Answer Posted / g.balaji
Relay is a sensing device which senses a particular circuit
condition(eg:DC/AC Voltage & Current) and changes the
status of its contacts(eg:NO to NC,NC to NO)by which it
operates the auxiliary devices connected to the contacts.
| Is This Answer Correct ? | 1 Yes | 4 No |
Post New Answer View All Answers
can i connect REF and Differencial relay in 1 CT core for transformer protection?
how to select proper cable for ct wiring so that drop within the limit.
How to synchoronize the generator (with gcb,GT) to grid????? ????? from Grid iam getting power (rated 400kv/20kv) through GT and its goes to UAT.,,ST.,, now my generator(rated 20kv ) ready.,, now iam closing my GCB.,, in GT iam suddenly giving 20kv on that Gt.,, what will happend
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
what is meant by surge? what we called for high currents?
The Q-facr o of a coil given as wL/R. what will be shape of Q versus frequency graph.
What happens if we connect a single phase energy meter in reverse polarity.
what is active power & reactive power?
what is the AC Plant and how can do the work with parts and picture tell us 150 Tr
what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq
How to measure size of cable on a given load
In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????
how can we make cable shedule for controll wiring ? which details must be required for it.?
WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.
send me all basic electrical question and answers