4 20ma transducer scaling: PE Power Measurement and Instrumentation practice question
A 13.8 kV feeder in a plant substation has 1200:5 CTs. A current transducer on the CT secondary sends a 4–20 mA signal to the plant PLC. The transducer is linear and is scaled so that 4 mA corresponds to 0 A and 20 mA corresponds to 1500 A of primary feeder current. The PLC analog input currently reads 11.2 mA. The primary feeder current is most nearly: