What is the main uses of VCB & ACB?

2 Answers  

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what s d difference between inverter an ups

1 Answers   Jindal,

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What are the different types of circuit breakers?

3 Answers   IOCL,

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What is the d/f between DOL & star delta starter & automatic star delta starter?

23 Answers   ACC, Dalkia, Engineering, Indeco, NINL, Novotel, RMH Control Systems, Wipro,

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What do you mean by nominal ratio of instrument transformer?

1 Answers  

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why transmission voltages are in multiple of 11kv?

10 Answers  

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What type of DC motor would you see for a lift?

0 Answers   Ericsson,

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What is the use of Gateway RTU like ABB RTU 560 in power plant, SAS system ?

1 Answers   ABB,

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why we not connect the 12 V batteries in parallel to get the more backup supply for an UPS ? wheter off line or on line UPS ?

2 Answers  

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what is the term of desruptive voltage

5 Answers   Bhel, Energy Infratech,

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hw to calculate flc of motor ? data are:3-phase,50Hz,30kw

6 Answers   BRG, Reliance,

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how to changeover ups in this power failur time?

0 Answers   Essar,

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