Operating curve type Supported by
PHLPTOC PHHPTOC
(11) IEC Inverse x
(12) IEC Extremely Inverse x x
(13) IEC Short Time Inverse x
(14) IEC Long Time Inverse x
(15) IEC Definite Time x x
(17) User programmable x x
(18) RI type x
(19) RD type x
PHIPTOC supports only definite time characteristic.
For a detailed description of timers, see the General function block
features section in this manual.
Table 152: Reset time characteristics supported by different stages
Reset curve type
Supported by
PHLPTOC PHHPTOC Note
(1) Immediate x x Available for all
operate time curves
(2) Def time reset x x Available for all
operate time curves
(3) Inverse reset x x Available only for ANSI
and user
programmable curves
The Type of reset curve setting does not apply to PHIPTOC or
when the DT operation is selected. The reset is purely defined by
the Reset delay time setting.
4.1.1.7 Application
PHxPTOC is used in several applications in the power system. The applications
include but are not limited to:
Section 4 1YHT530004D05 D
Protection functions
144 615 series
Technical Manual
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