Operating curve type Supported by
PH3LPTOC PH3HPTOC
(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
PH3IPTOC supports only definite time characteristic.
A detailed description of the timers can be found in the General
function block features section in this manual.
Table 174: Reset time characteristics supported by different stages
Reset curve type
Supported by
PH3LPTOC PH3HPTOC Note
(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 user
programmable curves
The Type of reset curve setting does not apply to PH3IPTOC or
when the DT operation is selected. The reset is purely defined by
the Reset delay time setting.
4.1.2.6 Application
PH3xPTOC is used in several applications in the power system. The applications
include different protections, for example.
Section 4 1YHT530004D05 D
Protection functions
164 615 series
Technical Manual
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