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 Harmonic current emissions

Harmonic current emissions

Scope

This part of IEC 61000 deals with the limitation of harmonic currents injected into the public supply system

 

It specifies limits of harmonic components of the input current which may be produced by equipment tested under specified conditions.

 

This part of IEC 61000 is applicable to electrical and electronic equipment having an input current up to and including 16 A per phase, and intended to be connected to public low-voltage distribution systems.

 

Arc welding equipment which is not professional equipment, with input current up to and including 16 A per phase, is included in this standard.

 

Arc welding equipment which is not professional equipment, with input current up to and including 16 A per phase, is included in this standard.

 

For systems with nominal voltages less than 220 V (line-to-neutral), the limits have not yet been considered.

 

General

The objective of this standard is to set limits for harmonic emissions of equipment within its scope, so that, with due allowance for the emissions from other equipment, compliance with the limits ensures that harmonic disturbance levels do not exceed the compatibility levels defined in IEC 61000-2-2.

 

Professional equipment that does not comply with the requirements of this standard may be permitted to be connected to certain types of low voltage supplies, if the instruction manual contains a requirement to ask the supply utility for permission to connect. Recommendations concerning this aspect are contained in IEC/TS 61000-3-4 or IEC 61000-3-12.


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