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What are frequency transducers ? Where are they used ?

Frequency transducers are devices which generate an analog signal in accordance with the frequency to be measured. They are used in power systems and in electric equipment such as motors and generators to monitor the system frequency.

The output of the frequency transducer is usually connected to an automation device such as the PLC (Programmable Logic Controller) or a Distributed Control System (DCS).

Normal Power frequency transducers have a range between 0 and 100 or 120 Hz. Frequency transducers usually have analog outputs such as 4..20 mA, 0..20 mA and so on.

The output of these transducers can be configured. Modern transducers have three way isolation.