Series Resonance Withstand Voltage Equipment
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I. Main technical parameters and features:
The variable frequency series resonance complete set of devices adopts 16-bit fine frequency modulation, voltage regulation software, 10KHz carrier frequency, SPWM technology and imported original IPM integrated modules and other accessories. It is composed of variable frequency voltage regulating power supply, excitation transformer, high-voltage reactor, high-precision capacitive voltage divider and compensation capacitor.
Ambient temperature: -25～50℃
Working humidity: ≤90%
Altitude: ≤3000M
Power supply: AC 220V single-phase 50Hz (above 10KW AC 380V three-phase four-wire, 50Hz)
Frequency adjustment range: 30～300 Hz (can be widened according to user requirements)
System measurement accuracy: Level 1
Frequency adjustment resolution: 0.1 Hz
Instability: ≤0.05%
Output waveform: Sine wave
Waveform distortion rate: ≤0.5%
Noise: ≤60dB
Reactor Q value: 30～200
II. Main features:
☆Small volume, light weight, easy operation
☆Blue screen displays test data, test status, and has real-time operation step prompts
☆Can flexibly set test voltage, frequency adjustment range, pressurization time, protection current
☆Test results can calculate the capacitance of the tested object
☆Has computer communication interface, can communicate with computer and manage test data
☆High resolution: frequency resolution is 0.01Hz
☆High safety and reliability. The device has overcurrent, overvoltage, IPM and discharge protection functions, which can effectively protect personal and equipment safety.
☆Test results can be printed
III. Introduction:
The variable frequency resonance test device is widely used in electric power, metallurgy, petroleum, chemical and other industries, and is suitable for handover and preventive tests of large-capacity, high-voltage capacitive test objects.
Series resonance test equipment is mainly used for variable frequency AC withstand voltage tests of 10kV, 35kV, 110kV cross-linked rubber-plastic power cables, 66kV, 110kV, 220kV combined electrical appliances (GIS), and power frequency AC withstand voltage tests of hydraulic and thermal generators or power transformers. Its basic principle is to use an adjustable (30--300Hz) series resonance test device to resonate with the capacitance of the tested object to generate an AC test voltage.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
