what happen when dc shunt motor field is sudden open in
running condition
Answer Posted / anusha
when rield circuit is suddenly opened, as the flux becomes
zero, back emf would become zero, hence high current flows
through armature circuit and the armature winding may
burnout.
| Is This Answer Correct ? | 4 Yes | 3 No |
Post New Answer View All Answers
how to calculate vfd o/p voltage by frequency
for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.
What is the numerical quantity of sqcm?
we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?
what is the breaking capacity and making capacity of circuit breaker and how
How to measure the Harmonic Distortion of UPS ie THD?
What are the material used for inductance coil?
all interview questions with answers of ntpc (2000-2009
how can i get the formula to find out the cable size if i know the load of main fuse protection.
what is apparent poewr, reactive power, & active power?
how to calculate transformer load?
why are the maintaine power factor and how can this control and this is how work.
Approach of a cooling tower is the difference between temperatures of what factors?
We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?
what is the difference between an alternator and a synchronous motor