9252000892 Rev A
BE1-50/51B-229 Controls and Indicators
2-3
P
0
0
53-5
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SW3
Figure 2-2. Circuit Board Controls
Table 2-2. Circuit Board Control Descriptions
Control Description
SW3
SW3-1 selects the system operating frequency. Placing SW3-1 in the off
(open) position selects 60 Hz operation. Placing SW3-1 in the on (closed)
position selects 50 Hz operation.
SW3-2 provides additional time delay for the instantaneous element. Placing
SW3-2 in the on (closed) position adds 100 milliseconds to the instantane-
ous time delay.
SW3-3 selects either GE IAC type curves (see Table 1-4)or ABB type curves
(see Tables 1-3 and 1-4). Placing SW3-3 in the on (closed) position selects
GE IAC type curves. Placing SW3-3 in the off (open) position selects ABB
type curves.
SW3-4 selects either instantaneous or integrating reset characteristics.
Placing SW3-4 in the on (closed) position selects integrating reset character-
istics. Placing SW3-4 in the off (open) position selects instantaneous reset
characteristics.
Содержание BE1-50/51B-229
Страница 1: ...INSTRUCTION MANUAL FOR OVERCURRENT RELAY BE1 50 51B 229 Publication 9252000892 Revision A 03 08 ...
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Страница 45: ...9252000892 Rev A BE1 50 51B 229 Time Characteristic Curves A 3 Figure A 3 D Definite Time Similar to ABB CO 6 ...
Страница 50: ...A 8 BE1 50 51B 229 Time Characteristic Curves 9252000892 Rev A Figure A 8 BS142 B Very Inverse ...
Страница 51: ...9252000892 Rev A BE1 50 51B 229 Time Characteristic Curves A 9 Figure A 9 BS142 C Extremely Inverse ...