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Full-scale MW/MVAr engineering range for a Watt/VAr transducer, from its rated voltage and current input plus CT/VT ratios: (√3 × V × VT ratio × A × CT ratio) ÷ 1,000,000. Enter the ratios as primary ÷ secondary or as a direct ratio, and pick bipolar or unipolar output to get the range to configure at the RTU or historian.

local · offline-capable · nothing logged

CT/VT Scaling Calculator

CTVT Power transducer scaling

Full-scale MW/MVAr value for a Watt/VAr transducer, from its rated input and CT/VT ratios. Use the same figure for both the Watt and VAr output if they share the same CT/VT and rated input.

VT ratio
CT ratio
Output signal
VT ratio (used)100.00
CT ratio (used)200.00
Scaling factor19.053
Engineering range−19.053 to +19.053

Scaling factor = (√3 × V × VT ratio × A × CT ratio) ÷ 1,000,000.

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