YIKA Metal Zinc oxide Protection Detacher Surge Arrester Main Accessory Disconnector Manufacturer
The disconnector for the arrester is an accessory of the arrester and is used in series with the arrester. Its purpose is to use the power frequency short-circuit current flowing in the arrester to make the disconnector operate when an abnormal fault occurs in the arrester, so that the ground terminal of the disconnector is automatically disconnected, and the arrester exits the system operation to prevent the accident from further expanding, and provide the fault arrester to prevent the accident from further expanding. The visibility of the separation mark is convenient for maintenance personnel to find the fault point in time for maintenance and replacement.
When the arrester is in normal operation, the disconnector presents an AC conduction state and does not affect the original working state of the system and the protection characteristics of the arrester, ensuring the normal operation of the system.
Main Parameters:
1. Long duration current impulse 2000μs: 600A
2. High current impulse 4/10μs: 100KA
3. Current-time characteristic:
|
Current Level |
Power frequency current (A rms) |
|||||
|
800 |
300 |
20 |
5 |
0.5 |
0.05 |
|
|
Time in seconds |
<0.02 |
<0.05 |
<0.2 |
<1.0 |
<50 |
<500 |
Features:
1. Wide operating current range
2. Fast release
3. Strong resistance to inrush current
4. High mechanical strength, good sealing performance
5. Easy to install and replace
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