Chennai Metropolitan Water Supply And Sewerage Board-CMWSSB has published Tender For Supply, Delivery, Erection, Testing And Commissioning Of 11Kv Ht Draw Out Vcb Type New Rmg Unit, Load Break Switches, Earthing And Its Allied Works At Adyar Ht Relay Pumping Station In Area Xiii. Submission Date for this Tender is 22-01-2024. Electrification Work Tenders in chennai Tamil Nadu. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Supply and delivery of 11KV HT, 630A, 25KA Instrumentation panel made up of 14SWG sheet metal with necessary fabrication works including powder coating with approved shade colour, safety grills, etc., complete as per the following specification: Current Transformer Single phase, Resin Cast, Dry Type Current Transformer Core 1: for meter - Class - 0.2s, 7.5VA Core 2: for protection - Class - 5P10, 7.5VA Metering & Protection 1. 96 sq.mm Digital Voltmeter Ammeter with Inbuilt Selector Switch 2. Numerical Non-directional IDMT combined 3 O/C+1 E/F relay with highset (110 DV, 5A), High speedMaster trip relay (110V, 5A) Indication Lamps VCB OFF/ON/Auto trip/Trip circuit healthy/Spring charge, R,Y,B Phase indication lamps - LED Control Switches / Push Buttons Breaker Control Switch (Close-Neutral-Trip) Local Remote selector switch Flush Head type Trip Circuit Healthy Push Button Floor mounted Cubical panel Heater ON / OFF switch with filament type 100Watts space heater & thermostat , single phase switch with socket, 9W cubicle Lamp for panel illumination with snap type door limit switch, Fuses / MCBs for AC / DC conrol, MS Sheet steel enclosure, 9KV / 10KA Surge Arrester |
| 2 | Charges towards erection of Floor mounted Cubical type HT instumental panel in the base with necessary MS channels, grouting etc., complete |
| 3 | Supply, delivery & erection of draw out type 11KV HT, 630A, 25KA Vacuum Circuit Breaker (Horizontal Draw Out type) with Manual / Motor operated spring charging mechanism with 230V AC Motor & Control Switch, Mechanical ON / OFF indicator, Operation Counter, Automatic safety shutters & push button. Draw Out Vacuum Circuit Breaker 1.Shunt trip coil - 110V DC 2.Closing coil - 110V DC 3.Spare auziliary contact - 6NO + 6NC Interrupter Compartment 1. Interrupter - 11KV,630A Breaking capacity25KA - 3Nos 2. Epoxy moulded Interrupter Housing - 1 Set 3. 11KV, 630A Bus bar with 11KV epoxy moulded supporing insulator and cluster contacts - 3set 4. Draw In / Out mechanism-1set |
| 4 | Supply of 11kV 630A, 25kA, Load break switch with Earth switch, with 2NO+2NC Aux. Contact ,Spring charged mechanism Manually operated etc., complete Switching Arrangements 11KV, 630A, 25kA. Air Break manual Load Break Switch with Earth Switch and Interlock between Earth switch and Main switch Mechanical ON/OFF indication. Potential Transformer 11KV / 110V HT Potential Transformer Three Phase, Resin cast, Dry type, fixed type potential transformer with Core 1: for meter, Class - 0.5, 50VA ON / OFF mechanism Fixed contacts, moving contacts, operating mechanism, supporting insulators with 630A Capacity Switchgear Heater ON / OFF switch with filament type 100Watts space heater & thermostat , single phase switch with socket, 9W cubicle Lamp for panel illumination with snap type door limit switch, Fuses / MCBs for AC / DC conrol, MS Sheet steel enclosure and Provision for receiving Incoming and Outgoing cables through Bottom entry, Excluding Termination Kit and Glands |
| 5 | Erection of 11KV 630A, 25kA, Load break switch and Earth switch with necessary MS channels / angles including fabrication works as per site condition etc., complete |
| 6 | Charges towards interconnection of Load break switch and RMG uint with necessary bus bars including fabrication works as per site condition etc., complete. |
| 7 | Supply and delivery of 3C X 240sqmm 11KV HT XLPE cable |
| 8 | Laying of 3C X 240sqmm 11KV HT XLPE cable including truff etc., complete |
| 9 | Providing 11KV HT 3C X 240 sqmm end termination kit with socket and necessary insulation materials etc., complete. |
| 10 | Conducting pre-commissioning test on HT VCB by testing of Over current , Under voltage, Earth fault and Instantaneous Master relay using Relay testing kit including Primary and Secondary injection test using loading transformer and Relay testing kit (Group Test) to ensure the healthy of tripping circuits. |
| 11 | Hiring of hack hammer including operator and transportation etc., complete |
| 12 | Providing Copper plate Earthing having 3" dia and 2.5m depth 3mm thick GI pipe along with 600X600X3mm copper base plate including running 2Run of 25/3mm copper Plate on both side of the pipe, Earth work excavation, refilling the earth as per site condition etc., complete. |
| 13 | Supply and laying of 50x6mm Copper Earth plate with necessary fabrication, bending, welding,etc., complete |
| 14 | Providing cement concrete die casted chamber for earth pipe with 600X600x450mm size including door etc., complete as per site condition |
| 15 | Testing the Complete 11KV HT New RMG Unit and commissioning of load etc., complete |
| 16 | Sub Total (excluding GST) |
| 17 | GST @18% |
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