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High voltage test series

NR-DP series ultra-low frequency high voltage generator

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NR-DP series ultra-low frequency high voltage generator

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Product description

Product Introduction

Ultra low frequency insulation withstand voltage test is an alternative to power frequency withstand voltage test. Due to the large capacitance of large generator, cable and other test objects, large capacity test transformer or resonant transformer is required for power frequency withstand voltage test, resulting in large volume and weight of equipment and extremely inconvenient on-site use. The experiment shows that using 0.1Hz ultra-low frequency withstand voltage test instead of power frequency withstand voltage test has agreed equivalence, and the equipment has small volume, light weight and convenient field use.

Main Feature

◆ current, voltage and waveform data are directly sampled from the high voltage side, and the data is accurate;

◆ it has overvoltage protection function. When the output exceeds the set voltage limit, the instrument will be shut down for protection, and the action time is less than 20ms;

◆ it has overcurrent protection function and is designed with high and low voltage dual protection. The high-voltage side can be accurately shut down for protection according to the set value; When the current at the low-voltage side exceeds the rated current, shutdown protection will be carried out, and the action time is less than 20ms;

◆ the high-voltage output protection resistor is designed in the booster body, so there is no need to connect another protection resistor outside;

◆ due to the use of high and low voltage closed-loop negative feedback control circuit, the output has no rise effect.

Technical Parameters

◆ output voltage: 30KV / 6

product description

Main Feature

　　◆ Current, voltage, and waveform data are directly sampled from the high-voltage side, and the data is accurate;

　　◆ With over-voltage protection function, when the output exceeds the set limit voltage value, the instrument will shut down for protection, the action time is less than 20ms;

　　◆ With overcurrent protection function, designed with high and low voltage dual protection, the high voltage side can be accurately shutdown protection according to the set value; when the current on the low voltage side exceeds the rated current, the shutdown protection will be performed, and the action time is less than 20ms;

　　◆ The high-voltage output protection resistor is designed in the booster body, so there is no need to connect a protection resistor outside;

　　◆ Since the high and low voltage closed-loop negative feedback control circuit is adopted, the output has no uplift effect.

Technical Parameters

　　◆ Output voltage: 30kV/60kV/80kV

　　◆ Output frequency: 0.1Hz/0.05Hz/0.02Hz

　　◆ Load capacity: 0.1 Hz≤1.1μF/0.05Hz≤2.2μF/0.02Hz≤5.5μF

　　◆ Measurement accuracy: 3%

　　◆ Positive and negative peak error: ≤3%

　　◆ Waveform distortion: ≤5%

　　◆ Power supply: 0-220V 50 Hz

　　◆ Weight: Controller: 4kg Booster: 25kg

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