ABB ACS880-07CLC, Hardware Manual

Page: 29 / 214

Supply connection detail – two D8D modules, 6-pulse connection, internal charging
Operation principle and hardware description 21
„
Overview diagram – 2×D8D, 6-pulse, internal charging
The diagram shows a supply unit with two D8D modules and internal charging in a 6-pulse
connection.
*
)
NOTE: Each module must have its own input AC cable with the minimum length of 5 meters. Use
symmetrical supply cabling to ensure equal current sharing between parallel diode bridges.
Cubicle No. Description Available through
A External installation
(outside supply
module cubicle) 1. Medium voltage/low voltage switchboard -
2. Supply transformer -
3. Charging switchgear including:
• Disconnecting device
-
4. Dedicated supply unit switchgear including:
• Disconnecting device
• Breaker/contactor
-
5. Overcurrent and short-circuit protection of
input cabling -
B Supply module
cubicle 6. AC fuses for protecting supply unit against
short circuit ABB or third party
7. Internal charging kit ABB
8. Diode supply modules ABB
9. DC link -
ACS880-304LC A019_2xD8D 6p internal charg overview diagr.pdf
Medium voltage / low voltage switchboard 1
External installation outside drive cabinet A
Supply transformer 2
Charging switchgear including: 3
• Disconnecting device
Dedicated supply switchgear including: 4
• Disconnecting device
• Breaker/contactor
Overcurrent and short-circuit protection of input cabling 5
Supply module cubicle of drive B
AC fuses for protecting supply unit against short circuit 6
Internal charging kit (F272) 7
Diode supply modules 8
DC link 9
*Each module must have its own input AC cable with a minimum length of 5 m (16.4 ft). Use symmetrical
supply cabling to ensure equal current sharing between parallel diode bridges.
Operation principle and hardware description 29