Answer Posted / raj

the above last two answers are exactly correct, but now a
days we have interlock between braker and isolator also.
isolator opens only when braker is opned. also we have earth
switch attached to issolator to discharge induction voltage
in circuit also enable protection under maintanance.

which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?

1986

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how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????

2327

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Why do we use center tap transformer that used with portable tools

2210

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there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1884

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How do i right a ladder diagram that has 1 actuator that performs a full stroke followed by a half stroke

2023

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Why do we pefer VCB over OCB?What are the advantages of VCB over OCB?

2576

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what is magnetizing current test in power transformer

2678

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If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")

1902

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What does the term “voltage regulation” means?

1030

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what is the difference between rectifier and converter and commudator?

1890

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if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required

2422

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what do you mean by plant earthing system.

2000

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Why use the vcb at high transmission system ? Why can’t use acb?

1266

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How to define Kirchhoff current law and voltage law along with simply examples.

1700

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i need about 10 years of GATE solved papers in pdf format and even mock tests toooo

1620

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