GE Industrial Solutions WavePro Low-Voltage Power Circuit Breakers - Manual (Page 31)

MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units
Chapter 3. Metering Mode
23
Current
The initial metering display is phase 1 line current, as
illustrated in Figure 42. Press
VALUE to cycle among the
three phases. Current is displayed from 0 to 999 amperes
and from 1.00 to a maximum of 999 kA. For current values
less than 5% of the current sensor rating, the displayed
value is zero.
Figure 42. Trip Unit display for current metering.
Voltage
The voltage displayed by this function depends on how the
Trip Unit was configured during Setup. If the breaker was
configured with phase-to-neutral connections, the display
shows individual phase voltages, as in Figure 43. If the
breaker was configured with phase-to-phase connections,
the display shows voltages between the phases, as in Figure
44. Press VALUE to cycle through the three phase voltages.
Figure 43. Trip Unit display for line-to-neutral voltages.
Figure 44. Trip Unit display for line-to-line voltages.
Energy
This display, illustrated in Figure 45, shows the aggregate
energy flow through the breaker. The value is displayed
from 0 to 999 kWh, then automatically switches units to
display 1.00 to 999 MWh, and then again to display 1.00 to
999 GWh. When 999 GWh is exceeded, the display
switches back to 0 kWh. The largest negative energy value
displayed is
− 99 GWh.
Accumulated energy is stored in nonvolatile memory. The
value in the display can be reset through the Trip Unit
keypad. To reset the energy value, hold down the
VALUE
key and press the SELECT key. The displayed energy value
will reset to zero.
Figure 45. Trip Unit display for aggregate energy.
Total Real Power
The value displayed for total real power, illustrated in Fig-
ure 46, represents the aggregate real power in watts flow-
ing through all three phases. The value is displayed from 0
to 999 kW, then automatically switches units to display 1.00
to 999 MW.
Figure 46. Trip Unit display for aggregate real power.
Total Apparent Power
The value displayed for total apparent power, as illustrated
in Figure 47, represents the aggregate total apparent
power in volt-amperes flowing through all three phases.
The value is displayed from 0 to 999 kVA, then
automatically switches units to display 1.00 to 999 MVA.
Figure 47. Trip Unit display for aggregate apparent power.