Hello everyone,
I would like to display the speed and current of a slip ring motor. The current flowing through the rotor phases of the motor has the following characteristics:
The RMS value of the current is proportional to the torque delivered on the motor shaft.
The frequency of this current is inversely proportional to the motor's speed (e.g., 0.5 Hz indicates a motor running at nominal speed with 1% slip, while 50 Hz in Europe corresponds to a stationary motor).
A Hall effect sensor measures the current in one rotor phase, and a frequency meter extracts the frequency value of this current, transmitting it to another display in the form of a 4-20 mA signal.
My question is: Do you have any suggestions for a display unit that could be used in a dusty environment (e.g., a cement plant) and instantly display the data?
Thank you!
I would like to display the speed and current of a slip ring motor. The current flowing through the rotor phases of the motor has the following characteristics:
The RMS value of the current is proportional to the torque delivered on the motor shaft.
The frequency of this current is inversely proportional to the motor's speed (e.g., 0.5 Hz indicates a motor running at nominal speed with 1% slip, while 50 Hz in Europe corresponds to a stationary motor).
A Hall effect sensor measures the current in one rotor phase, and a frequency meter extracts the frequency value of this current, transmitting it to another display in the form of a 4-20 mA signal.
My question is: Do you have any suggestions for a display unit that could be used in a dusty environment (e.g., a cement plant) and instantly display the data?
Thank you!
