Interested to Buy Any Domain ? << Click Here >> for more details...
what is the Excaste meaning of CT Saturation??
10 P 20, 15 VA, what is the meaning of 10, & 20.
if the CT polarrity changed what will happened??
what is the differece between measuring CT & Protection CT??
what is the Saturation Point of measuring CT & Protection CT??
- 1 Answers
- 11396 Views
- I also Faced
- E-Mail Answers
Answer Posted / ritesh ashok jaiswal
CT SATURATION MEAN CORE LOSS THE CAPACITY OF HOLDING THE
FLUX .THAT IS THERE IS NO OUTPUT AT CT SECONDARY .
15VA, class 10 P 10 CT means ratio error of prescribed
limit are constant up to 10 times rated primary current
when secondary burden is 15VA.
POLARITY CHANGE DEPENDS UPON FOR WHICH PURPOSE THE SAID CT
IS USED.
Measuring CT :-
 Use for measurement purpose.
 Accurate within the specified working range of
rated current (1% to 120% of rated current)
 Designed to saturate for more than 1.2 times
current to safe the measuring instrument from sever strain
caused by heavy over current.
 Accuracy is not required at high over current.
 High permeability core material with low saturation
level is most suitable ( Nickel- Iron Alloys).
b) Protective CT :-
 Use for protection purpose.
 A protective CT is required to faithfully transform
the primary current throughout it’s entire range from
normal load current to short circuit current.
 It should be accurate at all higher value of
current up to rated accuracy limit of primary current.
 To get high saturation level, grain oriented steel
are used for core.
GENERALLY the Saturation Point of measuring CT 30 VOLT &
Protection CT IS 300 V OR DEPENDS UPON MANUFACTURE TO
MANUFACTURE
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
I am inpecting a 10kVA UPS what tests should i do and should i observe?
How to Decide(calculate) Bush bar size for copper and aluminiam ?
Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?
how many load we can take for lighting
Capacitor is load free component but why ampere meter shows current when capacitor bank breaker close?
What are IR values and what it should be for coil and for insulator
What is vaccum currcuit breaker.define with cause and where be use it device?
why HT armoured cable does not glanding
What is purpose of reactor?.What is different between line and bus reactor?
to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????
what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv
why we can stote dc? why we cant store ac?
What is the efficiency during maximum power transfer?
Why have to use copper cable for local isolator to motor ?
WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO
