180kVA/60kV Series Resonance Withstand Voltage Test Device
Product Introduction:
It consists of a variable frequency power supply, an excitation transformer, high-voltage reactors, and a capacitive voltage divider. The capacitance of the test object and the reactor form a series resonance connection; the voltage divider is connected in parallel with the test object to measure the resonance voltage on the test object and serve as an overvoltage protection signal; the frequency-modulated power output is coupled to the series resonance circuit through the excitation transformer, providing the excitation power for the series resonance.
180kVA/60kV Series Resonance Withstand Voltage Test Device
Product Functions:
1) The variable frequency power supply is placed both vertically and horizontally, especially suitable for on-site operation and observation;
2) Both internal and external are equipped with special shock-absorbing rubber support feet and protective aluminum boxes, which can effectively reduce the bumping and vibration during transportation and the impact during lifting. This ensures the long-term stability and reliability of the variable frequency power supply;
3) Parameter display: Touch screen or external mouse large-screen LCD interface display system
It can display resonance voltage (i.e., the target voltage set before the test), test frequency, measured frequency, low-voltage voltage, low-voltage current, withstand voltage time, overvoltage protection, overcurrent protection, flashover protection, step voltage increase and step timing, operation mode switching, capacitance, inductance, frequency interchange calculation, parameter query, etc. It can also display frequency curves, voltage curves, etc., to intuitively judge the accuracy and stability of the resonance frequency of the current test;
4) Parameter setting: The large-screen touch LCD color screen and external mouse can directly complete the setting of various parameters, including start frequency, end frequency, start voltage, step voltage increase and timing, measurement voltage divider ratio, excitation transformer ratio, overvoltage protection, overcurrent protection, flashover protection, test mode, capacitance inductance frequency interchange calculation, parameter setting prompts, and help, etc.;
5) Test mode: Touch screen and external mouse operation, with three operating states: fully automatic, semi-automatic, and manual. It has functions such as voltage increase, tuning (including manual and automatic), step voltage application and timing, operating status, mode switching, fault prompts, capacitance inductance frequency interchange calculation, etc.;
6) Protection functions and information prompts: It has multiple protection functions such as high-voltage overvoltage protection, low-voltage overcurrent, overcurrent protection, detuning protection, zero position, flashover protection, emergency stop, undervoltage protection, etc.;
7) Data storage function: Test result saving (manual save), printing, uploading, recall, etc.
① Test results: After manual or automatic test completion, the detailed parameters during the test can be displayed on the test result interface. When the test is interrupted, the interruption status can be prompted. The parameters can be saved in the memory, which is non-volatile memory and can save 50 test records;
