The withstand voltage test can be divided into AC withstand voltage test and DC withstand voltage test. The AC withstand voltage test can be divided into industrial frequency, variable frequency and 0.1Hz ultra-low frequency test technology. Among them, the 0.1Hz ultra-low frequency technology is the latest technology and is currently recommended by the International Electrotechnical Commission. Our company's new generation of this series of ultra-low frequency high-voltage generators is a core product independently developed using the latest American technology. It uses a 7-inch touch screen, the latest ARM7 single-chip microcomputer, a high-speed AD acquisition circuit, and is equipped with background management software. It overcomes many shortcomings of similar domestic products (see Table 1), and its cost-effectiveness is far higher than similar imported products. It is particularly suitable for electrical equipment with large insulation equivalent capacitance.
1. Advanced technology: digital frequency conversion technology, microcomputer control, fully automated test processes such as boost, buck, measurement, and protection.
2. Convenient operation: simple wiring, fool-proof operation.
3. Comprehensive protection: multiple protections (overvoltage protection, high and low voltage side overcurrent protection), rapid action (action time ≤ 10ms), safe and reliable instrument.
4. Safe and reliable: low voltage connection between the controller and the high voltage generator, photoelectric control, safe and reliable to use.
5. High and low voltage closed-loop negative feedback control circuit is adopted, and the output has no capacitance rise effect.
6. Complete configuration: capacitive touch screen, LCD Chinese character display, automatic storage, automatic printing.
7. Large test range: 0.1Hz, 0.05Hz, 0.02Hz and 0.021Hz multiple frequency selection, large test range.
8. Small size and light weight: very conducive to outdoor operations.
9. Chinese and English switching function
1. Output frequency: 0.1Hz, 0.05Hz, 0.02Hz, 0.01Hz
2. Load capacity: 0.1Hz maximum 0.5µF; 0.05Hz maximum 1.1µF; 0.02Hz maximum 2.2µF; 0.01Hz maximum 5.5µF
3. Measurement accuracy: 3%
4. Voltage positive and negative peak error: ≤3%
5. Voltage waveform distortion: ≤5%
6. Use conditions: indoor and outdoor; temperature: -10℃～+40℃; humidity: ≤85%RH
7. Power supply: voltage 220V±5%, 50±5Hz
Note: If a portable generator is used for power supply, the generator output voltage and frequency must be stable (generally required to have a power greater than 3kW, a frequency of 50Hz, and a voltage of 220V±5%)
8. The capacitance of the test product shall not exceed the maximum value of the rated capacitance of the instrument
9. Select products of appropriate specifications according to the test object
When in use, the capacitance of the test product shall not exceed the rated capacitance of the instrument. If the capacitance of the test product is too small, it will affect the output waveform. If it is less than 0.05µF, the instrument will not output normally. At this time, a 0.05 µF capacitor (provided by our company) can be connected in parallel to assist the output.
10. Estimation method of test product current:
Calculation formula: I = 2πfCU
We provide you with free consultation services
Engineers provide guidance for installation and commissioning
Technicians can provide on-site maintenance services and receive regular training
Perfect technical consulting service system
Send your message to us:
Contact Us
Address: China Optics Valley No. 1, Fenghuangyuan 2nd Road, Donghu High-tech Development Zone, Wuhan City
whmoen@163.com
24-Hour service hotline
15997412136
Unified service hotline
400-017-7185
Follow Us
