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Breaker Tab
Universal Relay - Breaker Tab
The Breaker tab supports the B30, C30, C60, D60, F30, F35, F60, G60, L60, L90,
M60 and T60 UR devices, and shows a variety amperage measurements and breaker
status, as well as allowing control of breaker functions and auto reclosers.
Arcing
Amperage at Breaker 1 and 2 is displayed for Phases A, B, and C. The Clear Current
Arcing functions allow current arcing conditions to be cleared.
Breaker Arcing Current features are available for Breakers 1 and 2. This element
calculates an estimate of the per-phase wear on the breaker contacts by measuring
and integrating the current squared passing through the breaker contacts as an arc.
These per-phase values are added to accumulated totals for each phase and compared
to a programmed threshold value. When the threshold is exceeded in any phase, the
relay can set an output operand to "1". The accumulated value for each phase can be
displayed as an actual value.
Breaker Functions
Breaker control can be enabled or disabled using these controls, and the Breaker
Arcing Amp function can be enabled or disabled for Breakers 1 and 2. These controls
will be disabled if the connected device does not support breaker control.
Breaker Status
Selecting a settings group changes the display of functions. Up to 8 settings groups
are available for display.