AC/DC High Current Generator (Current Transformer Ratio and Polarity Tester)
AC/DC High Current Generator (Current Transformer Ratio and Polarity Tester) is specially designed for testing the ratio and polarity of current transformers. It integrates a high current generator, primary and secondary digital ammeters, and polarity discrimination circuits. The product is well-designed and easy to operate.
Technical Specifications:
1. Output current: 0～500A, power: 6kVA.
2. Primary ammeter measurement: 0～1000A, resolution: 0.1A,
Error: ±(0.5% of reading + 2 digits).
3. Secondary ammeter measurement: 0～5A, resolution: 1mA,
Error: ±(0.5% of reading + 2 digits).
4. Power supply voltage: AC220V±10%.
5. Working environment: temperature 0～+40°C
Humidity less than 85% without condensation
6. Dimensions: 360mm*290mm*280mm
7. Instrument weight: 37kg
(Current Transformer Ratio and Polarity Tester) Accessories:
Specific advantages in work:
1. The AC/DC High Current Generator adopts advanced technology and manufacturing processes, pioneering the application of the latest PWM high-frequency pulse width modulation technology and pulse train logic array modulation. It uses high-power IGBT devices and utilizes high-frequency technology to increase the frequency up to 100kHz, resulting in higher stability of the output high voltage and smaller ripple coefficient.
2. Smaller size, lighter weight, more beautiful appearance, more reliable, easy to operate, and fully functional, making it convenient for field use. It is the most ideal reliable product in the new century.
3. Combines hardware and software anti-interference technologies, ensuring stable performance, strong anti-interference capability, and adaptability to harsh electromagnetic environments.
4. Equipped with grounding detection and zero-return detection functions. The test can only be conducted after confirming grounding and zero-return, ensuring safety and reliability.
5. High voltage regulation stability, smooth voltage adjustment across the full range. The output voltage adjustment uses an imported single multi-turn potentiometer, ensuring smooth voltage boosting and high adjustment precision. It also features coarse and fine adjustment functions. Voltage adjustment accuracy is better than 0.1%, voltage and current measurement error is less than 1.0%, and ripple factor is better than 0.5%.
6. High precision and accurate measurement. Both voltage and current meters are digital displays, with voltage resolution of 0.1kV and current resolution of 0.1uA. The voltmeter on the control box directly displays the voltage applied to the load test object, eliminating the need for an external voltage divider and simplifying wiring. The instrument can measure leakage current at both high and low voltage ends. The high-voltage end uses a circular shielded digital display, which is resistant to discharge shocks and has good anti-interference performance, suitable for on-site use.
7. Added high-precision 75%VDC-1mA function, bringing great convenience to zinc oxide arrester testing. With a simple press, no calculation is needed. The control box has a 75% voltage function key. During arrester testing, when the current rises to 1000uA, press the 0.75 button. The values displayed on the voltmeter and ammeter are then the 75% data. After completion, immediately return the boosting knob to zero, and also return the fine voltage adjustment knob to zero. Then press the green button to cut off the high voltage and turn off the power switch before proceeding with other tests.
8. The bottom is equipped with three built-in support legs, increasing the stability of the voltage doubling cylinder.
9. The voltage doubling cylinder has a sectional structure, providing flexibility and convenience for field use. One machine can serve multiple purposes, making it economical and practical.
10. Convenient overvoltage setting function, using computer digital setting. By pressing the setting key and the set key simultaneously, the set voltage value is displayed directly, making operation more flexible. The displayed value unit is kV. This machine also has time display and setting functions, as well as a forced start function for the generator power supply.
11. Approaching current boosting algorithm, automatically timing the current endurance after reaching the set target output current, and the motor automatically returns to zero after timing ends.
11. Negative polarity output, zero start, continuously adjustable, with various protection functions such as overvoltage, overcurrent, zero-return, grounding protection, and unique disconnection protection. The automatic protection circuit is powerful, providing comprehensive and reliable protection, ensuring safe operation. All technical indicators are superior to industry standards and similar products.
