Справочник Пользователя для Mitsubishi Electronics IB-1500193(ENG)-D

Appendix 7 - 2

These guidelines apply to users for which the 6-pulse equivalent capacity total of the installed higher 

harmonic generator exceeds the reference in the following table. (Note that household appliances and 

general-purpose products having a rated current of 20A/phase or less connected to a 300V or less 

commercial power supply are excluded from the generators.)

Use the following flow chart to confirm whether the total exceeds the reference.

Higher Harmonic Suppression Guidelines were set in September 1994 by the Ministry of International Trade 

and Industry's Agency of Natural Resources and Energy.

•

Higher Harmonic Suppression Measure Guidelines for Household Appliances and General-purpose 

Products

•

Higher Harmonic Suppression Measure Guidelines for Consumers Receiving High Voltage or Special 

High Voltage Power

Higher harmonic 
suppression measures 
required

 

New installation, expansion or upgrading of facility

 

Calculation of total equivalent capacity

 

Calculation of higher harmonic current flow

 

Higher harmonic suppression measures not required

 

Higher harmonic current 

Step 2

 

Total equivalent capacity 

Step 1

 

Reference capacity exceeded 

Reference capacity or less

 

Upper limit value exceeded 

Upper limit