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5.5.2
Function block
BST
RECV_SIG_2
RECV_SIG_1
RECV_SIG_3
RECV_SIG_4
RECV_SIG_7
RECV_SIG_5
RECV_SIG_6
RECV_SIG_8
SEND_SIG_A
RECV_SIG_A
SEND_SIG_1
SEND_SIG_2
SEND_SIG_3
SEND_SIG_4
SEND_SIG_5
SEND_SIG_6
SEND_SIG_7
SEND_SIG_8
GUID-203004E3-0DF3-4D30-979F-A0951F30B159 V1 EN
Figure 404:
Function block
5.5.3
Functionality
The binary signal transfer function BST is used for transferring binary signals between the
local and remote end line differential protection relays. The function includes eight binary
signals that are transferred in the protection communication telegram and can be freely
configured and used for any purpose in the line differential application.
BST transfers binary data continuously over the protection communication channel
between the terminals. Each of the eight signals are bidirectional and the binary data sent
locally is available remotely as a received signal.
BST includes a minimum pulse time functionality for the received binary signals. Each
received signal has its own minimum pulse time setting parameter.
The function includes two alarm output signals. The
SEND_SIG_A
output signal is
updated according to the status of the sent binary signals. The
RECV_SIG_A
output
signal is updated according to the status of the received binary signals. Each signal can be
separately included or excluded from the alarm logic with a setting parameter.
5.5.4
Operation principle
The
Signal 1...8 mode
setting can be used for changing the operation of the bidirectional
signal channel. The signal channel can be disabled by setting the corresponding parameter
value to “Not in use”. When the signal channel is disabled locally or remotely, the
corresponding
RECV_SIG_1...8
signal status is always false on both ends.
1MAC059074-MB A
Section 5
Protection related functions
615 series ANSI
795
Technical Manual
Содержание Relion 615 series
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