REPAIR AND MAINTENANCE OF VCB, RMU AND HT SWITCH GEARS INCLUDING OTHER WORKS AT HISAR MIL STN UNDER GE HISAR

Amount

Disconnecting the existing incoming & outgoing connections and inspection, servicing, overhauling, testing, checking and calibration of VCB panel, 11 kV, vertical or horizontal isolation, installed with VCBs and connected relays/ accessories including servicing, cleaning, tightening of loose mechanical mechanism, greasing, inspection of busbar, CTs/PTs, internal wiring of control panel, indicators, measuring of IR value, calibration of IDMT relays, replacement of unserviceable spare parts, testing of tripping system, to maintain desired insulation level of each panel and removing all type of dust and settled dirt by mechanical means including testing complete all as specified and as directed including the followings: - (a) Cleaning of Vacuum Circuit Breaker with CRC-226. (b)Removal of old grease and re-greasing the same with recommended grease (c) To check the condition of SIC contacts. (d) Checking condition and alignment of jaw contact. (e) Checking and proper tightening of hardware. (f) Checking of proper closing/ open of all poles. (g) Checking of breaker tripping through push button. (h) Checking and adjusting gap between hylem sheet and side plate. (i) Checking motor operation in case of EDO. (j) Checking auxiliary contacts continuity proper change over. (k) Checking of presence if circlips. (l) Checking IR between phase to phase (VCB closed condition). (m) Checking IR between phase to earth (VCB closed condition). (n) Checking IR between phase to earth (VCB open condition). (o) Cleaning and providing lubricants on movable mechanical parts. (p) Testing of relays through secondary injections. (q) Tripping of VCB through Buchholz relay/ OTI/WTI if required. (r) Testing of CTs and PT.(s) Testing of contact resistance of VCBs (s) Contact resistance Test (CRM) testing of VCBs. Note: - (i) The quoted rate shall be inclusive of required T & P for including servicing, overhauling, calibration and testing etc. (ii) The new spare parts required for replacement shall be paid and measured separately as supply only or supply and fix in repairs as mentioned under the relevant item. (iii) Servicing, overhauling, calibration and testing etc. shall be carried out as per the Manufacturer’s instructions/ guideline and by the authorised rep of the manufacturer. The certificate shall be rendered by the company for effective and properly functioning of the VCB. The necessary literature shall be made available to the department. The quoted rate shall be inclusive of these aspects.

Supplying, installing, testing and commissioning in repairs potential transformer, single phase, draw out type, epoxy resin cast, dry type, indoor type, nominal system voltage 11 kV, highest system voltage 12 kV, secondary voltage 110 V, VA burden 50 VA, accuracy class 1.0, power frequency withstand voltage 28 kV, lightning impulse withstand voltage 75 kV, application Metering, suitable for VCB with and including fuse complete all as specified and as directed.

Supplying, installing, commissioning and testing in repairs current transformer for metering and protection, indoor type, 11 kV system voltage, 12 kV rated voltage, single phase, resin cast epoxy type with double core double ratio secondary winding, short circuit current 13.1 kA for 1 sec, CT ratio 400-200/5-5, metering class 0.5, protection class 5P10 complete all as specified and as directed.

Supplying, installing, commissioning and testing in repairs current transformer for metering and protection, indoor type, 11 kV system voltage, 12 kV rated voltage, single phase, resin cast epoxy type with double core double ratio secondary winding, short circuit current 13.1 kA for 1 sec, CT ratio 300-100/5-5, metering class 0.5, protection class 5P10 complete all as specified and as directed.

Supplying, installing, commissioning and testing in repairs current transformer for metering and protection, indoor type, 11 kV system voltage, 12 kV rated voltage, single phase, resin cast epoxy type with double core double ratio secondary winding, short circuit current 13.1 kA for 1 sec, CT ratio 200-100/5-5, metering class 0.5, protection class 5P10 complete all as specified and as directed.

Supplying, installing, commissioning and testing in repairs current transformer for metering and protection, indoor type, 11 kV system voltage, 12 kV rated voltage, single phase, resin cast epoxy type with double core double ratio secondary winding, short circuit current 13.1 kA for 1 sec, CT ratio 100-50/5-5, metering class 0.5, protection class 5P10 complete all as specified and as directed.

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

S & F in repairs anti-condensation space-heater with thermostatic control in cable and circuit breaker compartments of HT switchgears complete all as specified and as directed.

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

S & F in repairs copper busbar fully insulated with class F materials for 400/630/800 amps, 11 kV HT VCB panel complete all as specified and as directed.

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

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

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

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

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

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

S & F in repairs reel insulator for 11 kV HT VCB of capacity 400/630/800 amps capacity all as specified and directed.

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

S & F in repairs auxiliary switch suitable for 400/630/800 amps, 11 kV HT VCB complete all as specified and as directed.

S & F in repairs breaker control switch (Trip-Neutral-Close), spring return type, rated operational volage (Ue) 690 V AC, resistance to surge voltage (Uimp) 6 kV, rated uninterrupted current (Ith) 32 Amps, short circuit protection HRC fuse size 25 A, rated short circuit 10 kA, general endurance : mechanical 100,000 operations at 300 cycles/hour, electrical 10,000 operations at 120 cycles/hour Operational Temperature 250C to 550C, frequency upto 5 kHz complete all as specified and as directed.

S & F in repairs support rod with screws suitable for 400/630/800 amps, 11 kV HT VCB complete all as specified and as directed.

S & F in repairs support insulator suitable for 400/630/800 amps, 11 kV HT VCB complete all as specified and as directed.

S & F in repairs upper connector suitable for 400/630/800 amps, 11 kV HT VCB complete all as specified and as directed.

S & F in repairs lower connector suitable for 400/630/800 amps, 11 kV HT VCB complete all as specified and as directed.

S & F in repairs set of 6 Nos fixed arcing contacts suitable for 400/630/800 amps, 11 kV HT VCB complete all as specified and as directed.

S & F in repairs caution plate “CAUTION MEN AT WORK of size 40 cm X 15 cm made out of white acrylic sheet with red coloured glow tape complete all as specified and as directed.

S & F in repairs fuse-link (fuse unit), current limiting fuses type, HRC type, 12 kV rated voltage, current rating of 6.3 A to 16 A, breaking capacity 50 kA, suitable for indoor and outdoor use, as per IS 9385 (Part-1): 2018 complete all as specified and as directed.

S & F in repairs digital ammeter, 3 phase, 415 volts, 3 line LED display, class 0.5 as per IEC 62053-22, 4 digit display type, measuring current range 50 mA to 6 A, nominal current range (In) 1 A or 5 A, overload 150% In continuous, short time over current 120 A for 1 sec, IP54 protection degree for front fascia, impulse withstand 6.5 kV, dimension 96 mm X 96 mm complete all as specified and as directed.

S & F in repairs digital voltmeter, 3 phase, 415 volts, 3 line LED display, class 0.5 as per IEC 62053-22, 4 digit display type, measuring voltage range 20 V to 500 V, nominal voltage range 57.5 V to 240 V (phase to neutral); 100 V to 415 V (phase to phase), over voltage 150% Un continuous, short time over current 120 A for 1 sec, IP54 protection degree for front fascia, impulse withstand 6.5 kV, dimension 96 mm X 96 mm complete all as specified and as directed.

S & F in repairs of HT bus bar panel cubical outdoor type of capacity 11 kV 630 Amp (or nearest higher) rating busbar totally sheet metal enclosed, the panel suitable for 01 No incoming HT cable and 04 Nos outgoing HT cable connection including 630 Amps copper busbar 03 Nos of suitable length, suitable size of insulation, The panel shall be dust and vermin proof IP65 class protection and made of 3 mm CRCA MS sheet, 40 mm X 40 mm X 5 mm thick mild steel angle iron frame work, powder coated finished over one coat of red oxide on outside surface and painted in side with two coats of red oxide primer and rear opening type with apron for cable entry closing locking arrangement, suitable size of copper gland, suitable size of nuts, bolts and washers complete all as specified and as directed. Note:(i) All incoming and outgoing feeder shall be connected by HT cable through suitable size glands & thimbles.(ii) The various feeders shall be indicated by 50 mm size letters in synthetic enamel white paint.(iii) All HT cable should be connected to Bus bar directly through expended links.

S & F in repairs breaker operating mechanism suitable for 400/630/800 amps, 11 kV HT VCB complete all as specified and as directed.

S & F in repairs overcurrent and earth fault numerical, IDMT relay suitable for existing VCB panel complete all as specified and as directed.

S & F in repairs indicating lamps LED, 24V, 2 Watt with holder, any type (Red/ Green/ White/ Amber /blue) complete all as specified and as directed.

S & F in repairs battery 12 volts, 180 AH, dry type in replacement of old unserviceable battery in battery charger with suitable size of new copper battery terminal and lugs and initially charging, commissioning and testing complete all as specified and as directed.

Disconnecting the existing incoming & outgoing connections and inspection, servicing, overhauling, testing, checking and calibration of Ring Main Unit (RMU) of capacity upto 800 Amps of any make of rating 11 kV including servicing, cleaning, tightening of loose mechanical mechanism, greasing, inspection of busbar, internal wiring, indicators, measuring of IR value, calibration of, replacement of unserviceable spare parts, testing of tripping system, to maintain desired insulation level of each panel and removing all type of dust and settled dirt by mechanical means including testing complete all as specified and as directed including the followings: - (A) Visual inspection and rectification to the RMU, control circuit and its components for loose bolts and unts, dust and foreign matters, dislocated parts, filling and chips, indication of indicator and counter deformation, damage, wear and tear, corrosion, physical damage, check for dislocated connectors and pins and for deformation and break, check for loose fastenings of the switch terminals and for rust (B) Using thermal imaging cameras to detect hot spots that indicate potential problems such as loose connections or overloaded components and their rectifications. (C) Checking and rectification of operation of auxiliary switches, contact state of limit switches, electrical open-close operation (D) Cleaning the RMU and its surroundings to prevent dust and debris from interfering with the operation of components. (E) Resetting operation of trip prop and closing prop, movement of rollers and pins, warping or galling of parts and checking on reset condition (F) Remove old grease and apply new grease, lubricate the moving parts of switches to ensure smooth operation and prevent seizing, lubricate the moving parts of circuit breakers to ensure reliable operation and longevity. (G) Checking on wipe dimension (H) Checking for abnormal noise and smell (I) Electrical Testing (i) Insulation Resistance Testing: Measure the insulation resistance of cables, busbars, and other components to ensure they are functioning correctly and not degrading. (ii) Dielectric Testing: Perform dielectric tests to verify the insulating properties of components and ensure they can handle the operating voltage. (iii) Contact Resistance Testing: Check the resistance of electrical contacts to ensure they are low and stable, indicating good connectivity. (J) Functional Testing (i) Switch Operation: Test the operation of switches to ensure they can open and close correctly and smoothly. (ii) Circuit Breaker Testing: Test the tripping mechanism of circuit breakers to ensure they operate correctly under fault conditions. (iii) Protection Relay Testing: Test protection relays to verify their settings and functionality. This includes testing the trip settings and timing to ensure accurate fault detection and isolation. Note: - (i) The quoted rate shall be inclusive of required T & P for including servicing, overhauling, calibration and testing etc. (ii) The new spare parts required for replacement shall be paid and measured separately as supply only or supply and fix in repairs as mentioned under the relevant item. (iii) Servicing, overhauling, calibration and testing etc. shall be carried out as per the Manufacturer’s instructions/ guideline and by the authorised rep of the manufacturer. The certificate shall be rendered by the company for effective and properly functioning of the RMU (Ring Min Unit). The necessary literature shall be made available to the department. The quoted rate shall be inclusive of these aspects.

S & F in repairs of bushing for existing RMU panel complete all as specified and as directed. Make of RMU: ABB/ CG/ Areva/ Siemens/ Schneider/ C&S or equivalent

S & F in repairs of bushing boot for existing RMU panel complete all as specified and as directed. Make of RMU: ABB/ CG/ Areva/ Siemens/ Schneider/ C&S or equivalent

S & F in repairs CT for existing RMU panel complete all as specified and as directed. Make of RMU: ABB/ CG/ Areva/ Siemens/ Schneider/ C&S or equivalent

S & F in repairs mechanism for existing RMU panel complete all as specified and as directed. Make of RMU: ABB/ CG/ Areva/ Siemens/ Schneider/ C&S or equivalent

Supplying & filling SF6 gas for existing RMU panel complete all as specified and as directed. Make of RMU: ABB/ CG/ Areva/ Siemens/ Schneider/ C&S or equivalent

S & F in repairs relay for existing RMU panel complete all as specified and as directed. Make: ABB/ CG/ Areva/ Siemens/ Schneider/ C&S or equivalent

S & F in repairs tripping coil for existing RMU panel complete all as specified and as directed. Make of RMU: ABB/ CG/ Areva/ Siemens/ Schneider/ C&S or equivalent

S & F in repairs insulator for existing RMU panel complete all as specified and as directed. Make of RMU: ABB/ CG/ Areva/ Siemens/ Schneider/ C&S or equivalent

S & F in repairs charging socket for existing RMU panel complete all as specified and as directed. Make of RMU: ABB/ CG/ Areva/ Siemens/ Schneider/ C&S or equivalent

S & F in repairs virtual path indicator for existing RMU panel complete all as specified and as directed. Make of RMU: ABB/ CG/ Areva/ Siemens/ Schneider/ C&S or equivalent

M& L for preparation of old painted surfaces by removing dust, rust oil and scraping etc. for painting the VCBs panel inside and outside with the help of jet spray paints in different location with two coats of synthetic enamel paint for matching of existing colour over the existing painted surfaces after apply putty and a coat of red oxide primer and writing SM/MES No, Feeder details in black letter complete all as specified & as directed

Raman Electric Trading Co (BID ID -3141905)

M/s Devendera construction (BID ID -3142438)

SAINI ELECTRIC STORE (BID ID -3137873)