8-26 Breaker/Recloser Monitor, Battery System Monitor, Date Code 990215
Metering, and Load Profile Functions
SEL-351P Manual Técnico
the new active setting group. Demand current pickup settings PDEMP, NDEMP,
GDEMP, and QDEMP can be changed without affecting the demand meters.
The examples in this section discuss demand current, but MW and MVAR demand
values are also available, as stated at the beginning of this subsection.
The demand current pickup settings in
Table SECTION 8: .5 are applied to demand current
meter outputs as shown in
Figure SECTION 8: .11. For example, when residual ground demand
current I
G(DEM)
goes above corresponding demand pickup GDEMP, Relay Word bit GDEM
asserts to logical 1. Use these demand current logic outputs (PDEM, NDEM, GDEM, and
QDEM) to alarm for high loading or unbalance conditions. Use in other schemes such as the
following example.
Figure SECTION 8: .11: Demand Current Logic Outputs
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