Product

Rated voltage 3.8-220kV AC gapless composite jacket zinc oxide arrester is an important protective device used to protect AC power transmission and transformation equipment from atmospheric overvoltage and operating overvoltage damage. It is suitable for indoor and outdoor use.

1. Ambient temperature is - 50°C ~ + 50C;

2. Altitude does not exceed 1000m;

3. The power frequency voltage applied to the arrester for a long time should not exceed its continuous operating voltage;

4. The maximum wind speed does not exceed 45m/s;

5. Areas with a seismic intensity of 7 degrees or less.

①. GB 11032 AC gapless metal oxide arrester

②. GB /T 16434 High-voltage overhead lines and power plants, substations environmental pollution zone classification and external insulation

③. GB50260 Code for seismic design of power facilities

④. JB/T7617 Sulfur hexafluoride tank-type gapless metal oxide arrester

⑤. JB/T8952 Composite jacket gapless metal oxide arrester for AC system

⑥. JB/T10497 Composite jacket metal oxide arrester with series gap for AC system

⑦. IEC 60099-4 AC gapless metal oxide arrester

⑧. Cigre33/14.05 Guidelines for the use of gapless metal oxide arresters in high-voltage DC converter stations

1. DC reference voltage test (U1mA);

2. DC leakage current test at 0.75U1mA;

3. Partial discharge test;

4. Sealing performance test;

5. Continuous current test;

6. Power frequency reference voltage test (under resistive current 1mA);

7. Residual voltage test at nominal current;

8. Appearance inspection.

1. Product model

2. Structural type

3. Environmental requirements (pollution level, altitude, etc.)

4. Required accessories (counters, monitors, disconnectors, etc.)

5. Other special requirements beyond those specified in the standard