Answer / priyanka

high vtgs are produced by high vtg surges,a sudden
increase of voltage damages the equipment throughout t/m
line so surge absorbers have to be used to protect the
equipment as it is very costly.

Answer / yaswanth

high voltages are can also produced either electerically or
electronically.it is used to test the equipment's critical
voltage.ex.Insulation measuring, t/f oil testing.

Answer / chandrasekar

impulse generator can be used produce very high voltage for
short duration. And this high voltage is produced to test
electrical equipments like transformer , lightning arrrestor etc

Answer / alok

High voltages are
produced as a result
of various unwanted
factors like harmonics,
and these have to be
rectified from the
system, either they
may cause temporary
or parmanent damages.

why vaccum circuit breakers are preferred over m.o.c.b

2 Answers  

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WHAT IS THE SETTING OF OVERLOAD RELAY AND UNDER VOLTAGE RELAY IN PERCENTAGE?

2 Answers  

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What is order of the system?

0 Answers  

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Transformer type...??

1 Answers  

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why DC motor body is plain cover but AC motor is different like finse?

2 Answers  

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Why we are checking the vector group & turn ratio of Xformer while PM?

1 Answers  

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what is the diffrence between dol and star delta strater? why star delta starter used instead of dol?

3 Answers  

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What is rotary phase converter?

0 Answers  

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hi, i have 3x200KVA and 2 x 80KVA UPS with battery bank of 150AH 68Nos. and 100AH 204Nos., i need to install AC either ductable or PAC type, so can you help me to calculate heat load and capacity of the AC to install.

0 Answers   Hyundai,

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Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?

2 Answers  

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where used of HVDS system.

3 Answers  

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In legging current reactive power is arise but in leading current which power will be arise ? and in this case, is active power more than rated ?

3 Answers  

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