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Relay of minimum and maximum frequency

Relay of minimum and maximum frequency


The electronic relay of microprocessor frequency constantly checks the number of present periods in a line (net or generator) and it signals the overcoming or the lowering of the planned value, through the excitement of finals relay.


This device employee normally comes in the controls of overspeed of the generator groups, without having to add any other optional device to the group; this allows a notable economic saving. Other possible applications, in all the cases in which the frequency must be checked in an electric system.


SUPPLY: Vdc 12/24 or Vac 220/380
Signaling of MINIMUM and MAXIMUM FREQUENCY ALARM, with optic indications of frequency control.


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