10kV Digital Insulation Resistance Tester | VS-8611

Products Details

VS-8611 10kV Digital Insulation Resistance Tester is engineered for preventive maintenance, commissioning, and condition assessment of high-voltage electrical equipment. By applying a stable DC high voltage and accurately measuring insulation resistance up to 10TΩ, the instrument helps evaluate insulation aging, moisture ingress, contamination, and deterioration before equipment failure occurs. Operating as an essential high-voltage asset in our insulation resistance tester range, it provides comprehensive insulation health analysis.

The tester supports multiple programmable output voltages (250V, 500V, 1000V, 2500V, 5000V, and 10000V), allowing engineers to perform insulation testing on low-, medium-, and high-voltage electrical assets. In addition to basic insulation resistance measurement, the instrument automatically calculates Polarization Index (PI) and Dielectric Absorption Ratio (DAR), providing vital diagnostic metrics for assessing insulation quality over time.

The VS-8611 features a large high-resolution color LCD display that simultaneously shows output voltage, insulation resistance, leakage current, test time, battery status, and measurement progress in real time. The intuitive graphical interface enables quick parameter configuration and simple operation in both laboratory and field environments.

To ensure operational safety, the instrument incorporates an automatic discharge function, high-voltage warning indication, output short-circuit protection, overload protection, and low battery alerts. After each measurement, residual capacitive voltage stored in the test object is safely discharged before the operator disconnects the test leads.

Built-in internal memory allows storage of numerous measurement records, while USB communication enables convenient data transfer to a computer for report generation and long-term asset management. Designed for demanding industrial applications, the VS-8611 combines precision measurement, intelligent diagnostics, rugged construction, and portable operation.

Technical Specifications

Measurement Specifications
Parameter	Specification
Test Voltage	250V / 500V / 1000V / 2500V / 5000V / 10000V
Insulation Resistance Range	Up to 10T惟
Polarization Index (PI)	Automatic
Dielectric Absorption Ratio (DAR)	Automatic
Leakage Current Measurement	Supported
Test Timer	Adjustable
Measurement Method	DC High Voltage

 

Display & Data Storage
Parameter	Specification
Display	Color LCD Screen
Voltage Display	Real-time
Resistance Display	Real-time
Leakage Current Display	Supported
Data Storage	Internal Memory
USB Communication	Supported

 

Power Supply
Parameter	Specification
Power Supply	Rechargeable Lithium Battery
Charging Method	AC Adapter
Low Battery Warning	Supported

 

Safety Protection
Parameter	Specification
Automatic Discharge	Yes
High Voltage Warning	Yes
Output Short-Circuit Protection	Yes
Overload Protection	Yes

 

Environmental Conditions
Parameter	Specification
Operating Temperature	-10°C to +50°C
Relative Humidity	≤90% RH
Storage Temperature	-20°C to +60°C

How the VS-8611 Works

The VS-8611 applies a stable DC high-voltage output to the insulation under test while continuously measuring leakage current. Based on Ohm's law, the instrument automatically calculates insulation resistance and displays the value in real time.

During extended testing, the tester records insulation resistance over time and automatically calculates the Polarization Index (PI) and Dielectric Absorption Ratio (DAR), providing a comprehensive evaluation of insulation condition. Once the test is completed, the instrument safely discharges any residual voltage before allowing the test leads to be removed.

Features

• Maximum test voltage up to 10kV
• High-precision insulation resistance measurement
• Automatic PI (Polarization Index) calculation
• Automatic DAR (Dielectric Absorption Ratio) calculation
• Leakage current measurement
• Multiple programmable test voltages
• Large color LCD display
• Real-time voltage and current monitoring
• Automatic discharge after testing
• High-voltage warning indicator
• Internal data storage
• USB communication interface
• Automatic timer function
• Continuous insulation testing
• Automatic range selection
• Short-circuit protection
• Overload protection
• Low battery indication
• Portable field design
• Suitable for preventive maintenance and commissioning

Applications & Use Cases

Application Scenarios

• Power Utilities: Routine insulation testing of transformers, switchgear, transmission lines, and substations.

• Transformer Manufacturers: Factory acceptance testing (FAT) and insulation quality verification.

• Industrial Facilities: Preventive maintenance of high-voltage motors, generators, and heavy power assets.

• Cable Manufacturers: High-voltage insulation testing and cable quality control.

• Electrical Testing Laboratories: Precision insulation diagnostics and certification testing.

Functional Applications

• Transformer Insulation Resistance Testing

• Power Cable Insulation Testing

• Motor Insulation Testing

• Generator Insulation Testing

• High-Voltage Switchgear Testing

• GIS Equipment Insulation Testing

• Electrical Equipment Preventive Maintenance

• Factory Acceptance Testing (FAT)

• Commissioning Tests

• Routine Electrical Maintenance

Weshine Advantages

Weshine Electric specializes in high-voltage electrical testing instruments for utilities, industrial facilities, and testing laboratories. The VS-8611 10kV Digital Insulation Resistance Tester combines high-voltage output, precision insulation measurement, intelligent PI/DAR analysis, automatic safety protection, and comprehensive data management into one portable instrument. Designed to work alongside our full range of substation tools including the high voltage insulator tester, Weshine solutions help customers accurately assess insulation condition, improve equipment reliability, reduce maintenance costs, and ensure long-term electrical system safety.