Interested to Buy Any Domain ? << Click Here >> for more details...
What is Lockout Relay and what is use of it in electrical
installation
- 1 Answers
- 3822 Views
- I also Faced
- E-Mail Answers
Answer Posted / manikandan krishnan
As it name says Relay contacts gets locked when there is a fault in the circuit.And it is the kind of mechanical switch. Once fault is cleared then only we can able to make the circuit closed by resetting the latching pin in the relay manually.without clearing fault , it wont allow to energize the closing coil of the breaker(ACB) even though u try to reset.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
what is formula to cal cute earth pit numbers and size of earth strip used in earthing?
how choose conductor&depending upon load
armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?
Define steady state error.
how to measure the transformer resistance values(dyn11)?and howmuch the minimum value?
how ups works ? various parts of ups and working principle
Who many reason of ignition fail ?
How earthing/grounding done in aeroplanes and ships.
wat is the first thing dat is needed, 2 lay a cable in some area??
Explain different types of d.c motors? Give their applications
Can double compression glands be used with regular cables?
in dc series motor if field wdg is shorted then
calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?
