The torque calculator type LAC is a microprocessor- controlled device for measuring the torque on the shaft of an asynchronous machine.
Starting with a rated motor power of 0,55 kW, he can operate with every line- and inverteroperated three phase asynchronous machine.
The torque gets detected by measuring motor input current and voltage in conjunction with a field compensation transducer. Required operational parameters are transmission ratio and stator resistance. The torque measurement does not require a separation of the mechanical powertrain.