for which possible reasons a motor can fail to start??
Answers were Sorted based on User's Feedback
Answer / sathiyakeerthi
The power is not there
check the I/P & O/P wire
Check the Starter
| Is This Answer Correct ? | 6 Yes | 1 No |
Answer / sheleph
we need to check below things if motor not getting started
whether any fault is coming when we start the motor
If not then check
Check voltage healthiness
each stop(LCS,DCS,ECS)should be released
Check wheather any of the BIs of Relay not working
Check interlock as per drawing
if still not happening then check respective contactor or
breaker
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / praveen
when both the field flux and armature flux are opposite then resultant electromagnetic torque going to zero this results such that it does get necessary driving force
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / makwana girish
Starter conection wrong first check afteer motor start.
By Company(L&T)
| Is This Answer Correct ? | 0 Yes | 0 No |
Why are calling lagging power factor is a inductive load?
What will happen if I apply DC to AC transformer? please send detailed answer at habib_rahman_habib786@yahoo.com
Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ??
44 Answers Akona Engineering, Bhel, BSES, Cranex, DRDO, JCB, NTPC,
what meant by Locked Rotor Current ?
how caculate the pump head to maintain perticuler pressure of water and what would be the motor size in hp for the same?
why the active power flow of some line is increased when the active power of out is cut ?
What is the function of turbo charger in generators
Can we use 11kv Trivector Metre or Energy metre instead 33kv Metre at 33kv Over Head Line metering purpose?
how brushed dc motor operating ?
how to determine the inrush current of a transformer
As a good company employee, can you report your supervisor to the company management if he or she is going against the company interest in his or her actions?
At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)