64
and then follow the steps shown in Figure 6-14. Connection method for drive test. The test waveforms of each key
device are shown in Table 6-14.
Fig.6-14 The connection of drive test circuit of 20kVA IP/OP board
Table 6-14 The driver test description of 20kVA IP/OP board
Component and its tag number
Waveform
Remark
Charger IGBT
Q23,Q24
High level
+15V±1V
;
Low level
-8V±1V
;
Frequency
40KHz
;
If it is found that the individual IGBT drive wareform is abnormal during the drive test, please re-check
whether the device is replaced, and check whether the corresponding drive module is damaged.
6.2.4 Maintenance of 30kVA IP/OP board
30kVA IP/OP board mainly includes auxiliary power supply, charger, input filter and output filter. Among
them, the fragile components are shown in Table 6-15, and the position of the board is shown in Fig 6-15.
Table 6-15 The frogile components of 30kVA IP/OP board
Components
Tag Number
Specifications
Alternative
specification
Input/Output Fuse
F4,F5,F6,F25,F26,F27
100A/690V
Battery Fuse
F13,F14
10A/250V
Charger Fuse
Q19,Q20
IKW40N65H5
JT050N065WED
Charger IGBT
D9,D10,D6,D7
RHRP3060
MM30FU60K
Содержание EA990G5
Страница 4: ...7 1 Boards installation 72 7 2 Preparation before power on 72 7 3 Power on and testing 72...
Страница 9: ...5 Fig 2 5 The rear pannel of 30kVA UPS Tower Fig 2 6 The rear pannel of 10kVA 15kVA 20kVA UPS Rack...
Страница 43: ...39 Fig 5 9 The left side board of 15kVA standard model Tower Fig 5 10 The board of 15kVA model Rack...
Страница 48: ...44 Fig 5 19 The left side board of 30kVA standard model Tower...