Dual Canopy Mechanic Electrical Engineering Co., Ltd. is one of the leading manufacturers and suppliers of transformer capacity & loss parameter no load current test equipment in China. Please feel free to wholesale discount products for sale here and get quotation from our factory. Customized orders are welcome.
Products Description
The transformer no-load and capacity tester is a specially developed and researched high-precision instrument specifically used for measuring the capacity and loss parameters of transformers. It is equipped with an efficient rechargeable battery and can operate without an external power supply. After charging once, it can continuously measure up to 500 times. At the same time, it internally generates a digital synthetic three-phase standard sine wave signal (not simply an inverter AC output, ensuring the accuracy of test data for each test item under non-rated conditions), and through a power amplifier, it can provide a three-phase precise AC test source. When measuring the capacity of the transformer and the short-circuit loss of the transformer, no external three-phase test power supply, voltage regulator, current booster, etc. are required as auxiliary equipment. This simplifies the wiring and significantly improves work efficiency.
Products Description
The accuracy rate of the capacity test results is 100%. This device is equivalent to four different devices: active transformer capacity tester + transformer loss parameter tester + harmonic analyzer + oscilloscope. It can precisely measure a series of power frequency parameters such as the capacity, no-load current, no-load loss, short-circuit loss, and impedance voltage of various transformers. It can also measure the voltage, electrical distortion, and harmonic content during the no-load test, and can also perform vector analysis.
Scope of Application
It is used to measure the no-load current, no-load loss, impedance voltage, load loss, and zero-sequence impedance of various types of transformers. It can automatically perform waveform distortion correction, temperature correction (providing two methods: simple temperature correction and separate correction for additional losses), voltage correction (no-load test under non-rated voltage conditions), current correction (short-circuit test under non-rated current conditions), and is highly suitable for units that do not have the conditions for conducting short-circuit tests on transformers of slightly larger capacity.
Product Highlights
1. It can automatically perform waveform distortion correction, temperature correction (providing two methods: simple temperature correction and separate loss correction), voltage correction (no-load test under non-rated voltage), current correction (short-circuit test under non-rated current conditions), and is highly suitable for units without the conditions for conducting short-circuit tests on larger-capacity transformers.
2. It can measure three-phase voltage, three-phase current, average voltage, average current, two-phase active power (since the two-power-meter method is adopted, only the AC two-phase power is displayed here), and total power.
3. It can measure the content of 2-42 harmonic components of each phase voltage and current, as well as the total distortion rate (harmonic distortion degree) of each signal.
4. It can display the real-time waveforms of each phase voltage and current, and intuitively show the distortion of the waveforms.
5. Voltage circuit wide range: The maximum voltage can be measured up to 750V, and the accuracy can be guaranteed without switching gears. It will not damage the instrument due to incorrect selection of voltage gear.
6. Large screen. Full Chinese menu and operation prompts achieve friendly human-computer interaction. Conductive rubber buttons make operation simpler. High-brightness true-color liquid crystal display can adapt to all seasons.
1. Input characteristics: Voltage measurement range: 0-750V wide range. Current measurement range: 0-5-100A. All automatic range switching inside.
2. Accuracy: Voltage: ±0.2%. Current: ±0.2% of the range. Power: ±0.5% (CosΦ>0.1); ±1.0% (0.05 3. Working power supply: AC 160V-265V.
4. Insulation: The insulation resistance between the voltage and current input terminals and the casing is ≥100MΩ. The insulation resistance between the working power supply input terminals and the casing withstands a 2kV (effective value) alternating current for 1 minute experiment.
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