Interested to Buy Any Domain ? << Click Here >> for more details...
When we change the tap position of 10MVA transformer it
suddenly tripped with Out of step indication and also with
Static differential relay indication, Transformer Bucholz
relay indn and Low oil level indication. Before 1 week the
same problem occured by changing the tap position. but at
that time only oltc bucholz relay activated. After testing
the TxR Relay team & PET team cant find any solid reason.
The values are ok also. So plz answer wat's the reason for
this incident? anybody plz help.
- 3 Answers
- 7308 Views
- I also Faced
- E-Mail Answers
Answer Posted / k.prakashchandra
There is a loose connection in one of the phases of OLTC
contacts.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
description with working of all parts of a Diesel generator???????
WHY NUTRAL GROUND SYSTEM USED IN 33KV SYSTEM
What are the applications of the electric motors?
why they were using TRIAC instead relay in some controllers and what is the advantages.
Can i use the B-curve MCB instead of C-curve MCB
What is systematic error?
Show the schematic arrangement of diesel power station layout and give its principle of operation.
What is the selection process of breakers. Can any one please give a formulation on same?
what is the function of impulse relay
How much costly in percentage wise is sandwich busduct costly than air insulated busduct of any rating?
Why neutral cable carry current.
why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?
For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?
What is measurement?
I am an American living in Vietnam and I have recently gotten a refrigerator from Japan and it is rated for 100 vac, but the power here is 220 so I bought a voltage stabilizer it has a 1 kva output rating. Can you please tell me what the amperage is? I'm confused and without a working fridge.
