ABB IM300 Series, Руководство по эксплуатации

Страница: 21 / 109

IM300 Intelligent Power Monitoring Instrument
19
Screen 8 to screen 37: Display the 2~31th harmonic ratio
of 3-phase voltage in turn
“H-U” displayed at the left top corner of the screen denotes
harmonic voltage. The index is displayed at the bottom of the
screen.
When the connection mode is set as 3-phase 4-wire system,
3-phase voltage Ua, Ub, Uc of second harmonic ratio is shown in
fig 3.2.18:
HP_2_Ua
＝
0.4
％；
HP_2_Ub
＝
0.4
％；
HP_2_Uc
＝
0.4
％；
When the connection mode is set as 3-phase 3-wire
system,
3-phase line voltage Uab, Ubc, Uca of second
harmonic ratio is shown in fig 3.2.19:
HP_2_Uab
＝
0.4
％；
HP_2_Ubc
＝
0.4
％；
HP_2_Uca
＝
0.4
％；
Screen 38: Display the fundamental value of
3-phase current and zero-sequence current
“H-I” displayed at the left top corner of the screen denotes
harmonic voltage.The index is displayed at the bottom of the
screen, “01” denotes fundamental wave. Fundamental value of
3-phase current is shown in fig 3.2.20:
Ia_1
＝
5000A
；
Ib_1
＝
4999A
；
Ic_1
＝
5001A
；
In_1
＝
102A
；
Screen 39 to screen 68: Display the 2~31th harmonic
ratio of 3-phase current in turn
：
“H-I” displayed at the left top corner of the screen denotes
harmonic current. The index is displayed at the bottom of the
screen.
3-phase current Ia, Ib, Ic and zero-sequence current In of second
harmonic is shown in fig 3.2.21:
HP_2_Ia
＝
0.5
％；
HP_2_Ib
＝
0.5
％；
HP_2_Ic
＝
0.5
％；
HP_2_In
＝
0.5
％；
Fig 3.2.18 2th harmonic ratio of 3-phase
voltage
Fig3.2.19 2 the harmonic ratio of 3-phase line
voltage
Fig 3.2.20 Fundamental value of current
Fig 3.2.21 2th harmonic ratio of 3-phase
current