Basler BE1-50B, Instruction Manual

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1-8 BE1-50/51B-General Information
Refer to Tables 1-3 and 1-4 for the time characteristic curve constants.
Constants have been selected to conform to the characteristics of
electromechanical relays over a range of pickup multiples from 1.3 to
40. Values of the constants are available for use in computer relay
setting programs. Timing accuracy is the sum of ±1 cycle and ±2%.
The fixed time characteristic provides delays of 0.0 to 9.9 seconds
corresponding to the time dial setting. The time set is constant over a
range of pickup multiples from 1.0 to 40. Accuracy is ±2% ±1 cycle for
time dial settings of 0.1 and greater.
Table 1-3. Time Characteristic Curve Constants
( Series 100 Relays or Series 200 Relays With SW8-3 Open (OFF) )
Curve Type Figure Constants
BE1 Similar To Number A B C N K R
S ABB CO-2 1-6 0.2663 0.03393 1.000 1.2969 0.028 0.500
L ABB CO-5 1-7 5.6143 2.18592 1.000 1.000 0.028 15.750
D ABB CO-6 1-8 0.4797 0.21359 1.000 1.5625 0.028 0.875
M ABB CO-7 1-9 0.3022 0.12840 1.000 0.5000 0.028 1.750
I ABB CO-8 1-10 8.9341 0.17966 1.000 2.0938 0.028 9.000
V ABB CO-9 1-11 5.4678 0.10814 1.000 2.0469 0.028 5.500
E ABB CO-11 1-12 7.7624 0.02758 1.000 2.0938 0.028 7.750
B BS142-B* 1-13 1.4636 0.00000 1.000 1.0469 0.028 3.250
C BS142-C* 1-14 8.2506 0.00000 1.000 2.0469 0.028 8.000
F None** None 0.0000 1.00000 0.000 0.0000 0.000 1.000
Table 1-4. Time Characteristic Curve Constants ( 200 Series Relays With SW8-3 Closed (ON)
Curve Type Figure Constants
BE1 Similar To Number A B C N K R
S GE IAC 55 1-15 0.0286 0.0208 1.000 0.9844 0.028 0.0940
L GE IAC 66 1-16 2.3955 0.00000 1.000 0.3125 0.028 7.8001
D ABB CO-6 1-8 0.4797 0.21359 1.000 1.5625 0.028 0.8750
M ABB CO-7 1-9 0.3022 0.12840 1.000 0.5000 0.028 1.7500
I GE IAC 51 1-17 0.2747 0.1042 1.000 0.4375 0.028 0.8868
V GE IAC 53 1-18 4.4309 0.0991 1.000 1.9531 0.028 5.8231
E GE IAC 77 1-19 4.9883 0.0129 1.000 2.0469 0.028 4.7742
B BS142-B* 1-13 1.4636 0.00000 1.000 1.0469 0.028 3.2500
C BS142-C* 1-14 8.2506 0.00000 1.000 2.0469 0.028 8.0000
F None** None 0.0000 1.00000 0.000 0.0000 0.000 1.0000
* Curves B and C are defined in British Standard BS142 and IEC 255-4 (International
Electrotechnical Commission)
** Fixed time from 0.1 to 9.9 seconds.