Logic of the Function
[lo_7SR5_37logicdiagram, 1, en_US]
Figure 5-6
Logic Diagram: 37 Undercurrent Protection – Phase
Application and Setting Notes
Parameter:
37 Common > UC Guard Setting
•
Default setting: 0.1 x I
n
(0.1 ⋅ I
rated
)
Current elements can be blocked if all phase currents fall below setting.
Parameter:
Element
•
Default setting:
Disabled
This setting is used to allow the element to be switched on and off if it is not required. A separate setting
is provided for each element. This setting can be used to select the number of elements required.
5.5.3
5.5.4
Protection and Automation Functions
5.5 37 Undercurrent Protection – Phase
172
Reyrolle 7SR5, Transformer Protection Device, Device Manual
C53000-G7040-C015-1, Edition 11.2019
Содержание Reyrolle 7SR5
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