Product Details

Variable FrequencySeries Resonance Test Device

It uses the series resonance principle, utilizes an excitation transformer to excite the series resonance circuit, adjusts the output frequency of the variable frequency controller, so that the circuit inductance L and the test product C resonate in series, and the resonance voltage is the voltage applied to the test product. 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 products.

The series resonance withstand voltage device mainly consists of a variable frequency controller, an excitation transformer, a high-voltage reactor, and a high-voltage divider. The variable frequency controller is divided into two categories: those with 20KW and above are console type, and those below 20KW are portable box type; it consists of a controller and a filter. The main function of the variable frequency controller is to convert the 380V or 200V power frequency sinusoidal AC power with fixed amplitude and frequency into a sinusoidal wave with adjustable amplitude and frequency, and provide power for the entire device. The function of the excitation transformer is to boost the voltage output from the variable frequency power supply to a suitable test voltage. The high-voltage reactor L is an important component of the resonance circuit. When the power frequency equals 1/(2π√LCX), it resonates in series with the test product CX.

Variable FrequencySeries Resonance Test Device is suitable for AC withstand voltage tests of 10KV, 35KV, 110KV, 220KV, 500KV polyethylene power cables. It is suitable for AC withstand voltage tests of 60KV, 220KV, 500KV GIS. It is suitable for power frequency withstand voltage tests of large transformers and generator sets; induced withstand voltage tests of power transformers; and ground resistance measurement.

Tuning Resonance Resonant Withstand Voltage Test Equipment

Product Aliases

Series resonance, series resonance withstand voltage test device, variable frequency resonance, variable frequency series resonance, series resonance test equipment, series resonance principle, variable frequency series resonance device, introduction to series resonance device, series variable frequency resonance, variable frequencyseries resonance test device, variable frequency series resonance, variable frequency series resonance withstand voltage test device, series resonance, series resonance test device, series resonance withstand voltage test device, series resonance withstand voltage tester

Product Features

1. High stability and reliability. The system uses imported power components as the core of power conversion, with stable voltage and frequency output, reasonable electromagnetic compatibility design, and complete protection functions. After multiple tests of high voltage direct short circuit to ground, the system remains intact, and the system also has strong overload capacity.

2. Strong automatic tuning function. When the system automatically tunes, it automatically sweeps frequency from 30Hz to 300Hz, displays the sweep curve, and users can intuitively see the system tuning process; after the sweep is completed, the system performs a fine frequency sweep with a resolution of 0.01Hz within the range of ±5Hz based on the resonance frequency point initially found by the sweep, and finally locks the resonance frequency.

3. Supports multiple test modes. The system supports test modes such as "automatic tuning + manual voltage regulation", "automatic tuning + automatic voltage regulation", and "manual tuning + manual voltage regulation". It is recommended to use the "automatic tuning + manual voltage regulation" mode, which can quickly find the resonance point and control the test process through manual voltage regulation, with higher safety.

4. The system has a friendly human-machine interaction interface. Test parameter settings, test control, and test results are displayed on the same screen, which is intuitive and clear, and has automatic timing and operation prompt functions. Full touch screen operation and display, with test data saving and querying.

5. Complete protection functions. It has zero position protection (when the voltage output control knob is not at zero, the system is prohibited from starting), overvoltage protection, overcurrent protection, flashover protection and other functions, ensuring the reliability of the system.

Product Parameters

Technical Parameters

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