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Gapless ZnO surge arrester:
The Zinc Oxide surge arrester protects the electrical equipment in AC power systems against damaging atmospheric over-voltage and operating over-voltage.
The surge arresters comply with IEC60099-4&IEEE.C62.11 standard technical requirements.
Working conditions
1. The ambient air temperatures is no higher than + 0°C, no lower than -40°C.
2. The altitude above sea level does not exceed 1000-2000m (the plateau area should be indicated when order).
3. AC system frequency 50Hz or 60Hz.
4. Power frequency voltage brought to bear on arrester for a long time does not exceed arrester's continuous operation voltage.
5. Maximum wind speed does not exceed 35m/s.
6. The earthquake intensity does not exceed 7 degrees.
Basic data:
5KA Nominal discharging class
Model | Rated voltage (KV) | MCOV (KV) | Residual voltage (KV) | 2000μs square wave impulse withstand | 4/10μs high current impulse | ||
Steep current impulse | Switching current impulse | 8/20μs lightning current impulse | |||||
HY5W-3 | 3 | 2.55 | 9.5 | 7.7 | 9 | 100A | 65KA (crest) |
HY5W-6 | 6 | 5.1 | 19.0 | 15.4 | 18 | ||
HY5W-9 | 9 | 7.65 | 28.5 | 23.1 | 27 | ||
HY5W-12 | 12 | 10.2 | 38.0 | 30.8 | 36 | ||
HY5W-15 | 15 | 12.7 | 47.5 | 38.5 | 45 | ||
HY5W-18 | 18 | 15.3 | 57.0 | 46.2 | 54 | ||
HY5W-21 | 21 | 17.0 | 66.5 | 53.9 | 63 | ||
HY5W-24 | 24 | 19.2 | 76.0 | 61.6 | 72 | ||
HY5W-27 | 27 | 21.9 | 85.5 | 69.3 | 81 | ||
HY5W-30 | 30 | 24.4 | 95.0 | 76.5 | 90 | ||
HY5W-33 | 33 | 26.8 | 104.5 | 84.7 | 99 | ||
HY5W-36 | 36 | 29.0 | 114.0 | 92.4 | 108 | ||
HY5W-42 | 42 | 34.1 | 132.3 | 100.1 | 126 | ||
10KA Nominal discharging class
Model | Rated voltage (KV) | MCOV (KV) | Residual voltage (KV) | Line discharge class | 4/10μs high current impulse | ||
Steep current impulse | Switching current impulse | 8/20μs lightning current impulse | |||||
HY10W-3 | 3 | 2.55 | 9.5 | 7.7 | 9 | 1 | 100KA (crest) |
HY10W-6 | 6 | 5.1 | 19.0 | 15.4 | 18 | ||
HY10W-9 | 9 | 7.65 | 28.5 | 23.1 | 27 | ||
HY10W-12 | 12 | 10.2 | 38.0 | 30.8 | 36 | ||
HY10W-15 | 15 | 12.7 | 47.5 | 38.5 | 45 | ||
HY10W-18 | 18 | 15.3 | 57.0 | 46.2 | 54 | ||
HY10W-21 | 21 | 17.0 | 66.5 | 53.9 | 63 | ||
HY10W-24 | 24 | 19.2 | 76.0 | 61.6 | 72 | ||
HY10W-27 | 27 | 21.9 | 85.5 | 69.3 | 81 | ||
HY10W-30 | 30 | 24.4 | 95.0 | 76.5 | 90 | ||
HY10W-33 | 33 | 26.8 | 104.5 | 84.7 | 99 | ||
HY10W-36 | 36 | 29.0 | 114.0 | 92.4 | 108 | ||
HY10W-42 | 42 | 34.1 | 133.0 | 100.1 | 126 | ||
HY10W-48 | 48 | 39 | 152.0 | 126.0 | 150 | ||
HY10W-54 | 54 | 43 | 171.0 | 139.0 | 162 | ||
HY10W-60 | 60 | 48 | 208.0 | 160.0 | 180 | ||
HY10W-66 | 66 | 52.8 | 230.0 | 172.0 | 198 | ||