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8 Configuring the Recorder
8-40
TESLA LITE User Manual
D03283R01.10
8.15 Power Factor Functions
Description
Power Factor Functions monitor the real and reactive power values calculated
by a Watts/Vars Channel and trigger depending on total power level. Inductive
power factor is defined as a situation where the calculated reactive power is
positive. Capacitive power factor is defined as a situation where the reactive
power is negative.
Input
A previously-defined Watts/Vars Channel.
Calculation
The Power Factor Detector monitors the watts, vars, and volt-amps values
computed by its input channel and operates when the power factor is less than
a user-specified threshold. Separate detectors allow separate thresholds for lag-
ging (inductive) and leading (capacitive) power factors. To reduce the inci-
dence of nuisance operations, you may specify a minimum volt-amps setting.
Triggers
Inductive power factor – Low magnitude
Capacitive power factor – Low magnitude
To prevent multiple triggers on threshold conditions, the power factor triggers
have a fixed hysteresis of 0.05.
Recording
Power Factor Functions are not recorded.
Number of
Channels
5 Power Factor Functions are available.
Types
PF
Notes
Power factor readings are available to the metering display, SCADA and the
long term trending function.
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