Voltage Breakdown Tester
A Voltage Breakdown Tester is used to evaluate the dielectric strength and withstand voltage capability of insulating materials under AC or DC conditions. It is widely applied in electrical, electronic, and materials industries for quality control, R&D, and compliance verification.
Applications
Quality Control: Ensures insulating materials meet required dielectric strength before use in production.
Material Evaluation: Tests plastics, rubber, films, resins, ceramics, glass, and insulating oils.
R&D Optimization: Helps engineers improve insulation performance by analyzing breakdown behavior.
Safety Compliance: Verifies that materials can withstand specified voltages without failure.
Compliance Standards
GB/T 1408-2006 — Electric strength of insulating materials
GB/T 1695-2005 — Rubber breakdown strength test
GB/T 3333 — Cable paper breakdown test
HG/T 3330 — Insulating varnish film test
GB/T 12656 — Capacitor paper breakdown test
ASTM D149 — Dielectric breakdown voltage of solid insulating materials
Technical Parameters
| No. | Item | Parameters | Remarks |
|---|---|---|---|
| 1 | Equipment Model | DDJ-10KV / DDJ-20KV / DDJ-50KV | Optional |
| 2 | Electrical Capacity | 1 KVA / 2 KVA / 3 KVA | |
| 3 | Output Voltage | AC/DC 10KV / 20KV / 50KV | |
| 4 | Input Voltage | AC 220V / 50Hz | |
| 5 | Voltage Ramp Rate | 0.1–5 KV/s | Adjustable |
| 6 | Voltage Rise Mode | Constant / Step / Withstand | |
| 7 | Breakdown Stop | Voltage / Current Trigger | |
| 8 | Test Medium | Air / Oil / High Temperature | Optional |
| 9 | Voltage Accuracy | ≤1.5% | |
| 10 | Leakage Current | 0–100 mA | Sensor range |
| 11 | Voltage Sensor | 0–100 V | Sensor range |
| 12 | Electrodes | φ25 mm ×2, φ75 mm ×1 | Customizable |
| 13 | Discharge Method | Automatic discharge | |
| 14 | Electrode Movement | Manual / Auto lifting | Optional |
| 15 | Test Oil Tank | 300 × 150 × 200 mm | With support |
| 16 | Illumination | Built-in lighting | |
| 17 | Exhaust System | Built-in fan | |
| 18 | Test Indication | Tower light | Status display |
| 19 | Test Door | Pneumatic / Sliding | |
| 20 | Safety Protection | Overvoltage / Overcurrent / Short circuit / Leakage | |
| 21 | Environment | Temp: Room / Humidity ≤65% | |
| 22 | Main Unit Size | 1000 × 700 × 1400 mm | |
| 23 | Chamber Size | 1000 × 500 × 550 mm | |
| 24 | Observation Window | 800 × 300 mm | Large view |
| 25 | Weight | ~150 kg |
Key Features
PLC + PC Control System for precise automation
Real-time Curve Display (voltage & leakage current)
Flexible Test Modes: AC / DC / Breakdown / Withstand / Step test
Data Export & Reporting: Excel export and customizable reports
High Anti-Interference Design using opto-isolated communication
Automatic Shutdown & Data Recording after breakdown
FAQ
1. What is this product?
It is a dielectric strength tester used to measure insulation breakdown voltage.
2. What materials can be tested?
Plastics, rubber, films, ceramics, glass, resins, and more.
3. What test modes are available?
AC, DC, breakdown, withstand voltage, and gradient tests.
4. Is high-temperature testing supported?
Yes, it is optional based on user requirements.
5. How is safety ensured?
The system includes multiple protections such as overvoltage, overcurrent, and leakage protection.
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