| Title: | Calibration of instrument current transformers at low currents using lock-in amplifier |
| Authors: | Draxler, Karel Styblíková, Renata |
| Citation: | 2017 International Conference on Applied Electronics: Pilsen, 5th – 6th September 2017, Czech Republic, p.55-58. |
| Issue Date: | 2017 |
| Publisher: | Západočeská univerzita v Plzni |
| Document type: | konferenční příspěvek conferenceObject |
| URI: | http://hdl.handle.net/11025/35408 |
| ISBN: | 978–80–261–0641–8 (Print) 978–80–261–0642–5 (Online) |
| ISSN: | 1803–7232 (Print) 1805–9597 (Online) |
| Keywords: | přístrojový proudový transformátor;lock-in zesilovač;kalibrace;poměrová chyba;fázový posun |
| Keywords in different language: | instrument current transformer;lock-in amplifier;calibration;ratio error;phase displacement |
| Abstract in different language: | A system for evaluating instrument current transformer errors using a lock-in amplifier is described in the paper. The difference between the standard and the transformer under test is evaluated as the ratio error and the phase displacement. The attention is focused to measurement of errors at the range of primary currents less than 20% of the nominal value. The measurement accuracy of current and energy in smart grids is important particularly at the time when the majority of appliances are in the standby mode. |
| Rights: | © Západočeská univerzita v Plzni |
| Appears in Collections: | Applied Electronics 2017 Applied Electronics 2017 |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Draxler.pdf | Plný text | 239,9 kB | Adobe PDF | View/Open |
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