A Power Cable Filter for an Outdoor Unit
In a shielded equipment room, outdoor unit power cables must be used together
with a
lter that has the following topology and component parameters.
Figure A-1 Filter topology
A, B, and C are connected to the indoor unit. A', B', and C' are connected to the
outdoor unit. E is the PE point for the lter, which is grounded nearby.
Table A-1 Filter component
specications
Positi
on
No.
Name Specication
s
Devia
tion
Remarks
L Common-
mode
inductor
22.5–45 mH
@ 10 kHz
- Ultra-microcrystal inductor,
which can withstand 16 kHz
switching frequency and does
not generate heat due to
saturation
C
y
Y capacitor 2.7 nF @ 10
kHz
±10% Thin lm feedthrough
capacitor
NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual A Power Cable Filter for an Outdoor Unit
Issue 08 (2021-09-17) Copyright © Huawei Technologies Co., Ltd. 312
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