Logic of the Function
[lo_7SR5_60VTSlogicdiagram, 1, en_US]
Figure 6-6
Logic Diagram: 60VTS VT Supervision
Application and Setting Notes
Parameter: Gn 60VTS Element
•
Default setting: Disabled
This setting is used to allow the element to be switched on and off if it is not required. If the element is
disabled, the validity of the voltage supply will not be assessed and voltage dependent elements will
operate based on the measured voltage.
Parameter Value
Description
Disabled This element is off and is not available.
Enabled The element is available for use and can be parame-
terized.
Parameter: Gn 60VTS Component
•
Default setting: NPS
Selects the method used for the detection of loss of 1 or 2 VT phases i.e. ZPS or NPS components. The
sequence component voltage is derived from the line voltages; suitable VT connections must be avail-
able.
The element has user settings 60VTS V and 60VTS I. A VT is considered to have failed where the voltage
exceeds 60VTS V while the current is below 60VTS I.
6.3.3
6.3.4
Supervision Functions
6.3 60VTS VT Supervision
380 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019
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