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Portable insulation resistance meter GM-5kV
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Characteristics
- Type
- portable
Description
Overview
Key features
Resistance measurement ranges and accuracy
Technical specifications
Timing and alarm functions
Included documents & names
- The GM-5kV Insulation Resistance Tester is a portable high-voltage megohmmeter designed for HV substations and power plants to measure insulation resistance of large HV transformers, electrical machines and power cables even in high-interference environments.
- Provides adjustable high-voltage output, wide resistance measurement range, timing and alarm functions to support absorption ratio and polarization index analysis.
Key features
- Strong anti-interference capability: electric-field induction anti-interference up to 2 mA (50/60 Hz).
- Large short-circuit current (typical value 10 mA), suitable for testing large capacitance and high-inductance equipment.
- Wide resistance measurement range with high resolution and accurate readings.
- Adjustable high-voltage output levels: selectable 0.1 kV, 0.25 kV, 0.5 kV, 1 kV, 2.5 kV and 5 kV; smooth adjustment from 0 V to required voltage.
- Acousto-optic reminders and timing functions to assist recording and analysis (absorption ratio, polarization index).
- Imported key components to ensure measurement stability and accuracy.
- Portable integrated case: compact, lightweight and easy to carry; robust materials for field use.
Resistance measurement ranges and accuracy
- 20 MΩ range: 0.01 – 19.99 MΩ — accuracy ±(5% + 3 digits).
- 200 MΩ range: 5.0 – 199.9 MΩ — accuracy ±(5% + 3 digits).
- 2000 MΩ range: 50 – 1999 MΩ — accuracy ±(5% + 3 digits).
- 20 GΩ range: 0.5 – 19.99 GΩ — accuracy ±(5% + 3 digits).
- 200 GΩ range: 5.0 – 199.9 GΩ — accuracy ±(10% + 3 digits).
- 2000 GΩ range: 50 – 1999 GΩ — accuracy ±(20% + 10 digits).
Technical specifications
- Model: GM-5kV
- Brand: UHV Power (Wuhan UHV Power Technology Co., Ltd.)
- Output voltage levels: 0.1 kV, 0.25 kV, 0.5 kV, 1 kV, 2.5 kV, 5 kV (adjustable smoothly from 0 V to required voltage).
- Test voltage accuracy: ±(5% + 10 V).
- Short-circuit current: Typical value 10 mA.
- Display: Three 3½-digit LCD digital meter heads showing test voltage, resistance and time respectively.
- Power supply: Built-in rechargeable lithium battery, DC 15 V; AC (50/60 Hz) adapter port for charging.
- Operating environment: Temperature -20 °C to +40 °C; relative humidity 20% – 90%.
- Dimensions (L × W × H): 315 × 240 × 180 mm.
- Weight: 5.5 kg.
Timing and alarm functions
- Stopwatch displays up to 19 minutes 59 seconds (cycles every 20 minutes).
- Audible prompts at 15 s, 60 s and every minute; short beep at these points with resistance reading held for 3 seconds.
- Continuous audible alarm if reading is invalid or below the lower limit of the selected range.
Included documents & names
- Nicknames: Insulation Resistance Tester; Insulation Meter.
- Documentation available on product page: User Manual (PDF) and Calibration Certification (PDF).
Catalogs
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Insulation Resistance Tester
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.