What is meant by directional power and reverse power relay ?

1 Answers   HAL,

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What is the principle of HIGH SPEED DIRECT DRIVE MOTOR ?

0 Answers   Honeywell,

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how ship earthed?

5 Answers   Marico,

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High Voltage out door substation-annual maintenance, things to be considered

1 Answers  

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What is the different between buchholz relay and pressure relief device?

2 Answers  

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explain why reduced voltage starters are required for large tree phase inudction motor

2 Answers  

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in transformer input is d.c signal which type of emf is induced

1 Answers  

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please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com

0 Answers  

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1.Whats the use of GNAC(Generator Neutral Accessory Compartment) 2. why generator or any other system require Neutral Grounding and not Phase grounding 3. what happens if any one of the phase is grounded. 4. if 15kv is grounded directly what will happen, why it should not be grounded like that 5. use of of NGTR(Neutral Grounding Transformer and Resistor) for grounding is helpfull and how

5 Answers   BEMCO, CSS, Powergear,

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The unit of resistivity is:(a) ohms(b) ohm millimetre(c) ohm metre(d) ohm/metre

4 Answers  

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What is HT? And specify the range of voltage?

5 Answers   HSL,

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How multimeter shows phase to phase voltage 440V & phase to neutral 220V.

2 Answers  

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