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8 Configuring the Recorder
8-24 TESLA LITE User Manual D03283R01.10
8.9 Sequence Component Channels
Description
Sequence Component Channels calculates positive, negative, and zero se-
quence components in one step. The positive sequence component may also be
used as an input to a watts/vars or impedance function.
Input
Analog Input Channels or Summation Channels can be used as inputs to a Se-
quence Component Channel.
Calculation
The sequence component algorithm is applied to produce positive, negative
and zero sequence components.
Triggers
• Positive sequence high and low magnitude
• Positive sequence negative and positive rate of change
• Negative sequence high magnitude
• Zero sequence high magnitude
To prevent multiple triggers on threshold conditions, an hysteresis of 2% of
setting is applied to magnitude triggers.
Recording
High Speed : Positive, negative and zero sequence values at a rate of eight val-
ues per cycle (regardless of the system sample rate).
Low Speed : Positive, negative and zero sequence values at a rate of one value
per cycle.
Number of
Channels
6 Sequence Component Channels are available.
Types
Vseq, Iseq
Notes
The primary to secondary scale factor used by the Sequence Component Chan-
nel is the same as that of the selected Phase A channel.