Insulation resistance tester HZJY-20K 20kV

for electrical appliancesfor cablesfor transformers

• Test voltage ranges: 500V, 1000V, 2500V, 5000V, 10000V, 15000V, 20000V • Insulation resistance up to 20TΩ @20kV • Short-circuit current: adjustable, max 5mA (10mA optional) • Automatic PI, DAR, leakage current and capacitance measurement • Capacitance test range: up to 20µF, accuracy ±(15%+0.03µF) • Power supply: AC220V ±10% 50/60Hz or 16.8V lithium-ion battery • Battery life: 4 hours @10000V/100MΩ load • Weight: 3.6kg, size 37×27×17cm, IP64 protection The Huazheng HZJY-20K Insulation Resistance Tester is a high-voltage instrument capable of testing insulation resistance up to 20TΩ at 20kV. With seven selectable voltage ranges and manual regulation, it provides flexibility for demanding insulation diagnostics. Fully compliant with IEC 61010-1, IEC 61326, and IEC60529 standards, the tester offers adjustable short-circuit current up to 5mA, with an option for 10mA. Advanced digital filtering ensures stable results, while dual power options—AC mains or rechargeable lithium battery—support reliable field or lab use. With a runtime of up to four hours at 10kV, robust protection functions, and fuse prompts, the HZJY-20K guarantees both safety and performance. Compact and portable at 3.6kg, equipped with a clear display and solid build, it is ideal for substations, utilities, industrial plants, and research institutes requiring accurate, efficient, and safe high-voltage insulation testing.