what is meaning of bus riser

0 Answers   TeamLease,

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assume we are put both df/dt and vector surge relay in same bus the df/dt relay setting is +5 hz an -5HZ. we want operat the vector surge relay before the df/dt how i calculate the setting of the vector surge relay.

1 Answers  

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IDMT relay are mostly used for protection against..??? 1)Earth Fault 2)Inter turn fault 3)Overloading 4)None of the above

1 Answers   Indian Railways,

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A charge of 240 C is transferred in 2 minutes. The current flowing is:(a) 480A(b) 120A(c) 2A(d) 8A

2 Answers  

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How to desaturate a saturated CT of PS Class?

4 Answers   Electrical,

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What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks

0 Answers  

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which is more dangerous AC\DC supply

3 Answers  

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What can make the the overloads operate when a star delta three phase motor starts?

1 Answers  

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What are the different modes of plc processor?

1 Answers  

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What is the diffrece between ACB & MCCB

8 Answers  

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how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???

0 Answers  

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xlpe cable 4 core nuetral wire is small why ?

3 Answers  

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