Why restricted earth fault protection is needed? Why can’t
differential Protection is sufficient?
Answer / mazen
restricted earth fault relay shall be provided for each
neutral earthed star winding of power transformer
| Is This Answer Correct ? | 1 Yes | 1 No |
what is the write prosidure of stringing of 8meter pcc pole.
Recently we had experienced following problem All RCCB breakers (connected to the load as well as spares) connected to various UPS systems at various floors at a high rise building tripped during a power break down and upon starting up of generator.This Generator is recently inducted into the installation. Can any one explain the reason behind this tripping. Regards Viswanathan
Please explain how to do 'tan-delta test' on AC generator? and where i get clear and brief detail, give any web page address.
why does fans rotate in anticlockwise direction?
What is negative phase sequence?
7 Answers Hindalco, Universal Associate,
A resistance of 50 kΩ has a conductance of:(a) 20S(b) 0.02S(c) 0.02 mS(d) 20 kS
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