Table of Contents

Abstract

Specifies electromagnetic compatibility (EMC) requirements for adjustable speed a.c. or d.c. motor drives connected to mains supplies up to 1000 V a.c. Defines limits and test methods. Drives in traction applications are not covered.
RECONFIRMATION NOTICE
Technical Committee EL-027 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 12 August 2015.
The following are represented on Technical Committee EL-027:
Australian Industry Group
Bureau of Steel Manufacturers of Australia
Engineers Australia
RMIT University

Scope

This part of IEC 61800 specifies electromagnetic compatibility (EMC) requirements for power
drive systems (PDSs). A PDS is defined in 3.1. These are adjustable speed a.c. or d.c. motor
drives. Requirements are stated for PDSs with converter input and/or output voltages (line-to-line voltage), up to 35 kV a.c. r.m.s.
PDSs covered by this standard are those installed in residential, commercial and industrial
locations with the exception of traction applications, and electric vehicles. PDSs may be
connected to either industrial or public power distribution networks. Industrial networks are
supplied by a dedicated distribution transformer, which is usually adjacent to or inside the
industrial location, and supplies only industrial customers. Industrial networks can also be
supplied by their own electric generating equipment. On the other hand, PDSs can be directly
connected to low-voltage public mains networks which also supply domestic premises, and in
which the neutral is generally earthed (grounded).
The scope of this part of IEC 61800, related to EMC, includes a broad range of PDSs from a
few hundred watts to hundreds of megawatts. PDSs are often included in a larger system. The
system aspect is not covered by this standard but guidance is provided in the informative
annexes.
The requirements have been selected so as to ensure EMC for PDSs at residential,
commercial and industrial locations. The requirements cannot, however, cover extreme cases
which may occur with an extremely low probability. Changes in the EMC behaviour of a PDS, as a result of fault conditions, are not taken into account.
The object of this standard is to define the limits and test methods for a PDS according to its
intended use. This standard includes immunity requirements and requirements for electro-magnetic
emissions.
NOTE 1 Emission can cause interference in other electronic equipment (for example radio receivers, measuring and computing devices). Immunity is required to protect the equipment from continuous and transient conducted and radiated disturbances including electrostatic discharges. The emission and immunity requirements are balanced against each other and against the actual environment of the PDS.
This standard defines the minimum EMC requirements for a PDS.
Immunity requirements are given according to the environment classification. Low-frequency
emission requirements are given according to the nature of the supply network. High-frequency
emission requirements are given according to four categories of intended use, which cover both environment and bringing into operation.
As a product standard, this standard may be used for the assessment of PDS. It may also be used for the assessment of CDM or BDM (see 3.1), which can be marketed separately.
This standard contains:
– conformity assessment requirements for products to be placed on the market;
– recommended engineering practice (see 6.5) for cases where high frequency emissions cannot be measured before the equipment is placed on the market (such PDSs are defined in 3.2.6 as category C4).
NOTE 2 The first edition of IEC 61800-3 identified that the intended use could require engineering for putting into service. This was done by the “restricted distribution mode”. Equipment that used to be covered by the “restricted distribution mode” is covered in the second edition by categories C2 and C4 (see 3.2).
This standard is intended as a complete EMC product standard for the EMC conformity
assessment of products of categories C1, C2 and C3, when placing them on the market (see
definitions 3.2.3 to 3.2.5).
Radio frequency emission of equipment of category C4 is only assessed when it is installed in
its intended location. It is therefore treated as a fixed installation, for which this standard
gives rules of engineering practice in 6.5 and annex E, although it gives no defined emission
limits (except in case of complaint).
This standard does not specify any safety requirements for the equipment such as protection
against electric shocks, insulation co-ordination and related dielectric tests, unsafe operation,
or unsafe consequences of a failure. It also does not cover safety and functional safety
implications of electromagnetic phenomena.
In special cases, when highly susceptible apparatus is being used in proximity, additional
mitigation measures may have to be employed to reduce the electromagnetic emission further
below the specified levels or additional countermeasures may have to be employed to
increase the immunity of the highly susceptible apparatus.
As an EMC product standard for PDSs, this standard takes precedence over all aspects of the
generic standards and no additional EMC tests are required or necessary. If a PDS is included as part of equipment covered by a separate EMC product standard, the EMC standard of the complete equipment applies.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 29/07/2016. This standard has been reconfirmed in Australia in 2016 and remains current in New Zealand. Reconfirmation Notice 29/07/2016
Pages
ISBN
Committee	EL-027
Supersedes	AS 61800.3-2001 DR 04482 CP