MI 2892 Power Master
Operating the instrument
75
Returns to the “TRANSIENT RECORDER” setup screen.
3.16.3
Captured transients
Captured transient records can be viewed from the Memory list where captured waveforms can be
analysed. Trigger occurrence is marked with the blue line, while cursor position line is marked in black.
Figure 3.53: Captured transient recorder screen
Table 3.66: Instrument screen symbols and abbreviations
Memory list recall. Shown screen is recalled from memory
t:
Cursor position regarding to trigger time (blue line on graph)
u1(t), u2(t), u3(t), un(t)
Samples value of phase voltages U
1
, U
2
, U
3
, U
N
.
u12(t), u23(t), u31(t)
Samples value of phase to phase voltages U
12
, U
23
, U
31
.
i1(t), i2(t), i3(t), in(t)
Samples value of phase currents I
1
, I
2
, I
3
, I
N
.
Table 3.67: Keys in captured transient recorder screens
Selects between the following options:
U
I U,I U/I
Shows voltage waveform.
U
I
U,I U/I
Shows current waveform.
U I
U,I
U/I
Shows voltage and current waveforms (single mode).
U I U,I
U/I
Shows voltage and current waveforms (dual mode).
Selects between phase, neutral, all-phases and view:
1
2 3 N
Shows waveforms for phase L1.
1
2
3 N
Shows waveforms for phase L2.
1
2
3
N
Shows waveforms for phase L3.
1
2 3
N
Shows waveforms for neutral channel.
1
2 3 N
Shows waveforms for all phases.
12
23 31 Δ
Shows waveforms for phase to phase voltage L12.
12
23
31 Δ
Shows waveforms for phase to phase voltage L23.
12
23
31
Δ
Shows waveforms for phase to phase voltage L31.
12
23 31
Δ
Shows waveforms for all phase-to-phase voltages.
F2
F3
