W DOC AIRBUS | AMM A320F

AC MAIN DISTRIBUTION - DESCRIPTION AND OPERATION


** ON A/C NOT FOR ALL
1. General

The AC main distribution network corresponds to busbars 1XP and 2XP and their associated sub-busbars.
** ON A/C NOT FOR ALL
2. Component Location
FIN FUNCTIONAL
DESIGNATION
PANEL ZONE ACCESS
DOOR
ATA REF
** ON A/C ALL
12XN CNTOR-AC SVCE BUS NORM SPLY 120VU 212 24-51-55
15XN1 A/XFMR-115/26VAC, 1 120VU 212 24-51-51
15XN2 A/XFMR-115/26VAC, 2 120VU 212 24-51-51
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21XN1 CNTOR-115 VAC BUS 1 SPLY 120VU 212 24-51-00
21XN2 CNTOR-115 VAC BUS 2 SPLY 120VU 212 24-51-00
22XN P/BSW-ELEC/COMMERCIAL 35VU 210 24-51-00
** ON A/C ALL
27XN CONTACTOR 120VU 212 24-51-55
** ON A/C NOT FOR ALL
3. Operation/Control and Indicating
The main busbars can be supplied:
  • either by the corresponding generator,
  • or by the other main generator, or by the APU generator or the ground power unit by means of the transfer circuit.
The major part of the network is supplied with three-phase 115 VAC/400 Hz.
A 115/26 VAC single-phase autotransformer supplying a normal 26 VAC/400 Hz sub-busbar (131XP.A and 231XP.A) is connected to each main busbar.
Part of the AC main network (212XP, 214XP, 216XP.C) can be supplied directly by the ground power unit in ground service configuration (Ref. 24-42-00, P. Block 1). For each main busbar, a warning is triggered on the ECAM to indicate a loss of supply
[Rev.10 from 2021] 2026.03.31 23:24:44 UTC