4-2
BE1-50/51M Installation
9252000990 Rev N
BS142 EXTREMELY INVERSE
C
BS142 VERY INVERSE
B
F
FIXED TIME
E
EXTREMELY INVERSE
DEFINITE TIME
D
MODERATELY INVERSE
M
I
INVERSE
V
VERY INVERSE
LONG INVERSE
L
SHORT INVERSE
S
CURVE DEFINITIONS
OVERCURRENT
9
8
7
6
5
4
3
2
CT
AUX
GND
51
50
.850
5.950
7.000
4.000
6.875
5.625
6.250
.312
.315
.550
2.900
3.395
.500
(TYP)
(TYP)
.420
D1047-04
0
0
0
S
0
0
0
RESET
ACTIVE/PICKUP
PICKUP
(0.5 MIN. SET)
TIME DIAL
TENTHS
UNITS
+
+
TENTHS
UNITS
CURVE
+
UNITS
TENS
INST
TIME
PICKU
P
MANUAL TRIP
Trip Volt. Present
INST
Trip Volt. Present
TIM
E
MANUAL TRIP
R
Overcurrent
Relay
BE1-50/51B-XXX
B
a
sler
Figure 4-2. Outline Dimensions
Summary of Contents for BE1-50M
Page 1: ...INSTRUCTION MANUAL FOR OVERCURRENT RELAY BE1 50 51M Publication 9252000990 Revision N 03 08 ...
Page 2: ......
Page 8: ...vi BE1 50 51M Introduction 9252000990 Rev N This page intentionally left blank ...
Page 10: ...ii BE1 50 51M General Information 9252000990 Rev N This page intentionally left blank ...
Page 22: ...ii BE1 50 51M Controls and Indicators 9252000990 Rev N This page intentionally left blank ...
Page 28: ...ii BE1 50 51M Functional Description 9252000990 Rev N This page intentionally left blank ...
Page 32: ...ii BE1 50 51M Installation 9252000990 Rev N This page intentionally left blank ...
Page 37: ...9252000990 Rev N BE1 50 51M Installation 4 5 Figure 4 5 DC Control Connections ...
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Page 42: ...ii BE1 50 51M Testing 9252000990 Rev N This page intentionally left blank ...
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Page 52: ...ii BE1 50 51M Relay Differences 9252000990 Rev N This page intentionally left blank ...
Page 56: ...6 4 BE1 50 51M Relay Differences 9252000990 Rev N This page intentionally left blank ...
Page 58: ...ii BE1 50 51M Time Characteristic Curves 9252000990 Rev N This page intentionally left blank ...