GRUP ARGE SMART GES1, Instruction Manual

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Smart SVC Relay Instruction Manual
39
Figure 3.85
Second Zone Multiplier
It exists in all18-stage relays. It determines thyristor stage activation pace when contactor and
thyristor switched stages are used together.
EXAMPLE:
If second zone multiplier is 20, the activation pace of thyristor increases by 20
times compared to the contactor stage. So, if discharge time of contactor stage is 8 sec, it is
8/20= 400 msn in thyristor for stage.
Figure 3.86
DYN Value
It indicates the connection diagram of power transformer. This value is written on tag of the
transformer. DYN is the angle difference between the primary and the secondary voltage of
the transformer.
EXAMPLE: If DYN=11, the angle between the primary and the secondary voltage is
11x30=330 degrees.
Figure 3.87
Export Energy
It exists in all 18-stage relays. If you want to make a different compensation when the system
is energised, make export energy ‘on’.
Figure 3.88
In Expr Comp Off
It enables to deactivate compensation when the system is in export.
Figure 3.89
In Expr At Imprt
If a phase of the system is in import and the other phase is in export, it compensates the system
as if it is in import mode. If you make it ‘off’, this feature is closed.
Second Zone
Multiplier
Off
Export Energy
Off
In Export Comp Off
On
In Export at Import
On
DYN Value
11