Project Description
Configuration scheme of high voltage detector equipment
| Test item | Test equipment | Technical index | Reference |
|---|---|---|---|
| Insulation resistance measurement | Analog megohmmeter Digital megohmmeter | 500~2500V 10000MΩ | Short circuit current is not less than 2mA |
| DC withstand voltage and DC leakage measurement | DC voltage generator | 200kV 2mA | Ripple coefficient is not more than 1% |
| Power frequency high voltage test device | Console, voltage regulator, test transformer | 25kVA/150kV | Waveform distortion is less than 5% |
| Transformer DC resistance measurement | Transformer DC Resistance Tester | ≥1A 1mΩ~200Ω 0.2 level | |
| Transformer ratio measurement | Transformer tester | Measuring range: 1~100 accuracy: 0.2 level | |
| Transformer empty short circuit test | Transformer comprehensive test device | Measurement accuracy is not less than 0.5 level | |
| Conductive circuit contact resistance measurement | Loop resistance tester | Accuracy: 0.5 grade 1µΩ~2mΩ | The output current is not less than 100A |
| High-voltage switch mechanical action characteristic measurement | High-voltage switch comprehensive tester | Accuracy: ±0.1% | |
| Insulating oil dielectric strength test | Insulating oil pressure device | Voltage measurement accuracy: Class 3.0 | Steady state measurement accuracy: 1.5 level |
| Vacuum switch fracture withstand voltage test | Vacuum tester | Measuring range: 0.1~0.00001 | |
| Test voltage measurement | High voltage divider measuring system | Accuracy: AC1.0 level DC0.5 level | |
| Dielectric loss and capacitance measurement | High voltage bridge or dielectric loss measuring instrument | tgδ: ±5% Electric capacity: ±% | |
| Ground resistance measurement | Ground Resistance Tester | Output current: 1A accuracy: ±5% | The interference current of the fundamental wave does not exceed 50mA |
| Measuring range: 0~1999mA | |||
| Micro current measurement | DC microammeter | Resolution: 1mA | |
| Micro current measurement | Automatic or remote control shift DC microammeter | 0~2000µA accuracy: 0.5 level | |
| Infrared temperature measurement | Thermal imaging camera | Sensitivity: 0.1℃ | Recommended configuration |
| Infrared temperature measurement | Point thermometer | Accuracy: 1% | Recommended configuration |
| Time measurement range: 0~250ms accuracy: ±0.1% | |||
| Transformer on-load tapping switch test | On-load voltage regulator switch tester | Resistance measurement range: 0.1~20Ω accuracy: ±1.0% | |
| Resistance measurement of zinc oxide arrester | Zinc oxide arrester tester | 0~20mA | |
| Setting protection setting value measurement | Microcomputer protection tester | Six currents, six voltages | |
| Grounding resistance measurement of grounding grid | Ground network continuity tester | Range: 0.1mΩ~5Ω | |
| Input: 220V Output: 500V | |||
| CT/PT characteristic test | Transformer comprehensive characteristic tester | Input: 380V Output: 1000V | |
| Inspection range: 0.09Mpa | |||
| Density relay measurement | Sf6 density relay automatic calibrator | Inspection accuracy: 1.0 level | |
| Lightning counter measurement | Lightning counter action measuring instrument | Output voltage: 800~1000V | |
| Withstand voltage test of electrical equipment | FM series resonance test device | Weight: 780g |
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