10. Feeders are used There are 28 feeders are connected in this 9(33kv) and 19(11kv) 33 kvFeeders are: khasakothi durgapura mnit lalkhoti spair vidhansabha 22 godam bisalpur sewage form
22. Transformers: Transformer is an electrical machine which works on the principle of electromagnetic induction. It transfers electric power from one electric ckt to other with the help magnetic path(flux) on constant frequency but equal or different current voltages. The winding which is connected to the supply is called primary winding & that winding is connected to the load is called secondary winding. In CHAMBAL G.S.S there are six transformers used.
24. CURRENT TRANSFORMERS: C.T. is an instrument transformer used for protection & metering of high values of currents. C.T. is used for reducing a.c from higher to lower value for measurement/protection/control. There are two classes of C.T: protective C.T measuring C.T current transformer
25. POTENTIAL TRANSFORMERS: Potential transformers are instrument transformers. They have a large number of secondary turns and a fewer number of primary turns. They are used to increase the range of voltmeters in electrical substations and generating stations. Potential transformer
26. Relays: A relay is an electrically operated switch. Many relays use an electromagnet to operate a switching mechanism mechanically, but other operating principles are also used. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits, repeating the signal coming in from one circuit and re-transmitting it to another. Relays were used extensively in telephone exchanges and early computers to perform logical operations.
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