15kV High Voltage Digital Insulation Resistance Megohmmeter | XHMR-15KVA
The XHMR-15KVA high voltage insulation resistance tester, also known as a megohmmeter, is designed for measuring the resistance values of various insulating materials as well as the insulation resistance of transformers, motors, cables, generators and other electrical equipment. It features a step-voltage adjustment function that outputs multiple distinct voltage levels, enabling the 15kV model to produce a 12kV output for an even wider range of field applications.
Applications & Target Audience: Engineered for power equipment manufacturers conducting factory acceptance testing, third-party electrical testing and certification laboratories, electrical equipment repair and refurbishment workshops, and university electrical engineering laboratories that require precise insulation diagnosis on transformers, motors, cables, generators and capacitors.
Key Specifications
| Parameter |
Specification |
| Functions |
Insulation Resistance Testing, Voltage Testing, DC Current Testing, Capacitance Testing |
| Reference Conditions |
23°C ± 5°C, ≤ 75% RH |
| Rated Voltage |
500V, 1000V, 2500V, 5000V, 10kV, 15kV (six levels) |
| Insulation Resistance Range |
0.01MΩ – 50TΩ |
| Resolution |
0.01MΩ |
| Measurement Voltage |
Rated Voltage × (1 ± 10%) |
| DC Voltage Range |
0 – 1000V, Resolution 0.1V |
| AC Voltage Range |
0 – 750V, Resolution 0.1V |
| DC Current |
0.1nA – 6mA, Resolution 0.1nA |
| Capacitance |
10nF – 50μF, Resolution 10nF |
| Output Short-Circuit Current |
≥ 6mA @ 15kV |
| PI / DAR Measurement |
Supported (15s / 30s / 10min modes) |
| Data Storage |
500 groups, "FULL" indication when full |
| Power Supply |
12.6V rechargeable lithium battery |
| Display |
4-digit large LCD, 108mm × 65mm, gray-white backlight |
| Auto Power Off |
15 minutes of inactivity |
| Dimensions |
240mm × 188mm × 85mm |
| Weight |
2750g (including battery) |
| Safety Standards |
IEC61010-1, IEC1010-2-31, IEC61557-1/5, IEC60529 (IP54), CAT III 300V |
| Working Temperature & Humidity |
-10°C to +50°C, < 85% RH |
| Storage Temperature & Humidity |
-15°C to +55°C, < 90% RH |
Key Features
- Six selectable test voltage levels from 500V to 15kV with 50V / 5V step adjustment for flexible field use
- Wide insulation resistance range from 0.01MΩ to 50TΩ with 0.01MΩ resolution
- Built-in PI (Polarization Index) and DAR (Dielectric Absorption Ratio) measurement for moisture and insulation condition diagnosis
- High output short-circuit current ≥ 6mA at 15kV for fast, stable readings on large-capacitance equipment
- Protection functions for short circuits, overloads and low battery voltage
- Residual voltage display upon completion of testing for operator safety
Advanced Features
- 500-group data storage with lock, review and delete functions
- USB interface with PC monitoring software for data upload, saving and printing
- Large 4-digit LCD with controllable gray-white backlight, suitable for dark environments
- Audible and visual alarm when readings exceed or fall below set values
- Rugged anti-vibration, anti-dust and anti-moisture construction
- Automatic power off after 15 minutes of inactivity and low battery indication
This instrument provides quality engineers with a reliable, comprehensive solution for insulation condition assessment of high-voltage electrical assets, helping prevent catastrophic failures through early detection of insulation degradation.
FAQ
Q1: Who is this high voltage insulation resistance tester designed for?
It is designed for power equipment manufacturers performing factory acceptance testing, third-party electrical testing and certification laboratories, electrical equipment repair and refurbishment workshops, and university electrical engineering laboratories that inspect insulation conditions of transformers, motors, cables, generators and capacitors.
Q2: What voltage levels and measurement range does the XHMR-15KVA provide?
It provides six rated voltage levels: 500V, 1000V, 2500V, 5000V, 10kV and 15kV, with a wide insulation resistance range from 0.01MΩ to 50TΩ and 0.01MΩ resolution. The step adjustment function allows fine voltage tuning, such as a 12kV output from the 15kV model.
Q3: Does it support PI (Polarization Index) and DAR (Dielectric Absorption Ratio) testing?
Yes. The tester automatically calculates PI and DAR values with selectable 15-second, 30-second and 10-minute test modes, helping engineers judge whether insulation is moist or degraded, a key indicator for transformer, generator and cable maintenance.
Q4: How is test data stored and exported?
The instrument stores up to 500 groups of data with lock, review and delete functions. A USB interface and PC monitoring software are included, allowing data to be uploaded to a computer for saving and printing.
Q5: What power supply, safety and delivery terms apply?
The tester is powered by a 12.6V rechargeable lithium battery with low-battery indication and 15-minute auto power off. It complies with IEC61010-1, IEC61557-1/5 and IP54, CAT III 300V safety requirements. Standard delivery includes wooden packaging within 8-10 days, with T/T payment and 1 unit MOQ.
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