The bottom of the screen has common buttons.
File:
This selection will take the user to the File
Manager.
Pre-set Test Menu:
This selection will return the controller to the
Pre-set Test Menu Screen.
Main Menu:
This selection will return the controller to the
Main Menu:
3.8.4.1 Differential Relay Setting Screen
Figure 50 Differential Relay Setting Screen
The Differential setting screen requires some values to be entered or verified before performing
the test. The factory defaults may be used to test a relay generically.
The following is a description of the buttons of the Relay Settings screen:
Winding # Tap
The user enters the tap value for each of the relay windings. Default
value
is
5.0
Amperes.
Min. Pickup % Tap
The user enters the relay minimum percentage of tap where the relay will
operate. Default 30 %. Therefore, with a tap value of 5 amperes, the
minimum pickup value for the relay on any tap would be 1.5 Amperes
(30% of tap).
% Harmonic
The user enters the % of harmonic restraint the relay is set to. The
default
value
is
20
%.
71
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