reason behind why the reverse power relay of incoming
machine was not acted even when no load was shifted on
incoming machine after synchronising the machines ?

Answer Posted / kj

The reverse power relay operates when power is flowing into
the machine only.
If the machine is not taking any load it is not in a
reverse power situation. Therefore the relay will not
operate.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

PLEASE TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.

7046


1.why we are using blocks in withoutgaplightning arrester 2.why we ar using bushing in withoutgap lightning arrestor

1563


How is the resonant peak, resonant frequency, and bandwidth determined from nichols chart?

669


Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega

1379


how much cable size required for 70 kilowatt load.

1159






how to calculate units consumption for a 12 hp motor /hr.

1041


234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

1748


Please sent me some previous year question papers of BSNL-JTO telecom and RRB in ELectrical Engineering to varshashahi@yahoo.com

1569


Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?

977


What is VSCF windelectrical system?

1354


What are the insulation standerds for eg H clase and how many insulation standerds are there and its standerds??????

1495


Why auxiliary transformers are not connected in parallel in primary stations?

966


Why back emf used for a dc motor? Highlight its significance.

674


what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

1537


Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?

1725