Basler BE1-67, Instruction Manual, Page: 17 / 73

BE1-67 General Information 1-11
Figure 1-10. Typical Instantaneous Response Time
Timing Characteristics
The relay includes a choice of characteristics. A two-character designation within the style number defines
the timing characteristic. (See Table 1-4.)
Table 1-4. Characteristic Curves and Switch Positions
Switch Position
For Z2 Option
Characteristic
Curve Characteristic Description
Drawing
Number
3 B1 Short Inverse 99-0932
1 B2 Long Inverse 99-0931
5 B3 Definite 99-0933
2 B4 Moderately Inverse 99-0930
4 B5 Inverse 99-0929
6 B6 Very Inverse 99-0928
7 B7 Extremely Inverse 99-0927
8 E2 Long Inverse (BS 142) 99-1093
9 E4 Inverse (1.3 Sec.) (BS 142) 99-1094
A E5 Inverse (2.9 Sec.) (BS 142) 99-1095
B E6 Very Inverse (BS 142) 99-1096
C, D, E, F E7 Extremely Inverse (BS 142) 99-1097
Time Delay Accuracy
The time delay of the time overcurrent element is within ±5 percent or 50 milliseconds (whichever is greater)
of the characteristic curves for any combination of TIME DIAL, TAP and TAP CAL settings at 25°C.
Instantaneous Overcurrent
Pickup Range
Continuously adjustable over the range of one to 40 times the pickup setting established for the time
overcurrent element.
Response Time