- Phone
-
Address
No. 4, Third Street, Cuizhu Industrial Zone, Qianshan, Zhuhai City, Guangdong Province
Zhuhai Guoce Electric Energy Instrument Technology Co., Ltd
No. 4, Third Street, Cuizhu Industrial Zone, Qianshan, Zhuhai City, Guangdong Province
|
Product Features |
Intelligent detection of short circuits and grounding faults and corresponding actions through the panel;
LED indicates;
The panel adopts a membrane switch design, which facilitates resetting and self checking of the fault indicator device on site;
The pulse width time of the fault current can be set to prevent erroneous fault indication caused by surge current;
Can remotely reset and detect the fault indicator device;
It can provide switch values for external devices through remote signaling contacts;
Short circuit and ground fault automatic reset time can be pre-set;
Remote fault indication can be achieved through external devices;
Can set the short-circuit fault action current value;
Can set the grounding fault action current value;
Lithium battery power detection function;
RS-485 communication function (optional).
| Application |
This series of products can be widely used in various ring main units, high-voltage switchgear, and cable branch boxes in the power system, and can accurately and reliably detect the sections and types of faults in the power grid. The use of cable type short circuit and ground fault indicators is an efficient method for detecting cable faults and an effective way to improve the operation level and accident handling efficiency of the distribution network. Its design adopts technologies such as electromagnetic induction, photoelectric conversion, signal fiber transmission, and microcontroller control to make fault alarms highly accurate and have strong anti-interference ability; Equipped with a remote fault transmission port, suitable for distribution network automation; Equipped with a low battery warning indicator; Low power design, powered by high-capacity lithium batteries, with a long battery life (over 8 years); The external structure adopts card or lock design, making the whole machine easy to install and disassemble.
| TECHNICAL INDEX |
| Applicable voltage level | 3~40.5kV | ||
| Rated frequency | 50 Hz | ||
| Short circuit alarm current | 200A~1200A | ||
| Grounding alarm current | 10A~200A | ||
| Alarm current accuracy | ±10% | ||
| Rated power frequency withstand voltage | 2kV/1min | ||
| Relay contact capacity | ≤95W | ||
| Automatic reset time | Four adjustable gears | 2H/4h/8h/24h | |
| Working power supply | ER14505 lithium battery | 3.6 V/2400mAh | |
| Working current | standby mode | ≤10μA | |
| working condition | ≤1mA | ||
| indicator | host | IP40 | |
| protection grade | Transducers | IP65 | |
| Battery working life | ≥ 8 years | ||
| Low battery warning voltage | ≤2.7V | ||
| Short circuit sensor fiber length | 2.5 meters, customizable | ||
| Grounding sensor fiber length | 3 meters, customizable | ||
|
Prevent load fluctuations and avoid them Setting of surge avoidance time |
Short-circuit fault | 40ms, 60ms, 80ms, 160ms (optional) | |
| ground fault | |||
| work environment | temperature | -40C~+60℃ | |
| humidity | ≤95%RH | ||
| Applicable cable outer diameter | Short circuit sensor (fiber optic) | type a | ¢ 20mm~40mm conventional |
| type B | ¢ 30mm~70mm Specific | ||
| Grounding sensor(Fiber optic) | type a | ¢ 60mm~100mm conventional | |
| type B | ¢ 80mm~130mm Specific | ||
| Compliant with the industrial standard MODBUS communication protocol | |||
|
Outline dimension diagram |

|
Wiring Terminal Diagram |
