Danfoss VLT AAF00x, Руководство по эксплуатации

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PCC1
130BB520.11
M M
AAF
Illustration 4.39 Capacitor bank mounted on PCC, but CTs
installed to reassure that capacitor corrected current is not
measured.
4.5.11 Fuses
Branch circuit protection:
In order to protect the installation against electrical and
fire hazard, all branch circuits in an installation, switch
gear, machines etc., must be short-circuited and over-
current protected according to national/international
regulations.
Short-circuit protection:
The Active Filter must be protected against short-circuit to
avoid electrical or fire hazard. Danfoss recommends using
the fuses mentioned below to protect service personnel
and equipment in case of an internal failure in the device.
Over-current protection
The Active Filter is equipped with an internal over-current
protection that avoids overload in normal running
conditions. Overload protection is however needed in case
of internal failures to avoid fire hazard due to overheating
of the cables in the installation. Fuses or circuit breakers
can be used to provide the needed protection for the
installation. Over-current protection must always be carried
out according to national regulations.
Supplementary fuses
SMPS Fuse
Frame size Bussmann PN* LittelFuse Rating
D and E KTK-4 4 A, 600 V
Fan Fuses
Size/Type Bussmann PN* LittelFuse Rating
A190-250A,
AAF005 KTK-4 4 A, 600 V
A190 - A400,
AAF006 KLK-15 15 A, 600 V
Soft Charge resistor fuses
Frame size Bussmann P/N Rating
D and E FNQ-R 1 A, 600 V
Control Transformer fuse
Frame size Bussmann P/N Rating
D and E FNQ-R 3 A, 600 V
4.5.12 Mains Disconnectors
Frame
size Power & Voltage Type
D A190 380-480V ABB OETL-NF200A
E A250 380-480V ABB OETL-NF400A
E A310 380-480V ABB OETL-NF400A
E A400 380-480V ABB OETL-NF800A
4.5.13 Control and CT Cable Routing
Tie down all control wires to the designated control cable
routing as shown in the picture. Remember to connect the
shields in a proper way to ensure optimum electrical
immunity.
CT connection
Connections are made to the terminal block below the
active filter card. The cable must be placed in the provided
path inside the filter and tied down with other control
wires (see
Illustration 4.40
).
How to Install VLT Active Filter AAF 00x
34 MG.90.V2.02 - VLT® is a registered Danfoss trademark
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