5.7.3 Functionality
The uncorresponding position startup function UPSCBR detects circuit breaker
openings in an unknown situation. An unexpected breaker opening can be caused
by, for example, internal mechanical malfunction.
UPSCBR can be used independently. The function output is activated when
detecting a circuit breaker opening in an unknown situation.
In most cases, the function module is used together with the AR function module.
The operate output signal can be one of the startup signals of the AR function.
5.7.4 Operation principle
The function can be enabled and disabled with the Operation setting. The
corresponding parameter values are "On" and "Off".
The operation of the uncorresponding position startup function can be described
using a module diagram. All the modules in the diagram are explained in the next
sections.
Signal power
supply check
CB_OPEN_CMD
CB_POSOPEN
CB_POSCLOSE
SI_PWR_ON
OPERATE
Protection
activation
check
Operate logic
GUID-2BEA9587-68B3-4B76-BAA5-D53DAA8A0D97 V2 EN
Figure 302: Functional module diagram
Signal power supply check
This module is used for signal power supply supervision. The activation of the
SI_PWR_ON input enables the Operate logic module after the value of the CB
power on delay time setting has elapsed.
Protection activation check
The main purpose of the module is to disable the Operate logic module when the
CB open command has been deployed by another function, for example, a
protection or control function. The activation of the CB_OPEN_CMD input disables
the Operate logic module immediately. The duration of the disabling time can be
set with the CB open hold delay setting.
1YHT530004D05 D Section 5
Protection related functions
615 series 567
Technical Manual
To Next Page
Loading...
Need help?
General
