Supose we have one 220v A.C fan.if we provide 220v D.C what
will be happen?
Answer Posted / infodoss
1phase or 3phase any motor operate only in ac.Because AC
supply only can produce RMF.But dc supply can not produce.
when ever to give the DC supply in AC motor the motor will
be heated and finnaly burn due to insulation failure.
Is This Answer Correct ? | 23 Yes | 4 No |
Post New Answer View All Answers
Calculate torque developed by the 3-phase, 5 H.P., 4 pole induction motor runs at 1500 rpm A 23 N-m B 21 N-m C 10 N-m D 0 N-m
How do we arrive at selecting reactive capacitance value as 30% of h.p rating of motor?
How to Design green buildings services? What is the advantage to design green building?
I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?
what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?
why transmission is only 3 phase and not 2 or 4 or poly phases
how to calulate short circuit current for the following: 1.cable connecting 11KV of 22KV/11KV transformer to 11Kv of 11KV/415V transformer 2.what cable size should i use.
What are the functions of different probes used in cro?
What is mean by hot and cold loop testing?
The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s
how to select the isolation tranformer for siemens 802dsl cnotroller
what is meant by CT`s saturation ? Can we use Metering CT`s with Protetection CT`s ?
Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?
do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....
Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.