... . 2,Unlike DC test, 0.1HZ Digital Very-low-Frequency High Voltage TesterThe new generation of AC withstand tester, replacing ... manufacture of independent intellectual property rights according to power standard4. Multi-frequency selections (0.1Hz,0.05Hz,0.02Hz) strengthen the load ... voltage ratings: 30KV, 40KV,50KV,60KV,70KV, 80kV,90KV2. Output frequency: 0.1Hz, 0.05Hz, 0.02Hz3. Measurement accuracy: 3% ...