REPAIR REPLACEMENT OF CTs PTs AND RELAYS HT DISTRIBUTION SYSTEM AND OTHER ALLIED WORKS AT AFS MEMAURA

Line isolator, 33 KV (Horizontal type) :- Servicing of line isolator (Horizontal break outdoor type) including cleaning of contact (knife) by CTC liquid proper oiling greasing on contacts & moving rod / handle for proper function of moveable rod for smooth ON / OFF position and checking,tightining the incoming and outgoing connection (terminal lugs to be replaced if required as per existing size with GI nut bolts,washer) and testing with following (i) Meggar testing between phase to phase & phase to earth shall be carried out etc complete as specified and directed.(ii) cost of clamp and fixing items are included in quated rate.

HT Potential Transformer (33 KV / 110 Volt) :- Cleaning of bushing and terminal of HT potential transformer 33000 / 110 volts (outdoor type) by CTC liquid and checking of oil level incl rectify the any leakage and proper connection checking and testing with following :- (i) Meggar testing between phase to phase& phase to earth (ii) Checking output voltage (iii) Testing the oil dielectric strength (BD test)

Vacuum Circuit Breaker (VCB) 33 KV :- Cleaning & servicing of HT 33 KV vacuum circuit breaker (VCB) 400/630/1250 Amp, 3 phase, outdoor type, checking of each moving parts, spring, charging system, closing & trip coil assembly and proper oiling, greasing and proper adjustment of trip bars, closing bar complete with the following testing :- (i) ON/OFF testing in local and remote position. (ii )Spring charge system testing shall be carried out. (iii) Tripping test in over and earth fault position by external current injecting Kit on Primary Secondary side. (iv) Meggar testing between phase to phase and phase to earth in ON / OFF position both.

HT 33 KV Current Transformer (CT) :- Cleaning of bushing and terminal by CTC solution of CT rating 100 / 5 + 5 + 1 Amp rating, 33 KV and checking of oil level , rectify the leakage if any and testing the oil strength (BD test) and proper connection checking and testing with following :- (i) Meggar testing between phase to phase& phase to earth

33 KV VCB Control & Relay Panel :- Cleaning of control & relay panel inside & outside by CTC solution and checking all the control cable connection of CT, PT, PCVCB, meters, trivector meter transformer complete all as specified and directed.

Transformer 33 / 11 KV, 2 MVA :- Cleaning of power transformer 33 /11 KV, 2 MVA, outdoor type externally including all accessories (such as conservator tank, marshaling box, bushings, bucholz relay Radiator, bushings oil level indicator,rectyfy the leakage if any) complete and checking the incoming and outgoing terminal connection complete with the following testing :- (i) Transformer oil dielectric strength (BD voltage) test. (ii) Buccholz relay Alarm & trip testing. (iii) Oil temperature Alarm & trip testing. (iv) Winding temperature Alarm & trip testing. (v) Meggar testing between HV to earth. (vi) Meggar testing between LV to earth. (vii) Meggar testing between HV to LV . (viii) Earth resistance test of transformer neutral. (ix) Earth resistance test for body earthing. (x) Replacement the all packing in marshalling box (if required)

Transformer 33/ 0.433 KV, 100 KVA (Station Transformer) :- Cleaning of station transformer (outdoor type) externally including all accessories and checking of all incoming & outgoing connection and rectify the leakage if any incl with the following testing :- (i) Transformer oil dielectric strength (BD) test. (ii) Meggar testing between HV to earth. (iii) Meggar testing between LV to earth. (iv) Meggar testing between HV to LV . (v) Earth resistance test of transformer neutral. (vi) Earth resistance test for body earthing.

M&L for painting of 33 /11 KV MRS switch yard MS structure with one coats of asian make aluminum paint after cleaning and making good surface for panting of the following structure:- (a) Bus bar Gantry:- Painting of bus bar Gantry of MS channel (I Section) size 150 mm x 75 mm x 5.5 mtr long - 12 Nos (b) Lightening arresters (LA):- Painting of lightening Arresters of MS channel (C-section) of size 100 mm x 50 mm x 3.0 mtr long -02 Nos with MS Angle iron 50x 50 x 2.65 mtr long -02 Nos complete - 03 Job (c) Line isolator (LI):- Painting Line isolator of MS channel ( C-section) of size (125 mm x 65mm x 2.50 mtr long -04 Nos) and ( 100 mm x 50 mm x 1.00 mtr -03 Nos) with MS flat bracing (50mm x 50mm x 0.30 mtr -6 Nos) and MS Angle iron ( 50 mm x 50 mm x 2.65 mtr long-02 Nos) complete -09 Job (d) Horn Gap fuse:- All as per item No 2 (c) here in before. Qty - 03 Job (e) Pin insulator supporting structure :- All as per item No 2 (c) here in before. Qty - 03 Job (f) PT supporting structure :- All as per item No 2 (c) here in before. Qty - 04 Job (g) VCB / CT stand :- Painting of CT VCB structure made out of MS channel ( C-section) of size ( 65 mm x 65 mm x 1.10 mtr long- 04 Nos) and ( 100 mm x 50 mm x 0.90 mtr long- 03 Nos) and ( 100 mm x 50 mm x 1.90 mtr long- 04 Nos) and Angle iron of size ( 50 mm x 50 mm x 1.10 mtr -04 No) ( 50 mm x 50 mm x 0.70 mtr long- 06 Nos) and (50 mm x 50mm x 0.25 Mtr long - 05 Nos) complete -03 Job complete (h) LA pole:- Painting of LA pole mtr -05 No

M&L and Servicing and calibration to 11KV HT VCB (SF-6 type) of RMU complete with the following:- Make of VCB/RMU: ABB/Siemens/Crompton (a) Caliberation of relay any type/make/model on HT panel (2 Nos over current & 01 No earth fault relay) as per load or as directed by Engr-in-charge and cleaning the contact (NO+NC) by CTC solution and adjust the contact and testing the relay by testing kit etc complete all as specified and directed. (b) Opening the HT panel bus bar and descaling of carbon , cleaning the bus bar, and closed the whole by putty and other material in all respect etc complete as specified and directed Note for (a) to (b):- (i) Replacing new items shall be measured and paid separately as supply only. (ii) Contractor shall submit the connected test report to Engr-in-charge