what is the difference between relay, contactor

4 Answers   BRSS, Vishay Intertechnology,

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what is the working principle of Brushed alternator ? without exictation how we can give dc supply to rotor ?

1 Answers  

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what is the difference between Inverter and ups

1 Answers   L&T, MTS,

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what are difference between indoor and out door substation

1 Answers  

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why 400Hz is used for aircraft systems ?

14 Answers   Cabin Crew, Jet Airways,

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what are the sections in a high voltage system(eg:incomer,buscoupler,isolator

1 Answers   IGL, L&T,

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how can we calculate the ratio of caustic soda and water in lrs.

0 Answers  

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Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction

0 Answers  

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What happens when two positively charged material is placed together?

0 Answers  

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How to connected to energy meter, pt, ct, ammeter, voltmeter and selector switch.

1 Answers   Omplas,

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why there is spacing between two rails in railway?

3 Answers   DS Group, RRB,

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If the battery is in charging condition means, battery is which type of load? Capacitive or Resistive load?

2 Answers   Crisp,

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