Replacement/Retrofitting of ACBs in existing LT panels at Rajiv Gandhi Bhawan, New Delhi.

Amount

Providing and retrofitting of following rating FP EDO ACBs installed in existing LT Panel at substation with all suitable accessories, pre-fabricated (factory cut) Aluminum Bus Bar/links to cater connections with existing Bus-bar, Bus – Bar supports, replacement of Panel front door made of 2 mm thick CRCA sheet steel of ACB feeder along with replacement of Multifunction meter, LED indication lamps, sleeves, gasket, suitable modification in control wiring etc. including testing & commissioning of system and dismantling of existing ACBs, complete as per technical specifications and to the entire satisfaction of Engineer in charge. The specifications of ACBs are as under:- i) Microprocessor release. ii) Fault breaking capacity 65/50 KA (Ics=lcu=Icw for 1.0 secs). iii) Electrical Draw Out Motorized operated, fitted with interlocked door, automatic safety shutters, mechanical ON / OFF and service/ test/ isolated position indicators, operational counter and frame earthing contact. iv) Conforming to IEC/IS-60947-2 1993 as amended up-to-date. v) Independent Electrical & manual spring closing mechanism. vi) Microprocessor release for adjustable over current (Phase & neutral), earth fault & short circuit protection. vii) Shunt trip coil & under voltage coil suitable with 24V DC / 220V AC supply, Breaker Control Switch - 16A, Test terminal block set, circuits as per standard practice, auxiliary contacts (minimum 4NO+4NC) for positive interlocking of the breakers, necessary interlocking with existing PLC/ auto controls. viii) All protection i/e Earth fault, Under/Over Voltage, Under/Over Frequency, Current & Voltage Unbalance, etc. ix) Real-time stamping, On-screen display of measurements, Current : phase / neutral / earth, average, max & % loading, Voltage : Phase, Line & Average. Power and Energy : active, reactive & total, Frequency, Power Factor, Maximum Demand, temperature and with communication port facility etc. Complete as per technical specifications.

Providing and retrofitting of following rating FP EDO ACBs installed in existing LT Panel at substation with all suitable accessories, pre-fabricated (factory cut) Aluminum Bus Bar/links to cater connections with existing Bus-bar, Bus – Bar supports, replacement of Panel front door made of 2 mm thick CRCA sheet steel of ACB feeder along with replacement of LED indication lamps, sleeves, gasket, suitable modification in control wiring etc. including testing & commissioning of system and dismantling of existing ACBs, complete as per technical specifications and to the entire satisfaction of Engineer in charge. The specifications of ACBs are as under:- i) Microprocessor release. ii) Fault breaking capacity 65/50 KA (Ics=lcu=Icw for 1.0 secs). iii) Electrical Draw Out Motorized operated, fitted with interlocked door, automatic safety shutters, mechanical ON / OFF and service/ test/ isolated position indicators, operational counter and frame earthing contact. iv) Conforming to IEC/IS-60947-2 1993 as amended up-to-date. v) Independent Electrical & manual spring closing mechanism. vi) Microprocessor release for adjustable over current (Phase & neutral), earth fault & short circuit protection. vii) Shunt trip coil & under voltage coil suitable with 24V DC / 220V AC supply, Breaker Control Switch - 16A, Test terminal block set, circuits as per standard practice, auxiliary contacts (minimum 4NO+4NC) for positive interlocking of the breakers, necessary interlocking with existing PLC/ auto controls. viii) All protection i/e Earth fault, Current Unbalance, etc. ix) Real-time stamping, On-screen display of measurements of Current : phase / neutral / earth, average, max & % loading, temperature and with communication port facility etc. Complete as per technical specifications.

REGENT SWITCHGEAR

Elbe Engineering Services

RISHA CONTROL ENGINEERS PRIVATE LIMITED

C AND S ELECTRIC LTD

vk sam engineering