The PAF or QAF transducer converts an active or
reactive power to proportional frequency output
( W or VAR) or to a pulse output ( Wh or VARh) , with
or without analogue output.
The main variants are :
• Remote metering of Wh+ and Wh- or VARh+
VARh- by relays ( model 2H) or transistors ( model
2T) at 25 to 36, 000 pulses/ h. The power provided
by the transistors is sufficient to supply one or two
electromechanical pulse counters or a PLC.
• Remote measurement of W+ and W- or VAR+
and VAR- by transistors ( model 2T) . Frequency
outputs: 0.01 Hz to 10, 000 Hz. refer to |
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