In low-voltage networks, earth fault loop impedance (EFLI) measurement is the basis for assessing the effectiveness of automatic disconnection of supply. Such a measurement is performed during initial and periodical verification, especially in a TN low-voltage network. Nowadays, due to widespread application of residual current devices (RCDs), such test is difficult in many circuits because RCDs operate during the test. In this paper a method of EFLI measurement, without unwanted tripping of RCDs, is proposed. This method enables the measurement of EFLI using a relatively high value of full-wave testing current. It is recommended in terms of accuracy of the measurement.
Authors
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1109/paee.2018.8441050
- Category
- Aktywność konferencyjna
- Type
- materiały konferencyjne indeksowane w Web of Science
- Language
- angielski
- Publication year
- 2018
