The impulse voltage generator is mainly used for power equipment and other test products to carry out the lightning impulse voltage full wave, lightning impulse voltage cut-off wave and operating impulse voltage wave to test the insulation performance.
The ratio of the output voltage amplitude V2m of the impulse voltage generator to the charging voltage V is called the generator efficiency , that is,
= (V2m / nV) × 100%
For lightning shock waves, is generally about 80%; for operational shock waves, is sometimes only 60%.
The impulse voltage waveform parameters T1 (Tcr), T2 and generator efficiency are related to the circuit structure and parameters, and need to be adjusted and determined through actual debugging.
For power transformers, etc. with windings
Nominal voltage: ± 300kV-4800kV class voltage: ± 150kV-1200kV
Capacitance: 0.325-1.0F Impact energy: 7.34-480 kJ
Nominal Voltage (kV) | Impulse Capacity (F) | Series Capacity (F) | Impluse (kJ) | Series Voltage (kV) | Series | H (mm) | H1 (mm) | H2 (mm) | Weight (kg) |
300 | 0.1625 | 0.325 | 7.31 | 150 | 2 | 1461 | 840 | 420 | 547 |
0.25 | 0.5 | 11.25 | 611 | | | | | | |
450 | 0.1083 | 0.325 | 10.97 | 3 | 1881 | 1260 | 420 | 694 | |
0.16666 | 0.5 | 16.87 | 758 | | | | | | |
600 | 0.08125 | 0.325 | 14.63 | 4 | 2301 | 1680 | 420 | 842 | |
0.125 | 0.5 | 22.5 | 906 | | | | | | |
750 | 0.065 | 0.325 | 18.28 | 5 | 2721 | 2100 | 420 | 1006 | |
0.1 | 0.5 | 28.13 | 1166 | | | | | | |
900 | 0.0542 | 0.325 | 21.95 | 6 | 3141 | 2520 | 420 | 1186 | |
0.0833 | 0.5 | 33.74 | 1378 | | | | | | |
1050 | 0.0464 | 0.325 | 25.58 | 7 | 3561 | 2940 | 420 | 1366 | |
0.0714 | 0.5 | 39.36 | 1697 | | | | | | |
1200 | 0.0406 | 0.325 | 29.23 | 8 | 3981 | 3360 | 420 | 1545 | |
0.0625 | 0.5 | 45 | 1801 | | | | | | |
