25
26
1
Press MENU key to select
inactive power (kWar)+voltage(V)+current(A)
2
Jaw shall be fixed to measured conduits in corresponding phase locations. That is, user
shall measure a certain phase of three-phase circuit so that jaw is on corresponding conduit.
3
Please refer to Figure 4, 5 & 6 of UT240 manual for wiring of three-phase four-wire system,
three-phase three-wire system or single-phase two-wire system.
4
As shown in Figure 9-1, please press SELECT key to select the
1st phase location of
1 for three-phase four-wire system of
load. It can display apparent power, voltage and current of phase
location
1.
7.2Inactive power(kWar)+Voltage(V)+Current(A)
Figure
As shown in Figure 9-2, please press
key to measure
total three-phase power. Current measured power of the 1st
phase location also shall be calculated and saved.
Figure
As shown in Figure 9-3, please press SELECT key to select
the 2nd phase location. It also can display active power, voltage
and current of phase location of
2.
Figure
As shown in Figure 9-4, please press
key to measure
total three-phase power. Current measured power of the 2nd
phase location also shall be calculated and saved.
Figure
As shown in Figure 9-5, please press SELECT key to select
the 3rd phase location. It also can display active power,voltage
and current of phase location of
3.
Figure
As shown in Figure 9-6, please press
key to measure
total three-phase power. Current measured power of the 3rd
phase location also shall be calculated and saved.
Figure
As shown in Figure 9-7, total three-phase active power
can be displayed by pressing SELECT key finally.
Figure
Measurement operation of the 1st and 2nd phase locations
is the same as that of three-phase four-wire system. As
shown in Figure 9-8, total three-phase inactive power can be
displayed by pressing SELECT key after tripping the 3rd
phase location of measurement.
Figure
5
The maximum measuring range is 600kWar for single-phase inactive power to display
OL
symbol if exceeding the range. The maximum range is 1,800KWar for total three-
phase active power. It also will display
OL
symbol if exceeding the range.
UT241/242/243 OPERATING MANUAL
UT241/242/243 OPERATING MANUAL
