1)Why potential transformer primary site grounded?
2)can be loop between neutral & body for grounding?
3)What is the difference between ELCB &RCCB?
4)Why we use iron core in transformer insted of wooden core?
5)what is the principle of excitation?
6)Why we test the core balance test for transformer?
7)what is creepage?What is the creepage length for
insulators at different voltages?
8)How much type of relays used for differential protection
of generator,transformer & busbar protection?
Answer Posted / manishkalia09
ans not know.
please give me anser of these questions.
| Is This Answer Correct ? | 3 Yes | 3 No |
Post New Answer View All Answers
63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?
HOW WE CHOOSE EARTH'S POTENTIAL AS ZERO V?
how can tell us the AC indoor or outdoor which Tr and formulls
1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?
what is invertor supply and raw powersupply
33kv Rated output avilable in market (any where in india)
State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp
The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is
what is the difference betweem star connected motor & delta connected motor?
what is the prosses for getting of 33kv licence (i have completed my engineering degree & working in 33kv substation for contract basis )????
which connection is safer series or parallel?usually which connection we prefer at home?
boiler is running in rankine cycle and deisel generator is....?
While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?
Why transformer used in UPS??
please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.