NIT No. 03 (25-26) Item No. 11

REPAIR & RENOVATION OF APFC PANEL: 03 Nos. Dismantling of defective capacitor units from the APFC panel after suitably discharging the left-over charge on capacitors to ensure safety of the working persons along with dismantling of APFC relay, indications lights, meters, A/M switches, MCBs including dismantling of terminations and existing hardware and rusted parts and various other items requiring change in the panel as required at site

Replacement of triple pole capacitor duty contactor - 15 KVAr in place of defective contactor of APFC panels. Make: - Standard

Replacement of triple pole capacitor duty contactor - 50 KVAr in place of defective contactor of APFC panels. Make: - Standard

Supply of APFC relay, microprocessor based to replace defective APFC relay with digital display of power factor and other parameters to sense power factor through control CT and give phased impulses to contactor coils for switching ON-OFF required number of capacitors as per requirement to achieve target power factor. Make: - STANDARD

Supply of capacitor units of various capacities, rated at 440v, 3 phase, 50 Hz system complete with terminal cover, cable end entry, mounting structure, and hardware etc. Make: - STANDARD

Banking of capacitor units to form banks of suitable rating by electrical interconnection using aluminum bus bars or copper multistrand cables with lugs, tapes etc. to form banks as per requirement of various capacitor banks

Replacement of 25 A, triple pole MCB in place of defective MCBs of APFC panels. Make: - Standard

Replacement of 32 A, triple pole MCB in place of defective MCBs of APFC panels. Make: - Standard

Replacement of 63 A, triple pole MCB in place of defective MCBs of APFC panels. Make: - Standard

Replacement of colling fan of 6" X 6" size for place of defective fans of APFC panels. Make: - Rexnord

Replacement of Auto Manual to place defective Auto Manual. Make: L&T

Supply of LED indication lights of various colors to replace defective/burnt out lights. Make: - Standard

Power wiring with 10 Sq. mm for connection between capacitors and bus bar with copper lugs and necessary hardware etc. as required at site.

Installation of all above components in the existing capacitor banks with suitable fabrication work to accommodate new items in the existing enclosure/ structure for alignment of components and ease of termination complete with hardware on the mounting structure and termination of existing cables with lugs, tapes etc. complete with earthing of the capacitor banks, touching the rusted parts of the structure with paint for protection from moisture etc. as required at site.

Servicing of APFC panels including complete dusting of the panel, cleaning of contact points, decarbonizing of joints, alignment of doors, checking of all nuts & bolts control circuit and power circuit wiring dressing and renovation of control and power terminations with lugs tapes etc. as required at site.

Testing & commissioning of APFC panel as per required parameters including following: (i) Meggering of complete capacitor installation using 500 V megger. (ii) Continuity test for checking continuity of all circuits. (iii) Programming of APFC relay for target power factor. (iv) Monitoring of power factor as per specified parameters.

STANDARD CAPACITORS (BID ID -1585510)