ZSCF Ultra-Low Frequency Withstand Voltage Test Device
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Product Features
It has power overcurrent, high-voltage overcurrent, and oil tank overheat protection functions. The high voltage cannot be started if the output regulator is not returned to zero. It is a replacement product for traditional power frequency withstand voltage test equipment.
Technical Parameters
Working Power: AC 220V±10% 50Hz±10%
Ambient Temperature: 0-40℃
Relative Humidity: ≤90%
Output Voltage: 0-30KV, 0-50KV, 0-80KV
Output Frequency: 0.1Hz, 0.05Hz, 0.02Hz
Load Capacity: At 0.1Hz output, max 1.1μF
At 0.05Hz output, max 2.2μF
At 0.02Hz output, max 5.5μF
Voltmeter Indication Accuracy: ≤3%
Ammeter Indication Accuracy: ≤5%
Model | Peak Voltage | Measurement Range | Weight | Application |
ZSVLF-60/1.1 | 60kV | 0.1Hz≤1.1μF | Controller: 4kg | For cables and generators with voltage ≤18kV, etc. |
Model | Peak Voltage | Measurement Range | Weight | Application |
ZSVLF-40/1.1 | 40kV | At 0.1Hz ≤1.1μF | Controller: 4kg | For cables and generators with voltage ≤15.75kV, etc. |
Technical Parameters
● Product Specification: 0-30kV (peak);
● Load Capacitance: 1.1μF at 0.1Hz, 2.2μF at 0.05Hz, 5.5μF at 0.02Hz.
● Working Power: AC220V±10%, 50Hz;
● Working Temperature: 0℃～40℃;
● Relative Humidity: ≤90%RH.
Parameter Table
| Model | Rated Voltage | Load Capacity | Weight | Main Application |
| VLF-30/1.1 | 30kV | 0.1Hz≤1.1uF | Controller: 4Kg Booster: 25Kg | Withstand voltage test for cables and generators below 10kV |
| 0.05Hz≤2.2uF | ||||
| 0.02Hz≤5.5uF | ||||
| VLF-60/2.2 | 60kV | 0.1Hz≤5uF | Controller: 5Kg Booster: 45Kg | Withstand voltage test for generators |
| 0.05Hz≤10uF | ||||
| 0.02Hz≤25uF | ||||
| VLF-80/3.5 | 80kV | 0.1Hz≤1.1uF | Controller: 5Kg Booster: 50Kg | Withstand voltage test for cables and generators below 35kV |
| 0.05Hz≤2.2uF | ||||
| 0.02Hz≤5.5uF |
Current, voltage, and waveform data are all directly sampled from the high-voltage side, so the data is real and accurate. Overvoltage protection: When the output exceeds the set voltage limit, the instrument will shut down for protection, with an action time of less than 20 milliseconds. Overcurrent protection: Designed with dual protection for high and low voltage. The high-voltage side can be shut down for protection according to the set value; when the current on the low-voltage side exceeds the rated current, it will shut down for protection, with an action time of less than 20 milliseconds. The high-voltage output protection resistor is designed inside the booster, so no external protection resistor is needed.
1. Current, voltage, and waveform data are all directly sampled from the high-voltage side, so the data is real and accurate.
2. Overvoltage protection: When the output exceeds the set voltage limit, the instrument will shut down for protection, with an action time of less than 20 milliseconds.
3. Overcurrent protection: Designed with dual protection for high and low voltage. The high-voltage side can be accurately shut down for protection according to the set value.
4. When the current on the low-voltage side exceeds the rated current, it will shut down for protection, with an action time of less than 20 milliseconds.
5. The high-voltage output protection resistor is designed inside the booster, so no external protection resistor is needed.
6. Due to the use of high and low voltage closed-loop negative feedback control circuit, there is no capacitive rise effect in the output.
Product Features
ZSCF Ultra-Low Frequency Withstand Voltage Test Device combines modern digital frequency conversion advanced technology, adopts microcomputer control, and fully automates boosting, step-down, measurement, and protection, with manual intervention possible during automatic boosting.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
