Power Electronics SD750K, Hardware And Installation Manual

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POWER ELECTRONICS SD750K
MECHANICAL INSTALLATION
37
The cabinet must have two isolated zones, which permit independent cooling systems:
•
The Hot Zone consists of the back and top part of the drive, the air must be expelled out of
the cabinet and should avoid the internal or external recirculation. The hot zone inlet grating
must be aligned with the fan inlets of the drive. The inlet and outlet gratings for IP20, and the
additional fans for IP54 cabinet must be designed according to the following tables.
•
The cold zone consists of the Choke inductances, the electronics and connection terminals.
The cold zone inlet fan must be in front of the inductances and the exhaust fan on the upper
part of the cabinet. The inlet and outlet fans for IP20 or IP54 cabinet must be designed
according to the following tables.
MINIMUM FLOW RATES IP20 & IP54
SD750 Kompakt
Frame
Hot Zone Air Flow
(m
3
/h)
Cold Zone Air Flow
(m 3 /h)
Inlet fan Exhaust fan
1 800 150 191
2 1600 200 227
3 2400 220 250
4 3200 250 300
MINIMUM GRATINGS AREA IP20 & IP54
SD750 Kompakt
Frame
Hot Zone Cold Zone
Inlet grating
(mm
2
)
Outlet grating
(mm
2
)
Inlet grating
(mm
2
)
Outlet grating
(mm
2
)
1 25.500 92.500 12.000 18.000
2 40.000 172.500 20.000 28.000
3 63.000 252.500 30.000 45.000
4 90.000 332.500 42.000 62.500