ABB DCS880 series, Быстрое руководство

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Notes on EMC
Further information
is available in the
Technical Guide
The paragraphs below describe selection of the
electrical components in conformity with the
EMC Guideline.
The aim of the EMC Guideline is, as the name
implies, to achieve electromagnetic compatibility
with other products and systems. The guideline
ensures that the emissions from the product
concerned are so low that they do not impair
another product‘s interference immunity.
In the context of the EMC Guideline, two aspects
must be borne in mind:
• the product‘s interference immunity
• the product‘s actual emissions
The EMC Guideline expects EMC to be taken into
account when a product is being developed;
however, EMC cannot be designed in, it can only
be quantitatively measured.
Note on EMC conformity
The conformity procedure is the responsibility of
both the power converter‘s supplier and the
manufacturer of the machine or system
concerned, in proportion to their share in
expanding the electrical equipment involved.
Not applicable
satisfied satisfied
satisfied satisfied
Not applied, since category C1 (general distribution sales channel) excluded Not applicable
First environment (residential area with light industry) with PDS category C2 Second environment (industry) with PDS categories C3, C4
M M M M
M M
M M
Mains filter
Converter
Line reactor
Supply transformer for a residential
area (rating normally
≤
1.2 MVA)
Earthed public 400 V
network with neutral
conductor
Medium-voltage network
Earthed
neutral
Legend
Unscreened cable with restriction
Screened cable
To other loads
, e
.g.
dr
iv
e systems
An isolating transformer
with an earthed screen
and earthed iron core
renders mains filter and
line reactor superfluous. Operation at public
low-voltage network
together with other
loads of all kinds.
alter
nativ
e
alter
nativ
e
Line r
Y-capacitor
Residential area
To other loads which ha
ve to be protected from the system disturbances caused b
y
po
w
er con
ver
ters (HF interf
erence and comm
utation notches)
Converter
Medium-voltage network
Supply transformer for a residential
Earthed
neutral
Earthed public 400 V
network with neutral
conductor
To other loads
, e
.g.
dr
iv
e systems
Mains filter
Line reactor
Converter Converter
Mains filter
Line reactor
Converter Converter
An isolating transformer
with an earthed screen
and earthed iron core
renders mains filter and
line reactor superfluous. Operation at public
low-voltage network
together with other
loads of all kinds.
To other loads
, e
.g.
dr
iv
e systems
To other loads which ha
ve to be protected from the system disturbances caused b
y
po
w
er con
ver
ters (HF interf
erence and comm
utation notches)
Earthed public 400 V
network with neutral
conductor
Operation at public
low-voltage network
together with other
loads of all kinds.
Light industry
Residential area
Comm
utaion notches < 20%
area (rating normally 1.2 MVA)
M M M M M M M M
Mains filter
Converter
Line reactor
Supply transformer for a residential
area (rating normally
≤
1.2 MVA)
Earthed public 400 V
network with neutral
conductor
Medium-voltage network
Earthed
neutral
Legend
Unscreened cable with restriction
Screened cable
To other loads
, e
.g.
dr
iv
e systems
An isolating transformer
with an earthed screen
and earthed iron core
renders mains filter and
line reactor superfluous.
Operation at public
low-voltage network
together with other
loads of all kinds.
alter
nativ
e
alter
nativ
e
Line r
Y-capacitor
Residential area
To other loads which ha
ve to be protected from the system disturbances caused b
y
po
w
er con
ver
ters (HF interf
erence and comm
utation notches)
Converter
Medium-voltage network
Supply transformer for a residential
Earthed
neutral
Earthed public 400 V
network with neutral
conductor
To other loads
, e
.g.
dr
iv
e systems
Mains filter
Line reactor
Converter Converter
Mains filter
Line reactor
Converter Converter
An isolating transformer
with an earthed screen
and earthed iron core
renders mains filter and
line reactor superfluous.
Operation at public
low-voltage network
together with other
loads of all kinds.
To other loads
, e
.g.
dr
iv
e systems
To other loads which ha
ve to be protected from the system disturbances caused b
y
po
w
er con
ver
ters (HF interf
erence and comm
utation notches)
Earthed public 400 V
network with neutral
conductor
Operation at public
low-voltage network
together with other
loads of all kinds.
Light industry
Residential area
Comm
utaion notches < 20%
area (rating normally
≤
1.2 MVA)
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