1Product model / - / YH5WZ-26/66 / YH5WZ-32/85 / HY5WZ-34/85 / YH5WX-34/90
2System nominal voltage / kV / 20 / 20 / 20 / 20
3Arrester rated voltage / kV / 26 / 32 / 34 / 34
4Continuous operating voltage / kV / 20.8 / 25.6 / 27.2 / 27.2
5Nominal discharge current In / kA / 5 / 5 / 5 / 5
6DC 1 mA reference voltage / kV / ≥37 / ≥47 / ≥48 / ≥50
70.75U1mA leakage current / μA / ≤10 / ≤10 / ≤10 / ≤10
8Steep-wave impulse residual voltage / kV / ≤76 / ≤95 / ≤95 / ≤104
9Lightning impulse residual voltage / kV / ≤66 / ≤85 / ≤85 / ≤90
10Switching impulse residual voltage / kV / ≤56 / ≤75 / ≤75 / ≤80
11Partial discharge at 14.3 kV / pC / ≤10 / ≤10 / ≤10 / ≤10
122 ms square-wave impulse current withstand / A / 150 / 150 / 200 / 150
13High current impulse withstand / kA / 65 / 65 / 80 / 65
Rated voltage24 kV
Applicable bushing type (front plug)Type C
DC withstand voltage76 kV/15 min
Power-frequency withstand voltage (AC)57 kV/5 min
Partial discharge25.4 kV, ≤5 pC
Impulse voltage (10 times each for positive and negative polarity)125 kV
Shielding resistance≤5000 Ω
Applicable cable cross-section25-500 mm²
No.Item / Unit / Parameter