Answer / shiva13power

An AVR stands for automatic voltage regulator,it is used to
maintain the output terminal voltage of an alternator
constant by regulating the d.c excitation fed to the
generator.It regulates the output of pilot excitor which is
D.C.

we have total 1000hp motors we paid 7 laks rupees how to reduce power bill

4 Answers  

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what is the voltage between earth to neutral in lift.

0 Answers   SIPL,

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when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.

0 Answers  

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what is arc flash and what are the hazards involved

0 Answers   Reliance,

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What happen if we give resistance to the armatuure of a dc motor?a

1 Answers  

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which theorem is used to analyse fault a)thevinin b)Norton c)Superposition d)jordan

1 Answers   FFC, NTS,

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in three phase 11kv transformer (11kv/433v) input( R,Y,B) output (X,Y,Z,N) the connection as follows 1 phase R -open 2phase y connected to both R and y of input] 3phase B- B what is the output voltage X to N ,Y to N , Z to N

2 Answers   Bescom,

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Why 3 over-current and 1 earth fault relay is used on primary side of transformer? Why 2 over-current and 1 earth fault relay in used on secondary side of transformer?

1 Answers   Adani,

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what is the temperature rise test? explain in brief.with formula.

1 Answers  

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What is mean by ideal infinite bus? Why it is required to consider in fault short circuit calculations?

1 Answers  

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Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.

0 Answers   DAE,

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at present how many 765 kv lines are there in india?

5 Answers   Emco,

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