General Information
1-4
Timing Accuracy
(51V Functions)
Within ±5% or 50 mSec, whichever is greater for time dial settings of D
greater than 0.1 and multiples of 2 to 40* times the pickup setting but not
over 30 A for 5 A CT units or 6 A for 1 A CT units.
* 3-40 times pickup for the A-curve.
Voltage Restraint:
Voltage restraint compares the sensed voltage with the nominal voltage
level. A decrease of the sensed voltage (between 100% and 25% of
nominal) results in a proportional decrease of the time overcurrent pickup
point. When the sensed voltage falls below 25% of nominal, the time
overcurrent pickup point will be 25% of the actual time overcurrent setting
(see Figure 1).
25%
0%
50%
100%
75%
25%
100%
50%
75%
Sensed Voltage
Percent of Pickup Setting
D2224-21.vsd
01-31-00
Figure 1-1. Voltage Restraint
Power Supply:
Power input (battery)
12 Vdc nominal systems (8 to 16 Vdc)
24 Vdc nominal systems (16 to 32 Vdc)
Power dissipated is 6.5 watts
Inputs:
Voltage Sensing Inputs
100 to 480 Vac nominal, 50 to 60 hertz, @ less than 1 VA per phase
1.2 times nominal continuously
1.5 times nominal for 10 seconds
May be: single-phase; three-phase, three wire; or three-phase, four
wire
Current Sensing Inputs
1 or 5 ampere input @ 1 VA per phase
2 times nominal continuously
10 times nominal for 1 second
Содержание BE3-GPR
Страница 15: ...General Information 1 8 ...
Страница 16: ...General Information 1 9 Figure 1 2 Time Characteristic Curve S1 Short Inverse 99 1369 Similar to ABB CO 2 ...
Страница 17: ...General Information 1 10 Figure 1 3 Time Characteristic Curve S2 Short Inverse 99 1595 Similar To GE IAC 55 ...
Страница 18: ...General Information 1 11 Figure 1 4 Time Characteristic Curve L1 Long Inverse 99 1369 Similar to ABB CO 5 ...
Страница 19: ...General Information 1 12 ...
Страница 20: ...General Information 1 13 Figure 1 5 Time Characteristic Curve L2 Long Inverse 99 1594 Similar To GE IAC 66 ...
Страница 21: ...General Information 1 14 Figure 1 6 Time Characteristic Curve D Definite Time 99 1371 Similar To ABB CO 6 ...
Страница 22: ...General Information 1 15 Figure 1 7 Time Characteristic Curve M Moderately Inverse 99 1372 Similar to ABB CO 7 ...
Страница 23: ...General Information 1 16 Figure 1 8 Time Characteristic Curve I1 Inverse Time 99 1373 Similar to ABB CO 8 ...
Страница 24: ...General Information 1 17 Figure 1 9 Time Characteristic Curve I2 Inverse Time 99 1597 Similar to GE IAC 51 ...
Страница 25: ...General Information 1 18 Figure 1 10 Time Characteristic Curve V1 Very Inverse 99 1374 Similar to ABB CO 9 ...
Страница 26: ...General Information 1 19 Figure 1 11 Time Characteristic Curve V2 Very Inverse 99 1596 Similar to GE IAC 53 ...
Страница 29: ...General Information 1 22 Figure 1 14 Time Characteristic Curve A Standard Inverse 99 1621 ...
Страница 30: ...General Information 1 23 Figure 1 15 Time Characteristic Curve B Very Inverse 99 1376 ...
Страница 31: ...General Information 1 24 Figure 1 16 Time Characteristic Curve C Extremely Inverse 99 1377 ...
Страница 32: ...General Information 1 25 Figure 1 17 Time Characteristic Curve G Long Time Inverse 99 1622 ...
Страница 42: ...Functional Description 3 7 Figure 3 3 Selection Menu Sheet 1 of 6 ...
Страница 43: ...Functional Description 3 8 Figure 3 4 Selection Menu Sheet 2 of 6 ...
Страница 44: ...Functional Description 3 9 Figure 3 5 Selection Menu Sheet 3 of 6 ...
Страница 45: ...Functional Description 3 10 Figure 3 6 Selection Menu Sheet 4 of 6 ...
Страница 46: ...Functional Description 3 11 Figure 3 7 Selection Menu Sheet 5 of 6 ...
Страница 47: ...Functional Description 3 12 Figure 3 8 Selection Menu Sheet 6 of 6 ...
