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Calibration & Measurement Facilities For AC High Current & High Voltage Ratio Standards At NPL
| Content Provider | CSIR - National Physical Laboratory (NPL) |
|---|---|
| Author | Gupta, S. R. |
| Abstract | Regular calibration of the Instrument Transformers (ITs) is very essential for the accurate measurement of power and energy at high voltages. ITs are also used in the measurement of high currents & high voltages at power frequencies. The nominal transformation Of an IT depends only on the number of turns of its windings but due to various losses there are always errors in the Instrument Transformers' ratios. The correct knowledge of their errors requires calibrations of the ITs. In this paper the methods used in calibrating the Current Transformers (CTs) & Potentia! Transformers (PTs) and the required accuracy have been discussed. |
| Related Links | http://npl.csircentral.net/411/1/17.pdf |
| Starting Page | 29 |
| Ending Page | 39 |
| Page Count | 11 |
| File Format | |
| ISSN | 09749853 |
| Volume Number | 24 |
| Issue Number | 1 |
| Journal | MAPAN - Journal of Metrology Society of India |
| Language | English |
| Publisher | Springer Verlag |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Instruments/ Instrumentation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
