Interested to Buy Any Domain ? << Click Here >> for more details...
What are the protections used in a HT breaker to protect
the HT motors.
- 2 Answers
- 22493 Views
- I also Faced
- E-Mail Answers
Answer Posted / sivaraman
We have to use for Motor Protection Relay (SPAM 150C)
1.Short Circuit
2.Excessive Start time
3.Thermal Overload
4.Locked Rotor during running/start up
5.Unbalance/loss of Phase/single phasing
6.Earth fault
7.Loss of Load
8.Temperature supervision of motor
9.Limitation of No. of Starts/Time between starts
All above facilities are available in this relay.
| Is This Answer Correct ? | 27 Yes | 2 No |
Post New Answer View All Answers
I want the details about BHEL company examination.Can anyone able to help me please.
when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com
what is the purpose of using filters in a protective relaying scheme?
What is the function of electron gun used in crt?
If i am running of spindle at 2000rpm ,but How to spindle stop at the second I am resetting the machine in CNC machines
Advantages of using generator circuit breaker (GCB) scheme in a power station ?
Why the power generated in dams is complex power? Why the generators in dams cannot produce Real power directly (i.e power which has zero reactive part)?
hello friends.. I have a doubt regarding the operation of dc machines.. I studied in a text book that a dc machine can be used as a generator and as a motor.. is this possible? If so,please send me the info about this topic.. you can also send your info to my mail.
in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?
While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x
Is there chopping current in resistive circuit
why the India electrical supply transmission loss is high when compare to us
what is the basic need of domestic loads 1- voltage 2- current
in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?
how a flip flop can be used as a latch?
