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HF-WC-631 DC Circuit Breaker Tester
DC Circuit Breaker Tester accurately measures tripping current and operation time of DC circuit breakers. It verifies overload and short-circuit protection characteristics, widely used for factory inspection, routine maintenance and commissioning of new energy stations, DC power supply and battery energy storage systems.
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In response to the practical requirements for I-t characteristic testing of DC protective devices, our company has developed a portable, highly automated DC circuit breaker I-t characteristic test system suitable for on-site substation use.
It provides testing means for operation and maintenance teams to verify the operating characteristics and time-current tolerance of DC protective devices, improving the reliability of DC systems and securing stable power grid operation.
HF-WC-631 is applicable for I-t characteristic tests on DC circuit breakers with rated current from 1A to 500A, as well as DC fuses rated 6A ~ 100A.
HF-WC-631 is applicable for I-t characteristic tests on DC circuit breakers with rated current from 1A to 500A, as well as DC fuses rated 6A ~ 100A.
Product Features
- The instrument supports standalone operation and PC connected operation.
- Equipped with 320×240 LCD display and high-speed thermal printer; full keyboard human-machine interaction realizes intelligent full-process operation.
- Adopts power electronic control technology to generate high output current, featuring fast response, high precision and continuously adjustable output.
- Multiple high-precision sensors enable automatic current range switching, matched with high-performance 14-bit AD acquisition chip.
- Supports power-off data storage, capable of saving 200 groups of test records.
- Automatically saves configuration data; the last settings will be loaded after power restart.
- Two optional test modes: I-t trip test and constant current no-trip test.
- Under PC-connected mode, users can control the instrument, import and store test data, generate curves and export test reports in Excel format.
- Built-in overheat, overcurrent and overvoltage protection functions.
- Strong anti-interference capability and excellent electromagnetic compatibility.
Product Specifications
| Item | Parameter |
|---|---|
| Power Input | 220V±10% |
| Frequency | 50Hz±0.5Hz |
| Test Current Range | 0~500A; expandable to 1000A |
| Current Ripple Factor | Less than 2% |
| Output Current Stability | ≤0.5% |
| I-t Trip Test | Time recording: 0.9~9.9S Minimum time resolution: 0.1ms |
| Constant Current No-trip Test | Time recording: 0~9999S Minimum time resolution: 0.1S |
| Ambient Temperature | -20℃~50℃ |
| Overall Dimension | 560mm(L)×410mm(W)×350mm(H) |
| Weight | 3kg |
Applications
DC Circuit Breaker Tester is used to test the I-t tripping characteristics of DC circuit breakers and DC fuses. It calibrates operating time and current tolerance, widely adopted for factory testing, commissioning and routine maintenance of DC power systems, energy storage stations and new energy projects.
Packing List
| Description | Qty | Unit |
|---|---|---|
| HF-WC-631 DC Circuit Breaker Tester Main Unit | 1 | Pc |
| DC Test Cables & Clamps | 1 | Set |
| AC Power Cord | 1 | Pc |
| Communication Cable (PC connection) | 1 | Pc |
| Operation Manual (Chinese & English Version) | 1 | Copy |
| Factory Calibration Certificate | 1 | Copy |
| Export Foam & Carton | 1 | Set |
FAQ for DC Circuit Breaker I-t Characteristic Tester
Q1: What devices can this tester test?
A: It is suitable for DC circuit breakers with rated current 1A~500A and DC fuses of 6A~100A to measure their I-t tripping characteristics.
Q2: What is the maximum test output current?
A: Standard test current range: 0~500A, and it can be expanded to 1000A as required. The current ripple factor is less than 2%.
Q3: What test modes are available?
A: Two optional modes: I-t trip test and constant current no-trip test, meeting different verification requirements for DC protective appliances.
Q4: Can the instrument work with a computer?
A: Yes. It supports standalone operation and PC-linked control. Users can import data, generate curves and export EXCEL reports when connected to a PC.
Q5: Does it support data storage?
A: It has power-off storage function, which can store up to 200 groups of test data. The last setting parameters will be automatically loaded after restart.
Q6: What protection functions are equipped?
A: Built-in overheat, overcurrent and overvoltage protection to avoid damage to the equipment during testing.
Q7: What is the time resolution of the test?
A: I-t trip test: minimum resolution 0.1ms; constant current no-trip test: minimum resolution 0.1S.
Q8: Is it suitable for field substation inspection?
A: Yes. It features fast current response, strong anti-interference and good EMC performance, ideal for on-site maintenance and factory acceptance tests.
Q9: Does the machine support printing test results?
A: The built-in high-speed thermal printer can output test records directly on site.
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