Inverter reactors are key electrical components in power electronics systems, primarily used to suppress sudden current fluctuations, stabilize voltage, and improve power factor. Proper operation of inverter reactors is crucial to system safety and efficiency. The following are standard operating procedures and precautions.
I. Pre-Operation Preparation
1.Inspect the equipment: Verify that the reactor is externally undamaged, that the terminals are not loose or oxidized, and that the insulation is intact.
2.Parameter Verification: Verify that the rated voltage, current, and frequency match the system to avoid overload operation.
3.Environmental Requirements: Ensure the installation environment is well ventilated, that the temperature does not exceed the reactor's tolerance range (typically -20°C to +40°C), and that the humidity is below 90%.
II. Operation Procedures
1.Pre-Power-On Inspection: Disconnect the power supply and verify that the reactor is properly connected to the inverter and load, and that the grounding is secure.
2.Gradual Power-On: First, close the main circuit breaker, then start the inverter control power supply. Observe the reactor for any unusual noises (any unusual noises may indicate an internal short circuit).
3.Load Connection: After the reactor stabilizes, gradually apply load and monitor the current waveform and temperature rise to ensure there is no overshoot or oscillation.
III. Operation Monitoring
•Real-Time Monitoring: Observe the voltage drop and current ripple across the reactor using an instrument. The normal range should be within the design value (typically, voltage drop ≤ 5%).
•Temperature Management: Regularly check the reactor surface temperature. If it exceeds 70°C, shut down the unit to investigate heat dissipation issues.
IV. Shutdown and Maintenance
1.Power-Off Sequence: First, remove the load, then shut down the inverter, and finally disconnect the main power supply.
2.Regular Maintenance: Clean the terminals every six months, check the insulation resistance (should be ≥ 100 MΩ), and tighten the bolts to prevent loosening.
Precautions: Wear insulating protective gear during operation. Never adjust wiring while energized. If any abnormal vibration or odor is detected, immediately shut down the unit for inspection.
Adhering to these specifications will ensure long-term stable operation of the inverter reactor, extend equipment life, and safeguard system safety.