differentiate between remote backup relay and local backup relay?

1 Answers  

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why should be the frequency is 50 hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50

3 Answers  

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If current flows through conductor it produce magnetic field only.but if current flows through vaccum both magnetic & electrical field produce why ?

4 Answers   NTPC,

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what should be the megger test report for 11KV cable when meggered with 5KV megger , what is the resistance value we should get

7 Answers  

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7/20,3/20 electrical wire is specified as stated.Why?

1 Answers   TCS,

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What is the work of ACCP in LT panel?

5 Answers   Juniper Networks,

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why we not used 11kva as a direct our electrnics component.

0 Answers  

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what is the formula to convert from KVAr to current?

1 Answers   Halcrow International Partnership,

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what phase and neutral.

3 Answers   HP,

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Why Nutral CT rating for Earth Fault Protection of Transformer neutral shall be 20% of Full load Current of Transformer

2 Answers  

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What is Synchronization of generator,where and how it is achieved.

1 Answers   HEC,

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In what voltage EHT works(133/132/33/66kv?

3 Answers   Adhunik,

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