Adaptation voltage: 6~35KV, (110kV, 220kV specific)

Applicable wire section: (5~980) mm²

Fault display mode: red window to white window

Wire clamping structure: double pin bolt type, single compression spring type, double compression spring type

Product Introduction

The HYEKL-4 short-circuit and ground fault indicator is a real-time monitoring device installed on the ring network switch, cable branch box, and box change in the distribution network system to indicate the short circuit and single-phase ground fault of the corresponding cable section. . When the line fails, the worker can use the indicator's alarm indication to quickly determine the faulty section and find the point of failure. At the same time, the alarm information can be sent to the server of the monitoring center in real time, the area and specific location of the fault are displayed on the screen of the monitoring computer, and the line inspector is guided to quickly determine the faulty section and find the fault point.

The main function

1. The short-circuit alarm indicates that the short-circuit sensor detects the current of the line during operation, and when the line has a short-circuit fault, the current reaches or exceeds the setting of the short-circuit current

When on duty, the short-circuit sensor sends out an alarm signal, which is transmitted to the host via a wire (optical fiber). After the host receives this signal, it generates a corresponding alarm signal.

2. The ground sensor receiver detects the zero-sequence current of the line during work. When the ground current reaches or exceeds the setting value of the ground current when the line has a ground fault, the ground sensor sends an alarm signal, which is transmitted to the host through the wire (optical fiber), and the host receives After this signal, a corresponding alarm indication signal is generated.

3. The low-voltage alarm indicates that the host is powered by a battery. When the battery voltage is lower than the normal voltage, a voltage alarm indicator will be generated to remind the staff to replace the battery.

4. Automatic reset. After the indicator sends out an alarm signal, if there is no manual reset, the indicator can automatically reset after the set time.

5. Manual reset. When the indicator generates an alarm, the alarm can be released by pressing the "reset/test" button on the panel of the indicator host for 2 seconds.

6. Automation: After the indicator generates the corresponding alarm indication signal, the alarm signal can be output and transmitted remotely. The indicator can also receive a remote reset signal to perform remote reset operation on the indicator.

7. Test: The indicator can perform self-checking work.

Technical Parameters

1. Short-circuit current alarm: The error of 200A-1000A is ±10%, and the factory setting is greater than 20ms when 800A is short-circuited.

2. Grounding current alarm: 10A-150A error ±10%, the factory setting is that the grounding delay of 20A is greater than 200ms.

3. Working power supply: ER14505 battery 3.6V (validity period is not less than 8 years)

4. Standby current of the whole machine: ≤5μA

5. Automatic reset time: 4, 8 (default), 12, 16 hours, etc. are optional.