RMO specialized Electrical and Mechanical Services of Delhi High Court, New Delhi. (SH Providing Safety Backup to Judges LIFT for Zero Downtime during power failure).

Supplying, Installation, Testing and Commissioning of following various capacity 3 Phase Lift Online (ERD) System designed for industrial use incorporates an inbuilt galvanic isolation transformer and advanced using Insulated Gate Bipolar Transistor (IGBT)'s based inverter technology, operating on a true online double conversion architecture controlled by a microcontroller. This system ensures continuous voltage-regulated three-phase input and output for a Generative and Non-regenerative lifts facilitating jerk-free, delay-free elevator functionality with zero transfer time during a mains power failure. It automatically senses input failure and seamlessly supplies uninterrupted power from a precisely rated battery bank for at least 25–30 minutes including providing suitable capacity Sealed Maintenance Free (SMF) Battery Bank for providing at least 25-30min power back with Heavy Duty MS Rack enclosure thermally stable, Copper Interlinks and all other associated equipment shall be included in the scope etc as required.

The ERD is engineered with wide input range voltage tolerance, rapid input fluctuation compensation, active power factor correction, and dual-stage harmonic filtering to maintain output Total Harmonic Distortion (THD) below 3% including electronic overload monitoring, instantaneous short circuit protection, battery management with temperature compensation, and deep discharge protection, an inbuilt manual bypass switch allows for safe maintenance without interrupting operation, Real-time digital display panels show all critical system parameters. System should have Radio Frequency based Bilingual voice guided wireless display unit to announce system is running on Main or backup supply and it also have last rescue trip data logging feature serving as a additional safety and diagnosis parameter to complete the Last call of the Lift and showing the real time status indication of lift Operation etc as approved by Engineer in charge. The ERD unit should be housed in a rugged, powder-coated, CRCA steel enclosure and associated industrial standards to ensure reliability and safety in lift applications.

a) For 4 Nos. Lifts each having 9. 4 KW Motor Drive

b) For 2 Nos. Lifts each having 7.5 kw Motor Drive

c) For 1 Nos. Lift each having 7.5 kw Motor Drive

d) For 2 Nos. Lifts each having 5.5 KW Motor Drive(Generative)

Supplying, Laying and fixing of following sizes of XLPE insulated Copper armoured cable of 1.1 KV grade of following size on wall surface as required.

4 X 16 sq. mm

4 X 25 sq. mm

Supplying and Fixing of suitable sizes MCCB enclosure for 150A/250A MCCB on wall/surface etc as required.