◆ MEXB-L Generator AC Voltage Withstand Test Device (Power Frequency Induction) Product Usage
Due to their large electrical capacity, large thermal and hydroelectric generators require a larger test capacity for AC withstand voltage. When using a frequency modulation resonant system for AC withstand voltage, higher requirements are placed on the variable frequency power supply. Currently, most testing units in China use resonant transformers for testing, but the resonant transformers themselves are heavier, often weighing up to tons, making on-site testing more inconvenient. Our company has designed and manufactured a dedicated induction generator AC voltage withstand resonant boost device to address this current situation. This series of devices adopts the working mode of parallel connection of multiple reactors, adjusts the inductance of adjustable reactors, and achieves resonance state by connecting fixed reactors of different numbers in parallel. Reasonably configure fixed and adjustable reactors of different capacities according to the size of the test capacity, in order to reduce the power supply capacity and the volume and weight of the test equipment to a greater extent.

The MEXB-L generator AC withstand voltage test device (power frequency induction) has multiple revolutionary technological advantages compared to similar domestic generator AC withstand voltage devices:

1. Conducting AC withstand voltage tests on generators of the same voltage level and capacity greatly reduces the overall weight of the equipment, with a single piece of equipment weighing 1/5 of traditional equipment, completely solving the problem of difficult on-site handling;
2. The entire device has advanced principles and adopts advanced casting technology. The entire system is a dry structure and uses precision machined transmission mechanisms, greatly reducing the noise of equipment operation;
3. Configure a dry-type column regulator with good output waveform and stability;
4. The excitation transformer has high and low voltage dual outputs, and after configuring a rectifier silicon stack, it can also perform DC withstand voltage tests on the generator;
5. The inductance configuration of fixed and adjustable reactors is reasonable, and they have good resonance points for different capacitance test samples without resonance blind spots;
6. The operating system can not only adjust voltage and inductance, but also monitor the power factor, high voltage side current, high voltage test voltage, low voltage output voltage, and air gap rise and fall values of the circuit in real time, with overcurrent and overvoltage protection;