5.2 Selection Tables
5.2.1 Terminology Used in Selection Tables
explains in detail the terminology used in the selection tables, see
to
.
Value
Description
Power rating
Frequency converter kW power rating from the type code. The power ratings in the tables refer to the
actual frequency converter operating conditions. Changing operating conditions between HO and NO
changes the frequency converter operating conditions. The selection of the VLT
®
Advanced Harmonic
Filter AHF 005/AHF 010 must match the actual operating conditions of the frequency converter.
Input current
The maximum input current ratings of the frequency converter in the specific mains supply voltage
ranges.
T4, T5, T6, and T7
The frequency converter type code voltage class.
Current rating
Filter current rating at nominal load. Current ratings are combined values when paralleling filters.
AHF 005
Performance level of 5% THDi or better at system level with nominal load.
AHF 010
Performance level of 10% THDi or better at system level with nominal load.
Ordering numbers
AHF ordering numbers. The selected AHF must match the actual mains type.
Power loss
Maximum filter power losses during nominal loading.
Acoustic noise level
Maximum acoustic noise level from filters at 1 m (3.3 ft) distance.
Enclosure size, enclosure
protection ratings, and fan
concept:
•
[Enclosure size] IP20 if1.
•
[Enclosure size] IP20 ef1.
•
[Enclosure size] IP20 if2.
•
[Enclosure size] IP20 ef2.
Confirming the fan concepts and reference to mechanical drawings as:
•
[Enclosure size] IP20 with internal fan type 1.
•
[Enclosure size] IP20 with external fan type 1.
•
[Enclosure size] IP20 with internal fan type 2.
•
[Enclosure size] IP20 with external fan type 2.
IP00
Enclosure protection rating IP00. Forced cooling cools the AHF filters. IP00 types have no fans, and a
minimum required airflow must be ensured separately during installation of the IP00 versions in
panels. See
chapter 4.1.4 Ventilation and Cooling Requirements
for details.
IP20
Enclosure protection rating IP20. Built-in fans cool IP20 types as part of the mechanical design. IP21/
NEMA 1 upgrade kits are available for all IP20 types as separate options.
Table 5.2 Terminology Used in the Selection Tables
Selection of Advanced Harmo...
Design Guide
MG80C502
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Содержание VLT AHF 005
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