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4.3.2.3.7 Alarm Θ
Just like Trip Θ, it represents a warming limit in percentage; however, it is used to warn the
user or the facility instead of the breaker tripping. The function value can be set in the range
of 50% - 200% as long as it is under Trip Θ value.
Thermal Alarm warning can be monitored in two ways.
d alerts the user.
The use of LEDs and the Alarm menu will be described in detail in the following sections.
When the A
status is monitored remotely and the user is informed.
4.3.2.3.8 Initial Θ
X is used to set the load as a percentage of the device to a specific initial value. Thus, it is
aimed that the protection works more effectively when the ambient temperature is high. A
value of 0 can be entered to make it passive.
4.3.2.4 67P – Directional Phase Overcurent Protection
Earth overcurrent protection settings are located under this sections:
Menu> Protection Settings> Current Protection Settings> Directional Phase Overcurrent
Protection Directional phase overcurrent protection; The current value is activated when the
current exceeds the set current limit and the direction condition is provided.
Directional Phase Overcurent Protections are indicated with I>I>>I>>> in IEC
60617 Standards, with DPHI_PIOC_1, DPHI_PIOC_2, DPHI_PIOC_3 in IEC 61850; with
67P-I-1, 67P-I-2, 67P-I-3 in IEEE / ANSI Standards.
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