Answer Posted / srikanth
OLTC(online/load tap changer)is typically used where we
have a variable voltage available on primary side
(11/22/33/66 kv etc.,).The reason behind using OLTC is to
ensure that a proper primary voltage is always
maintained.For example for a 11kv/433v installation which
is located in a industrial/rural area,the voltage on
primary side will never be 11kv.It keeps varying 10 or 9
(peak load time)during day time and may rise to 12,13
during night times(non peak load time).So by having a OLTC
we can raise or lower the volatge accordingly & try
maintaining 11kv/433v.
| Is This Answer Correct ? | 2 Yes | 3 No |
Post New Answer View All Answers
how did i get the competency certificate as electricle supervisor. iam completed my b.tech.but i dnt have any experince, this certificate is required for applyng ongc mangement trainees. what should i do sir please suggested me
What is the Nyquist criterion regarding control systems?
In how we connect watt meter for open & short circuit test of a single phase transformer.
Define step response?
What is a system?
State thevenintheorem?
How to discuss the phase shift of transformer considering open delta?
In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?
What is George phenomena to start the synchronus machine?
When is lag lead compensator is required?
how we can set the IDMT relay.
why transformer tank is in rectangular shape what happen when it is in step shape
WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....
full form of flry b
what is RFCT and Insulgard Relay & It's function?