Interested to Buy Any Domain ? << Click Here >> for more details...
What is the Different between CT Class-0.2 & Class-0.2s ?
- 3 Answers
- 39352 Views
- I also Faced
- E-Mail Answers
Answer Posted / sam
Accuracy class of 0.2 means +/- 0.2 % error. But, the
declared accuracy is guaranteed only between 100% & 120%
rating. And, with some increased error, the CT performance
can be guaranteed from 5% loading. Below this load, the
error is not guaranteed. It can be anything.
Normally these classes of accuracy are used for Tariff
Metering by the Utility Company.
In large industrial projects, the project would be
commissioned in steps only. In such a case, initially the
loading will be very low. If the tariff metering CT errors
are haphazard, it may not be acceptable either to the
supplier (in case of negative error) or to the consumer (in
the case of positive error). And the magnitude can be quite
large, say, with a sanctioned demand of 10MVA, even 1%
error means 100kVA.
To cater to such situations, Standards have introduced two
new accuracy classes, 0.2S & 0.5S for tariff metering
purposes. These special CTs guarantee the declared
accuracy, even with 20% loading. And some definite error
can be defined even with a load as low as 1%. Thus they are
suitable for industries where loads are commissioned in
steps or stages.
| Is This Answer Correct ? | 44 Yes | 5 No |
Post New Answer View All Answers
What is the difference IN MCCB's between thermal magnetic and electronic tripping system ?
draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups
how to control the speed to switched reluctance motor
if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side
Why 1/3 is used in symmetrical components?
What happened when capacitor connect series in ac circuit?
What is the Temperature to be set in Thermostat provided in Marshalling box of the Transformer / Motor.
1. what is usage for power factor in industries?? 2.why we need to monitor power factor??
what are the stresses in circuit breakers ?
What is core CT & it's function?
Igfet is a
Anybody tell me about modbus hex address of l&t trivector meter er300p??I want to read voltage,current,kwh etc via rs485...If anybody have a manual then send on my mail..Brijeshmodi18@gmail.Com
HOW TO TEST A LIGHTENING ARREST ER ?
How many double suspension hardware fittings are required on a double circuit transmission tower?
Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?
