What are the types of lighning arrestor protection system? how to choose that according to load?

2 Answers   SPL,

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What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?

0 Answers  

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Why the wave trap is put in Y phse only in switchyard?why not in other phases?

1 Answers  

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can we connect transformer with star conected secondary to delta connected primary in series?

1 Answers  

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How can we calculate D.C.Load current in terms of A.C. load current?

2 Answers  

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what is power factor

3 Answers  

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A circuit breaker on detecting fault will a. Open b. Close c. Open and trigger the alarm

2 Answers  

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wht factor are considered to design ACB( air Circuit reaker) 415V

3 Answers  

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Alternator couple to diesel engine why, Alternator couple to ac service motor with gear drive for 1500 rpm possible (yes or no) aim to low input power supply give to motor then high output power taken for alternator Please answer this question

1 Answers   Turbo,

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in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?

0 Answers  

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how will you determine the short circuit capacity of a network

3 Answers   Dalkia,

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If i want to build 230kv substation what are the equipments to be installed?

7 Answers  

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