15kV Digital Megohmmeter Insulation Resistance Tester 0.01MΩ-50TΩ Six Test Voltages PI DAR Measurement | XHMR-15KVA

This instrument is designed for measuring the resistance values of various insulating materials, as well as the insulation resistance of transformers, motors, cables, and other electrical equipment. Additionally, it features a step-voltage adjustment function, enabling it to output multiple distinct voltage levels (for instance, the 15kV model can generate a 12kV output, thereby offering a wider range of application).

• Includes protection functions for short circuits, overloads, low battery voltage, etc.
• Supports Insulation Testing, Absorption Ratio, Polarization Index, and Quick Test modes.
• Displays residual voltage upon completion of testing.
• The instrument automatically powers off after 15 minutes of inactivity.

Unlike ordinary low-voltage megohmmeters designed for general electricians, the XHMR-15KVA is engineered for professionals who maintain high-voltage electrical assets. It is the working tool for power utility engineers, substation and transformer maintenance teams, high-voltage cable testing crews, generator overhaul specialists, and EPC contractors who need reliable insulation diagnosis on transformers, motors, generators, cables and capacitors rated up to 15kV. It is also widely used in telecom stations, data centers, weather stations and oil fields where continuous operation of critical electrical equipment must be guaranteed.

• Six test voltage levels up to 15kV (500V, 1000V, 2500V, 5000V, 10kV, 15kV) with 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.
• 500-group data storage with USB interface and PC monitoring software for 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 compliant with IEC61010-1, IEC61557-1/5 and IP54, CAT III 300V.

This tester provides six test voltage levels up to 15kV and measures insulation resistance up to 50TΩ, which is essential for preventive maintenance of high-voltage transformers, generators and cables. Common low-voltage testers cannot energize large-capacitance equipment reliably, while the XHMR-15KVA delivers ≥6mA short-circuit current at 15kV for stable readings.

It is suitable for transformers, motors, generators, cables, capacitors, switchgear and other electrical equipment, as well as general insulating materials. It also measures DC/AC voltage, DC current and capacitance, making it a versatile field instrument for utility and industrial maintenance teams.

Yes. The tester automatically calculates PI and DAR values with selectable 15-second, 30-second and 10-minute test modes, helping you judge whether insulation is moist or degraded — a key indicator for transformer and generator maintenance.

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.

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 the tester, high-voltage probe, test leads, USB cable, charger, monitoring software and wooden packaging, with 8-10 days delivery and T/T payment.