Operation and Maintenance of Electrical Installations at 33KV Main Receiving station (MRS) and allied works at Kannur International Airport Ltd

Amount

(i) Operation and day to day maintenance of all electrical and Mechanical installations related to 33 kV Main Receiving Station of Kannur Airport for all days including Sundays and holidays, round the clock as per the special conditions, scope of work, and other contract terms and conditions of contract etc. complete as required by deploying adequate manpower and all as directed by Engineer In Charge(EIC). (ii) Weekly maintenance and preventive checking of all electrical installations of following installations including parts replacement as per the special conditions, scope of work, and other contract terms and conditions etc. complete as required including manpower deployment. A- Aviation Obstruction Light(AOL) at Peralimala Hills. B- Aviation Obstruction Light(AOL) at Edavelikkal Hills. C- National Flag mast at Airport.

First year

Second year

Third year

Dehydration and filtration of Transformer oil till break down voltage (BDV) achieve desired value, conducting acidity test, submission of report for the following Transformers including topping up the Transformer oil, cleaning, tightness of bolts and nuts etc. as required. BDV report of Transformer oil shall be taken and submitted before and after filtration. Calibration certificate or BDV test kit shall be furnished from an approved laboratory.

33/11kV, 5MVA, make: KEL, Transformer. Sl no:90370, Qty of oil- 2500Ltrs.

33/11kV, 5MVA, make: KEL, Transformer. Sl no:-90371, Qty of oil- 2500Ltrs.

11/0.415kV, 250 kVA, make: Unipower system, Transformer. Sl no: 10673, Qty of oil- 311 Ltrs.

Carrying out BDV and acidity test of Transformer oil sample taken at top and bottom level of Transformer and submission of test report etc. as required. (Each job means top and bottom sample result). BDV test shall be carried out from a NABL accredited laboratory

Annual servicing of HT VCBs by OEM/ Authorized service dealers of OEM including 4 (quarterly) mandatory visit by the service Engineer, Carrying out the preventive checks as per OEMs recommendation and attending breakdown as and when required. Over hauling of VCB to be done once in a year in line with special conditions of contract. Spare if any required shall be provided by Kannur Airport. (4 visit of each HT VCBs including one overhauling shall consist of 1 job) (i) 33kV HT VCB, 800 Amps, make: Crompton Greaves - 3 panels. (ii) 11kV HT VCB, 1250 Amps -3nos, 630 Amps -7nos, make: Alind - 10 Panels..

First year

Second year

Third year

Repairing and servicing of following Gang Operated Air break switch (GOAB) set by replacing the damaged fixed/moving contracts, mechanical parts, insulators, rusted bolts and nuts, lubricating the moving parts etc. as required. (i) 33kV GOAB switch, 800 A, Short time current for 1 sec-31.5 kA rms -1 set. (ii) 11kV GOAB switch, 800 A, Short time current for 1 sec - 20KA rms -7 sets.

First year

Second year

Third year

Testing, calibration of relays (as per Annexure-B) provided on the 33kV and 11kV VCB panels by secondary injection method with suitable valid calibrated test kit in line with Kerala State Electrical Inspectorate guidelines including submission of calibration of report etc. as required. The calibration shall be carried out through KSEBL

1st year-

2nd year

3rd year

Spray painting of following electrical panels (HT/LT), Transformer, Dipole structures, with emulsion paint of required colour of (2 coat) approved brand including cleaning etc. as required. All push buttons, meters, relays, name plates, indicators, insulators, lighting arrestors, earthing points etc. shall be clean, functional and free from paint etc. complete as required.

5MVA, 33kV/11kV Transformer

33kV HT VCB (3 Panels)

11kV HT VCB (10 Panels)

LT panels

250kVA,11kV/0.415kV Transformer

33kV and 11kV DP structure (Provided in the yard) including cable supports.- 8 nos

Supply and replacement of dry Silica gel for 2nos of 5MVA and 1no of 250kVA transformer.

Supply of following spares of 33kV Crompton Greaves make, 3 Panel, HT VCB, rating - 800 Amps.

Closing coil-220 V AC

Shunt trip coil-110 V DC

Digital Ammeter-400/5+5Amp, Accuracy class-0.5, size-96mmx96mm. Make: L&T /Rishab

Digital Volt meter, VTR - 33000/110V, size 96mm x 96mm, class-0.5, Aux voltage: 110 DC. Make: L&T/Rishab

Current Transformer, Resin cast CT ratio-400/5,+5A, Core -1, 15VA, CL10P10, Core-2,15VA, 0.2. STR - 26.3kA/1sec. Make: CG

33kV with VT fuse, 3.1 Amps

Contact assembly set 33kV, VCB (Fixed and Moving) - 800Amps for R,Y,B)

Supply of following spares of 12kV Alind Switchgear make, 10 Panel, HT VCB Type-DNL-D rating1250Amps/630Amps.

Closing coil-110V DC

Shunt trip coil-110V DC

Analogue Ammeter-Dual range-(0-400) & (0-200) A Rating -5Amps, Accuracy class-1, size - 96mmx96mm. Make: MECO

Digital Volt meter (0-15kV) size 96mmx48mm, Make: MECO

Current Transformer, Resin cast CT ratio - 400-200/5-5A, Core-1: 1.5VA, 5P10, ALF: 10, Core-2, 10VA, 0.5s. Make: Intrans

Contact assembly set 11kV, VCB (Fixed and Moving) -630A for R,Y,B)

Contact assembly set 11kV, VCB (Fixed and Moving) -1250A for R,Y,B)

Siemens make Master Trip Relay, 7PJ1212-6EB01-0AA0, 110VDC/4NO+1NC

Supply of Lightning arrestor ,9kV,10KA Station Class ,,Cass-II, Porcelain make

Providing of 1 Sport Utility Vehicle (Scorpio, Xylo or Innova) Air conditioned, with Driver (General Shift), fuel and consumables for 2000km per month including Sundays and holydays for carrying out periodic inspection of various installations covered under the contract and other maintenance co-ordination works as per special conditions of contract etc. complete as required. (Maximum rate shall be only Rs.43,200/- as per SCC clause no.2.x on SCC page no.2)

GERESH ELECTRICALS PVT. LTD