how many types of accuracy class in ct? what is meaning of
5p20?
- 1 Answers
- 7057 Views
- I also Faced
- E-Mail Answers
Answer Posted / ashwini kumar
generally two type of accuracy class 5P and 10P.Here, 5P
indicates that this is the protection type of CT with
composite error of <5% at rated accuracy limit primary
current & 20 is the rated accuracy limit factor (RALF) for
the C.T. i.e. overcurrent = 10*nominal current.
[RALF is the primary current up to which the CT is required
to maintain its specified accuracy with rated secondary
burden connected expressed as a multiple of rated primary
current.]
| Is This Answer Correct ? | 7 Yes | 2 No |
Post New Answer View All Answers
Why is ignitor used in sodium vapour lamp
how to differentiate a mpcb,mcb with a contactor? Explain their working operation
How do you calculate the actual power consumption of an inductive load appliance. Say, a deep freezer of 200watts
why star point of HT motor not earthed?
Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more
it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?
What are the advantages of a three-phase system over a single-phase system?
what is the reactance,capacitance & impedence electrical armoured & unarmored Cables.
What happened if C.T mount at any cable or Bus bar in wrong direction . C.T going on proper work or not . C,T direction is essential thing to properly work.
electrical ques
how to test and calculat the head and discharge in borewell compressor
slipring induction motor starting time Lrs operating why lrs starting time lrs outer body didn't get shock
What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection
would you please give me any idea about the BARC interview question on electrical? i have an interview on 1st july.....plz hlp me.......its urgent......
Can double compression glands be used with regular cables?
