Wireless Insulator Voltage Tester | VS-8620

Products Details

VS-8620 Wireless Insulator Voltage Tester is designed for live detection of voltage distribution across insulator strings on overhead transmission lines. By measuring the voltage across each insulator unit, maintenance personnel can quickly identify deteriorated, contaminated, or defective insulators before insulation failure or flashover occurs. Operating as a key field instrument within our comprehensive insulator tester portfolio, it enhances live-line testing efficiency and grid safety.

The tester adopts an advanced wireless communication architecture consisting of a wireless transmitter mounted on an insulated operating rod and a portable handheld receiver. During measurement, the transmitter contacts both metal fittings of an insulator while wirelessly transmitting the measured voltage to the receiver in real time, eliminating cumbersome signal cables and improving operational safety.

The handheld receiver features an intuitive color display capable of presenting real-time measurement values, tower information, insulator string identification, historical records, and comprehensive analysis results. After completing an entire insulator string inspection, the instrument automatically stores measurement data and generates graphical reports, including line charts, bar charts, and detailed voltage distribution analysis.

Integrated analysis software compares measured voltage distribution with standard reference values or adjacent insulator strings, allowing rapid identification of abnormal voltage distribution caused by aging, contamination, moisture ingress, or insulation degradation. This significantly improves inspection efficiency and preventive maintenance planning.

Designed for field operation, the VS-8620 supports USB data storage, automatic report generation, multiple chart display modes, rechargeable batteries, and rugged construction suitable for transmission line inspection under demanding outdoor environments.

Technical Specifications

Measurement Specifications
Parameter	Specification
Measurement Object	Suspension Insulator String
Measurement Method	Wireless Voltage Measurement
Working Mode	Live-Line Testing
Data Transmission	Wireless
Fault Analysis	Automatic
Voltage Distribution Analysis	Supported
Real-Time Display	Supporte

 

Display & Data Management
Parameter	Specification
Display	Color LCD Screen
Data Storage	Internal Memory
USB Export	Supported
Analysis Report	Supported
Bar Chart Display	Supported
Line Chart Display	Supported
Data View	Supported
Report Printing	Supported

 

System Configuration
Component	Specification
Wireless Transmitter	1 Unit
Handheld Receiver	1 Unit
Insulating Operating Rod	Standard 6 m (Customizable)
USB Flash Drive	4 GB
Charger	1 Set

 

Environmental Conditions
Parameter	Specification
Application	Outdoor Live-Line Inspection
Operating Mode	Portable Field Operation
Battery	Rechargeable

How the VS-8620 Works

The VS-8620 operates by attaching the wireless transmitter to an insulated operating rod. During inspection, the transmitter's two probes are placed in contact with both metal fittings of each insulator unit, with the marked probe connected to the high-voltage side.

The measured voltage is transmitted wirelessly to the handheld receiver, where the voltage value is displayed instantly. After each measurement, operators simply press the measurement button to save the result. Once all insulators within the string have been tested, the entire dataset is automatically stored for further analysis and report generation.

The integrated analysis software compares measured voltage values with standard reference tables or neighboring insulator strings to identify deteriorated or faulty insulators requiring maintenance.

Features

• Wireless voltage measurement technology
• Live-line insulator voltage testing
• Real-time wireless data transmission
• Handheld receiver and wireless transmitter
• High measurement accuracy
• Automatic insulator fault analysis
• Large color display
• Graphical voltage distribution analysis
• Bar chart and line chart display
• Automatic report generation
• USB data export
• Internal data storage
• Historical record management
• Tower information management
• String identification function
• Rechargeable battery operation
• Portable field design
• Suitable for overhead transmission line inspection

Applications & Use Cases

Application Scenarios

• Power Utilities: Routine inspection of overhead transmission line insulator strings.

• Transmission Line Maintenance: Live-line detection of deteriorated suspension insulators.

• High-Voltage Substations: Preventive maintenance and insulation condition assessment.

• Electrical Testing Companies: Professional inspection and acceptance testing of transmission networks.

• Research Institutes: Insulation performance analysis and transmission line diagnostics.

Functional Applications

• Live-Line Insulator Voltage Testing

• Suspension Insulator Distribution Voltage Measurement

• Transmission Line Inspection

• Faulty Insulator Detection

• Preventive Maintenance

• Power Grid Condition Assessment

• High-Voltage Transmission Line Diagnostics

• Electrical Equipment Inspection

• Utility Maintenance Programs

• Transmission Network Acceptance Testing

Weshine Advantages

Weshine Electric specializes in advanced transmission line testing equipment and high-voltage diagnostic solutions. The VS-8620 Wireless Insulator Voltage Tester combines wireless measurement technology, intelligent data analysis, automatic report generation, and portable field operation to provide fast and reliable live-line insulator inspection. Paired seamlessly with our wide selection of insulation resistance tester tools and substation instruments, Weshine solutions help utilities, transmission maintenance contractors, and testing laboratories improve inspection efficiency, enhance grid reliability, and reduce maintenance costs through accurate detection of deteriorated insulators.