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MI-15KVe High-Voltage Insulation Tester

The MI‑15KVe is a portable high-voltage insulation resistance tester, designed to measure insulation values using test voltages up to 15 kV. It delivers accurate, safe measurements of insulation resistances up to 3,000,000 MΩ (3 TΩ) across four selectable test voltages: 1 kV, 5 kV, 10 kV, and 15 kV.

Its large analog scale allows real-time visual feedback that aids in identifying insulation behavior and failure trends. Built for use in transmission lines and medium-voltage distribution systems, this tester is a dependable diagnostic tool for locating cable faults and evaluating insulation integrity near operational voltage levels.

Housed in a rugged, high-dielectric strength plastic cabinet, the MI‑15KVe provides IP65-rated protection against dust and water (lid closed), making it ideal for demanding field conditions.

Key Features

  • Measures insulation resistance up to 3 TΩ

  • Four test voltages: 1 kV, 5 kV, 10 kV, 15 kV

  • Analog display with large mirror scale for precision readings

  • GUARD terminal to eliminate surface leakage and parasitic resistance effects

  • High safety design with no exposed metallic parts

  • Visual high-voltage warning indicator and automatic discharge function

  • IP65-rated enclosure (with closed lid) for harsh environments

  • Rechargeable battery powered, includes universal charger

Technical Specifications

Test Voltages

  • 1 kV, 5 kV, 10 kV, 15 kV

Maximum Resistance Readings

  • 200 GΩ @ 1 kV

  • 1 TΩ @ 5 kV

  • 2 TΩ @ 10 kV

  • 3 TΩ @ 15 kV

Short Circuit Current

  • 1 mA

Test Voltage Accuracy

  • ±2% of nominal voltage (on R ≥ 10 GΩ)

Current Limiting Resistance

  • 1 MΩ @ 1 kV

  • 5 MΩ @ 5 kV

  • 10 MΩ @ 10 kV

  • 15 MΩ @ 15 kV

Insulation Tester Accuracy

  • Class 2 (±2% of full-scale deflection)

Analog Indicator

  • Scale length: Up to 98 mm

  • Taut band with mirror scale (prevents parallax errors)

Environmental Protection

  • IP65 (lid closed)

Compliance and Safety

  • IEC 61010-1 (Safety)

  • IEC 61326-1 (EMC)

  • IEC 61000-4-3 (Electromagnetic Immunity)

  • IEC 61000-4-2 (Electrostatic Immunity)

Power Supply

  • Internal 12 V / 7 Ah sealed lead-acid rechargeable battery

  • Charger input: 100–240 V AC

Temperature & Humidity

  • Operating: -10 °C to 50 °C (14 °F to 122 °F)

  • Storage: -25 °C to 70 °C (-13 °F to 158 °F)

  • Humidity: Up to 95% RH (non-condensing)

Physical

  • Weight: Approx. 21.38 lb (9.7 kg)

  • Dimensions: 14.88" x 12.13" x 6.89" (378 x 308 x 175 mm)

Application

  • Medium-voltage and high-voltage power systems

  • Transmission and distribution lines (overhead and underground)

  • Substation and industrial installations

  • Cable integrity and failure detection

  • Field diagnostics and maintenance

Included Accessories

  • 2 Measuring test leads

  • 1 GUARD test lead

  • 1 AC adapter / battery charger

  • 1 Carrying bag

  • 1 Operating instructions manual

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