what is isolation Transformer?

8 Answers   HP,

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what is the differents and advantages of Electro magnetics relay and static relay ? what is the numerical relay ? advatages?......

7 Answers   CAT, L&T, TCS,

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what is the purpose of ignitor in lighting fixer

1 Answers  

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Why the tank of transformer is made rectangular not circular??

9 Answers  

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what is the phase voltage and line voltage in 2 phase power supply?

1 Answers   EID Parry, IBM,

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What is the difference between type1 and type2 relay protection co-ordination for motor feeders

0 Answers   DAE,

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A 400KVA Transformer has 400Hz frequency.if frequency is changed to 50Hz,then what will be the new KVA rating?

2 Answers   ABC,

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Define the overload capacity of the motor?

0 Answers  

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if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

0 Answers  

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1.Why sinle phase motor is not self starting 2.working principle of alternator 4.list out electrical formula

2 Answers  

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What will be the resultant out put voltage when two different voltage rating batteries are vconnected in parallel? pls. answer with example if available.

1 Answers  

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hai every bodi please let me know the test procedure for lightning arresters.

2 Answers  

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