Insulated Winding Wire Breakdown Voltage Testing Device
The Insulated Winding Wire Breakdown Voltage Testing Device is a high-precision automatic AC dielectric strength tester designed for evaluating the insulation performance of winding wires. Compliant with international and national standards, it applies controlled high voltage to determine breakdown characteristics. With touchscreen operation and microelectronic control, the device ensures accurate, stable, and fully automated testing.
Application
This Insulated Winding Wire Breakdown Voltage Testing Device is suitable for a wide range of applications:
Enamelled round wires and film-insulated wires
Flat winding wires of various specifications
Electrical components insulation testing
Transformer and motor winding evaluation
Laboratory research on dielectric strength
High-temperature insulation testing (with external thermal equipment)
Standards
(1) GB/T 4074.5-2008 — Test methods for winding wires (breakdown voltage)
(2) IEC 60851-5:2008 — Methods of test for winding wires
(3) GB/T 6109-2008 — General requirements for winding wires
(4) ASTM D149 — Dielectric breakdown voltage of insulating materials
(5) IEC 60243 — Electric strength of insulating materials
Parameters
| Category | Specification |
|---|---|
| Test Voltage | AC 0–15,000 V |
| Voltage Accuracy | ±3% |
| Frequency | 50 Hz |
| Waveform | Approx. sinusoidal (peak factor √2 × (1 ±5%)) |
| Breakdown Detection Current | (5 ± 0.5) mA |
| Voltage Drop | ≤ 2% |
| Voltage Rising Speed | 20 V/s to 500 V/s (range dependent) |
| Transformer Capacity | > 900 VA |
| Withstand Time | 0–9999 s |
| Specimen Quantity | 5 samples simultaneously |
| Data Storage | Up to 100 groups |
| Display | 7-inch touchscreen |
| Power Supply | 220 V ± 5%, 50 Hz |
| Environment | 0–40°C, ≤ 85% RH |
Features
(1) Fully automatic testing process including voltage ramping, switching, and data storage
(2) 7-inch touchscreen with clear real-time display of voltage, current, and test status
(3) Supports simultaneous testing of up to five specimens
(4) Built-in parameter memory for repeated tests without reconfiguration
(5) Real-time monitoring interface for improved observation
(6) Multiple safety protections including interlock, overvoltage, and zero-return protection
(7) Modular system design ensures stable and accurate performance
Accessories
(1) Twisting test device
(2) Rod-wrapping fixture
(3) Round rod electrodes
(4) Weight loading components
(5) Power cable
(6) User manual
Maintenance Information
(1) Regularly inspect high-voltage components and connections
(2) Keep the test chamber and electrodes clean
(3) Verify grounding system reliability to ensure safety
(4) Periodically calibrate voltage accuracy and measurement system
(5) Ensure proper ventilation and avoid operation in extreme environments
FAQ
(1) What is the Insulated Winding Wire Breakdown Voltage Testing Device?
The Insulated Winding Wire Breakdown Voltage Testing Device is an instrument used to evaluate the dielectric strength of insulated wires by applying high voltage until breakdown occurs. It helps determine the insulation quality and reliability of winding wires.
(2) What is the Insulated Winding Wire Breakdown Voltage Testing Device used for?
This device is used to test the voltage resistance of insulated wires and electrical components. It is widely applied in manufacturing, quality control, and research to ensure products meet safety and performance standards.
(3) What is the working principle of the Insulated Winding Wire Breakdown Voltage Testing Device?
The device applies gradually increasing AC voltage to the specimen until insulation breakdown occurs. When the leakage current reaches a preset threshold, the system detects breakdown and records the corresponding voltage value.
(4) Why is the Insulated Winding Wire Breakdown Voltage Testing Device important?
It is important because it ensures the safety and reliability of electrical insulation systems. The device helps identify insulation weaknesses, prevent failures, and maintain compliance with industry standards.
(5) Which industries is the Insulated Winding Wire Breakdown Voltage Testing Device suitable for?
This device is suitable for wire and cable manufacturing, transformer and motor production, electrical equipment testing, research laboratories, and any industry requiring high-voltage insulation performance evaluation.
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