(1) Controlled by an embedded touch screen internally, with optimized operation functions and simple operation
2) Automatic frequency sweeping to find the resonance point. Frequency range 20-300Hz, manual setting of sweep range available, maximum sweep time 3 minutes (full frequency sweep). Frequency resolution 0.1Hz
3) Automatic test: users can set test procedures, and the system automatically completes the test process according to the set procedures
4) During automatic testing, the system automatically tracks the resonance state. When the resonance state changes beyond the set area, the system automatically tracks the resonance point. Throughout the process, the system ensures optimal output state, and draws frequency-voltage curves during frequency adjustment.
5) During withstand voltage test, the voltage is automatically tracked. When the voltage fluctuates normally, it automatically adjusts to the target voltage, and the Variable Frequency Series Resonance Test Device is operated by the user according to the test situation
6) Full voltage output protection: during voltage regulation, it is strictly ensured that the variable frequency power supply will not output full voltage
7) The software has undergone strict simulation operation tests, ensuring safe, stable, and reliable operation
8) The Variable Frequency Series Resonance Test Device automatically saves test data, with data query function to retrieve previous test data based on query conditions;
9) The LCD screen can display power supply voltage and current; high-voltage output frequency, voltage, and current
10) Protection functions: includes power-off, overcurrent, overvoltage, and flashover protection;
① Overvoltage protection: overvoltage protection value can be manually set; when the output voltage of the entire device reaches the protection setting value, the entire device is automatically cut off
② Overcurrent protection: overcurrent protection value can be manually set; when the output current of the entire device reaches the protection setting value, the entire device is automatically cut off
③ Breakdown protection: has discharge or flashover protection function. When a ground flashover occurs on the high-voltage side, the entire device is automatically cut off. It will not cause harm to test equipment or personnel, and electronic components inside the variable frequency power supply will not break down
④ Power-off protection: after the test power supply is cut off, the device can quickly protect
11) The internal structure of the variable frequency power supply and its components remain in their relative positions without damage or loosening of fasteners after normal road and railway transportation



