• lizhvtesttech@gmail.com
  • +1 323 522 4623
Insulation Resistance Testers

Insulation Resistance Testers

Our Insulation Resistance Testers, also known as Megohmmeters or High-Voltage Insulation Resistance Testers, are designed for both laboratory and field use to accurately measure the insulation resistance of various electrical components. Featuring advanced functions like LCD display, data storage, and automatic calculation of polarization index and absorption ratio, these testers ensure reliability and ease of use.

lizhvtesttech@gmail.com

+1 323 522 4623

Key Features:

  • Wide Voltage Range: Offers a test voltage range from 250V to 5000V, suitable for a variety of insulation testing applications.
  • High Accuracy: Provides precise measurements of insulation resistance up to 5.00TΩ with high accuracy, ensuring reliable data for critical assessments.
  • Advanced Display: Large LCD with grey-white backlight display for clear visibility in dim environments.
  • Data Storage and Review: Automatically stores data at intervals of 15 seconds, 30 seconds, 1 minute, and 10 minutes, with easy data retrieval.
  • User-Friendly Interface: Simplifies operation with an intuitive interface, making it easy to set up and use even for those with minimal training.
  • Durable Design: Built to withstand harsh environments with features like shockproof, dustproof, and moisture-proof construction.
  • Portable and Convenient: Lightweight and portable, making it ideal for on-site testing.

Applications:

  • Transformers: Measuring the insulation resistance of transformer windings to ensure safety and performance.
  • Motors and Generators: Assessing the insulation integrity of motor and generator windings.
  • Cables: Testing the insulation resistance of various types of electrical cables.
  • Electrical Equipment: Suitable for testing insulation resistance in a wide range of electrical devices and systems.

Technical Specifications:

          Model 1
  • Battery Type: Lithium Battery
  • Output Voltage Range: 50V/250V/500V/1kV/2.5kV/5kV
  • Voltage Levels: 6 Levels
  • Resistance Measurement Range: 0.005MΩ~5TΩ
  • Maximum Error Tolerance: 5%~10%
  • Short Circuit Current: ≤5mA
  • AC Voltage Test Range: 0~800V
  • DC Voltage Test Range: 0~800V
  • Absorption Ratio and Polarization Index Test: Yes
  • Capacitance Test: Yes
  • Step Function (STEP) Test: Yes
  • Ramp Function (RAMP) Test: Yes
  • Storage Function: Yes
  • USB Communication: Yes
  • Bluetooth Communication: Yes
  • Protocol Compatibility: Optional
         Model 2
  • Battery Type: Lithium Battery
  • Output Voltage Range: 50V/250V/500V/1kV/2.5kV/5kV
  • Voltage Levels: 6 Levels
  • Resistance Measurement Range: 0.005MΩ~10TΩ
  • Maximum Error Tolerance: 5%~10%
  • Short Circuit Current: ≤7mA
  • AC Voltage Test Range: 0~700V
  • DC Voltage Test Range: 0~1000V
  • Absorption Ratio and Polarization Index Test: Yes
  • Capacitance Test: 10nF~200uF
  • Step Function (STEP) Test: Yes
  • Ramp Function (RAMP) Test: Yes
  • Storage Function: Yes
  • USB Communication: Yes
  • Bluetooth Communication: Yes
  • Protocol Compatibility: Optional
          Model 3
  • Battery Type: Lithium Battery
  • Output Voltage Range: 100V/250V/500V/1kV/2.5kV/5kV
  • Voltage Levels: 6 Levels
  • Resistance Measurement Range: 0.01MΩ~10TΩ
  • Maximum Error Tolerance: ±3%
  • Short Circuit Current: ≤6mA
  • AC Voltage Test Range: 0.1~750V
  • DC Voltage Test Range: 0.1~1000V
  • Absorption Ratio and Polarization Index Test: Yes
  • Capacitance Test: 10nF~50uF
  • Step Function (STEP) Test: Yes
  • Ramp Function (RAMP) Test: Yes
  • Storage Function: Yes
  • USB Communication: Yes
  • Bluetooth Communication: Yes
  • Protocol Compatibility: Optional
          Model 4
  • Battery Type: Lithium Battery
  • Output Voltage Range: 50V/250V/500V/1kV/2.5kV/5kV/10kV
  • Voltage Levels: 7 Levels
  • Resistance Measurement Range: 0.005MΩ~10TΩ
  • Maximum Error Tolerance: 5%~10%
  • Short Circuit Current: ≤5mA
  • AC Voltage Test Range: 0~800V
  • DC Voltage Test Range: 0~800V
  • Absorption Ratio and Polarization Index Test: Yes
  • Capacitance Test: Yes
  • Step Function (STEP) Test: Yes
  • Ramp Function (RAMP) Test: Yes
  • Storage Function: Yes
  • USB Communication: Yes
  • Bluetooth Communication: Yes
  • Protocol Compatibility: Optional
         Model 5
  • Battery Type: Lithium Battery
  • Output Voltage Range: 50V/250V/500V/1kV/2.5kV/5kV/10kV
  • Voltage Levels: 7 Levels
  • Resistance Measurement Range: 0.005MΩ~20TΩ
  • Maximum Error Tolerance: 5%~10%
  • Short Circuit Current: ≤7mA
  • AC Voltage Test Range: 0~700V
  • DC Voltage Test Range: 0~1000V
  • Absorption Ratio and Polarization Index Test: Yes
  • Capacitance Test: 10nF~200uF
  • Step Function (STEP) Test: Yes
  • Ramp Function (RAMP) Test: Yes
  • Storage Function: Yes
  • USB Communication: Yes
  • Bluetooth Communication: Yes
  • Protocol Compatibility: Optional
          Model 6
  • Battery Type: Lithium Battery
  • Output Voltage Range: 250V/500V/1kV/2.5kV/5kV/10kV
  • Voltage Levels: 6 Levels
  • Resistance Measurement Range: 0.01MΩ~35TΩ
  • Maximum Error Tolerance: ±3%
  • Short Circuit Current: ≤6mA
  • AC Voltage Test Range: 0.1~750V
  • DC Voltage Test Range: 0.1~1000V
  • Absorption Ratio and Polarization Index Test: Yes
  • Capacitance Test: 10nF~50uF
  • Step Function (STEP) Test: Yes
  • Ramp Function (RAMP) Test: Yes
  • Storage Function: Yes
  • USB Communication: Yes
  • Bluetooth Communication: Yes
  • Protocol Compatibility: Optional
          Model 7
  • Battery Type: Lithium Battery
  • Output Voltage Range: 50V/250V/500V/1kV/2.5kV/5kV/10kV/15kV
  • Voltage Levels: 8 Levels
  • Resistance Measurement Range: 0.005MΩ~30TΩ
  • Maximum Error Tolerance: 5%~10%
  • Short Circuit Current: ≤7mA
  • AC Voltage Test Range: 0~700V
  • DC Voltage Test Range: 0~1000V
  • Absorption Ratio and Polarization Index Test: Yes
  • Capacitance Test: 10nF~200uF
  • Step Function (STEP) Test: Yes
  • Ramp Function (RAMP) Test: Yes
  • Storage Function: Yes
  • USB Communication: Yes
  • Bluetooth Communication: Yes
  • Protocol Compatibility: Optional
         Model 8
  • Battery Type: Lithium Battery
  • Output Voltage Range: 500V/1kV/2.5kV/5kV/10kV/15kV
  • Voltage Levels: 6 Levels
  • Resistance Measurement Range: 0.005MΩ~50TΩ
  • Maximum Error Tolerance: ±3%
  • Short Circuit Current: ≤6mA
  • AC Voltage Test Range: 0.1~750V
  • DC Voltage Test Range: 0.1~1000V
  • Absorption Ratio and Polarization Index Test: Yes
  • Capacitance Test: 10nF~50uF
  • Step Function (STEP) Test: Yes
  • Ramp Function (RAMP) Test: Yes
  • Storage Function: Yes
  • USB Communication: Yes
  • Bluetooth Communication: Yes
  • Protocol Compatibility: Optional
         Handhold
  • Insulation Resistance Measurement:
    • Voltage Ranges: 250V, 500V, 1000V, 2500V, 5000V
    • Measurement Range: 0.01MΩ to 5.00TΩ
    • Accuracy: ±3%rdg±5dgt (up to specified limits), ±15%rdg±5dgt for higher ranges
  • AC/DC Voltage Measurement:
    • AC Voltage Range: 0.01V to 750V
    • DC Voltage Range: 0.01V to 1000V
    • Accuracy: ±2%rdg±3dgt
  • Other Features:
    • Short Circuit Current: ≥5mA
    • Power Supply: Rechargeable lithium battery (DC 14.8V 2200mAh)
    • LCD Size: 128mm × 75mm
    • Weight: 2.66kg (with battery)
    • Dimensions: 258mm × 215mm × 83mm
    • Environmental Conditions: Operating temperature: -10℃ to +40℃, Storage temperature: -20℃ to +60℃
    • Communication: USB interface for data upload and storage

How to Choose Insulation Resistance Testers?

Choosing the correct insulation resistance tester range (0.01MΩ to 10TΩ, 35TΩ, or 50TΩ) depends on the type of equipment being tested, its operating voltage, and its expected insulation resistance.

RangeRecommended ApplicationsTypical ResistanceAdvantagesLimitations
0.01MΩ to 10TΩMedium voltage motors (≤5kV), small transformers, short cables.1MΩ to 1TΩAffordable, compact, and suitable for most routine maintenance tasks.Limited for high-voltage or very high-resistance equipment.
0.01MΩ to 35TΩMedium voltage cables, power transformers (5kV to 30kV).1GΩ to 30TΩVersatile for a wide range of medium to high-voltage equipment.Overkill for low-voltage or smaller systems, slightly higher cost.
0.01MΩ to 50TΩHigh and ultra-high voltage systems (30kV to 110kV and above).>10TΩ to >30TΩIdeal for large transformers, GIS, and extra-high voltage applications.Expensive, not needed for most standard maintenance tasks.
Comparison of Test Voltage Options
Test VoltageRecommended ApplicationsAdvantagesLimitations
5kVMedium voltage equipment (1kV to 5kV), small motors, short cables.Affordable and suitable for most routine testing scenarios.Limited for high-voltage or extra-high resistance systems.
10kVMedium to high voltage transformers, motors, and cables (5kV to 15kV).Versatile and capable of handling a wide range of equipment.Overkill for small or low-voltage systems.
15kVHigh voltage transformers, long cables, and large motors (15kV to 30kV).Suitable for most high-voltage applications, providing accurate results.Higher cost and unnecessary for lower voltage systems.
20kVUltra-high voltage systems, GIS, and long transmission lines (>30kV).Essential for extreme high-voltage systems, ensuring precise measurements.Expensive and not required for most standard maintenance tasks.
How to Choose Between Insulation Resistance Testers with Maximum Short-Circuit Currents of 7mA and 5mA
Maximum Short-Circuit CurrentRecommended ApplicationsAdvantagesLimitations
5mASmall motors, low-voltage cables, and small transformers.Safe for sensitive equipment, minimizes stress on insulation.Not suitable for large or high-capacitance equipment due to slower charging.
7mAMedium to high voltage transformers, large motors, and long cables.Faster charging of equipment with high capacitance, ensuring quicker measurements.May overstress sensitive or aged equipment if not properly monitored.

Why Choose Our Insulation Resistance Testers?

  • Precision and Reliability: Provides accurate and reliable measurements, essential for effective maintenance and diagnostics.
  • Compliance with Standards: Meets international standards such as IEC, ensuring standardized and dependable testing results.
  • Durable and Robust: Constructed with high-quality materials for long-lasting performance in various testing environments.
  • Comprehensive Support: Our experienced engineers offer full technical support, from initial setup to ongoing maintenance and troubleshooting.
  • Innovative Technology: Utilizes the latest technological advancements to deliver efficient and accurate testing solutions.

Contact Us:

For more information about our Insulation Resistance Testers or to request a quote, please contact us at email: Sale@hvtesttech.com or call us: +1 323 522 4623

Your trusted partner in advanced high-voltage testing solutions.

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