| 摘要 |
FIELD: instrumentation engineering; testing insulation of local low- voltage circuits. SUBSTANCE: proposed device has power supply connection unit, ac test voltage generating unit, dc test voltage generating unit, series-connected capacitors and discharger connected across one of them to form composite test pulse voltage generating unit, as well as output terminals. EFFECT: enhanced efficiency of detecting faulty sections in low-voltage insulation; reduced size and mass of device. 1 cl, 1 dwg |
