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| 1 | Supply & fixing of winding temprature indicator (analog type) of temp range from (0-150) OC, 5A, AC/DC both and consist of two flexible capillary tubes of 05 meter long and 04 no mercury bulb switch for alarm, trip and cooling control system 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 end. |
| 2 | Supply and fixing of Oil temperature indicator (analog type) of temp range from (0-150) OC, 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. |
| 3 | Supply and fixing of 01 no,415 volt, 16 A,4NO, contactor for main supply of cooling fans installed on 40 MVA T/F. Work includes proper connection of contactor with ACDB or AC cubical installed in the switchyard. |
| 4 | Supply and fixing of 02 no fan control contactors of rating 230v,91,08 NO, for auto function of cooling fans. |
| 5 | Fixing of 01 no, 3 pole MCB of rating 230 V, 2A, on the rail fixed on the front side of marshaling box. |
| 6 | Supply and fixing of 02 no overload relay (Type 3US5000) of rating (0.5-2A) for cooling fan of transformers on the front side of the marshaling box. |
| 7 | 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. |
| 8 | Supply and fixing of 02 no time delay relay (ON DELAY), of rating 230 volt, ICO for fan failure indication and stand by fan on indication of standard make. |
| 9 | Supply and fixing of 04 no fan control switches for on/off control of fans (ON/OFF) of ratings 415 V, 10A of standard make |
| 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) |
| 11 | Providing and fixing of terminal block (B3/M3 stud type) of rating 415 V, 32A, for interconnection of fan control circuit, auxiliary protection (OTI, WTI, Buchholze, OTI, PRV,) from field to relay panel, and also for annunciation for indication of type of faults. All material provided by contractor at his own cost. |
| 12 | Supply and fixing of 01 no, 5 pin socket switch box, 01 no heater switch ON/OFF type, of 230 V,6A, 01 no.230 V,40W heater with metal glad and 01 no thermostat of rating 230V,(0-10000) in side of marshaling box. Work includes proper wiring of given sockets and switches. Please Enable Macros to View BoQ information |
