RMG Panel (HT Line) in GH at Sriperumbudur

RMG Unit : Supply, Erection, testing and commissioning of 11KV 25 KA 630Amps 3 Panel HT OUTDOOR RING MAIN GEAR Switch board suitable for indoor installation comprising two incomer panels with Air Break/ load Breaks switches and one outgoing panel with Vacuum Circuit Breaker complete as per specification with Mechanical inter lock between incomers (1)Supply and Erection of draw out type 11KV 25 KA 630 Amps Horizontal draw out./Horizontal Isolation VACCUM CIRCUIT BREAKER fitted with motor ( 230 V AC) operated spring charged Mechanism, with ON and Off mechanical indicator Anti pumping Device, 110V DC shunt trip and closing coils ( DC source of supply to be derived from a power pack suitable for three Tripping and two closing operations incorporated on Incoming panel only) Mechanical Operation counter, 4 No + NC spare Aux contact with contact multiplication contractor for customer use. Automatic safety shitter, Mechanical close/Trip Knob, Mechanical ON/OFF Indication, operating Handle, 230V AC to 110V DC power pack operating handle, (2)Supply and Erection of 11KV 630 Amps 25 KA HT Air Break/Load Break switch with mechanically inter locked each switch, front operated spring assisted manual closing mechanism 2NO + 2NC Aux. contact (3)11 KV /Root 3/110V Root3-Three phase 3 Limb 50 VA class 0.2 Resin cast Draw out type potential Transformer complete with HT and LT HRC fuses with sealing arrangement – 3Nos, (4)Current Transformer of suitable Ratio/5-5A Dual core ( Core1-5VA clas 0.2 for metering & crore 2-15 VA 5 P 20 for protection – 3Nos, (5)Meters: Analog Ammeter with 5 position selector switch-1no Analog Voltmeter with selector switch-1No cut out provision to receive digital Tri Vector Meter L & T or secure to be provided.,

Indoor Three Panel Consumer VCB: Supply, erection, testing, commissioning and of 11KV 25KA HT Three panel Vacuum Circuit Breaker Switch, Indoor type for installation, board comprising one Incomer VCB and 2 Nos Outgoing 630A 500MVA VCB.1.Draw out type 11KV 500MVA 630A Horizontal Draw out/ Horizontal Isolation VCB operated with spring charged mechanism.Anti Pumping device ,110V DC Shunt Trip and closing Coils (DC source of supply to be derived from a Power pack suitable for 3 Tripping and Two closing operation counter, 4NO + 4NC spare Aux. Contact for customer use, Automatic safety shutter, Mechanical Close/ Trip knob, Mechanical ON/OFF indication, Operating Handle, 110V AC-110V DC Power Pack etc. (Incom-1 & Outgoing-2Nos) Core(Core 1-15VA class 1 for metering and core 2-15VA 5P 10 for Protection) Incoming 1 No, Current Transformers of 30/5-5 Amps Dual Core (Core 1-15VA Class 1 for Metering and Core 2-15VA 5P 10 for Protection)(Outgoing-1) 4.Meters: 2. 11KV/Root 3/ 110V/ Root3- Three Phase, 3 Limb 200VA Class 1 Resin Cast Draw out type Potential transformers complete with HT and LT HRC fuses. (Incoming-1 No) Digital Voltmeter with selector switch (Incoming 1 No) Digital Trivector of L&T/Secure make (Incom-1No) Digital Power Factor Meter (Incom-1 No) Digital Frquency Meter (Incom-1 No) 5. Protection: TP ND IDMT 2OC + 1EF Relay with Highest inst.Elements similar like Megawin type MCDG 61 (Incom-1No) 6. TP ND IDMT 2OC + 1 EF Relay similar like Megawin type MCDG 31 Master trip Relay Megawin MVAJH 13 (Incom-1No & Out-1 No) 7. Breaker ON/OFF/Auto Trip/Healthy/Spring Charged Indication Lamp LED Type,

Type ONAN type Transformer: Supply, erection, testing and Commissioning of 630 KVA 22KV/ 433V,copper wound off load tap changing copper wound Indoor type distribution transformer ONAN type of cooling conforming to relevant IS 1180- Level 2 and fitted with the following and standard accessories. (A) HV cable end box suitable for connecting 3 core 300 sq.mm11KVXLPE HT cable. (B)LT Cable end box suitable for connection 4 runs of 3 ½ x 300 sq.mm LTUG cables. (C)Tapping on primary winding for voltage variation +5%to -5% steps 2.5%. (D)Neutral on L.V. side, (E) The transformer should be supplied with first filling of oil All removable covers shall be provided with weather proof, hot oil resistant, resistance gasket to prevent leakage of water into core and oil from the tank (Make: Voltech/ CREL or equivalent).

Design, Supply, erection, testing and commissioning of 1250A MV 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 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 3” X 1/2” tinned copper bus bar for 3 phases and neutral (75mm x 12mm) and 2 Nos. of 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 18*3*2–1Set. Main Switches Chamber: Incoming (1)Supply and fixing of 1 No. 1250A 4pole Draw out ACB of Microprocessor board EDO Type ( Cat. no:SL96074) basic rating 4 pole 433V LT ACB confirming to IS13947–2 IEC 60947–2 with suitable capacity and breaking capacity of drawout 65 KA breaking 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.

Supply and erection of 400 Amps capacity dust and vermin proof cubical panel board size of 5'X 5' X 2' made up of 16 SWG CRCA sheet steel for outer body, with doors, switch supports and seperations etc., and with supply and fixing of the following interior switch with bus bar chamber complete with Bus Bar (a) 25 X 12 mm tinned cu. Flat for 3 phase , neutral and (b) 25 x 10mm tinned cu flat for Inter connections (c) 25 x 6mm tinned cu flat for earth connections with bus bar insulators complete with the following tinned Cu flat should be used between busbar and switches for interconnection Interconnection of bus bars : (1)400A TPN switch bus bar for Interconnection 25mmX12mm copper flat, (2)315A & 250A TPN switch bus bar for Interconnection 25mmX10mm copper flat, (3)125 A TPN outgoing switch disconnector fuse units 25mm X6mm tinned cu. Flat supply and fixing of KWh meter (Submeter) & indication lamps. The panel should be fabricated as per IE rules & CEIG specification.The housing accommodate the following switches. Incoming Switch : (1)400 A TPN Incoming switch disconnector fuse units interior only with HRC fuses double break- 1 Nos, Outgoing Switch Switches : (3)315A A TPN Incoming switch disconnector fuse units interior only with HRC fuses double break- 2 Nos, (2)250A A TPN Incoming switch disconnector fuse units interior only with HRC fuses double break- 2 Nos, (3)125 A TPN outgoing switch disconnector fuse units interior only with HRC fuses double break-3 Nos. The panel board should be painted with two coats of high quality epoxy paint over one coat of red oxide primer with superscriptions. (lettering and numbering) The above cubical panel board rest on suitable angle iron base.

400A DG ATS Panel Spec:- 400A Motorized Changeover (ATS)– 01No, Auto/ Manual selector- 01No, Voltage Monitoring Relay– 1No, Dg Auto Remote Start& Stop Controls- 01Set, Digital VAF Meter with CT-01 Set,12V SMPS Battery Charger-01No, Status Indicator- 01Set, EB/ DG MCB Incomer- 01Set, Outgoing Power Bolted Terminal -01No, Control Accessories- 01Set, 1.6mm MS powder coated Enclosure- 01No,  Control / Power wiring All in One Panel.