Answer Posted / k.prakashchandra

All cts in parallel and REFR in series with NCT

Why do we pefer VCB over OCB?What are the advantages of VCB over OCB?

2634

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can u tell me the promotion from oiller to enginer

1949

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Is there any Electrical supervisor license which gives permit to work whole India rather than individual state??

1876

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Explain the term parallel path in dc machin ?

2222

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can anyone send me some sample question regarding power grid corp

2209

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what is vtg limit of earth and neutral at transformer side?

2040

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if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?

1914

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how can we phase identification in a distribution line,how we recognise that which phase is coming for a house hold connection.help me............

2082

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While HT line put on to activate ACB in low tention panel VCB tripping instantly.why it happens

2091

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i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle

1982

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how synchronous condenser is used in place of synchronous generator with out negotiating IEEE standards? Can i use 3 generators as synchronous generators and 2 generators as a synchronous condensers in an IEEE 14 bus system with out disturbing the standards?

2133

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We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

1530

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what is feeder bay?

1600

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7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?

2287

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Why a Permanent Magnet Generator has higher frequency as compared to frequency of main alternator?

2001

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