HZDP-50K Ultra-Low Frequency High Voltage Generator

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HZDP-50K Ultra-Low Frequency High Voltage Generator

Product Description

VLF (Very Low Frequency) Testers are suitable for testing power cables, transformers, switchgear, rotating machinery and other electrical apparatus.

The product combines modern advanced digital variable frequency technology and micro computer control together, therefore, it can realize the full automatic voltage boost, stepdown, measurement and protection as well as the manual intervention in the process of automatic voltage boost. The full electronic design ensures the small size and light weight. The big LCD screen ensures the clear and visual display, and can display the output sinusoidal wave form. The printer outputs test reports. In addition, the product has features as follows:

1. Data of current, voltage, wave form can be directly sampled at high voltage side, so the data is real and accurate.

2. Overvoltage protection: If the output exceeds the set limit of voltage, the instrument will shut-down to protect itself, the actuation time is less than 20ms.

3. Overcurrent protection: It is high-low voltage dual protection in the design, the accurate shut-down protection can be made according to the set value at high voltage side; If the current on low voltage side exceeds the rated current, the instrument will take shut-down protection, the actuation time are both less than 20ms.

4. A high voltage output protective resistor is provided in the voltage boost body in the design and this eliminates the need of additional protective resistor connected outside

50KV VLF .jpg

Model	Peak voltage	Measuring range	Weight	Purpose
VLF-30	30KV	0.1Hz,=1.1µF	Controller: 4 kg Booster: 25 kg Size: LWH 323174323	10KV and below voltage cable,generator
		0.05Hz,=2.2µF
		0.02Hz,=5.5µF
VLF-50	50KV	0.1Hz,=1.1µF	Controller: 6 kg Booster: 45 kg Size: LWH 357210365	15.75KV and below voltage cable, generator
		0.05Hz,=2.2µF
		0.02Hz,=5.5µF
VLF-60	60KV	0.1Hz,=1.1µF	Controller: 6 kg Booster: 50 kg Size: LWH 357220370	18KVand below voltage cable, generator
		0.05Hz,=2.2µF
		0.02Hz,=5.5µF
VLF- 80	80KV	0.1Hz,=1.1µF	Controller: 8 kg Booster: 90 kg Size: LWH 357240390	35KV and below voltage cable, generator

How to choose the suitable products for test

Please make sure that the capacitance of test products is below the instrument rated capacitance. The waveform will be influence if the capacitance of test products is too small and the instrument can not normally output when it below 0.05µF. 0.1µF capacitor in parallel to auxiliary output. Below is capacitance of some instrument for your reference.

Certifications

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HuaZheng Electric Manufacturing (Baoding) Co.,Ltd is the supplier of the State grid in China.

Huazheng supplied the electric equipment to the government of China , Products are used by

more than 20 provinces in China. We also export to other countries, like Brazil, Chile, Malysia, Vietnam and other countries. We supplied the transformer tester for the big power station, We also supplied the transformer oil tester, like transformer oil dielectric tester (BDV tester), transformer losstester, transformer oil acid tester, flash point tester and so on. The products Huazheng supplied as follows:

Transformer tester, Cable fault locator, Power quality analyzer, transformer oil tester,High voltage tester, Insulation tester, Earth resistance tester and so on.

2017 Hot sale high voltage oil immersed insulation transformer .jpg