The WWH-3 and VVH-3 combine power and energy transducers in one compact housing.
The WWH-3 incorporates a watt transducer providing a linear process current output with watt-hour measurement with output of either dry-contact Reed relay or optoisolator, the VVH-3 provides the same for the imaginary power.
The transducers provide instantaneous Watt/Var current loop output extracted from the voltage and current inputs, and Watt- hour or Var-hour pulse outputs for energy accumulation
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The WWH-3 and the VVH-3 can be calibrated to wide input ranges and to a large scale of pulse rates, reflecting the required energy resolutions.
Advanced circuitry design make the WWH-3 and the VVH-3 top grade instruments, offering true 0.1% accuracy in power and energy outputs.
The transducers family are available as single-phase or 3-phase units. They can be ordered with a dry contact Reed relay output, having a maximum rate of 720 pulse/hour, or with an optically isolated open-collector NPN transistor, obtaining a maximum rate of 95,000 pulse per hour enabling very high resolution measuring for energy sensitive production procedures.
The WWH-3 and the VVH-3 transducers are housed in a polycarbonate plastic enclosure, mounted on a standard DIN rail
