Transformer Tan Delta and Capacitance Dielectric Loss & Dissipation Factor Tester
Specification of the Automatic Transformer Power Factor Tester
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Accuracy
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Cx: ±（reading×1%+1pF）
Tgδ: ±（reading×1%+0.00040） |
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Anti-interference
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Variable frequency anti-interference, the above accuracy can be reached even under 200% interference.
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Capacitance range
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Internal HV: 3pF～60000pF/12kV 60pF～1.2μF/0.5kV
External HV: 3pF～1.5μF/12kV 60pF～30μF/0.5kV Best Resolution: 0.001pF, 4 valid digits. |
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tgδ range
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Unlimited, 0.001% resolution, automatic identification for capacitance, inductance and resistance of three tested articles.
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Test current range
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10μA～5A
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Internal HV |
Set voltage range: 0.5～10kV
Maximum output current: 200mA Buck-boost method: continuous smooth regulation Accuracy: ±(1.5%x reading+10V) Voltage Resolution: 1V |
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Test frequency |
45~65Hz integer frequency
49/51 Hz, 45/55Hz automatic dual variable frequency Frequency accuracy: ±0.01Hz |
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External HV
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UST, maximum test current is 5A/ 40~70Hz
GST, maximum test current is 10kV/5A/40-70Hz |
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CVT self-excitation low voltage output
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Output voltage 3～50V, output current 3～30A
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Measuring duration
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About 30s, varies on measuring method
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Input power supply
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180V～270VAC, 50Hz/60Hz±1%, supplied by alternating current or generator
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Computer interface
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Standard RS232 interface
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Printer
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Built-in Micro-printer
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Operating Temperature
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-10℃～50℃
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Relative humidity
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<90%, Non-condensing
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Overall dimension
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490×380×340mm
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Weight
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About 27.5kg for instrument
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Features of the Capacitance & Dissipation Factor Test Set
1. Using frequency conversion anti-interference technology, accurate measurement even under 200% interference, and the test data is stable, suitable for on-site anti-interference dielectric loss test.
2. Adopting frequency floating, digital waveform analysis, and bridge self-calibration technologies, combined with high-precision three-terminal standard capacitors, ensure a high-precision dielectric loss measurement, and the accuracy and stability of the positive and negative wiring measurements are consistent. The input resistance of all ranges of the instrument is lower than 2Ω, which eliminates the influence of the additional capacitance of the test line. It can be connected to an oil cup for precision dielectric loss test of insulating oil, and can be connected to a solid material measuring electrode for precision dielectric loss test of insulating material.
4. The instrument is equipped with CVT testing function, which can achieve CVT self-exciting testing without external accessories and measure the capacitance and dielectric loss of C1 and C2 by at a time.
5. With an external standard capacitor interface, it can automatically track the frequency of the external test power supply from 40Hz to 70Hz, and support industrial frequency power supply and series resonance power supply for large-capacity high-voltage dielectric loss test.
6. Multiple safety protections to ensure the safety of human and equipment.
7. Built-in Micro-printer
8. Internal storage up to 100 sets.
