connection to all equipments, lightning protection of switchyard (earth wire screen) disc insulators, hardware fitting, connectors, fire fighting system of transformers. Gantry towers and beams for switchyard and equipment and support structure for all equipments: Bay marshalling kiosks (3 nos), including deputing trained person during working hours six days a week.

Consumables parts (from Sl. No. 3 to 63) etc to be used during AMC on Need basis

Bus bar Aluminium (60x10mm)

New CT 400/5A/1A

Epoxy (Spot) Insulators (CG Make 11 KV)

Spots (CG Make 11 KV)

Bus bar cross bushing for CG Make 11 KV panel

Fiber Sheets for CG Make 11 KV panel

New repair of Pin / Male contacts- (CG Make 11 KV)

Transformer oil

New Repair of Jaws /Tulip contacts- (CG Make 11 KV)

Vaccuum bottle reconditioning - (CG Make 11 KV)

Vaccuum bottle new (CG Make 11 KV)

Monoblock insulation with varnish for CG Make 11 KV panel

Painting of existing cabinet and removal of rust and moisture for CG Make 11 KV panel

Repair of spring charging motor for CG Make 11 KV VCB.

HT Cable sleeve set.

HT Insulator for bus bar mounting in 11KV VCB. Make : CG or eq.

Indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for 185 Sq. mm, 3 core, XLPE aluminium conductor cable of 11 KV grade. Make : CG/Raychem RPG/3M.

Epoxy insulator (phase to phase separator for 11KV HT VCB feeder).Make : CG or eq.

Monoblock for fix contact (panel side) in 11KV HT Panel.Make : CG or eq.

Oil monitoring gauge for power transformer 6.3/8MVA.

Mounting channel for mounting insulators in 11KV VCB.Make : CG or eq.

Digital Active power meter in MW unit, MF for CTR 150/1A = 2. Make : AE or eq.

Digital Reactive power meter in Mvar unit, MF for CTR 300/1A = 2. Make : AE or eq.

Digital Reactive power meter in Mvar unit, MF for CTR 150/1A = 2. Make : AE or eq.

P/f duco/ automotive/ hammerstone paint on electrical HT power panel including filling, surface preparation, etc.

Power pack battery,12V-7Ah,SMF Type.Make : Amaron/Exide/Rocket.

11 KV HT VCB Adapter assembly

Push button,green, black, red colour

HT VCB Stopper rubber bush

HT/LT Panel door lock

Indicator (Red,Yellow,Green, blue, white)

Power Pack for 11 KV panel

Dehydration of transformer of capacity 6.3/8 MVA

Power pack battery,12V-7Ah,SMF Type.Make : Amaron/Exide/Rocket.

Silica gel

PT for 11KV VCB panel, ratio 11000/110/110,VA/CLASS LV I 100/0.5,LV II 100/3P,YYY connection, 50 HZ. Make : Crompton Greaves

Breather assembly 1 kg

Breather assembly 5 kg

VMR 3 phase relay. Make : Proton or eq., Model : PR-07

Contactor.Make : ABB, Model : UA-30-30-10RA

Ampere meter (Analog type). Make : AE or eq.

Providing and fixing 25mm X 5mm GI strip on surface or in recess for connections etc as required.

VCB Interrupter bottle of 11KV HT Breaker including its housing, dismantling, fitting.

PT set including male female insulators for 11 KV VCB incl. fitting.

Overcurrent earth fault relay, Aux 18-52 VDC, CT 1A/5A.Make : Crompton Greaves (CGI14N model)

HT panel space heater complete with thermostat, holder etc.

Power pack with battery backup, Input 230V AC, Output 24V DC, 4A. Make : Alan, model: APP-230024 or eq.

Spring charging motor

TNC Switch

PT fuse with holder

OC/EF Protection relay, 6"X6". Make : Ashida, model : ADR 141A

11KV VCB PT Set

Tripping coil 24V

Analog Ampere meter 600/5A

11 KV VCB CT for 200/100/5Amp

Rack in mechanism for 11 KV VCB of CG make, code : 1SYPTP22043.

Digital ammeter

Main mechanism for 11 KV VCB of CG make, code : 1TPASB22443

SF6 gas cylinder for 66 KV Breaker. Capacity 9 Kgs

CT set for 11 KV VCB. Make CG, Code 200-102319

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