Answer / s. venkateswararao

check the selector switch auto mode comand, and auto tap
changer time setting lower and upper voltage level setings
to be checked.

Answer / naveen

Oltc worked with reverse- forward motor starter through in built programmed pcb card ,command taken from this card as per voltage observation whether voltage level to be raised or down .Voltage level can be also manually controlled via selector switch.

Answer / guest

I feel its better to call in the experts. Like when I
worked at Reliance, the transformer was supplied by Bharat
Bijlee and their person used to come and do the needful
from Kalwa, Mumbai. Its quite complicated and not easy. So
you are advised to consult your supplier.

Answer / ams

check AVR setting and check whether AVR is executing the
command correctly.If yes go for further check.

Answer / sandip upare

Once you can try changing phase sequence of tap changing
motor.

what is the generation action and motoring action?

3 Answers  

What is ST and specify its range of voltage.

0 Answers  

Why generation voltage in thermal power plant is between 11kv to 33kv?

0 Answers  

why excitor coil of an alternator can fail

3 Answers  

How are load losses and no-load losses measured at site in a DG set?

0 Answers  

Difference in load break switch, isolator and circuit breaker.

1 Answers   KSEB, L&T, Siemens,

how to calculate the ngr capacity(nutral grounding resistor)

2 Answers   Divis Laboratories,

what is meant by re-rolling motor? how it differs from standard motor?

0 Answers  

What is power factor?How to improve power factor

2 Answers   Tech Mahindra,

Is there any difference of regulation of transformer, alternator , transmission line, if yes, what is it?

1 Answers  

how can u do the earthing of an aeroplane?

5 Answers  

what is the maintain in ACB,VCB,MCB,MCCB breakers?

4 Answers   CTS,