NORD Drivesystems MI0700 - Manual (Page 46)

Frequency inverters – Migration Guide SK 700E to SK 5xxE
46 MI 0700 GB-0414
2.7.2 Output choke
The output chokes SK CO1-4x0/xxx-C are connected between frequency inverter and motor.
The tables below allocate the output chokes to the power range of the two frequency inverter series
and compare them. The output chokes are UL-approved and should always be installed in the switch
cabinet because of their IP00 protection class. Output chokes have screw terminals for connection.
Information Output choke
We recommend using an output choke with motor cables longer than 100 m (unshielded) or longer than 30 m
(shielded). As a rule, you can continue using existing output chokes of type SK CO1-460/xxx-C of the SK 700E
for the SK 5xxE when migrating from the SK 700E to an SK 5xxE frequency inverter.
For new installations and system extensions with an SK 5xxE frequency inverter, you should always plan and
implement an SK CO1-480/60-C with higher rated voltage in the power range of 18.5 kW to 300 kW.
All available output chokes for both frequency inverter series have been designed for a frequency inverter pulse
frequency of3 to 6 KHz only!
18.5 kW to 30.0 kW
Output choke
SK CO1-460/xxx-C
Part No.
Name
Information
Data
Output choke
SK CO1-480/xxx-C
Part No.
SK CO1-460/60-C
276996060
Output choke 460 / 480
• Power 18.5 kW to 30.0 kW
• 60.0 A / 60.0 A continuous current
• 3 x 0.33 mH / 3 x 0.33 mH inductivity
SK CO1-480/60-C
276992060
Table 31: 18.5 kW – 30.0 kW output chokes
90.0 kW
Output choke
SK CO1-460/xxx-C
Part No.
Name
Information
Data
Output choke
SK CO1-460/xxx-C
Part No.
SK CO1-460/170-C
276996170
Output choke
• Power 90.0 kW
• 170.0 A / 240.0 A continuous current
• 3 x 0.13 mH / 3 x 0.07 mH inductivity
SK CO1-460/240-C
276996240
Table 32: 90.0 kW output chokes
Information Technical information / data sheets
For more information and specifications such as dimensions of the input chokes mentioned in this chapter, please
refer to the pertaining Technical Information TI022 xxxxxxxxx or the respective manuals (BU 0700 and
BU 0500 or BU 0505).
The TIs Technical Information / data sheets of the output chokes can be downloaded on www.nord.com or can
be provided upon request.
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