- Contact Person : Ms. Ning Shirley
- Company Name : Beijing HCRT Electrical Equipment Co., Ltd.
- Tel : 86-10-87576108-8010
- Fax : 86-10-87576108-8015
- Address : Beijing,Beijing,Room 2710, Building NO.3, No.16 Nan Sanhuan West Road, Fengtai District, Beijing.
- Country/Region : China
- Zip : 100068
Overhead line fault indicator
overhead high voltage line fault indicator
Description
Fault indicator is installed on the over-head lines, power cables and the busbars of the switch cabinet to indicate the fault current path. When line fault comes, the line inspector can determine the fault section, fault branch and fault point quickly by the alarm display on the indicator. It changes completely the methods of blind line inspection and finding the fault area through switching on one area after another in the past. Thus, it reduces the area and time of power outage and improves the reliability of the power supply.
Function features
♦ Fault indicator is installed directly on the power overhead lines, cables and busbars. It can be operated outside for a long term without maintenance
♦ Indicate directly and accurately the branch and section of the fault point, thus can shorten the time to find the fault point
♦ When a failure occurs, the display window shows up red or the LED alarm light flashes constantly
♦ After the action, it can reset automatically according to the time selected by the user
♦ It can be installed and removed on live line and does not affect the normal operation of circuit
♦ When transmit electric to the lines, the action loop closes to avoid malfunction of the indicator
Parameters
Technical index | Aerial earth or short-circuit fault indicator | Switchgear-type earth or short-circuit fault indicator | Aerial short-circuit fault indicator | Cable-type short-circuit fault indicator |
Model | ESI-I | ESI-II | SFI-I | SFI-II |
Fault type | earth/short-circuit | earth/short-circuit | Short-circuit | Short-circuit |
Applicable Voltage grade | 6-66kV | 6-66kV | 6-66kV | 6-66kV |
Applicable wire cross-section | 16-400 mm2 | 16-400 mm2 | 16-400 mm2 | 16-400 mm2 |
Standard reset time | Adjustable | Adjustable | Adjustable | Adjustable |
Times of actuating | Over 5000 | Over 5000 | Over 5000 | Over 5000 |
Static power consumption | 1uA | 1uA | 1uA | 1uA |
Applicable ambient temperature | –35°C~70°C | –35°C~70°C | –35°C~70°C | –35°C~70°C |
Relative humidity | Daily mean ≤95% | Daily mean ≤95% | Daily mean ≤95% | Daily mean ≤95% |
Maximum elevation | 4000m | 4000m | 4000m | 4000m |
Contamination grade | IP68 | IP68 | IP68 | IP68 |
Indication mode | Red flag | LED flash light | Red flag | LED flash light |
Sincerely,
Jessie
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Overhead line fault indicator