Abstract
Many mining power systems have been operated with floating neutral or high resistance grounded. The earth fault current is no more than a few tens of amperes. Traditional earth fault detection methods based on zero sequence current have poor sensitivity in this case. For improvement, a fault detection scheme with fault current and fault resistance measurement is presented in the paper. It can detect high impedance grounding faults (HIGF). The scheme has been verified by EMTP simulation, and fault detection prototype has been developed and tested. Results show that the scheme has with high sensitivity and robustness.
| Original language | English |
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| Title of host publication | Conference Record of the 2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting |
| Pages | 657-661 |
| Number of pages | 5 |
| Volume | 1 |
| DOIs | |
| Publication status | Published - 1 Dec 2005 |
| Event | 2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting - Kowloon, Hong Kong, Hong Kong Duration: 2 Oct 2005 → 6 Oct 2005 |
Conference
| Conference | 2005 IEEE Industry Applications Conference, 40th IAS Annual Meeting |
|---|---|
| Country/Territory | Hong Kong |
| City | Kowloon, Hong Kong |
| Period | 2/10/05 → 6/10/05 |
Keywords
- Fault detection
- High impedance grounding faults (HIGF)
- Mining power systems
- Protective relaying
ASJC Scopus subject areas
- Control and Systems Engineering
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering