What is the class of current transformer?
Table of Contents
What is the class of current transformer?
Current transformers are divided up into classes according to their precision. Standard precision classes are 0.1; 0.2; 0.5; 1; 3; 5; 0.1 S; 0.2 S; 0.5 S. The class sign equates to an error curve pertaining to current and angle errors. The precision classes of current transformers are related to the measured value.
What is a class C current transformer?
Classification C or K covers current transformers in which the leakage flux in the core does not have an appreciable effect on the ratio or ratios within the limit of current and burden. K classification shall have a knee-point voltage of at least 70 percent of the secondary terminal voltage rating (IEEE C57.
What is CT 50?
Metspot CT 50 mg Tablet is a combination of two blood-pressure lowering medicines: Metoprolol Succinate and Chlorthalidone. Metoprolol Succinate is a beta blocker which works specifically on the heart to reduce heart rate and make the heart more efficient at pumping blood throughout the body.
What is 5P10 class CT?
If you see the specification or name plate of a protection class CT, you will find that it is given like 5P10. This CT can be interpreted as a protection class CT having an accuracy of 5% over a current range of 10 times of normal primary current rating.
What is PX class in CT?
PS Class CT is also known as PX Class or simply Class X Current Transformer. It is special type of current transformer meant for protection purpose. Various protection class CTs as described in IS 2705 part-3 is only useful for overcurrent protection. You may refer Accuracy Class of CT for detail.
What is class 0.5 accuracy?
This is known as “Accuracy Class”. Class 0.5 means that the accuracy is 0.5% of the reading under full load and unity power factor, similar to 0.5% FS above, yet sets a standard for accuracy under lower (typical) loads and different power factor.
How do I choose a CT ratio?
Important Points for Selecting a CT
- Current Transformer Output.
- Conductor Size.
- Load Size or Amperage Range.
- Accuracy Rating.
- Form Factor.
- Regulatory Requirements.
- Using Rogowski Coils.
What is 5P in current transformer?
The Number ‘5’ indicates the accuracy of the CT. When the current flows through the 5P20 protection class CT is 20 times of the rated primary current, the CT reads within the composite error of 5 %. If the current is above 20 times then the CT will saturate.
