Line fault indicator, ground panel type EKL-4, high voltage ring main unit cable fault indicator for 10KV

Main functions:
1. Short-circuit current alarm indication: The short-circuit current sensor performs online detection of high-voltage cables during operation. When the line current reaches or exceeds the set value of the short-circuit current (which can be set according to user requirements before leaving the factory), the short-circuit sensor sends an alarm signal through optical fiber to the main unit. Upon receiving this signal, the main unit generates a corresponding alarm indication signal and can also send the signal to the main control system.
2. Grounding alarm indication: This system uses grounding sensors to detect the grounding current of user cables. When the current in the grounding circuit reaches or exceeds the set value for triggering an alarm (which can be set according to user requirements before leaving the factory), the grounding sensor sends an alarm signal to the main unit. Upon receiving this signal, the main unit generates a corresponding alarm indication signal and can also send the signal to the main control system.
3. Automatic reset system: After the indicator sends an alarm signal, if there is no manual reset within 8 hours, the indicator will automatically reset.
4. Manual reset: After the indicator triggers an alarm, the alarm can be cleared by pressing the clear button on the main unit panel to perform a manual reset.
5. Testing: This system can perform self-checks by pressing the clear button on the panel to check the functionality of the device. Pressing the clear button on the panel for 2 seconds continuously will put the device into self-check mode, causing all indicator lights on the panel to flash, indicating normal operating status.
6. Low battery alarm (Low Voltage)