1、 Daily inspection and operation standards

1. Wiring inspection
   • Before each use, it is necessary to confirm that all wiring is correct and secure to avoid equipment damage or test failure caused by wiring errors.
   • Grounding must be reliable, using a single point grounding method to prevent interference caused by multiple points of grounding.
2. Operator requirements
   • The operator must be a professional in high-voltage testing, familiar with equipment principles and operating procedures, and strictly comply with safety regulations.
   • At least 2 people should participate in the experiment, with one person operating and the other monitoring to ensure safety.
3. Standard operating procedures
   • It is strictly prohibited to directly boost the voltage without tuning. Automatic tuning must be completed and the resonance point confirmed before conducting the test.
   • During the experiment, it is necessary to monitor the power supply voltage to ensure that it is within the specified range (if the voltage is too low, the test should be paused).
   • After the frequency converter controller runs continuously for more than 30 minutes, let the fan continue to work and dissipate heat after disconnecting to avoid internal overheating.

2、 Environmental management

1. Storage environment
   • The equipment should be stored in a dry and clean area to prevent rainwater and dust from entering the interior, and to prevent electronic components from getting damp and short circuiting.
   • Regular ventilation is required during long-term storage to avoid a decrease in insulation performance caused by humid environments.
2. Usage environment
   • The ambient temperature should be between 5 ° C and 40 ° C, and the relative humidity should not exceed 80% to prevent high temperature and humidity from affecting equipment performance.
   • Avoid using in environments with strong electromagnetic interference to prevent inaccurate test data caused by signal interference.
   • The experimental site needs to be equipped with an exhaust system to ensure timely dissipation of the heat generated by the equipment and avoid overheating.

3、 Component maintenance and upkeep

1. Regularly inspect components
   • reactorCheck if the inductance is normal to avoid resonance point deviation caused by changes in inductance.
   • Capacitive voltage dividerCheck the high voltage capacity and dielectric loss to ensure accurate voltage division ratio.
   • Incentive TransformerCheck the continuity of high and low voltage coils to prevent abnormal output voltage caused by coil damage.
   • Compensation capacitorCheck the on/off status to ensure that the circuit capacitance meets the test requirements.
2. Cleaning and dust prevention
   • Regularly clean the surface and internal dust of the equipment to prevent dust accumulation from affecting heat dissipation and insulation performance.
   • Use a dry soft cloth to wipe the equipment and avoid using chemical cleaning agents to corrode the components.
3. Mobile and Transportation
   • When moving devices, handle them gently to avoid severe vibrations that may cause internal components to loosen or be damaged.
   • During transportation, it is necessary to secure the equipment to prevent sliding or collision, and if necessary, use cushioning materials for protection.

4、 Fault handling and prevention

1. Common faults and their solutions
   • The fan cannot startCheck if it is caused by emergency stop, fault protection or mismatch protection not resetting. Press the "fault reset" button and restart. If it still cannot be started, please contact the manufacturer for assistance.
   • Automatic tuning failedCheck the grounding device, test circuit wiring, and the continuity of each component to ensure that there is no open or short circuit in the circuit. If all components are functioning properly but still cannot be tuned, please contact the manufacturer.
   • Unable to boost to the test voltageCheck whether the capacitance of the reactor matches that of the test sample, whether the loss of the test sample is too high, or whether the high-voltage connecting wire is too long. The problem can be solved by parallel compensating capacitors, series reactors, or shortening high-voltage lines.
2. preventive maintenance
   • Regularly conduct preventive tests on equipment, such as insulation resistance testing, dielectric loss testing, etc., to detect potential faults in advance.
   • Develop a reasonable maintenance cycle based on equipment usage frequency and testing conditions to ensure that the equipment is always in good condition.