Variable frequency induction generator AC voltage withstand device

MDXZB seriesVariable frequency induction generator AC voltage withstand deviceWidely used in industries such as power, metallurgy, petroleum, chemical, etc., suitable for high-capacity and high-voltage capacitive test samples, such as generators, transformers, etc GIS、 Handover and preventive tests for high-voltage cross-linked cables, transformers, bushings, etc. Our company has independently developed frequency conversion and voltage regulation software technology in the field of frequency conversion series resonance high voltage testing. In the domestic high voltage testing industry, this technology is used to design and manufacture a complete set of frequency conversion series parallel resonance testing devices using 16 bit fine frequency conversion, 10KHz carrier frequency, SPWM, and imported original IPM integrated modules, which comply with relevant national regulations and requirements for high voltage testing.

Variable frequency induction generator AC voltage withstand deviceworking principle
The variable frequency series resonance test device applies the principle of series parallel resonance. By adjusting the output frequency of the variable frequency controller, the inductance L of the reactor in the circuit and the capacitance C of the test sample resonate, and the resonant voltage is the voltage applied to the test sample. The power supply is provided through the frequency modulation controller, and the test voltage is initially boosted by the excitation transformer to apply high voltage to the reactor L and the test sample CX. By changing the output frequency of the frequency modulation controller, the circuit is in series resonance state; The resonant frequency of the circuit depends on the capacitance CX of the test sample and the inductance L of the reactor. Adjust the output voltage of the variable frequency controller to achieve the required voltage value of the high voltage on the test sample.
Product features
The large screen displays test data and test status, and has real-time operation step prompt function
Can flexibly adjust the experimental voltage, frequency range, and pressurization time
The test results can calculate the capacitance of the test sample
Equipped with computer communication interface for easy communication and management of experimental data
Small size, light weight, easy operation
High resolution, frequency resolution of 0.001HZ
High safety and reliability, the system has overcurrent, overvoltage, and discharge protection functions, which can effectively protect personal and equipment safety. The test results can be printed and upgraded with software
Complete set composition
The complete set of equipment consists of a variable frequency voltage regulating power supply, excitation transformer, reactor, voltage divider, and compensation capacitor.

Technical Specifications
Environmental temperature: -10~45 ℃
Environmental humidity: ≤ 90%
Altitude: ≤ 2000M
Power input: 220V ± 10% single-phase 50Hz output 0-2220V (≤ 10KW)
380V ± 10% three-phase 50Hz output 0-400V
Rated test capacity: 0-8000KVA (optional)
Resonant voltage: 0-1000KV (optional)
Frequency adjustment range: 0.1-300Hz
System measurement accuracy: Level 0.5
Frequency regulation division rate: 0.01Hz
Instability: ≤ 0.05%
Output waveform: sine wave
Waveform distortion rate: ≤ 0.5%
Noise: ≤ 60dB
Reactor Q value: 30-200 (optional)