Huazheng Electric HZHG-F-1.0 digital kilovoltmeter consists of a high stabilized resistive-capacitive type passive high-voltage divider and a precision digital voltmeter for measuring AC/DC high voltage on the site of electric power systems and in various high-voltage laboratories. Both of them with measuring cable, power supply cord, and operating manual are placed in a portable aluminium case for easy carrying and use.
I.Technical Specifications
Model | HZHG -F50 | HZHG -F100 | HZHG-F150 | HZHG-F200 | HZHG-F300 |
Measuring Range(kV) | AC 50kV | AC 100kV | AC 150kV | AC 200kV | AC 300kV |
DC 50kV | DC 100kV | DC 150kV | DC 200kV | DC 300kV | |
Measuring Accuracy | AC:≤1.0 % DC:≤0.5% | ||||
Divider Impedance | 240MΩ | 400MΩ | 600MΩ | 800MΩ | 1200MΩ |
Divider Capacity | 250pF | 250pF | 150pF | 250pF | 75pF |
Voltage Ratio | 3000∶1 | 5000:1 | 7500:1 | 10000:1 | 15000:1 |
Environment | -5~40℃ RH:≤80% |
II.Working Principle
The AC/DC digital kilovolt metre is composed of two parts of a high voltage divider and a digital kilovolt metre. The high voltage divider is of a passive resistive-capacitive type, assembled from precision low temperature drift resistors and high quality condensers. Digital kilovolt meter consists of ture RMS value circuit, peak values measuring circuit and digital voltmeter. Voltage divider is connected to digital kilovolt meter by a coaxial measuring cable. The high voltage is reduced to sample value by the voltage divider, and be fed to digital voltmeter. Through function selector, the voltmeter can display DC,AC effective(RMS)value, AC peak value, and AC peak/ value with high measuring accuracy and convenience in use.