I have 2 transformers in two different plants, both are
without OLTC but i am facing problem of voltage fluctuation
at LV side from only one transformer.
i have to change its taps manually twice in a day.
Another transformer delivering voltage is ok.
Please guide me about the problem
- 1 Answers
- 3460 Views
- I also Faced
- E-Mail Answers
Answer Posted / 7anoter4
Voltage fluctuation it means voltage drop. It could be a
lot of factors producing big voltage drop.
The voltage drop in transformer -transformer size does not
fit the load and then at load peak the voltage drops under
the permissible limit and in less-or no load-the voltage
raises up to the secondary EMF [no-load voltage]- mainly if
there are many motor starts per hours.
If the supply-medium voltage-is variable-medium voltage
cable too small.
If the feeder from transformer to switchgear is undersized
the main voltage drop could be here.
A complete analysis could find the cause.
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
who many types of fire explane with exmple
i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test
Starting Time of LT & HT Motor
Which type of transformer is used for lighting loads?
What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?
sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company
What is the loss of power of transformer 220kv/33kv,63/80mva of % imp12.05 at 80%load
Why we are using Isolation Power Transformer inplace of commercial power transformer? What's the difference between them?
why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.
What is load boxes ?
What are the two major types of control system?
How to calculate the heat load for a electrical room
What do you mean by a phase angel of instrument transformer?
how to calculate energy of 3-phase motor?
how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours
