Possible faults of energy storage inverter

What are the most common faults on inverters?

In this article, we explore the three most common faults on inverters and how to fix them. These include overvoltage and undervoltage issues, which can be caused by high intermediate circuit DC voltage due to high inertia loads decelerating too quickly.

What causes overvoltage in inverters?

Overvoltage in inverters is caused by a high intermediate circuit DC voltage. This can arise from high inertia loads decelerating too quickly, the motor turns into a generator and increases the inverter’s DC voltage.

What causes inverter output imbalance?

Output imbalance is generally manifested as motor shaking and unstable speed. The main reasons are: module failure, drive circuit failure, reactor failure, etc. 6. Overload Overload is also one of the faults that the inverter frequently beats.

Why is my inverter NOT working?

This is a very serious phenomenon of overcurrent. The main reasons are: load short circuit, mechanical parts are stuck; inverter module is damaged; motor torque is too small, etc. (2) It trips when powered on. This phenomenon generally cannot be reset. The main reasons are: module is bad, drive circuit is bad, current detection circuit is bad.

What causes low DC voltage in inverters?

Low DC voltage in inverters is typically caused by low intermediate circuit DC voltage. This can be due to a missing supply voltage phase from a blown fuse, faulty isolator or contactor, internal rectifier bridge fault, or simply low mains voltage. To fix this, check the mains supply and fuses, and ensure the isolator and contactor are functioning correctly.

Why does my inverter trip when resetting?

(1) When restarting, the inverter trips as soon as the speed increases. This is a very serious phenomenon of overcurrent. The main reasons are: load short circuit, mechanical parts are stuck; inverter module is damaged; motor torque is too small, etc. (2) It trips when powered on. This phenomenon generally cannot be reset.