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YTVLF-50/1.1 Very Low Frequency Cable Withstand Voltage Test Device - Yangzhou Darui

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YTVLF-50/1.1 Very Low Frequency Cable Withstand Voltage Test Device - Yangzhou Darui

Published: 2018-08-11

Views: 2922

Category: Explosion-proof Heater

Product Description

YTVLF-50/1.1 Very Low Frequency Cable Withstand Voltage Test Device


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Product Introduction:

1. Incorporating modern digital frequency conversion advanced technology, using microcomputer control, automatic voltage boost, step-down, and discharge, with photoelectric control output of 0.1Hz sine wave, and manual intervention is possible during automatic voltage boost. Due to full electronic design, it is small in size and light in weight, with a large screen LCD display that is clear and intuitive, and can display the output waveform with print output. The design indicators fully comply with the "General Technical Conditions for Special Test Instruments for Power Equipment, Part 4: General Technical Conditions for Very Low Frequency High Voltage Generators" power industry standard, and it is very convenient to use. Currently, both domestic and international methods use mechanical modulation and demodulation to generate very low frequency signals, resulting in non-standard sine wave waveforms, large measurement errors, spark discharge in the high-voltage part, heavy equipment, and the second and fourth quadrants of the sine wave require high-power high-voltage resistors for discharge shaping, so the overall power consumption of the equipment is high. This product can overcome these shortcomings. In addition, the protection functions are designed as follows:

2. Overvoltage protection: When the test voltage exceeds the set value by ten percent (or 1.1 times), the 80KV/0.5μF (Intelligent/Automatic) 0.1Hz Very Low Frequency High Voltage Generator will stop 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 precisely stopped for protection according to the set value; the low-voltage side will stop protection when the current exceeds the rated current, with an action time of less than 20 milliseconds.



Product Features:

1. The 80KV/0.5μF (Intelligent/Automatic) 0.1Hz Very Low Frequency High Voltage Generator combines modern digital frequency conversion advanced technology, using microcomputer control, with fully automated voltage boost, step-down, measurement, and protection, and manual intervention is possible during automatic voltage boost. Due to full electronic design, it is small in size and light in weight, with a large screen LCD display that is clear and intuitive, and can display the output waveform, with a printer output test report. The design indicators fully comply with the "General Technical Conditions for Special Test Instruments for Power Equipment, Part 4: General Technical Conditions for Very Low Frequency High Voltage Generators" power industry standard, and it is very convenient to use.

2. Currently, both domestic and international methods use mechanical modulation and demodulation to generate very low frequency signals, resulting in non-standard sine wave waveforms, large measurement errors, spark discharge in the high-voltage part, heavy equipment, and the second and fourth quadrants of the sine wave require high-power high-voltage resistors for discharge shaping, so the overall power consumption of the equipment is high.

3. From years of theory and practice at home and abroad, it has been proven that using 0.1Hz very low frequency withstand voltage test instead of power frequency withstand voltage test not only has the same equivalence but also greatly reduces the size and weight of the equipment. Theoretically, the capacity is about one five-hundredth of power frequency, and it is simple to operate, with more advantages than power frequency testing. This is why developed countries generally adopt this method.

Detailed Introduction

Incorporating modern digital frequency conversion advanced technology, using microcomputer control, with fully automated voltage boost, step-down, measurement, and protection, and manual intervention is possible during automatic voltage boost. Due to full electronic design, this product is small in size and light in weight, with a large screen LCD display that is clear and intuitive, and can display the output waveform, with a printer output test report.

Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.



 


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