The Var Transducers VAR95 are used to convert single or three phase unbalance load reactive power into a proportional load independent DC. output. Based fully electronic Time-Division Multiplication measuring principle, the reactive power of a network with any power factor range are linearly produced by Var Transducers output.
Calibration var of rated output
Connection |
V=110V |
V=220V |
V=380V |
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Single Phase |
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3phase,3wire |
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3phase,4wire |
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Note. V= Line voltage
Equation to calculated measuring range
Measuring range = Calibration var x PT ratio x CT ratio
Example 3phase,3wire, PT 220V/110V, CT 250/5A, Calibration var = 1000W
Measuring range = 1000 x (220/110) x (250/5) = 100 Kvar.