Answer / guest

air circuit breaker is widly used for arc extingusar

Answer / cholarajan

making & breaking during normal & abnormal conditions.

Answer / suni

In Air circuit braker Air is used as a media to arc
extingusar.It is less cost maintance is eassy

Answer / mojtaba qolipour

air circuit breaker use in hazardous area,for example in gas
fields.
because arc is very dangerous in these areas.

Answer / dipanshu singh

in air ckt breaker air is used as arc quenching medium air
is at 20kg/cm^2

what is the Transformer Impedence?How can calculate?

0 Answers  

At what condition differential relay will act in transformer and ht motor?

1 Answers   Equate,

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1 Answers  

Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

3 Answers   Bhel,

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2 Answers   Cisco,

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0 Answers   Descon,

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3 Answers   Power Grid,

what will happen when excitation of a synchronous machine is suddenly reduce to zero when it is running at full load..??

7 Answers  

- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

0 Answers  

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3 Answers   HBL Power Systems,

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1 Answers