why the autotransformer burnt while stating the pumpmotor?,
In starter and motor there was no abnormality.
Answer Posted / d.lakshmi narayana
To check the transformer tap voltage
persantage.(or)Unbalance the tap voltage (or)To take proper
tap voltage for motor starting load
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Why High voltage are generate noise ?
why ss stablity limit is more transient stablity limit?
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?
how to calculate the earth fault current
What is the feedback in the control system?
how is control wiring coding is done in a CRP panel ?
Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?
How to perform a DC resistance test In Alternator and their proceduces?
what is the difference between vector scale and vector diagram?
What is the difference between hot and cold loop testing?
WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?
Z transform is use when system is not a) converges b) diverges
defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?