GE Multilin W650, Instruction Manual

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5-82 W650 Wind Generator Protection System GEK-113032A
5.5 CONTROL ELEMENTS 5 SETTINGS
5
5.5.4.6 LOGIC FOR BLOCKING PROTECTION FUNCTIONS DURING THE RECLOSING CYCLE
The W650 autoreclose generates a series of internal signals that allow performing block logics for Protection elements
during the reclosing cycle. These signals are blocks after autoreclose shots (
BLK AFTER SHOT ). For example, if the user
wants to block a protection element during the complete reclosing cycle, it is necessary to configure a signal as an OR of
the four blocking signals provided after each reclosing cycle in the logic configuration tool
Setpoint > Logic Configuration ,
and then use it to block the desired protection elements at Setpoint > Relay Configuration > Protection Elements .
Figure 5–18:shows an example of the logic configuration for the block signal during the reclosing cycle.
Figure 5–18: BLOCK SIGNAL DURING THE RECLOSING CYCLE
Figure 5–19: shows an example of the autoreclose initiation and protection element block signals after the different trips.
The autoreclose initiate signal is configured to the relay general trip that corresponds to virtual output 83 configured in the
logic configuration tool, and a physical contact to generate an external autoreclose initiation.
In the example shown on the figure, the 50PH element block signal is configured as a combination of block by digital input,
block by non-trip permission of the directional element, and finally the element will remain blocked during the reclosing
cycle. This means that only the first trip can be executed by the phase instantaneous overcurrent element; after the first
reclose trip, the element will remain blocked until the end of the cycle.
Figure 5–19: CONFIGURATION EXAMPLE OF THE RECLOSE INITIATION AND BLOCK SIGNALS