Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / thowsif_emerson
It consists of an iron armature fastened to a balance beam.
Under normal operating Conditions, the current through
the relay coil is such that the beam is held in the
horizontal position by the spring. When a fault occurs,
the current through the relay coil becomes greater
than the pick up value and the beam is attracted
to close the trip circuit. This causes the opening of
the circuit breaker to isolate the faulty circuit..
Log on to:-
http://electricalandelectronics.org/2008/10/30/electromagnet
ic-attraction-relays/
| Is This Answer Correct ? | 11 Yes | 2 No |
Post New Answer View All Answers
what's prime importance of protection in electrical system.if protection system don't work properly what can happen in electrical system?
Pl.brief me any electrical major fault you have rectified.
WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION AND METERING?
I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA
If ROC does not lies inside unit circle,then ? a) Fourier transform converges b) Z transform converges c) Hatly transform converges d) Colpit Transform converges.
Why a Permanent Magnet Generator has higher frequency as compared to frequency of main alternator?
IN SINGLE PH TRANSFORMER IF LEKAGE IMPEDANCE DROP IS NEGLECTED ,THE FLUX IN THE MAGNETIC CORE and the lekage flux linking a winding are a)proportional to the applied v to the winding i respectively.
how can calculation ate Amps for cabel. Ex-for 1sqmm wire hou many amps we can draw
how to test power transformer.YNd11
how to select size of hardware for linking aluminium busbar is it depend on area of busbar or current flowing through bus bar
how does a submersible pump work..?
what kelvin's law ?
1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??
What is the complete procedure of erection of electrical panel in industry
what kvrah y we need to take the readind of that
