We operate a 10 Mw facility and we have been experiencing
several trips due to fluctuations on the MVAR? We have
checked all issues related to the AVR and we have found all
OK? Can anyone help us? The grid voltage, internal voltage,
all regular parameters look ok. MVAR fluctuate and there it
goes the unit? What could be happening? Thanks!

Answer Posted / a.j.pailwan

Please check CT connections, CT Specifications and
saturation of particularly B phase as this CT feed back is
used in AVR during PF control mode while pareller with grid.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Do Phase angle measurement have any application in freq/harmonics measurement? If so how?

1460


Why you want to join non technical field when you are an engineer?

6203


high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...

1535


Pleae send me last 5 years of Question book about RRB chennai.

1810


Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?

1799






how withstand of hi-pot test outputs of transformer wire 2.5mm

1503


im working in one private compeny in gujarat. i was complet diploma electric in 2010 from gujarat technical board. now i want electric supervisor licence in gujarat but i dont't know when i apply? plz give me address of the licence dippartment office in gujarat. gandhinagar

1410


Difference of induction motor & servo motor ??

1300


how brushed dc motor operating ?

1418


Block diagram of Power line communication?

1875


Define pole pitch?

595


What is the difference between alternator and generator?

737


Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?

2334


what is the basic construction diffrance between servo motor ans sqiralcage induction motor

2014


What is the effect of pi controller on the system performance?

609