why neutral grounding transformer is used for generator and
why it is not used for transformers?
Answer Posted / sunil kumar sinha
NGT is used for generator to limit earthfault current and
provide earthfault protection of generator stator. In case
of generator the voltage built up in the primary winding is
related to earth leakage current, hence NGT is charged to a
very low voltage, but the Transformer is always charged to
its rated voltage hence no such device is suitable either
to limit earthfauilt current or any kindf of protection.
Is This Answer Correct ? | 4 Yes | 2 No |
Post New Answer View All Answers
why and how current drawn by battery charger depends upon the altitude where it is located?
how we calculate the dick for a pole?
george phenomenon of synchronous machine
How will be the single line diagram of series trip HT breaker? how it works?
specify the inbuilt protections in DG
Why we use auxillary relay ? what is function of differential relay, directional o/c relay?
Pl. brief about break-down maintenance of machine tool.
Why power factor should not be in leading (capacitive) mode of any load.
What is difference between YNyn0 and YNyn ??
What is industrial plc
What is slope...? Explain slope 1 and slope 2...?
how does the thyistor work in dc drive?
use of PIR in ehv breaker
why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?
What the main causes of transient interruptions on Over-Head Distribution Lines?