The correct selection of a frequency converter (FC) for the engine ensures reliable operation and protection. Let's look at how to choose a frequency converter by parameters.
Key parameters
- Power. The inverter is selected according to the power of the motor, or more precisely, according to its rated current.
- Rated current. The inverter current must be not lower than the motor current.
- Type of load. Constant torque (conveyor) or variable (pump, fan).
- Overload capacity.For heavy starts, a reserve is needed.
Load type is important
| Load | Example | Inverter requirement |
|---|---|---|
| Variable torque | Pumps, fans | Standard inverter, energy saving |
| Constant torque | Conveyors, crushers | Overload reserve |
Additional functions
- Built-in motor protection.
- PID controller (to maintain pressure, flow).
- Braking resistor for fast braking.
- Control panel and interfaces.
It is important to note that operation from the inverter requires attention to cooling and insulation of the motor. When rewind stable insulation is used under the frequency driver. Correct selection of the inverter and engine preparation ensure long-term operation of the combination. The condition of the engine will be assessed by diagnostics.
Do you need help with selecting a frequency converter and preparing the engine in Tashkent? Elektromotors engineers will advise you - leave a request.