250 KLD STP and RO Plant Electrification Works, Technopark Phase I Campus

Fabrication Supply, installation, testing and commissioning of 250A, LT, floor mounted type, dust and vermin proof, free standing, cubical type construction, made out 14SWG thick CRCA sheet fully compartmentalised with top bus duct/trunking entry with necessary connectors and bottom cable entry for outgoing, duly rust inhibited, degreased, zinc phosphated and powder coating painted with approved colour and quality, complete with hinged and earthed front doors, name plate, danger notice board, heavy duty rubber gaskets, removable gland plates made of 3mm thick sheet steel with CT Digital ammeters with cast resin type CTs and Digital Voltmeter with selector switch or Multifunction meters, indication lamps,high conductivity wrought aluminium busbars with SMC supports, heat shrinkable sleeves etc. all connections and inter-connections, electrical interlocks, including mounting the following switch gears as per SLD with IP54. The panel shall be CPRI tested and shall comply with IEC 61439-1 & IEC 61439-2. Switchgear components (MCCB/MCB/contactors/relays/meters) shall be , with relevant IS/IEC compliance.

Incomer:

SITC of 250A, 36kA or above, microprocessor-based, 4P MCCB with variable settings, along with all accessories including spreader links and extended rotary handle in existing panel.- 1No

Advanced Multifunction meter- Cl 1-1 Nos (Three-phase, 4-wire, 425 V, 50 Hz system, true-RMS digital type meter with the following features: Measures and displays VLL, VLN, A, Hz, kW, kVA, kVAR, PF, Wh, VAh, VARh, VAF, instantaneous and cumulative parameters.Provides High/Low recording of voltage (L-L & L-N), current, power factor, frequency and power parameters with time stamping through in-built Real-Time Clock (RTC). Displays Voltage & Current Total Harmonic Distortion (THD) and individual harmonics up to the 31st order for both voltage and current.Meter shall have programmable CT/PT ratios, auto-scaling, and user-configurable demand interval (1 to 60 min) for kW/kVA demand calculation. Provides maximum demand indication and load-profile/data-logging memory for energy and demand parameters.Supports RTC-based demand management and seamless integration with EMS / SCADA / BMS systems through RS-485 serial communication port using industry-standard Modbus RTU protocol (DLMS optional).Shall include password protection, tamper and event logging, and battery-backed RTC ensuring data retention during power failure.Meter shall be Class 0.5 S accuracy for active energy as per IEC 62053-22 / IS 14697, and conform to relevant IEC/IS standards for multifunction energy meters. The unit shall have a back-lit LCD display, programmable parameters via front keys or software, and be suitable for panel mounting (96 × 96 mm) with auxiliary supply 230 V AC ± 20 %.)

Earth leakage relay of 300mA, 3 Sec - 1 No

CBCT (Core Balance Current Transformer) for ELR

250/5A ,10 VA,Cast resin type ,CL:0.5 ,CT-3 Nos

Outgoings: