Answers were Sorted based on User's Feedback
Answer / zan
A lock-out relay is generally placed in line before or
after the e-stop switch so the power can be shut off at one
central location. This relay is powered by the same
electrical source as the control power and is operated by a
key lock switch. The relay itself may have up to 24 contact
points within the unit itself. This allows the control
power for multiple machines to be locked out by the turn of
a single key switch.
|Is This Answer Correct ?||4 Yes||1 No|
Answer / mohammad irfan
Basically it is Master Trip Relay, it takes signal from all the relays and finally trips the breaker.
|Is This Answer Correct ?||1 Yes||1 No|
How a generator is positioned in a hydroelectric power plant?
What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.
Why CT secondary should not left open??????????
What are the advantages of speed control using thyrister?
Why is reating of t/f in kva but for inverter in kw ?
why number of stator and rotor slots are not equal in IM?
how works inductive &capacitive sensors?
in india are trains run by DC or AC? if DC , from where it receives negative potential? because pentograph receives singe potential only?
How many 2 ton window A/c can runs on a 125 KVA generator?
What are the advantage of free wheeling diode in a full wave rectifier?
What is the direction of rotation of blades in a table fan and in a ceiling fan ?
what is the rating of boiler?