SCADA Transducer

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bejoyengineer

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In SCADA, the analog output value of a transducer for a tap changing indication gave me a fluctuated value at the output of the transducer. The more we increase the taps of the transformer.. the more the transducer output value fluctuates and thereby not displaying the actual value in SCADA. What is it that could be the reason and how can I solve this issue. The transducer calibration used is 0-21 tap positions = 0 -1 mA
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scada transducer

scada transducer

i ahve checked the mA's output of the transducer with a muiltimeter but did not show any fluctuation but when the RTU is connected to a laptop...it does show fluctuations in the laptop
 
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