Interruption of large currents by relay requires arc suppressing blow out coils, wide separation of the opened contacts, high speed opening of contacts.
What is voltage interruption?
Explain following techniques related to energy conservation in transmission and distribution system. (i) By balancing phase currents (ii) Variable technical losses (I2R losses). Answer : (i) Balancing Phase currents: Proper (healthy balanced) three phase loads always draw equal currents in all lines but single phase loads in the 3 phase 4 wire system or loads connected between two ... . 11) Minimize I2R losses. 12) Balance the load currents. 13) Regulate the system voltages. ...
The transient currents are associated with the? Answer : The transient currents are associated with the changes in the stored energy in the inductors and capacitors. ...
Answer : In a single phase power factor meter the phase difference between the currents in the two pressure coils is exactly 90°. ...
Answer : For handling greater currents induction wattmeters are used in conjunction with current transformers. ...
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