NIT No. 25 (25-26) Item No. 4

REPAIR/RENOVATION OF APFC Panel 100 kVAr: 01 No. 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 defective Heavy Duty Capacitor units of various capacities with new capacitor units, rated at 440 V, 3 phase, 50 Hz system complete with terminal cover, cable end entry, mounting structure and hardware etc. Make:- Standard

Banking of capacitors of various capacities with multistrand copper wires & lugs /aluminium bus bars and mounting arrangement for parallel connection to form suitable rating capacitor bank

Replacement of defective APFC relay, with new microprocessor based APFC Relay having 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.

Programming of APFC relay for target power factor including setting of various parameters and keeping updated indications of the efficiency of electrical power usage, and improving it for reducing the power losses and avoid penalties from utility companies.

Replacement of defective capacitor duty contactors suitable for 25 KVAr capacitor with new capacitor duty contactor. Make :- Standard.

Replacement of defective capacitor duty contactors suitable for 15 KVAr capacitor with new capacitor duty contactor. Make :- Standard.

Replacement of defective capacitor duty contactors suitable for 10 KVAr capacitor with new capacitor duty contactor. Make :- Standard.

Replacement of defective triple pole MCB of 32 A capacity with new MCB for operation and safety of individual capacitor bank. Make :- Standard.

Replacement of defective/burnt out LED indication lights of various colours with new indication lights. Make :- Standard.

Power wiring with 10 sq. mm multistrand copper wires for connection between capacitors and bus bar using 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 panel 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, Decarbonising of joints, alignment of doors, checking of all nuts & bolts, control circuit and power circuit wiring dressing and renovation of control and power terminations etc. as required at site

Testing & Commissioning of complete APFC Panel installation including following: 01. Meggering of complete capacitor installation using 500V megger. 02. Continuity test for checking continuity of all circuits to ensure that all circuits are properly wired. 03. Checking function and efficiency of various components of APFC panel.

Monitoring of Power Factor during warranty period including checking of efficiency of capacitors and other equipment to ensure that APFC panel is working to its highest capacity for achieving target power factor.

REPAIR RENOVATION OF LT STARTER PANEL. Dismantling of defective components from the LT panel after suitably checking live parts to ensure safety of the working persons along with dismantling of Timer, Contactors, MCCB, single phase preventor, MCBs including dismantling of terminations and existing hardware, rusted parts and various other items requiring change in the panel as required at site.

Supply of triple pole Contactor model MNX -95 of L&T make or equivalent item of Schneider, Havells make to replace defective Contactor in the LT panel.

Supply of triple pole Contactor model MNX -70 of L&T make or equivalent item of Schneider, Havells make to replace defective Contactor in the LT panel.

Supply of Over Load Relay. Make - L&T/GIC

Supply of Timer to replace defective Timer in the LT panel. Make - CIC

Supply of Single-Phase Preventer (PSR) to replace defective Single-Phase Preventer in the LT panel. Make - GIC

Supply of LED indication lights of various colours to replace defective/burnt out lights make -standard

Painting of the panel including treatment with electrical solution for removal of rust etc. rubbing for clearing rusted particles, applying the coat of primer & thereafter spray painting with matching paint shade to ensure uniformly.

Control wiring with 1.5 sq mm for connection between contactor and timer & Bus bar with copper lugs and necessary hardware etc. as required at site.

Power wiring with 16 sq mm for connection between Contactor and MCCB & bus bar with copper lugs and necessary hardware etc. as required at site.

Servicing of LT panel including complete dusting of the panel, cleaning of contact points, Decarbonising 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

Fixing of all above components in the LT panel with suitable fabrication work to accommodate new items in the existing feeders for alignment of components and ease of termination complete with hardware etc. as required at site

Testing & commissioning of LT Stater Panel as per required parameters including following :- i. Continuity and earth test, ii Programming of Electronic Motor Protection Relay. ii. Meggering of all equipment's for phase to phase and phase to earth. iii. Checking of tightness of all nut and bolts. iv. Monitoring of power factor