unknown forward backward operate-once operate-many fundamental rms absolute unknown critical major minor warning pulse persistent not-supported bay-control station-control remote-control automatic-bay automatic-station automatic-remote maintenance process normal high low high-high low-low V A other Va Vb Vc Aa Ab Ac Vab Vbc Vca Vother Aother A B C ANSI Extremly Inverse ANSI Very Inverse ANSI Normal Inverse ANSI Moderate Inverse ANSI Definite Time Long-Time Extremely Inverse Long-Time Very Inverse Long-Time Inverse IEC Normal Inverse IEC Very Inverse IEC Inverse IEC Extremely Inverse IEC Short-Time Inverse IEC Long-Time Inverse IEC Definite Time Reserved zero one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen Fixed Ramp Average SI Units Currency per SI Units SI Units per currency Low medium high hly dly wly mly dly wly mly yly manual off Acknowledged Warning Active on blocked test test/blocked off status-only direct-with-normal-security sbo-with-normal-security direct-with-enhanced-security sbo-with-enhanced-security on blocked test test/blocked off rad sr m Gy q °C Sv F C S H V kg ohm J N Hz Ix Lm Wb T W Pa s m² m³ m/s m/s² m³/s m/m³ M kg/m³ m²/s A W/m K J/K ppm 1/s rad/s K VA Watts VAr theta cos(theta) Vs V² As A² mol A²t VAh Wh VArh V/Hz cd deg unknown forward backward both none m kg s A K mol cd deg rad sr Gy q °C Sv F C S H V ohm J N Hz lx Lm Wb T W Pa m² m³ m/s m/s² m³/s m/m³ M kg/m³ m²/s W/m K J/K ppm 1/s rad/s VA Watts VAr theta Cos (theta) Vs V² As A² A²t VAh Wh VArh V/Hz y z a f p n µ m c d da h k M G T P E Z Y pos-neg-zero dir-quad-zero