Vanguard VCBA S2 (DigiTMR S2, DigiTMR S2 PC, CT-6500 S2, CT-7000 S2, CT-7500 S2, CT-8000) - Manual (Page 63)

REV 3 VCBA S2 VERSION 4.xx SOFTWARE MANUAL
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NOTES
• Manual Stroke allows the user to define a scaling factor for the velocity
calculation. If the stroke is measured as 5 inches by the travel transducer,
using a manual stroke of 10 inches will scale the velocity calculations as a 2-to-
1 ratio.
• V = C / Time(AP1 to AP2): Velocity is calculated by a user-defined constant
divided by the time (in milliseconds) between analysis point #1 and analysis
point #2.
• V = C * Dist(AP1 to AP2) / Stroke: Velocity is calculated by a user-defined
constant multiplied by the distance between analysis point #1 to analysis point
#2, then divided by the breaker’s stroke. This formula is often used to calculate
velocity in the new Siemens SPS or TPC breakers.
• V = C / Delta T: Velocity calculation is defined by constant C divided by a
constant Delta T.
• Disabled: No formula is used.