Functional Features
◆ The product combines modern digital variable frequency advanced technology, adopts microcomputer control, and the boosting, bucking, measurement, and protection are fully automated, and manual intervention can be performed during the automatic boosting process
◆ Due to full electronic design, it is small in size and light in weight, with a large screen LCD display, clear and intuitive, and can display the output waveform, and the printer outputs the 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 Ultra-Low Frequency High Voltage Generators" power industry standard, and are very convenient to use
◆ Current, voltage, and waveform data are 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 stop protection, and the action time is less than 20 milliseconds
◆ Overcurrent protection: Designed with dual protection for high and low voltage. The high-voltage side can perform precise shutdown protection according to the set value; the low-voltage side will perform shutdown protection when the current exceeds the rated current, and the action time is less than 20 milliseconds
◆ The high-voltage output protection resistor is designed inside the booster body, so no additional protection resistor is needed outside
◆ Due to the use of high and low voltage closed-loop negative feedback control circuit, there is no capacitive rise effect in the output
Technical Parameters
◆ Output rated voltage: 30kv 50kv 80kv 100kv
◆ Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
◆ Load capacity: 0.1 Hz 1.1?F
0.05 Hz 2.2?F
0.02 Hz 5.5?F
◆ Measurement accuracy: 3%
◆ Voltage positive and negative peak error: ≤3％
◆ Voltage waveform distortion: ≤5％
◆ Operating conditions: Indoor, outdoor
Temperature: -10℃∽+40℃
Humidity: ≤85％RH
Product Introduction
SXCDP Ultra-Low Frequency High Voltage Generator Withstand Voltage Test Device is mainly used for withstand voltage testing of polyethylene insulated power cables, and can also be used for insulation withstand voltage testing of large power transformers. Using ultra-low frequency high voltage to test the withstand voltage of power cables is a new method.
SXCDP Ultra-Low Frequency High Voltage Generator Withstand Voltage Test Device When performing power frequency AC withstand voltage tests on large generators, cables and other test objects, due to their large capacitance of the insulation layer, a large test transformer or resonant transformer is required. Such huge equipment is not only bulky and expensive, but also very inconvenient to use. To solve this contradiction, the power department has adopted reducing the test frequency, thereby reducing the current and the capacity of the test power supply. From years of theory and practice at home and abroad, it has been proved that using 0.1HZ or lower frequency test power supply to replace power frequency AC withstand voltage test can not only achieve the same test effect, but also greatly reduce the volume and weight of the power supply equipment, about one five-hundredth of the power frequency. The test procedure is greatly simplified, and it has more advantages than the power frequency test.
