Answer Posted / vinayak

the basic difference between the load break and vacuum
circuit breaker is the arc quenching media or mechanism.
In load break switch the arc is quenched by lengthening
using arcing horns, whereas in vacuum circuit breaker arc is
quenched by the removal of the metals vapors from the media
which are created by the separation of the contact.

What will be the voltage impact on secondary side of two transformers with different vector groups when both voltages are compared.

1993

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IN 1000kva transformer where the oil and winding temperature sensors is connected

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what is Fault level? why it is calculated? how will u decide same for our plant?

2048

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I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?

1962

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A ii kv 1200 A Breaker combination fixed in a cubicle. How many ampere Fuse is required? If fuse is not using, Why?

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How LT megger works ?

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im electrical engineer, could any one help me for FEWA exam questions please ?

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i need of the bhel question papers along with answers and also give some website names for the downloading question (electrical and electronics engg question)please help me....

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How is magnetic leakage reduced?

1156

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What are the types of the glands and difference between single and double compression type of cable Glands.

2079

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What is knee point voltage of transformer?

1135

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why the earth is taken minimum in supplying? wather it the proportional factor to getting work any equipment or a power plant?

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What is the dependency of stiffness on load angle??

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What is the meaning of Insulation H for transformers????

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