1-10
BE1-32R, -32 O/U GENERAL INFORMATION
SPECIFICATIONS
Current Sensing
BE1-32R and -32 O/U Directional Power Relays are designed for use with five
amperes nominal (50/60 HZ) system current transformer secondaries. The
input sensing current transformers within the relay are rated as follows:
1.) If sensing input range 1, 4, or 7 is selected, input current transformers are
capable of 7 amperes continuous current, 10 amperes for 1 minute and 140
amperes for 1 second.
2.) If sensing input range 2, 3, 5, 6, 8, or 9 is selected, input current trans-
formers are capable of 10 amperes continuous current, 15 amperes for 1
minute and 200 amperes for 1 second.
Refer to Table 1-2 for current sensing burden.
Table 1-2. Current Sensing Burden In Ohms
Sensing Input Range
1, 4, 7
2, 5, 8
3, 6, 9
Range
Low
High
Low
High
Low
High
Tap A
4.811
0.400
0.096
0.022
0.013
0.010
Tap B
2.466
0.240
0.058
0.019
0.012
0.010
Tap C
1.677
0.190
0.045
0.018
0.011
0.010
Tap D
1.277
0.165
0.039
0.018
0.011
0.010
Tap E
1.036
0.151
0.034
0.017
0.011
0.010
Tap F
0.874
0.142
0.032
0.017
0.011
0.010
Tap G
0.760
0.134
0.030
0.017
0.011
0.010
Tap H
0.674
0.129
0.029
0.017
0.011
0.010
Tap J
0.611
0.126
0.028
0.017
0.010
0.010
Tap K
0.556
0.123
0.027
0.017
0.010
0.010
Voltage Sensing
Voltage signals are provided by the secondaries of standard potential
transformers (100/200, 50 Hz or 120/240, 60 Hz) with less than 1 VA burden
per phase at nominal. Continuous voltage rating is limited to 150% of nominal.
Targets
Magnetically latching, manually reset target indicators are optionally available
to indicate that a trip output contact has been energized. Either internally
operated or current operated targets may be selected. Current operated
targets require a minimum of 0.2 ampere flowing through the output trip circuit,
and are rated at 30 amperes for 1 second, 7 amperes for 2 minutes, and 3
amperes continuously. Internally operated targets should be selected if the
relay has normally closed output contacts.
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