NIT 17 Item 3 Re Invited

Dismantling of defective components like capacitors, relays, contactors, lights, fuses etc. from APFC panels including dismantling of terminations, wirings, hardware, as required at site

Supply of Heavy duty Round type capacitors of various capacities rated at 440V, 50 Hz, 3 phase AC complete with terminal cover and discharge device to replace defective capacitors in APFC panels as per requirement of each stage of the panel – make standard

Banking of capacitor units to form banks of suitable capacity by electrical interconnection with multistrand copper wires/aluminium bus bars using necessary hardware, lugs, tapes etc. as required at site

Supply of microprocessor bases APFC relay with digital display of power factor and other parameters to sense the power factor and give phase impulse to contactor coils for switch On and OFF required no. of capacitors to achieve the target power factor set on the relay-make standard

Supply of capacitor duty contactors suitable up to 50 kVAr capacitors to replace defective contactors as per requirement of stages. Capacitor duty contactor control the starting in-rush of current and save capacitors from the surges-make standard

Supply of 125 A TP MCCB to replace blown out fuse and fuse base as MCCB give better protection and prevent single phasing of capacitor units in stages as per requirement of site-make Standard

Supply of indication lights of various colours to replace defective indication lights, as per requirement of capacitor stages and main RYB indication etc. as required at site Make-FTC/Standard/Teknik

Installation and connection of various components as described above in APFC panels using necessary hardware, mounting arrangement and termination with multistrand copper wires, lugs and tapes etc. as required at site

Servicing of APFC panels including complete dusting of all components decarbonizing of contactor contacts, tightening of all nut bolts, dressing of control & powerwiring, alignment of doors to prevent ingress of moisture and dust & vermin for safety of the equipment installed in the panel. Removing rust of touching of all rusted parts to prevent damage to sheet steel housing of the panel etc. as required at site

Testing and commissioning of APFC panels per required parameters including following as per requirement of power supply authority: i) Meggering of all equipment for phase to phase, Phase to neutral and phase to earth to check insulation of the system for achieving safety ofman power ii) Setting of APFC relay for target power factor as per specified requirement iii) Conducting all function tests to check efficacy of the system and proper functioning for switching of contactors on receiving signals from sensing CT installed in the main line. iv) Monitoring of power factor to achieve average target power factor

bhawani electrical system