Why is earth connected to neutral on transfomer installations
Answer Posted / pradeep
In fact, transformer neutral is grounded for a star connected winding.
there are several reasons for neutral grounding in a transformer.
1. the main reason is to avoid automatic neutral shifting problem due to unbalanced loading.
2. Neutral can also be grounded to introduce the protections related to earth faults. So that the internal/external earth faults can be identified in the first instant in order to isolate the faulty circuit as faster as we can.
3. Neutral grounding can also be done through a series resistor/reactor or a transformer to limit the fault below certain level and to avoid the problem of "Arcing grounds"
4. Personal safety
5. Reduced magnitude of transient over voltages
And so on...!!
Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem
what is mean by dual digital protection in the relay field?
What are the advantages and disadvantages of negative feed back?
what is meant by CT`s saturation ? Can we use Metering CT`s with Protetection CT`s ?
Pls explan the OLR setting in VCB at HT yard
what is RFCT and Insulgard Relay & It's function?
What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)
For a three phase induction motor, what will be the effect on motor if the neutral of the system is shifted to say 20 deg.?
where reactive power is used
What willbe change in programming when we use 5/3 solenoid inplace of 5/2 in operating of a cylinder?
What is the most important precaution in any experiment with d.c. Shunt motor?
which cable is used for 15 Hp monoblock pump 3phase and service wire Distance is 210 feet please tell me cable size Armaured
what is meant by the phrase 'static load' in case of shorting in a generator excitation system?
Approach of a cooling tower is the difference between temperatures of what factors?
What the difference between ac and dc inductor an capacitor