Repair and maintenance to HT switch gear at Kabul Line Sub Station New MAP Sub Station Old MAP Sub Station Baird place Sub Station and associated area of AGE U Elect Supply No I under GE U Electric Supply Delhi Cantt 10

Amount

Material and labour for servicing /testing of breaker/control panel including CT, PT and relays in control panel of VCB of capacity 2000 /800/630 Amps and rating 11 KV complete as details mentioned as under:- (a) Details of servicing of breaker :- (i) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vacuum interrupter and insulating materials shall be wiped with a clean cloth. (iii) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section, etc.use grease for the operating shaft and bearings, and machine oil for other parts. (iv) Check for rust and wear. (v) Check Spring Tension and pitting of the Cluster Contacts. (vi) Visual check for rust and deformation. (vii) Check for loosened bolts and nuts, broken spring washers and snap pins etc. (viii) Check for loosened connections, rust, damaged lead wires. (ix) Check whether the contacts are damaged by arcing. (x) Checking of control circuit & tighten the connections if any. (xi) Check close & trip coil. (xii) Checking of Jaw Contacts Conditions and repair/adjust. (xiii) Replace the jaw contacts,If required.

(xiv) Improvement of resistance of epoxy insulator and epoxy body by applying post heated varnish. (xv) Replacement of Dashpot/shock absorbers . (xvi) Replacement of carbon brush of spring charging motor (b) The following test shall be carried out:- (i) Primary Injection Test of CT / PT (ii) Closing & Opening Timing Test for all three poles. (iii) IR Test with megger in open and closed condition. (c) Testing of following relays of control panel with Secondary Injection Kit ,checking and programming of relay : -(i) Over current and earth fault relay (d) Testing of followig Aux relay (i) DC Supply supervision relay. (ii) Master trip relay

Supplying, installation, commissioning and testing in replacement of 11 KV Current Transformer (CT`s), indoor type, resin cast epoxy type, of 13.1 KA/Sec having ratio 400/200/5-5 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering including associated wiring complete all as specified and directed

All as per item No 2 here-in-before but having ratio 200/100/5-5

All as per item No 2 here-in-before but having ratio 150/75/5-5

All as per item No 2 here-in-before but having ratio 100/50/5-5

All as per item No 2 here-in-before but having ratio 60/30/5-5

All as per item No 2 here-in-before but having ratio 50/25/5-5

Supplying and fixing in replacement Potential Transformers, Fix type in existing HV panel for easy maintenance, 11kV/rt3:110V/rt3, 50VA, Cl.0.5 with associated gun-type HRC fuses and MCBs for HT/LT isolation

Supplying, installation, commissioning and testing in replacement of PT unit three phase, three limbs, upto 11 KV draw-out type, resin cast dry type, single ratio having primary voltage 11 KV & secondary voltage 110 volts, 50 VA class-1 including necessary bus bar connections & wiring for metering complete all as specified and directed .

S&F in replacement of LED indication lamp 24/110 Volts for breaker ON/OFF/TRIP/Breaker Spring Charged/R-Y-B etc for 11 KV control panel including associated wiring, if reqd, complete all as specified and directed.

Supply and installation in replacement Anti-condensation space-heater withThermostatic control in cable and circuit breaker compartments of HT switchgears complete all as specified and directed.

S&F in replacement of vacuum interrupter suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of isolating contact assembly suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of fixed contact block complete suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of moving contact block complete suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of motor & gear assembly 230V AC suitable for 400/630/800 amps, 11 KV HT VCB including testing & puting on load complete all as specified & directed.

S&F in replacement of spring bearing gear suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of closing coil assembly 24 volts DC suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement of tripping coil assembly 24 volts DC suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

Supply and fix in replacement close/trip coil 24V DC for 11 KV HT VCB of capacity 400/630/800 Amps capacity all as specified and directed.

S&F in replacement of panel door lock suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement auxillary switch (7 No + 7NC) suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

Supply and fix in replacement T&C Switch for Breaker ON/OFF purpose in HT 11 KV VCB panel including associated wiring, if reqd, for proper functioning of switch complete all as specified and directed.

Supplying & Fixing in replacement support road with screws suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement support insulator suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement upper connector suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

Supplying & Fixing in replacement lower connector suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

Supply & fix in replacement only set of 6 Nos fixed arcing contacts suitable for 400/630/800 amps, 11 KV HT VCB complete all as specified and directed

S&F in replacement Caution plate “CAUTION MEN AT WORK of size 40cmx15cm made out of white acrylic sheet with Red coloured glow tape.

S&F in replacement of HRC fuse of capacity 20 Amps for VCB complete all as specified and directed

S&F in replacement MCB 20 to 32 Amps DP

S&F in replacement of Digital Volt meter Secondary voltage 110 V for 11 KV VCB Control Panel.

Supply, installation and testing of Numerical Relay in replacement draw out type in HT 11 KV VCB Panel comprising of new and modern numerical scheme for detecting, indicating and tripping the breaker on faults over-current and earth-fault in any of the three phases, Trip circuit supervision relay, 5% pick up for OC and 5% for EF. The relay shall also have the following features as minimum; (i) Programmable rated current 1A & 5A, (ii) Last 8 fault record & 200 event record with time stamping, (iii) 4 analog input, 8 DI & 8 DO, (iv) Communicable on IEC61850 protocol, (v) Disturbance recording upto 300 cycles, (vi) Self supervision function. The relay shall be fully integrated with the feeder, internally capturing feeder statuses if available including Breaker On, Off, Spring Chrgd, Test, Service, AC-Fail, DC supervision relay, Trip circuit healthy relay, inter panel tripping, Master trip relay, local remote and display the same locally on a built-in LCD screen and suitably labeled status LEDs. Relay shall have facility to locally Trip/Close the breaker as a backup to TNC switch provided separately on the panel. The relay shall be fixed on new 2mm CRCA sheet of matching existing VCB panel color and suitable size covering all blank space formed by removing old mechanical type IDMT relay complete including associated wiring and integration with existing HT VCB panel complete all as specified and directed.

Supply, installation and testing of Numerical Relay in replacement draw out type in HT 11 KV VCB Panel comprising of new and modern numerical scheme for detecting, indicating and tripping the breaker on faults over-current and earth-fault in any of the three phases, Trip circuit supervision relay, 5% pick up for OC and 5% for EF. The relay shall also have the following features as minimum; (i) Programmable rated current 1A & 5A, (ii) Last 8 fault record & 200 event record with time stamping, (iii) 4 analog CT & 3 PT input, 8 DI & 8 DO, (iv) Communicable on IEC61850 protocol, (v) Disturbance recording upto 300 cycles, (vi) Self supervision function. The relay shall be fully integrated with the feeder, internally capturing feeder statuses if available including Breaker On, Off, Spring Chrgd, Test, Service, AC-Fail, Trip circuit healthy relay, PT supervision, inter panel tripping, Master trip relay, local remote and display the same locally on a built-in LCD screen and suitably labeled status LEDs. Relay shall have facility to locally Trip/Close the breaker as a backup to TNC switch provided separately on the panel. The relay shall be fixed on new 2mm CRCA sheet of matching existing VCB panel color and suitable size covering all blank space formed by removing old mechanical type IDMT relay complete including associated wiring and integration with existing HT VCB panel complete all as specified and directed.

Supply installation & commissioning in replacement of 24V/40A Float Cum Boost Battery Charger unit including battery bank comprising 02 Nos of 12 Volts-100 AH sealed maintenance free battery. The CCCV battery charger consisting of copper wound, air cooled transformer, 01 Set single phase full wave bridge rectifier consisting of diodes and SCRs, liberally rated mounted on heat sink and complete with resistor/condenser network for surge supperssion . During auto float mode automatic changeover shall take place from float mode to boost mode and vice versa, 01 Set of solid state constant potential controller to stabilize the DC output voltage of the float cum boost charger, 01 No electronic controller , DC digital ammeter , DC digital voltmeter, Potentiometer , DC, MCB for reverse battery protection . The charger should have alarm annunciation with visual and audible alarm with manual reset facility for fuse fail alarm. Float cum boost battery charger and DC distribution board shall be housed in powder coated sheet steel cubicle with panels of 1.6mm thickness , louvers for ventilation , gland plate will be provided for cable entry from bottom . The battery charger shall be divided into two compartments. The upper compartment shall house the battery charger & DCDB with all necessary controls. The lower compartment shall be suitable for housing the batteries. Tech specification shall be as under:-

(a) Input working voltage-180 -270 Volts (b) Nominal Input Voltage - 230 V , AC , 50 Hz,1 (c) On load input power factor - > 0.8 (d) On load unit watt efficiencies-> 80% (e) No load losses of complete charge-< 10% (f) Ripple contents on the load (RMS)= 1% to 5% (g) Over load - 110% for 30 minutes and will give visual indication for over load condition. (h) Boost charging - 2.4 V/Cell . (j) Float charging -2.15 V/Cell (k) Float cum boost charging-Automatically changes from one state to another state as per battery condition and will give the visual indication for either float or boost based on charging mode. (l) Reverse polarity -No damage will caused . A visual indication for reverse polarity will appear with an audio alarm. (m) Short circuit-MCB protecton provided. Make of battery charger. Statcon/Sinetrac/Amar Raja Make of batteries. Exide/Amaron/Okaya

Material and labour in replacement Retro Reflective installation sign boards of size 5 feet x 4 feet fabricated out of 16 gauge MS sheet frame duly welded/riveted with MS square pipe of size 25mm x25mm at height 2.00 meter above ground level on stainless steel heavy duty pipe of size 50mm bore embaded 60 CM in PCC 1:2:4 type B 1 block of size 45cmx45cmx60cm including necessary excavation and earth work .The steel portion of the board shall be painted in stove enameled paint and the front & back of the frame shall be overall sheathed with blue colour base painter adhesive tape. The wiriting matter will be in English language on both sides with reflective adhesive painter tapes as directed by Engineer -in-charge.

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm, 3 core.

Supply and fix Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of following size :-

95 Sqmm 3 core.

120 Sqmm to 185 Sqmm, 3 core.

240 Sqmm to 300 Sqmm, 3 core.

Suplying and laying as replacement in sub station fixing 3.3 to 11 KV electrical insulation mat of size 5 mtr x 1 mtr x 2.5 mm thick specification as per IS 15652 2006

M& L for demolition brick work in cable ducts complete all as directed

M&L Brick work with sub-class 'B' bricks, straight or curved on plan exc 6 m mean radius, built in cement mortar 1:6 for cable duct complete as specified and directed.

M&L Rendering 15mm thick on fair faces of brick work or concrete surfaces in cement mortar (1:4) finished fair and even without using extra cement complete as specified and directed.

M & L for PCC 1:3:6 type C-2 (using 40 mm gradded aggregate) for foundation, filling and mass concrete etc complete all as specified and directed .

S&F Mild steel chequered plates Fe 410-W (Gde-E-250) quality on cable duct cut sizes as required on site 8 mm thick in replacement PCC duct cover complete all as specified and directed.

M&L in replacement Earthing complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 3.5 m below normal ground level) with top edge of earth plate not less than 2.5m below normal ground level, connected to galvanized strip 32mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel as shown in electrical plate No 3 of SSR Part I, connected to earth test point and the equipment on the other nuts and washers of galvanised iron side complete all as specified, including testing and commissioning complete all as directed. Note : (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in soft/loose soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 type C2 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement 6mm dia both ways as in cover & frame for pit, funnel, watering pipe 20 mm bore GI pipe light grade, protection pipe 40 mm bore GI pipe medium grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI lead wire and protection pipe upto 7.5 meter beyond the earth plates electrode.

M&L in replacement of 32x6mm galvanised iron strip for earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in pipe or any other indicated situation for loop earthing etc complete all as specified and directed.

S&F and installation of battery 12 volts,100 AH, dry type in replacement of old unserviceable battery in battery charger with suitable size of new copper battery terminal and lugs and initialy charging, commissioning and testing complete.

Maintanance services to be provided for 11 KV Kabul line Sub station as per details as under (a) The installation is main receiving sub station and complaint centre minimum 01 electrician shall be provided per shift (Total Three shifts per day) around the clock (24 x 7) . the electrician shall have adequate knowledge of above maintioned job and GE/Engr-in-charge can reject the proposed electriciangiving reasoned rejection. No claim shall be admissible on account of rejection of person. (b) Details of equipment :- Transformer step down 11 KV/0.433 KV of capacity 630 KVA capacity -2 Nos, 11 KV 10 pole structure - 01 No, 11 KV VCB - 10 Nos, Battery Bank - 01 No, LT Panel - 02 Nos and Capacitor Panel - 021 Nos (c) The following checking, testing, supervision shall be carried out by electrician in respect of equpments mentioned at para (b) above:- (i) Recording of allparameters of system as per indication of all equipments installed in the log sheet as directed by ngr-in-charge round the clock on daily basis. (ii) Maintainance of fault register (iii) Maintainance of shutdown register (iv) Proper operation of 11 KV Breaker (v) Giving of Shouldown by draw out of trolley of breaker. (vi) Proper operation of 11 KV GO DO. (vii) Fixing of burnt out fuse on GO of 11 KV 4/6/8/10 pole structure. (viii) Checking of LED indication for breaker ON, OFF, Trip, Spriing charge, trip circuit healthy on daily basis.

(ix) Checking of annunciatore, hooter, indicators, meters, TNC switch, emergency trip push button, MCB for AC DC isolation,heater, thermostate on daily basis (x) Checking of status of Main protection numerical relay Auxillary protection relays such as trip circuit supervision relay (xi) Attending of all complaint of the Sub station area. (xii) Cleaning of dust & foreign particles on and around the panel, loose connection earthing connection in the sub station. (xiii) Testing of earth resistance of all earthing as directed by Engr-in-charge. (xiv) Checking of DC voltage of system as directed by Engr-in-charge.

Maintanance services to be provided for 11 KV Baird Place Sub station as per details as under (a) The installation is main receiving sub station and complaint centre minimum 01 electrician shall be provided per shift (Total Three shifts per day) around the clock (24 x 7) . the electrician shall have adequate knowledge of above maintioned job and GE/Engr-in-charge can reject the proposed electriciangiving reasoned rejection. No claim shall be admissible on account of rejection of person. (b) Details of equipment :- Transformer step down 11 KV/0.433 KV of capacity 1000 KVA capacity -1 Nos, 11 KV VCB - 07 Nos, Battery Bank - 01 No, LT Panel - 02 Nos and Capacitor Panel - 01 Nos (c) The following checking, testing, supervision shall be carried out by electrician in respect of equpments mentioned at para (b) above:- (i) Recording of allparameters of system as per indication of all equipments installed in the log sheet as directed by ngr-in-charge round the clock on daily basis. (ii) Maintainance of fault register (iii) Maintainance of shutdown register (iv) Proper operation of 11 KV Breaker (v) Giving of Shouldown by draw out of trolley of breaker. (vi) Proper operation of 11 KV GO DO. (vii) Fixing of burnt out fuse on GO of 11 KV 4/6/8/10 pole structure

(viii) Checking of LED indication for breaker ON, OFF, Trip, Spriing charge, trip circuit heakthy on daily basis (ix) Checking of annunciatore, hooter, indicators, meters, TNC switch, emergency trip push button, MCB for AC DC isolation,heater, thermostate on daily basis (x) Checking of status of Main protection numerical relay Auxillary protection relays such as trip circuit supervision relay (xi) Attending of all complaint of the Sub station area. (xii) Cleaning of dust & foreign particles on and around the panel, loose connection earthing connection in the sub station. (xiii) Testing of earth resistance of all earthing as directed by Engr-in-charge. (xiv) Checking of DC voltage of system as directed by Engr-in-charge.

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