80
Trip
The Trip output becomes true if an overvoltage pickup condition persists for the duration of the element
Time Delay setting or calculated inverse time. In BESTlogicPlus, the Trip output can be connected to
other logic elements and to a physical relay output to annunciate the condition and to initiate corrective
action. If a target is enabled for the element, the BE1-11g will record a target when the Trip output
becomes true. See the Fault Reporting chapter for more information about target reporting.
Element Blocking
Fuse Loss
The fuse loss (60FL) element of the BE1-11g can be used to block 59X protection when fuse loss or loss
of potential is detected in a three-phase system.
If the 60FL element trip logic is true and Block Phase/V1 is enabled, the 59X function will be blocked
when configured for V1 mode. If Block V2 is enabled, the 59X function will be blocked when configured
for V2 mode. If Block 3V0 is enabled, the 59X function will be blocked when configured for 3V0 mode.
See the Fuse Loss (60FL) chapter for more information on the 60FL function.
Protective elements blocked by 60FL should be set so that trip times are 60 milliseconds or greater to
assure proper coordination of blocking.
Block Logic Input
The Block input provides logic-supervision control of the element. When true, the Block input disables the
element by forcing the Trip and Pickup outputs to logic 0 and resetting the element timer. Connect the
element Block input to the desired logic in BESTlogicPlus. When the element is initially selected from the
Elements view, the default condition of the Block input is a logic 0.
Logic Connections
Auxiliary overvoltage element logic connections are made on the BESTlogicPlus screen in
BESTCOMSPlus. The auxiliary overvoltage element logic block is illustrated in Figure 54. Logic inputs
and outputs are summarized in Table 26.
Name
Logic Function
Block
Trip
Pickup
Operational Settings
Auxiliary overvoltage element operational settings are configured on the Overvoltage (59X) settings
screen (Figure 55) in BESTCOMSPlus. Setting ranges and defaults are summarized in Table 27.
Auxiliary Overvoltage (59X) Protection
Figure 54. Auxiliary Overvoltage Element Logic Block
Table 26. Logic Inputs and Outputs
Input
Disables the 59X function when true
Output
True when the 59X element is in a trip condition
Output
True when the 59X element is in a pickup condition
9424200994 Rev U
Purpose
BE1-11g
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