Electrical Works

Design, Supply, erection, testing and commissioning of 2000A draw out type floor mounted MV cubical panel board suitable for operation on 415 V 3 phase, 50 Hz A.C supply, dust and vermin proof and accommodating the following ACB as Incomer unit & Bus-coupler with the following items of work complete to satisfy the latest IE rules and CEIG guidelines with Bus bar chambers, Main switches chambers and cable entry chambers. Bus bar chamber: Supply and fixing of suitable bus bar chamber made up of 16SWG MS sheet steel(1.8mm) with 4Nos. 3” X 1/2” tinned copper bus bar for 3 phases and neutral and of earth bus of size 1” X 1/8" tinned copper bus(25mm x 3mm) on suitable bus bar insulator(Epoxy insulator) with maximum creepage distance and supported on MS Base channel frame work of size 4”X 2”X ¼”–1Set Main Switches Chamber: Incoming 1)Supply and fixing of 1 Nos. 1250 A 4 pole 433V LT ACB confirming to IS13947–2 IEC 60947–2 with suitable capacity and breaking capacity of drawout 50 KA breaking c capacity with all accessories for standard horizontal manual draw out type ACB equipped with auxiliary contacts and all accessories for closing and opening operation with Microprocessor Based SR 18 G relay, over current trip device adjustable to LTD, STD and release for over current protection UV release with time delay, EF release short circuit protection, Mains CTs for 3 phases lockout, features, separate mold base for each pole for easy maintenance all relevant protection safety accessories as per CEIG, IE rules in force with inter connection and terminations as required in specification

Buscoupler : 1)Supply and fixing of 1 Nos. 1250 A 4 pole 433V LT ACB confirming to IS13947–2 IEC 60947–2 with suitable capacity and breaking capacity of drawout 50 KA breaking c capacity with all accessories for standard horizontal manual draw out type ACB equipped with auxiliary contacts and all accessories for closing and opening operation with Microprocessor Based SR 18 G relay, over current trip device adjustable to LTD, STD and release for over current protection UV release with time delay, EF release short circuit protection, Mains CTs for 3 phases lockout, features, separate mold base for each pole for easy maintenance all relevant protection safety accessories as per CEIG, IE rules in force with inter connection and terminations as required in specification

Outgoing 1. 400A MCCB — 3 Nos 2. 250 A MCCB - 2 Nos. Inter connecting the all LT ACB’s and Switches to bus bar with suitable insulated tinned copper flats and painting/PVC sleeve color coding of phases and neutral indication. Double Earth connection of the switches and ACB’s to earth bus using suitable tinned copper flats by 2 runs of 1” X 1/8”. Supply and fixing of RYB LED lamp arrangements with toggle switches to control each phases and with rigid connection in suitable separate compartments within the cubicle as per CEIG rules with 1set, Supply and fixing of danger board with Siemens grey powder coating with super scribing the names of places to which supply is fed feeder sizes of cables direction of cables etc. Erection of panel board complete with suitable foundation bolts and nuts including suitable M.S Channel, concreting ,testing and commissioning (L&T, SIEMENS,ABB)

Design, Supply, erection, testing and commissioning of 600A floor mounted MV cubical panel board suitable for operation on 415 V 3 phase, 50 Hz A.C supply, dust and vermin proof and accommodating the following MCCB as Incomer unit & Bus-coupler with the following items of work complete to satisfy the latest IE rules and CEIG guidelines with Bus bar chambers, Main switches chambers and cable entry chambers. Bus bar chamber: Supply and fixing of suitable bus bar chamber made up of 16SWG MS sheet steel(1.8mm) with 4Nos. 2.5" x ¼ ’' tinned copper bus bar for 3 phases and neutral and earth bus of size 1” X 1/4 tinned copper bus(25mm x 6mm) on suitable bus bar insulator(Epoxy insulator) with maximum creepage distance and supported on MS Base channel frame work of size 40mm x 40mm x 6mm–1Set Main Switches Chamber: Incoming 1)Supply and fixing of 1 Nos. 400 A 4 pole 433V LT MCCB confirming to IS13947–2 IEC 60947–2 with suitable capacity with all Spreader Terminals and Operating Handle for Manual operation and easy maintenance all relevant protection safety accessories as per CEIG, IE rules in force with inter connection and terminations as required in specification

Outgoing 1. 250 Amps 4 Pole MCCB — 3 Nos Inter connecting the all Incomers and Outgoing Switches to bus bar with suitable insulated tinned copper flats and painting/PVC sleeve colour coding of phases and neutral indication. . Supply and fixing of RYB LED lamp arrangements with Metering and toggle switches for Both Incomer and interlocking the same with 5 Lock 2 Key system and with rigid connection in suitable separate compartments within the cubicle as per CEIG rules Supply and fixing of danger board with Siemens grey powder coating with super scribing the names of places to which supply is fed feeder sizes of cables direction of cables etc. Erection of panel board complete with suitable foundation bolts and nuts including suitable M.S Channel, concreting ,testing and commissioning (L&T, SIEMENS,ABB)

Supply and erection of 100 KVAR 415/440Volts 50Hz 3 Ph automatic power factor correction panel, 8 stage, (at 0.95 lag), made up of powder coated, 14/16 SWG CRCA sheet steel enclosure with 1 1/2" x 1 1 1/2" x 1/2" AI Frame work with RCC concreting foundation and bolted to masonry pedestal with 250A TPN MCCB as incoming (L&T/Siemens/C&S) with Delta Connected capacitors (BCH/EPCOS) MOO Type operating in multiple stage with 3 current and Voltage Transducers (CVT) at the phases simultaneously to activate the desired power factor switching time between steps 120 seconds, switching off time in case of fault 3 seconds with a LCD display to show the following Parameters. a. Vr – R phase Line Voltage b. Vy – Y phase Line Voltage c. Vb – B phase Line Voltage d. Ir – R phase Line current e. Iy – Y phase line current f. Ib – B phase Line Current g. KW – Present Kilo Watts h. RKVA – Present KVAR Demand i. KVA – Present KVA j. PF – Present Power Factor k. Number of Capacitor bank ON/OFF

l. Provision to indicate the imbalanced load provision to indicate the change in phase Sequence n. The APFC Panel Should also have built in protection for current imbalance. For high Voltage/Low Voltage cut off, single phase Preventer, provision for inductor coil to cater the in-rush currents, line surges, Current Limiters, Current Sensor, etc., with connection complete and as per the relevant IE Rules. Eight Stages of Automatic Power Factor control panel with necessary connection.

Supply and installation of 2.5mm thick Rubber Mat with ISI suitable for 1.1KV installation confirming to IS 15652

Supply of hand gloves 11 KV grade

Supply and installation of Danger Board as required by the electrical authorities

Preparation of site plan physical layout electrical schematic diagram in 5 sets , getting drawing approval from CEIG preparation of completion report, rectification report and arranging CEIG inspection and obtaining CEIG safety certificate

Renewal by Supply, fabrication and fixing of M.S chequered plate with the suitable angle iron frame in the sub-station panel room trenches suitable at site of size 2.6 ft x 2 ft x 6 mm each

Supply of 11 Kv Current Transformers (C.T) Resin Mould Type Single Phase Fixed Type in the existing RMG Metering Core: Ratio : 70/5 Amps Class: 0.2 S, Burden: 5 VA Protection core: Ratio : 70/5 A Amps Class: 5P 20 Burden: 15 VA Make : Cortina/Ohms

Supply, fixing and testing of New microprocessor based protection relay for 11KV HT VCB, with following specifications, including making necessary panel alteration for fixing the new relay and necessary interconnections with materials. Dry contact/5A Continuous/250 Vac Short Duration capacity 25 A for 3 Secs Operation time-< 10ms Making Capacity 150 A for 30 ms 3 Phase O/C+E/F+High-set Numerical Relay with Low-set, High-set for O/C and ELF Time Characteristics available-TMS:0.1-1.6 Step 005

Supply and fixing of "86" Master Trip Relay in the 11 kV HT VCB panel with 1 No/NC 110 V DC

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