Indoor High Voltage Live Display Fault Indicator
The main function
1. Short-circuit current alarm: The short-circuit current sensor detects the running high-voltage cable online during operation,
When the line current reaches or exceeds the set value (which can be adjusted before leaving the factory according to user needs), short-circuit
The sensor sends an alarm signal and transmits it to the host through the optical fiber. After the host receives the signal, it will be displayed on the panel
The corresponding alarm indication signal is issued, and some models can also send the signal directly to the main control system.
2. Ground current alarm: The ground current sensor detects the ground current of the user cable.
When the current reaches or exceeds the set value (it can be adjusted before leaving the factory according to user requirements), the ground current
The sensor sends out an alarm signal and transmits it to the host through the optical fiber. After the host receives the signal, it sends out an alarm on the panel.
Corresponding alarm indication signal, some models can also send the signal directly to the main control system.
3. Automatic reset: When the host sends an alarm signal, no one will be in 12 hours (or other customized time)
Work reset, the indicator will reset automatically.
4. Manual reset: When the indicator is in the alarm state, by pressing the reset button on the host, the alarm can be released.
Manual reset to alarm state.
5. Test: The host can perform self-test through the reset/test button on the panel, press the panel continuously
After pressing the reset/test button for about 2s, the host enters the self-built state, the indicator light on the panel lights up, and the output continues.
The electrical appliance is closed for a period of time to check that the working state is normal.
6. Temperature test and alarm (temperature measurement type): The temperature measurement type short-circuit sensor is in the working state to the high voltage cable.
The temperature is detected online and transmitted to the host LCD screen in real time when the temperature changes greatly. When the temperature exceeds
When over 60°, the host screen will flash alarm. When the master control system sends a transmission signal request, the master will
Fault and temperature signals are sent to the main control system.
Diagram
|
Product name |
Product model |
Basic function |
Remarks |
|
Fault indicator |
EKL2 |
EKL panel fault indicator is a real- |
Open hole is |
|
EKL4 |
|||
|
EKL5 |
Wireless temperature measurement |
Wiring diagram
Hole size(panel):
92.5mm ±0.3mm ×43.5mm±0.3mm
· Complete product composition:
· Main machine *1 short circuit sensor*3
· Grthing sensor*1 Four optical fibers*1
Terminal diagram
Technical parameter
Applicable voltage level: 6-35KV
Applicable load: 0-600A
Applicable wire current: I≤1000A
Applicable wire diameter: 25mm²≤d≤400mm²
Action response time: 0.06S≤T≤3S
Static power consumption: ≤10μW
Action reset time: 6, 12, 24, 36 hours optional
Ambient temperature: -40℃≤T≤+75℃
Action times: >4000 times
Ground fault pickup value: Factory default 20A, 20ms
(5-50A can be customized with an accuracy of ±10%)
Short-circuit fault start value: factory default 800A, 20ms
(300-1500A can be customized, accuracy ±10%)
Installation method and installation diagram
1. The main unit of the indicator is installed on the front panel of the power distribution cabinet
2. Install the three short-circuit current sensors on the A, B, and C phases of the cable respectively, and they must be tightly sleeved on the line to be detected.
3. Install the ground current sensor at the lower end of the three-phase cable, and its magnetic yoke should surround the three phases.
4. Structure diagram after installation:
Applications
|
product name |
product model |
basic function |
remarks |
|
|
fault indicator |
EKL2 |
|
EKL panel fault indicator is a real-time monitoring device installed on the central network switch cabinet, cable branch box and box transformer, which is used to indicate the short circuit of the corresponding cable section and single-phase ground failure |
Open hole is 92mm * 45mm |
|
EKL4 |
||||
|
EKL5 |
Wireless temperature measurement |
|||
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