Basler Electric BE1-50/51B-230 - Manual (Page 15)

9252000894 Rev H BE1-50/51B-230/-234/-239 General Information 1-5
Figure 1-4
BE1-50/51B-234 Burden
illustrates the current sensing input burden characteristic.
At 0.1 Aac .................................. 57.0 Ω
At 1.0 Aac .................................. 6.9 Ω
Figure 1-4. Current Sensing Input Burden (BE1-50/51B-234)
Frequency Response
A change of ±5 Hz from the nominal 50/60 Hz current causes <0.5% change in the current required for
pickup.
Transient Response
<10% overreach with system time constants up to 40 ms.
Harmonic Rejection
Rejection of odd and even harmonics is illustrated in Figure 1-5.
BE1-50/51B-234 CT Burden
0
10
20
30
40
50
60
70
80
90
0 1 2 3 4 5 6 7 8
Input Current (Amps)
B
ur
de
n i
n V
A
(r
m
s)