Why no-load primary current is very small
as compared to full load current in transformer (as 1% of
full load current?
- 5 Answers
- 18909 Views
- NTPC, I also Faced
- E-Mail Answers
Answer Posted / azam
No load pr-current of a transformer is only 1-3% of FL
current because when supply applied 2 t/f it produce
alternating flux which induces emfs in primary & sec wdgs
with in the fraction of second. where as in the case of motor
starting current drawn by it is very high due 2 no presence
of back emf
| Is This Answer Correct ? | 3 Yes | 6 No |
Post New Answer View All Answers
which is chemical used as in ro water what is difference betweeen multi grade filter&dual media filter
How servo stabilizer works.
What are the functions of temperature scanner in power transformer?
How do i perform grounding of star point of Genset (400V) for making connection with step up transformer of DELTA-DELTA (400V to 20KV) ? while Genset itself has its own neutral and grounding bus bar inside genset breaker box whereas we have another neutral and grounding busbar in synchronizing panel next to genset at maximum distance of 6meter, would someone pls advice if we can only perform neutral grounding in synchronizing panel or should we ground neutral on both places inside genset breaker box and synchronizing panel.
How are load losses and no-load losses measured at site in a DG set?
How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.
why we use 630mm single core cable for transformer secondary side and why two neutral cable
before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water
Explain dc generator with its types?
What is the difference between relays and contactor construction wise?
how does commutator convert a.c to d.c?
what is the formula for calculating the phase clerance between two phases and phase to earth how to calculate the cable for a motor
Disadventage of cable-gland earthing if any ?
How to check the cable fault / hv test of transformer cable.
briefly explain the main blocks found in a microprocessor based system
