what is the purpose of supervision relay coil

1 Answers  

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what is the difference between indoor & Out door substations

5 Answers   HSBC,

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how does a shunt reactor maintains the bus voltage???

0 Answers  

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What is TR of AC?

11 Answers   Carrier, Reliance,

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What is the differance between 2 dc motors of armature voltage 660 v and 440 v?

0 Answers   Kirloskar,

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how can we find a burden of potential transformer? what does it effects? how can we calculate rated load of it?

4 Answers   Areva, KPTCL,

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What is Rough Balance Busbar Protection

1 Answers  

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How to calculate the current rating of power cables ?

1 Answers  

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what are the differance between neutral and earthing?

3 Answers  

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What is the criteria in selecting Air circuit breaker(ACB) & Moulded case circuit breaker(MCCB) for a particular range?

3 Answers   DLF,

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when i am going to take trail on a 3ph sq.i/m motor 5.5kw, i observed that RPM of the motor is very low as compared to the rated RPM and also it rotates in clockwise in first ON command,and anticlock wise in second ON command. finally i observed that on phase is no available . but iam not clear about, why the motor is rotates in both directions without any phase interchanging.pls answer to my question.

1 Answers  

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operating Lt & HT voltages used in India?

8 Answers   Essar,

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