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2
2.1
2.2
2.3
154
High speed binary output logic (HSBO)
High speed binary output logic (HSBO)
Application
The time taken for signals to be transferred from binary inputs to protection functions, and from
protection functions to binary outputs contributes to the overall tripping time. The main purpose
of the HSBO high speed binary output logic is to minimize overall tripping times by establishing
the critical connections to/from the binary outputs/inputs in a more direct way than with the reg-
ular I/O connections.
Functionality
The outputs from the HSBO logic utilize 'fast' connections to initiate binary outputs. The inputs
to the HSBO logic utilize the same 'fast' connections. Input connections to the logic are derived
from binary inputs, from outputs of the high speed distance protection, and from inputs to the
regular trip logic and scheme communication logic. The HSBO scheme communication logic
runs in parallel with the regular scheme communication logic.
The 'fast' connections to and from the HSBO logic comprise so called hard connections in soft-
ware. This configuration is made internally and cannot be altered. The only exceptions are the
connections to the binary outputs where limited configuration is possible, and required, on the
part of the user.
Function block
HSBO-
HSBO
BLKHSTR
ERROR
BLKHSCS
BLKZCTR
SETTINGS
IOMOD
TR1L1OUT
TR2L1OUT
TR1L2OUT
TR2L2OUT
TR1L3OUT
TR2L3OUT
CSL1OUT
CSL2OUT
CSL3OUT
CSMPHOUT
xx00000222.vsd
Chapter 10
Logic
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