Transformer Capacity Characteristic Tester
The transformer capacity characteristic tester comes with a high-efficiency rechargeable battery, allowing it to work without an external power supply. A single charge can support continuous measurement of dozens to hundreds of units. Meanwhile, the internal digital synthesis generates a three-phase standard sine wave signal (not a simple inverter AC output, ensuring the accuracy of test data under non-rated conditions for various test items), which is amplified by a power amplifier to provide a precise three-phase AC test source. When measuring transformer capacity and short-circuit loss, there is no need for external three-phase test power sources, voltage regulators, or current boosters, simplifying wiring and greatly improving work efficiency. The capacity test result accuracy reaches 100%. This device is equivalent to two devices: an active transformer capacity tester plus a transformer loss parameter tester. It can precisely measure a series of power frequency parameters such as capacity, no-load current, no-load loss, short-circuit loss, and impedance voltage for various transformers. The transformer capacity characteristic tester has the advantages of small size, light weight, high measurement accuracy, good stability, and easy operation, fully replacing the previous multi-meter method for measuring transformer loss and capacity. It features simple wiring, convenient testing and recording, greatly improving work efficiency. The transformer capacity characteristic tester uses a large-screen graphical LCD as the display window, with graphical menu operation and Chinese prompts, integrating multiple parameters on one screen. The human-machine interface is friendly, and the operation is simple and fast, making it the preferred product for power users at all levels. Features
1. Can accurately measure the capacity of various distribution transformers, passive measurement, convenient and accurate.
2. Built-in power supply, automatically generates a three-phase high-power test power source.
3. Can measure no-load current, no-load loss, short-circuit voltage, and short-circuit loss of various types of transformers.
4. Can automatically perform waveform distortion correction, temperature correction, voltage correction, and current correction (short-circuit test under non-rated current conditions). The operator only needs to input the correction index based on the transformer type, and the instrument will automatically calculate the corrected results, making it very suitable for units that do not have conditions for short-circuit tests on larger capacity transformers.
5. Wide voltage range: maximum voltage measurement up to 750V, ensuring accuracy without switching gears. It will not damage the instrument due to incorrect voltage gear selection.
6. Battery remaining percentage indication function, not just a simple low battery alarm.
6. Large-screen, high-brightness LCD display, full Chinese menu and operation prompts for friendly human-machine dialogue, touch buttons for easier operation, wide-temperature LCD with brightness adjustment, adaptable to winter and summer.
7. Users can print test data at any time through the micro printer.
8. Test result storage function, can store 200 sets of capacity test data.
Technical Specifications
1. Input Characteristics
Active part:
Voltage measurement range: 0~10V
Current measurement range: 0~10A
Passive part:
Voltage measurement range: 0~750V wide range.
Current measurement range: 0~100A, all internal automatic range switching.
2. Accuracy
Voltage, current, frequency: ±0.2%
Power: ±0.5% (CosΦ>0.1), ±1.0% (0.02<CosΦ<0.1)
3. Operating temperature: -10℃~ +40℃
4. Charging power supply: AC 160V~260V
5. Insulation: ⑴. Insulation resistance between voltage/current input terminals and the casing ≥100MΩ.
⑵. The working power input terminal withstands a power frequency of 2KV (effective value) for 1 minute test against the casing.
6. Dimensions: 32cm×24cm×13cm
7. Weight: 3Kg
