Basler BE1-11g Instruction Manual page 180

Generator protection system
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168
Logic
Name
Function
Block
Input
Initiate
Input
Status
Output
Initiated
Output
Close
Output
Breaker
Volt Monitor
Output
Lower
Output
Frequency
Raise
Output
Frequency
Lower
Output
Voltage
Raise
Output
Voltage
Sync In
Output
Progress
Sync Fail
Output
Synchronizer (25A)
Figure 103. Synchronizer Element Logic Block
Table 63. Logic Inputs and Outputs
Disables the 25A function when true. A pulse will stop and reset the 25A
function. Also, resets the element after a sync fail.
A pulse true initiates the synchronization process. It does not have to be
maintained to continue synchronization. If it is maintained and a sync fail
occurs, the element will not be blocked, but continue with a new sync
cycle.
True when the synchronization criteria are met.
True when the 25A has been initiated.
Signals the breaker to close. True after the Status output becomes true.
True when the voltage monitor settings are met.
True when the 25A element is decreasing frequency.
True when the 25A element is raising frequency.
True when the 25A element is decreasing voltage.
True when the 25A element is increasing voltage.
True when the 25A has been initiated, and is not inhibited. The 25A is
inhibited when the generator or bus voltage is less than 10 V or 15 Hz.
A one-cycle pulse, true when the breaker is still open after maximum
close attempts.
9424200994 Rev U
Purpose
BE1-11g

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