Liquid Crystal Display; Microversatrip Plus And Microversatrip Pm Accuracies; Protective Relay And Metering Accuracies And Resolutions - GE MicroVersaTrip Plus Series User Manual

Liquid Crystal Display

Figure 7 illustrates the LCD with all segments illumi­
nated. The various segments are energized in
response to conditions sensed by the Trip Unit.
1-8 MicroVersaTrip Plus and
Micro Versa Trip PM Accuracies
The accuracy data in Table 7 represent the average
expected performance of MicroVersaTrip Plus and
MicroVersaTrip PM Trip Units. These data are valid
for setup, metering, and status mode displays. These
data include the effects of Trip Unit ambient­
temperature variation from 0° C to 70° C.
All percentages are based on full-scale values. Full­
scale current is the rating of the breaker's rating
xln,
plug. Full-scale voltage is the potential transformer
primary voltage rating. These data do not include
the accuracy rating of any measuring instrument.
Refer to the trip-time curves listed in Table 8 for
characteristics and accuracies of overcurrent protec­
tion.
�
LT ST INST G F OPS OK DEM AND UVR I
11V 111 V< V > Pi
D C2J -{[]}- rB
Value
Current (A, kA)
Voltage (V)
Energy (kWh,
Real power (kW, MW)
Total power (kVA, MVA)
Frequency (Hz)
Time delay (sec)
Table
Power Break®
Power Break® II
Table
VOLTS
AMPS k A S
kVA MVA
kWh MWh G/Vh xCT
12T
K
Ph-Ph
CO S 0 PICKUP
Figure 7. Liquid crystal display segments.
9
MWh, GWh)
7. Protective relay and metering accuracies and
resolutions.
Trip-Time
Breaker Type
Curves
AKR GES-991 0
GES-9909
and R-Frame
GES-9989
8. Trip-time curves for breaker ty pes covered in this
guide.
01 C/f2 (/13
Hz
kW MW
ADDRESS
Ph-N FAULT
DELAY
1. Introduction
Full-Scale
Accuracy Resolution
± 0.5 digit
±2%
± 0.5 digit
± 1 .5%
±3.5% ± 0.5 digit
±3.5% ± 0.5 digit
±3.5% ±0.5 digit
±1 Hz ±1 Hz
± 1 sec ± 1 sec
Ground-
Fault Curves
GES-991 1
GES-991 1
GES-9990
N SETUP
STATUS
METER
xiT
xln
I
i
)
!