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| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Manual Type |
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The detachable arrester is the refitted zinc oxide arrester of the distribution type, and is cleverly installed on the drop-type structure of the drop-out fuse, so that the arrester can be conveniently carried out with the help of insulating brakes and rods under the condition of uninterrupted power supply. Detection, repair and replacement not only ensure the smooth flow of the line, but also greatly reduce the work intensity and time of power maintenance personnel, especially suitable for places where power failure is not suitable, such as post and telecommunications, airport stations, hospitals, bustling business districts, etc. Other properties of the product are the same as the distribution type arrester. The second-generation drop arrester adds a disconnector. When an abnormality occurs in the arrester, the power frequency short-circuit current is used to make the disconnector move, so that the grounding end of the disconnector is automatically disconnected, and the arrester element falls and exits operation to prevent further expansion of the accident. It is easy for maintenance personnel to find and repair and replace in time.
Our company adopts the most advanced RWI2 type drop mechanism in the world at present, with reliable contact, flexible opening and closing, and advanced accessories of stainless steel cover with composite pillars, which are anti-fouling, fast action, wide current range, and can withstand the specified current. Advantages of shock and motion loads. The product performance meets the national standard GB11032-2000 (eqvIEC60099-4:1991) "AC non-gap metal oxide arrester", JB/T8952-2005 "composite jacket non-gap metal oxide arrester for AC system", GB311.1-1997 " Insulation coordination of high-voltage power transmission and transformation equipment.
1. Small size, light weight, collision resistance, no damage to transportation, flexible installation, suitable for use in switch cabinets
2. Special structure, integral molding, no air gap, good sealing performance, moisture-proof and explosion-proof
3. Large creepage distance, good water repellency, strong dirt resistance, stable performance and reduced operation and maintenance
4. Zinc oxide resistor with unique formula, small leakage current, slow aging speed and long service life
5. The actual DC reference voltage, square wave current capacity and high current tolerance are higher than the national standard
Power frequency:48Hz ~60Hz
-Ambient temperature:-40°C~+40°C
-Maximum wind speed: not exceed 35m/s
-Altitude: not exceed 2000m
-Earthquake intensity: not exceed 8 degrees
-Ice thickness: not exceed 10 meters.
-Long-term applying voltage does not exceed the maximum coutinuous operating voltage.
The production standard of the product is GB11032-2000 (eqv IEC60099-4:1991) "AC No-gap Metal Oxide Surge Arrester", JB/8952-2005 "Composite Jacket No-gap Metal Oxide Surge Arrester for AC System"
1. The arrester should be stored in a clean and dry room before installation and use. Must not be corroded by corrosive gases or liquids.
2. Before the arrester is put into operation, a preventive test should be carried out. After being put into operation, it should also be regularly (10KV and below arrester once every 5 years, 35KV and above arrester once every 2 years)
Do the following test and compare with the data before operation with reference to the attached table:
a. Measure the insulation resistance of the arrester
b. Measure the DC 1mA voltage of the arrester
c. Measure the leakage current of 0.75 times DC 1mA
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