If the current amplitude falls below one percent of the nominal current, the
direction enters the non-directional area.
RCA
Non-operating area
3% nominal
amplitude
Max forward angle
Min forward angle
Min reverse angle
Max reverse angle
70 deg
80 deg
70 deg
80 deg
Forward
area
Backward
area
1% nominal
amplitude
IG
-VG
GUID-2F0D9869-85AD-400A-97EC-8295D06D4F9E V1 EN
Figure 163:
Operating characteristic for phase angle classic 80
2
3
4
5
6
7
8
9
10
/ % of
0
90
45
30
15
75
60
-90
-45 -30 -15
-75 -60
Min forward angle
1
80 deg
70 deg
Forward
area
Non-
operating
area
3% of
1% of
0
I
n
I
n
I
n
I
GUID-49D23ADF-4DA0-4F7A-8020-757F32928E60-ANSI V1 EN
Figure 164:
Phase angle classic 80 amplitude
1MAC059074-MB A
Section 4
Protection functions
615 series ANSI
347
Technical Manual
Summary of Contents for Relion 615 series
Page 1: ... RELION PROTECTION AND CONTROL 615 series ANSI Technical Manual ...
Page 2: ......
Page 39: ...Section 17 Glossary 1181 Table of contents 615 series ANSI 33 Technical Manual ...
Page 40: ...34 ...
Page 64: ...58 ...
Page 216: ...210 ...
Page 884: ...878 ...
Page 1038: ...1032 ...
Page 1136: ...1130 ...
Page 1172: ...1166 ...
Page 1180: ...1174 ...
Page 1186: ...1180 ...
Page 1192: ...1186 ...
Page 1193: ...1187 ...
Page 1194: ......
Page 1195: ......