Why the TNC switch is called as Memory switch
I think it is called so ,as the closed position remains in memory (( L M D ) to give ' auto trip ' indication .
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How to prepare electrical preventive maintenance plan & shedule of machine tools in manufacturing unit.
why fuse amperes rating are specified ratings like 32amp & 64 amps?
3phase 4 wire system is more reliable or 3 phase 3 wire systems?
Is it possible to connect a safety device in to parallel?
Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?
Can anybody just suggest about the scope of Electrical design with ETAP software?Just guide me?
why we use to transmit the power in three phases intead of single phase ?
what is the maximum permissible limit value of leakage current and leakage counter reading to replace lightining arrester?
Can the efficiency of transformer be measured with the help of wattmeter readings taken at primary and secondary side? Support the answer.
two parallel conductors are carrying the current in the same direction.which of the following statements is true? (a)there is arepelling force between the conductors (b)the force increases when the distance between the conductors is increased (c)there is an attaracting force between the conductors (d)the force increases when the distance between the conductors is decreased
I decided to provide a 11KV / 440V Xformer in my Substaion. What are the protection required for that?
what is the difference between on line & off line UPS
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