Curve name Supported by
DPH3LPDOC DPH3HPDOC
(6) Long Time Extremely
Inverse
x
(7) Long Time Very Inverse x
(8) Long Time Inverse x
(9) IEC Normal Inverse x x
(10) IEC Very Inverse x x
(11) IEC Inverse x
(12) IEC Extremely Inverse x x
(13) IEC Short Time Inverse x
(14) IEC Long Time Inverse x
(17) Programmable x x
:
A detailed description of the timers can be found in the General
function block features section in this manual.
Reset curve type Supported by Note
DPH3LPDOC DPH3HPDOC
(1) Immediate x x Available for all
operating time curves
(2) Def time reset x x Available for all
operating time curves
(3) Inverse reset x x Available only for ANSI
and programmable
curves
4.1.4.6 Directional overcurrent characteristics
The forward and reverse sectors are defined separately. The forward operation area
is limited with the Min forward angle and Max forward angle settings. The reverse
operation area is limited with the Min reverse angle and Max reverse angle settings.
The sector limits are always given as positive degree values.
In the forward operation area, the Max forward angle setting gives the
counterclockwise sector and the Min forward angle setting gives the corresponding
clockwise sector, measured from the Characteristic angle setting.
In the backward operation area, the Max reverse angle setting gives the
counterclockwise sector and the Min reverse angle setting gives the corresponding
1YHT530004D05 D Section 4
Protection functions
615 series 209
Technical Manual
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