SPL REPAIR FOR REPLACEMENT OF OLD UNSERVICEABLE ELECTROMECHANICAL RELAY WITH NUMERICAL RELAYS WITH CONNECTED ITEMS AT 11 KV MAIN RECEIVING STATION KALIMPONG UNDER GE 867 EWS 4TH Call

Amount

Dismantling of unserviceable existing relays from VCB by disconnecting from electric supply after taking proper shut down complete all as specified and directed.

Dismantling of unserviceable existing power pack unit from VCB by disconnecting from electric supply after taking proper shut down complete all as specified and directed.

Dismantling of unserviceable master trip relays from VCB by disconnecting from electric supply after taking proper shut down complete all as specified and directed.

Note for item 1.00 to 3.00:- Contractor will place suitable size of sheet to cover up the disturbed surface after dismantling of relays from the VCBs.

Dismantling of unserviceable male/female contact from existing position from VCB by disconnecting electric supply complete all as specified and directed.

Dismantling and refixing of spring charging motor of VCB by disconnecting from electric supply after taking proper shut down complete all as specified and directed.

Material and labour for fault finding and repair/ replacement of defective control wiring of tripping circuit, closing circuit, potential transformers, ampere meter, voltmeter, current transformers, thermostat & heating element circuits of indoor type 11 KV VCB using with 2.5 sqmm copper flexible PVC insulated wire and suitable size of copper lugs and thimbles and connector all as specified and directed.

Material and labour for replacement of U/S Bakelite base and fuse grip incl fuse link suitable for control wiring of 11 KV VCB'S all as specified and directed.

Material and labour for replacement of 4 pole, 2 NO/2NC of 10 A of auxiliary contactor 110 Volt DC supply used for protection of earth fault and over current relay all as specified and directed.. Make : Siemens, L&T, Schneider.

supply and fixing in repair of LED type indicator lamp (Red/Blue/Yellow) suitable for 110 Volt DC in OCB's/VCB's, all as specified and directed.

Material and labour for replacement of unserviceable male contacts up to 400 A suitable for 11 KV Indoor/Outdoor Type VCB/OCB's all as specified and directed. Make as per sample

Material and labour for replacement of unserviceable Female contacts Suitable for 11 KV Indoor/Outdoor Type VCB's/OCB 's up to 400A all as specified and directed. Make : as per sample.

Material and labour for replacement of unserviceable tripping/ closing coil as fitted in existing VCB of 24/110 Volt DC Supply suitable for 11 KV VCB all as specified and directed.

Material and labour for rewinding of spring charging motor for Indoor/outdoor type, 11 KV, VCB, operated on 230 volts AC/ DC complete all as specified and directed.

Material and labour for repairing of 11 KV VCB trolley shuttering by providing greasing, oiling and replacement of nuts and bolts and repairing of mechanism of Schneider make VCB installed at power house complete all as specified and directed.

Material and labour for replacement of closing buffer of 11 KV VCB complete all as specified and directed.

Material and labour for replacement of tripping buffer of 11 KV VCB complete all as specified and directed.

Material and labour for 2.5 sqmm single core FRLS copper wire of 1100 Volt grade with suitable copper lugs complete all as specified and directed.

Supply and fix battery charger of 24 Volts output of 10 Amps , Input 88 V -260 Volts AC with protection fuse, Min on LED indication, AC and DC fail indication, float/boast/battery rev indication LED lamp, suitable for 11 KV VCB DC supply complete all as specified and directed.

Earthing complete with galvanized steel earth plate electrodes 600mmx600mmx6 mm thick buried directly in ground earth (earth pit not less 2.25 m deep below ground level) with top edge of the plate not less then 1.5 mtr below normal ground level connected to galvanised iron earthing 32 x 6 mm thick by means of bolt nuts check nuts and washers of galvanized iron or steel all as specified & shown in electrical plate No.3 of MES SSR part-I 2009 connected to earth test point as specified and testing on completion including watering pipe shall be 20 mm bore medium grade including all excavation & earth work in any type of strata incl PCC pit (1:3:6) type C-1 with RCC cover including charcoal , salt, funnel, all as specified and directed.

Material and labour for battery 12 volts, 130 AH complete with connected accessories suitable for 24 volts inverter complete all as specified and directed. Make :Exide/Amaron or equivalent

Material and labour for saturation testing of current transformers (set of three), relative circuits of 11 KV VCB using primary injection testing equipment through experienced and licensed electrical engineer and submitting of testing report complete all as specified and directed.

Material and labour for repairing of spring charging mechanism of 11 KV VCB including replacement of ball bearing, lever and welding of latch reassembling and testing complete including minor spares required at site all as specified and directed.

Supply and fix Hybrid HB inverter UPS suitable for input voltage 100 -300 VAC, out put 210 V, Capacity 1650 VA suitable for 02 battery system, charging current 14Amps, smart overload and short circuit sense, display indications (status & fault), PWM controlled multistage ATM (Automatic Trickle Mode) charging, Digital signal controller (DSC) based Intelligent Control Hybrid Design, Pure and stable Sine wave output with very low THD, under all battery and load conditions, Unique USS (Ultra Sonic switching) technology ensures absolute Silent operation, IBGM Technology including trolley for batteries complete all as specified and directed. 1) Make of Inverter - Microtek/Luminous/Exide 2) Make of trolley- Microtek/Luminous/Exide

Supply and fix Electromechanical high speed hand reset master trip Auxiliary relay 24 V coil supply, 4 NO + 1 NC type contact, burden 25 VA, 70% to 120 % of rated operating voltage, max contact rating 30A for 3 sec AC and DC complete with wiring and mounting sheet of suitable thickness and size to hold the eletro mechanical Auxiliary all as specified and directed. Make-Crompton Greaves, Model-CGXH1 HRMTR

Material and labour for general servicing and testing of 11 KV/110V PT (Cleaning, IR Value check and Ratio test) complete all as specified and directed.

Material and labour for replacement of old unserviceable voltmeter/Ammeter with panel mounted multi function three phase digital energy meter of accuracy CL-1.0 for measuring Voltage, Current, KW , KVAR, KWH, KVAH and power factor and making good the disturbed surface HT VCB panel with suitable size of MS sheet by welding/riveting duly painted all as specified and directed.. Make-Schneider EM6400 or equivalent in Siemens/ L&T

Material and labour for breaker control switch (TNC switch) suitable for fixing in 11 KV VCB all as specified and directed.

S&F heater suitable for indoor 11 KV VCB (01 to be installed in existing position and 01 to be in cable chamber with thermostat and wiring) complete all as specified and directed.

M&L for replacement of maintenance free battery 12 Volts 12 AH (suitable for 24 V DC supply to relays and will be connected with battery charger) complete all as specified and directed. Make-Exide/Luminous/Amaron

Note for item 1 to 30:- Contractor should visit the site to know the exact scope of the job for above items of the BOQ before quoting rates. No claim arising out of any error or inaccuracy in understanding the scope of work shall be entertained. The work will be done by any authorised agency.

Note:- The contract sum shall be arrived at after deducting amount of schedule of credit from the total quoted amount.

SANJAY SAW MILL

M/S MECHANICAL ENGINEERING and ELECTRICAL CONTRACTORS

MS MAYA PRAKASH GOEL AND SONS

GEETA CONSTRUCTION