How does a VOLTAGE OPERATED DIFFERENTIAL RELAY work??
Answers were Sorted based on User's Feedback
differential relay which operates on two or more similar
quantities i.e voltage,current.
in this relay under normal condition, no voltage flow
through coil i.e vi+v2=0 but in abnormal the differnce of
two voltage i.e v1+v2 will not equal to zero. so that
voltage will flow through the coil further protection of
equipment/devie/system etc.
Is This Answer Correct ? | 4 Yes | 5 No |
Answer / akhilesh
suppose pri side of pt(3 no's) is connected to any 3 phase
winding n sec of pt is open delta or connected to relay. in
balance cond Vr+Vy+Vb=0 n under unbalance cond not equal to
zero.so that some current fkow through sec of pt n relay
operates
that is ans
Is This Answer Correct ? | 3 Yes | 6 No |
which is dangerous AC or DC? If so why?
Why arc quenching is used in Diode ?
in dc shunt motor if field winding is shorted then
why commutator are not used in rectification purpose in power electronics?
What is the selection process of breakers. Can any one please give a formulation on same?
What will hapen if we run generator below 47.6hz frequency?
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 dc induction motor ? and how to control its speed ?
when motor taking high amp what happen.
1.What is wind span ,wight span and normal span, and what is the difference for 132kv transmission .
WHY FEEDERS TRIP IN COLD AND FOGY WEATHER?
What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?
0 Answers AFG, Afghan Telecom, GE, IBM, SECL, Sun Pharma, TNPL,