Repair maintenance to switch gear VCB of Shankar Vihar OTM Accn Md Accn Bana Singh VRC AHQ Camp DGIS and Rangpuri and adjoining area of AGE U Elect Supply No III under GE U Elect Supply Delhi Cantt 10

Amount

Supply, installation and testing of Numerical Relay, transformer protection 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, feeder protection relay in existing HT 11 KV VCB Panel comprising of new and modern numerical scheme for detecting, indicating and tripping the breaker on various faults like or earth-fault in any of the three phases, circuit-breaker-failure alarm, tripping-circuit-failures etc. The relay shall also have the following features as minimum; (i) Programmable rated 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.

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.

Supplying, installing, testing and commissioning in reapirs of Indoor arc flash protected Draw-Out with roll on floor type Vacuum Circuit Breaker HV compartment , rated for 11kV, 630 Amp,25 kA /3-sec, confirming to IEC 62271-200, Internal Arc Classified IAC AFLR – 25 kA for 0.1 sec for all three chamber (Bus, Cable & Breaker) , Accessibility Class LSC2B-PM Class, comprising of 630 Amp, continuous rated Copper busbars and droppers, 01nos. The earthing switch for maintenance purpose and discharge function to be provided in the cubicle and should be an integral part of the cable chamber alogwith operating handle ie rack -in-rack -out. 4 NO+4NC shall be provided in breaker. The HV compartment shall consist of following :- (i) 11kV, 630Amp, 25 KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100. Vacuum Circuit Breaker having 03nos. vacuum bottles of same make as of circuit breaker, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (24 Volt DC). Note :- HV compartment shall support installation of existing CT and PT. The HV compartment shall be integrated with existing LV compartment .

Supplying, installing, testing and commissioning of Indoor arc flash protected Draw-Out with roll on floor type Vacuum Circuit Breaker HV compartment , rated for 11kV, 630 Amp,25 kA /3-sec, confirming to IEC 62271-200, Internal Arc Classified IAC AFLR – 25 kA for 0.1 sec for all three chamber (Bus, Cable & Breaker) , Accessibility Class LSC2B-PM Class, comprising of 630 Amp, continuous rated Copper busbars and droppers, 01nos. The earthing switch for maintenance purpose and discharge function to be provided in the cubicle and should be an integral part of the cable chamber alogwith operating handle ie rack -in-rack -out. 4 NO+4NC shall be provided in breaker. The HV compartment shall consist of following :- (i) 11kV, 630Amp, 25 KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100. Vacuum Circuit Breaker having 03nos. vacuum bottles of same make as of circuit breaker, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (24 Volt DC). Note :- Bus coupler compartment shall support installation of existing CT and PT. The HV compartment shall be integrated with existing LV compartment .

Supplying, installing, testing and commissioning of Indoor arc flash protected Draw-Out with roll on floor type Vacuum Circuit Breaker HV compartment , rated for 11kV,630 Amp,25 kA /3-sec, confirming to IEC 62271-200, Internal Arc Classified IAC AFLR – 25 kA for 0.1 sec for all three chamber (Bus, Cable & Breaker) , Accessibility Class LSC2B-PM Class, comprising of 630 Amp, continuous rated Copper busbars and droppers, 01nos. The earthing switch for switch for maintenance purpose and discharge function to be provided in the cubicle and should be an integral part of the cable chamber alogwith operating handle ie rack -in-rack -out. 4 NO+4NC shall be provided in breaker. The HV compartment shall consist of following :- (i) 11kV, 630Amp, 25 KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100. Vacuum Circuit Breaker having 03nos. vacuum bottles of same make as of circuit breaker, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (24 Volt DC). Note :- HV compartment shall support installation of existing CT. The HV compartment shall be integrated with existing LV compartment .

Supplying and installation of Relay and metering panel in existing HV compartment factory made 2.0 mm thick IP 54 mounted to be mounted on VCB HT compartment comprising of following:-

(a) Main Protection Relay:- (i) Main protection Numerical Relay 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, 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.

(b) Metering Equipment including:- (i) 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5), (ii) 01 x Multi-Function-Meter (Acc.Cl.0.5) shall be provided with LCD display for measuring current, voltage, power, power-factor and energy-parameters, Total Harmonic Distortion and Max. Demand Indication, same shall be communicable on ModBus via RS485 port.

(c) LED Indications :- (i) Breaker ON/OFF/TRIP/Spring-Charged, (ii) Trip Circuit Healthy (iii) R-Y-B (iv) DC available LED with push button. (v) AC Supply fail.

(d) 08-Window Annunciator with Hooter to indicate following alarms :- (i) OC Trip, (ii) EF Trip (iii) Trip Circuit Failure, (iv) Inter-Tripping Fault, (v) PT Fuse Failure The Annunciator will be complete with required Acknowledge/Test buttons as required

(e) Flush mounted Auxillary Protection Relays incl:- (i) Trip Circuit Supervision Relay (ii) Master trip Relay (iii) PT Fuse failure relay. (iv) DC Supervision Scheme

Supplying and installation of Relay and metering panel in existing HV compartment factory made 2.0 mm thick IP 54 mounted to be mounted on VCB HT compartment comprising of following:-

(a) Main Protection Relay:- (i) Main protection Numerical Relay 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, 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.

(b) Metering Equipment including:- (i) 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5), (ii) 01 x Multi-Function-Meter (Acc.Cl.0.5) shall be provided with LCD display for measuring current, voltage, power, power-factor and energy-parameters, Total Harmonic Distortion and Max. Demand Indication, same shall be communicable on ModBus via RS485 port.

(c) LED Indications :- (i) Breaker ON/OFF/TRIP/Spring-Charged, (ii) Trip Circuit Healthy (iii) R-Y-B (iv) DC available LED with push button. (v) AC Supply fail.

(d) 08-Window Annunciator with Hooter to indicate following alarms :- (i) OC Trip, (ii) EF Trip (iii) Trip Circuit Failure, (iv) Inter-Tripping Fault, The Annunciator will be complete with required Acknowledge/Test buttons as required

e) Control Equipment incl:- (i) 01 x TNC Switch, (ii) 01 x Emergency Trip Push Button, (iii) 01 x Local/Remote Switch, (iv) MCBs for AC/DC isolation (v) Heater Switch with Thermostat - 01 No (vi) 3-pin socket with ON/OFF switch - 01 No (vii) LED Lamp with ON/OFF switch - 01 No

(f) Flush mounted Auxillary Protection Relays incl:- (i) Trip Circuit Supervision Relay (ii) Master trip Relay (iii) DC Supervision Scheme

Material and labour for servicing /testing and calibration 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. (iv) Contact resistance test for all three poles (v) Closing coil resistance (vi) Tripping coil resistance. (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 Note:- Test report shall be laminated to control panel of respective breaker.

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 12 here-in-before but having ratio 150/75/5-5

All as per item No 12 here-in-before but having ratio 100/50/5-5

All as per item No 12 here-in-before but having ratio 60/30/5-5

All as per item No 12 here-in-before but having ratio 50/25/5-5

Supplying and fixing in replacement Potential Transformers, Draw-out 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 .

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 spring bearing gear suitable for 400/630/800 amps, 11 KV HT VCB complete 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 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 of Digital Volt meter Secondary voltage 110 V for 11 KV VCB Control Panel.

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.

Microsys Controls India

Vijay Electricals

MV Engineers And Contractors

Buddham Builders

DS CONSTRUCTION

Ridhi engineers and builders

mayur enterprises

M/s Birja Nand