No
n-o
pe
rati
ng
are
a
Min reverse angle
Min operate
current
Max forward angle
Max reverse angle
Characteristic angle
= +60 deg
Min forward angle
maximum torque line
zero torque line
-
(polarizing quantity)
(operating quantity)
0
V
0
I
GUID-D72D678C-9C87-4830-BB85-FE00F5EA39C2-ANSI V1 EN
Figure 83:
Definition of the relay characteristic angle, RCA=+60 degrees in a solidly
grounded network
Example 3
The "Phase angle" mode is selected, isolated network (φRCA = -90 deg)
=>
Characteristic angle
= -90 deg
1MRS240050-IB C
Section 4
Protection functions
REF615R
179
Technical Manual
Summary of Contents for RELION REF615R
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