|
| 1 | Following work is required for smooth operation of cooling fan installed on various transformers at 132 KV S/S Aurai, 132 KV S/S Kachhawa, 132 KV S/S Gopiganj & 132 KV S/S Bhadohi . The details of work listed below. | Following work is required for smooth operation of cooling fan installed on various transformers at 132 KV S/S Aurai, 132 KV S/S Kachhawa, 132 KV S/S Gopiganj & 132 KV S/S Bhadohi . The details of work listed below. |
| 2 | Supply and fixing of 01 no Rotary incoming supply switch of 3P/4W, 415V AC, 16 A rating and 01 no MCB of 4 pole, 415 V, 16 A rating for 3 phase incoming supply for cooling fans. | Supply and fixing of 01 no Rotary incoming supply switch of 3P/4W, 415V AC, 16 A rating and 01 no MCB of 4 pole, 415 V, 16 A rating for 3 phase incoming supply for cooling fans. |
| 3 | Supply and fixing of 01 no, 415 volt AC , 16 A, Cooler control selector switch for Auto/Mannual/Off selection of cooling fans. Work includes proper connection of both auto/mannual circuit wire connection as per drawing in the marshling box. | Supply and fixing of 01 no, 415 volt AC , 16 A, Cooler control selector switch for Auto/Mannual/Off selection of cooling fans. Work includes proper connection of both auto/mannual circuit wire connection as per drawing in the marshling box. |
| 4 | Supply and fixing of fan control contactors of rating 230v,9A as per sample for auto function of cooling fans with relays of rating 230 V, 9A, 02 NO+02NC for supply monitoring for cooling fans. | Supply and fixing of fan control contactors of rating 230v,9A as per sample for auto function of cooling fans with relays of rating 230 V, 9A, 02 NO+02NC for supply monitoring for cooling fans. |
| 5 | Supply and fixing of 03 no time delay relay (ON DELAY), of rating 230 volt, as per sample ICO for fan failure indication and stand by fan on indication of standard make. | Supply and fixing of 03 no time delay relay (ON DELAY), of rating 230 volt, as per sample ICO for fan failure indication and stand by fan on indication of standard make. |
| 6 | Supply and fixing of 08 no fan control switches for on/off control of fans (ON/OFF) of ratings 415 V, 10A of standard make. | Supply and fixing of 08 no fan control switches for on/off control of fans (ON/OFF) of ratings 415 V, 10A of standard make. |
| 7 | Supply and fixing of fan control contactors of type 3TF30 and rating 230 V,9A,6NO+2NC as per sample for control operation of cooling fans of standard make. | Supply and fixing of fan control contactors of type 3TF30 and rating 230 V,9A,6NO+2NC as per sample for control operation of cooling fans of standard make. |
| 8 | Wiring of all interconnection with proper ferrules and lugs of suitable size with 4 mm2 flexible insulated copper conductors for power connection and with 2.5 mm2 flexible insulated copper conductor for control connection in the marshaling box. Work includes supply and fixing of cable gland( 19mm dia), wire, rail base, ferrule, lugs as required for proper operation of marshaling box. | Wiring of all interconnection with proper ferrules and lugs of suitable size with 4 mm2 flexible insulated copper conductors for power connection and with 2.5 mm2 flexible insulated copper conductor for control connection in the marshaling box. Work includes supply and fixing of cable gland( 19mm dia), wire, rail base, ferrule, lugs as required for proper operation of marshaling box. |
| 9 | Supply and fixing of overload relay (Type 3US5000) of rating (0.5-2A) as per sample for cooling fan of transformers on the front side of the marshaling box. | Supply and fixing of overload relay (Type 3US5000) of rating (0.5-2A) as per sample for cooling fan of transformers on the front side of the marshaling box. |
| 10 | Preparation of Interconnection drawing & Modification in marshaling box, wiring for new control and switching equipment to be installed in the cubical box. The work includes submission of drawing, Connection/ Termination as approved by department. (In 3 copy) | Preparation of Interconnection drawing & Modification in marshaling box, wiring for new control and switching equipment to be installed in the cubical box. The work includes submission of drawing, Connection/ Termination as approved by department. (In 3 copy) |
| 11 | Repairing and rewinding of 3 phase 415V 1400 rpm, 240W, AC cooling fan motor of various T/Fs under ETD-IV Varanasi. The work includes opening and dismantling the motor, rewinding the motor by new copper wire of suitable size, replacement of its bearing by new one of same design, reassembling the motor with complete accessories and refixing the same on T/F. The works include the cost of material and T&P required to complete the job satisfactory. | Repairing and rewinding of 3 phase 415V 1400 rpm, 240W, AC cooling fan motor of various T/Fs under ETD-IV Varanasi. The work includes opening and dismantling the motor, rewinding the motor by new copper wire of suitable size, replacement of its bearing by new one of same design, reassembling the motor with complete accessories and refixing the same on T/F. The works include the cost of material and T&P required to complete the job satisfactory. |
| 12 | Replacement of bearing/bush alongwith Oiling and greasing of cooling fan including all the labour, T&P and material. | Replacement of bearing/bush alongwith Oiling and greasing of cooling fan including all the labour, T&P and material. |
| 13 | Providing & Fixing of Silica gel breather of polycarbonate container 5Kg capacity suitable for main conservator tank of 63/40 MVA T/F as per sample | Providing & Fixing of Silica gel breather of polycarbonate container 5Kg capacity suitable for main conservator tank of 63/40 MVA T/F as per sample |
| 14 | Providing & Fixing of Silica gel breather of polycarbonate container 1Kg capacity suitable for main conservator tank of 63/40 MVA T/F & 250 KVA sub-station transformer as per sample | Providing & Fixing of Silica gel breather of polycarbonate container 1Kg capacity suitable for main conservator tank of 63/40 MVA T/F & 250 KVA sub-station transformer as per sample |
| 15 | Providing & Fixing of Silica gel breather of polycarbonate container 0.5Kg capacity suitable for OLTC tank of 63/40 MVA T/F & 10 MVAR capacitor bank as per sample | Providing & Fixing of Silica gel breather of polycarbonate container 0.5Kg capacity suitable for OLTC tank of 63/40 MVA T/F & 10 MVAR capacitor bank as per sample |
| 16 | Providing and fixing of VSP D2 for single phasing/UV/OV protection (Aux. 220V AC) Make Siemens/L&T/Minilec. | Providing and fixing of VSP D2 for single phasing/UV/OV protection (Aux. 220V AC) Make Siemens/L&T/Minilec. |
| 17 | Providing and fixing of Contactor for single phasing/UV/OV control (230V AC/9 Amp.) Make-Schnider/Siemens/L&T | Providing and fixing of Contactor for single phasing/UV/OV control (230V AC/9 Amp.) Make-Schnider/Siemens/L&T |
| 18 | Supply and fixing of Oil temperature indicator (analog type) of temp range from (0-150) 0C, 5A, AC/DC both and consist of two flexible capillary tubes of 05 meter long and 02 no mercury bulb switch for alarm & trip of power transformers of standard make. Work includes fixing of capillary inside the temperature sensing element within the tank and proper termination of connection at both ends. | Supply and fixing of Oil temperature indicator (analog type) of temp range from (0-150) 0C, 5A, AC/DC both and consist of two flexible capillary tubes of 05 meter long and 02 no mercury bulb switch for alarm & trip of power transformers of standard make. Work includes fixing of capillary inside the temperature sensing element within the tank and proper termination of connection at both ends. |
| 19 | Spray, painting of 40 MVA , 132/33 KV, T/F with one coat of red oxide primer and two coats of standard make Asian/Burger/Nerolac smoke gray synthetic enemel of 1st quality. | Spray, painting of 40 MVA , 132/33 KV, T/F with one coat of red oxide primer and two coats of standard make Asian/Burger/Nerolac smoke gray synthetic enemel of 1st quality. |
