HT Supply MV Panel arrangements GMCH Sivagangai

Amount

Supply and erection of 22KV 2 pole structure comprising 2 numbers 33feet with RS Joist of size 200x100x5.7mm centre to centre 10 feet width with tie and support frame by 100x50x6mm RS channels, cross bracings by 50x6mm RS angles with requisite heavy duty clamps, bolts & nuts to support the switch gears,insulators, 0 copper jumpers and accessories to receive and distribute the 22 KV 2Pole structure of consumer side and painting of all metal parts with base coat of red oxide and approved paint one coat each as per engineer in charge with supply and erection of following HT accessories as per I.E rules and CEIG rules and regulations a) 1set 22 KV gang operated double break AB switch complete with connecting rod, operating handle, guides, ets., on 100x50 mmchannel frame. b) 3 Nos lightning arrestor for 22KV system on channel frame c) 1 set (each with 3Nos)DO/HG fuse assembly on channel frame. d) 6 Nos Sufficient number 22KV pin insulators with metal pars on channel frame to maintain sufficient clearance for jumpers as per rules. e) 1Set of 3Nos 22KV strain disc insulators with Metal parts on suitable top channel 100mm x 50mm x6mm to receive the EB supply and to feed 2 Pole structure. Supply and fixing of required cross bracing made of size 50x50x6mm MS angle to keep the structure in stable condition. Providing necessary HT connection and jumper Connection from TNEB structure to consumer 2Pole structure with ACSR conductors “O” HDBC Copper conductor for giving necessary connection and jumpering from stain disc insulators, AB switch, lighting arrestor, HG fuse Through pin insulators and to transformer Bushing etc., complete with colour coding.

5. Protection : TP ND IDMT 2 OC + 1 EF Relay with highest Instt elements similar like mega with type MCDG 61. (Incoming 1 No.) 6. TP ND IDMT 2 OC + 1 EF Relay similar like Megawin type MCDG 31 Master trip replay Megawin MVAJH 13. 7. Breaker ON/OFF Auto trip / Healthy trip / Spring charged indication 8. Phase indicating Lamps R, Y and B (Incoming 3 Nos.) 9. Control wiring 10.800A Copper Bus Bar PVC sleeved and required panel copper earthing. 11. Control Switch TNC 12. Trip Circuit Healthy Push Button 13. Common for Switch gear, MCB’s for AC DC Control Heater ON / OFF Switch with space heater and thermostat single phase switch socket, cubicle illumination lamp, Disconnecting type terminal Block etc. 14. MS sheet enclosure for Indoor Installation Powder Coated with paint shade Siemens Grey. Provision through Bottom entry to receive Incoming or outgoing cable excluding cable glands and cable terminal kit. (Make : System control /Mega win / Pentagon/ Equivalent

Supply, erection, testing and commissioning of 22kV/433V, 500KVA outdoor type oil immersed Distribution Transformer of Dyn11 vector group, ONAN cooling, copper wound with energy efficieny of Level 2 with off circuit with a tapping range of +5% to -5% in 5 steps with standard fittings and accessories (as per IS 1180-Part 1 with Amendment 1 to 4 ) and fitted with the following: a) HT cable end termination box arrangements. b) LT cable end box suitable for connection 3 run of 31/2 x 400 sqmm LTUG cables. c) Conservator with shutt of valve. d) Dehydrating slilicagel breather. e) Conservator drain plug valve. f) Tank drain plug value. g) 4 Nos Plain rollers. h)Thermometer pocket with thermomoter with capillary tubing for maximum reading position. i) Drain plug valve. j) Filter valve. k) Oil filling whole end cap. l) Oil level guage. m) Two body earthing terminal. n)Rating and terminal marking diagram plate. o) Lifting hooks / Lifting eyes / Jacking pad to facilitate movement to transformer and easy ground level. p) Off load hand operated tap changing switch at standby height from ground level. q) Tapping on primary winding for voltage variation +5% to - 5% in 5 steps

r) Neutral on L.V side to be available for 4 wire supply and brought out truf pushing for earthing. s) Air release device. t) The transformer should be supplied with first filling of oil. u) Maximum Total losses for 22kV class transformer at 50% load is 1501 W and at 100% load is 4305 W. v) %Impedance = 4.50 w) 100 / 5 A ratio Tape Insulated Ring Type "BPL" Low Tension Current Transformer (AE make / Eq) with Rated Burden of 15 VA , Accuracy Class of 5P10 in suitable Metallic enclosure for transformer neutral - earth link terminal with necessary connections complete. (Make: ROWSONS / IPL / Kirloskar electric company/Eq).

Construction of Transformer plinth suitable foundation for 500KVA outdoor transformer of size length 1.5m x breadth 1.5m x height 2.0m in the brick work, concrete foundation with cement concrete 1:2:4 with sand cushion all around the foundation for the above equipment with proper alignment.

Supply and providing HT yard link fencing with fixing of 8ft height in RCC concreted pillar of size 0.7f x 0.75ft by excavating the earth with depth of 2ft putting concrete pillar and refilling the earth to make good and fixing of chain link fencing with size of (2"x2")x10SWG galvanised iron wire all around the HT yard with necessary binding wire with ISI earthing. RCC pillar with chain link fencing should be provided for the total area of 48x20ft for seperate the EB yard and consumer supply yard places. HT yard is provided with two gate entries, where one entry for EB side and another entry for consumer side. Each gate is fabricated using 2" GI pipe as outer frame with weldmesh with necessary support. Earthing the fencing by using no.8 SWG copper wire all around the fencing. Earthing of gate by using 25mmx3mm copper flat, filling the yard with 400mm jelly for a height of 0.50feet from ground level to make good.

Desgin, Fabrication, Supply, testing and commissioning of 800 Amps cubical panel floor mounting type dust and vermin proof MV panel board of size 9' x 7' x 3' made up of 16 SWG CRCA sheet steel rated for 433 V, 50 HZ AC supply as per the CEIG guidelines and latest IE rules comprising the following: Main Busbar:- 2 runs of 2" x 1/4" copper flat for 3 phases and 1 run of 1" x 1/4" copper flat for neutral. EB Incomer: 800A, 4 pole, 433V 50kA Thermal magnetic based MDO Air Circuit Breaker with protection and interlock arrangements as per relevant IS with latest amendments - 1 No (L&T/Siemens make) 1. Manual trip push button - 1No 2. Mechanical ON/OFF indicator - 1No 3. Vertical Terminal Adaptors - 3Nos 4. LED indicating lamp-3 Nos 5. Under Voltage Release for 433 volts AC - 1No 6. No/NC auxiliary contacts-2sets 7. CTs suitable for metering - 1 set 8. Digital demand controller- 1No 9. Earth Fault Release Type EF1 (10%, 20% In ) - 1No 10. Over current relay - 1No 11. Shunt Release for 433 volts AC - 1No 12.suitable capacity fuse controls for the systems - 1set 13. Multifunction meter - 1no to display phase voltages, Line voltages, Power factor, Phase current, frequency Separate mould base for each pole for easy maintenance, all relevant protection, accessories, as per CEIG IE rules in force, with interconnection and terminations and required. Outgoing switches:

1. 400Amps TPN interior switch fuse disconnector with HRC fuse double break -4 Nos (L&T / Siemens make) 2. 250Amps TPN interior switch fuse disconnector with HRC fuse double break - 3Nos (L&T / Siemens make) 3. 200Amps TPN interior switch fuse disconnector with HRC fuse double break - 3Nos (L&T / Siemens make) The following tinned Cu flat should be used between busbar and switches: 2"x1/2" tinned cu. Flat for interconnection of 1 No 800A FP incoming ACB and 2"x1/4" tinned cu. Flat for interconnection of 4 Nos 400A TPN outgoing switches, 1"x1/4" tinned cu. Flat for interconnection of 3 Nos 250A TPN Outgoing switches and 1"x1/4" tinned cu. Flat for interconnection of 3 Nos 200A TPN Outgoing switches. The EB supply feeder are to provide with digital multifunction meter with CT, RYB indicator lamp and control fuses switches S&F of danger borad all switches and the ACB's should be given double earth connection by runs of 25x3mm copper flat and two numbers 25 x 3 copper earth bus must be run around the panel as per IE rules. All live parts of the bus switches etc are to be shrouded with suitable 6mm thick hylum sheet and SMC support insulators should be with maximum creep age distance as per IE rules. All the out going feeder, bus bars should be extended for easy termination of LTUG cable and suitable removable type gland. All the copper flats inside the panel should be provided with heat shrinkable sleeves and lead coating in the termination points. The cubical panel should be mounted over the MS channel of size 3" x1 1/2" x 1/2". The cubical panel should be painted with anti corrosive red oxide and with powder coated epoxy paint. The capacity of the switch, cable direction, place of feeding shall be indicated clearly in all the switches. The operation and maintenance manual for the metering instruments and the AB switches shall be handed over to the department without fail.

Supply and erection of 150 KVAR 440Volts 50Hz 3 Phase automatic power factor correction panel, 10 stages, (at 0.95 lag), made up of powder coated, 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/ABB/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 3seconds 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. KVAR – 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 m.Provision to indicate the change in phaseSequence

n. The APFC Panel Should have built in protection for current imbalance. For highVoltage/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. Ten Stages of Automatic Power Factor control panel with necessary connection. Make. (MICRO / EPCOS /or equivalent) Stage wise details: I) Stage : 1 KVAR II) Stage : 2 KVAR III) Stage : 2 KVAR IV) Stage : 5 KVAR V) Stage : 5 KVAR VI) Stage : 10 KVAR VII) Stage : 25 KVAR VIII) Stage : 25 KVAR IX) Stage : 25 KVAR X) Stage : 50 KVAR .

Supply and clamping of 1R x 3C x 185 sq.mm HT XLPE 22 kV (E) aluminium armoured cable (Polycab/Eq) in Existing trench or on wall with MS Clamps.

Supply and laying of 1R x 3C x 185 sq.mm HT (E) XLPE 22 KV (Polycab/Eq) in a trench to be excavated at a depth of 1 metre putting 0.15 mt layer of sand and covering the cable completely with bricks and sand and refilling the earth to make good.

Supply and providing HT Cable Outdoor Termination for 3 core 185 sq.mm 22kV(E) Screened XLPE Cables - EPKT 5363 with necessary accessories and termination complete. (Raychem RPG/Eq)

Supply and Laying of 3Runs of 3½ x 400 sq.mm PVC armoured LT UG Cable in trench to be 0.15mts layer of sand and covering the cable completely with bricks and and refilling the earth to make good.

Supply and clamping of 3Runs of 3 ½ x 400 sq.mm PVC LTUG armoured LTUG cable in a on Existing trench or on wall with MS Clamps.

Supply and fixing of brass cable gland for 3½ x 400 sqmm PVC armoured LTUG cable with earth connection.

Supply and providing cable end termination of 3½ x 400 sqmm PVC LTUG Aluminium armoured cable with necessary aluminium cable sockets by crimping etc. with electrical connection complete

Supply and Laying of 3 1/2 x 240 sq.mm. PVC armoured aluminium LTUG cable in suitable size HDPE pipe in a trench to be excavated at a depth of 0.75 metre and refilling the earth to make good.

Supply and clamping of 3 ½ x 240 sq.mm PVC aluminium LTUG armoured LTUG cable on post or on wall with MS Clamps.

Supply and fixing of brass cable gland for 3½ x 240 sqmm PVC armoured LTUG cable with earth connection

Supply and providing cable end termination of 3½ x 240 sqmm PVC LTUG Aluminium armoured cable with necessary aluminium cable sockets by crimping etc. with electrical connection complete

Earthing as per the ISI specification with an earth electrode of 2.10 metre Class 'B' GI pipe of dia not less than 40mm with copper earth plate of size 125mm x 50mm x 6mm with necessary funneling arrangements with necessary masonry work and with 38mm RCC cover slab for the brick masonry

Supply and run of 25mm x 3mm tinned copper flat with necessary clamps / supports on wall / floor / ground for earth connection

Supply and run of 25mm x 6mm tinned copper flat with necessary clamps / supports on wall / floor / ground for earth connection

Supply and fixing of 65mm (2½") G.I. pipe (Class B) of 6 metre length with 300mm x 300mm x 6mm MS base plate duly welded at the bottom with concreting & masonry work for fixing the post (for cable tray)

Supply and fixing of GI Hot Dip / powder coated 16 SWG cable Tray with 300mm width and 50mm height with suitable clamps and necessary connection complete.

SAFETY ACCESSORIES Supply of AC Chargeable Emergency Lamp 2 x 11W PL Lamp with all connected accessories. (SR)

Supply and fixing of 2m x 1m Rubber Mat suitable for 11 KV installation confirming to IS (5 Nos)

Supply and fixing of First Aid Box complete with all First Aid Medicines.

Supply and fixing of Shock Treatment Chart fixed in glass frame.

Supply and fixing of 4 Nos. Fire Buckets made out of 40 x 40 x 6mm MS Angle.

Supply and fixing of Hand Gloves 11KV Grade.

Supply and fixing of Danger Board as required by the Electrical Authorities.

Supply and fixing of Fire Extinguisher Co2, 4.5 kg. confirming to TAC Norms.

Supply of Earth Discharge Rod.

Preparation of Site plan, physical layout electrical schematic diagram (6 Sets) getting drawing approval from CEIG, preparation of completion report rectification report etc. arranging CEIG inspection, paying CEIG inspection fees, obtaining safety certificate from CEIG and preparation of 1 set of approved drawing and a copy of safety certificate in a neat frame work to be fixed in panel room.

SHREE JAYALAKSHMI ELECTRICALS

ANNAI ELECTRICALS