4-26
Protection and Control
BE1-951
TD=9.9
TD=6
TD=4
TD=2
TD=1
TD=0.5
TD=0.2
TD=0.1
D2871-24
08-02-00
Figure 4-14. Trip Time For Various Time Dials and Multiples of Pickup
BESTlogic Settings for the Volts Per Hertz Overexcitation Element
Logic settings for the 24 function are made using the SL-24 (settings logic-Volts Per Hertz) command. The
settings of this command determine whether the element is enabled or disabled. The SL command also
provides blocking control as determined by the logic expression assigned to the BLK input. Table 4-17 lists
the volts per hertz logic settings.
Table 4-17. Volts Per Hertz Logic Settings
Function
Range/Purpose
Default
mode
0=Disable
1=enable
0
BLK logic
Logic expression that disables the
function when true
0
SL-24 Command
Purpose:
Read or set logic for the Sync-Check element
Syntax:
SL-24[=<mode>,<BLK logic>]
Comments:
Refer to Table 4-17 for settings definitions
