Table of Contents
Advertisement
Design
2-2-6 Harmonics Suppression in General-purpose Inverters
(Input Current of 20 A Maximum)
When equipped with the AC Reactor specified in section 5-2-5, the 3G3JE meets the harmonic sup-
pression guideline for general-purpose inverters (inverters with an input current of 20 A maximum)
issued by the Japan Electronic Device Industrial Council (JEDIC).
2-2-7 Guideline to Reduce Harmonics Emissions in Appliances
Receiving High Voltages or Special High Voltages
The 3G3JE meets the Guideline to Reduce Harmonics Emissions in Appliances Receiving High Volt-
ages or Special High Voltages (JEITA).
Guideline Applicability
■
This guideline is applicable to the following appliances.
1. Appliances receiving power from a 6.6-kV network with a total capacity exceeding 50 kVA consid-
ering the harmonics emission rate for each type of installed device emitting harmonics (called the
equivalent capacity)
2. Appliances receiving power from a 22-kV or 33-kV network with equivalent capacity exceeding
300 kVA
3. Appliances receiving power from a 66-kV or higher network with equivalent capacity exceeding
2,000 kVA
The limit for harmonic current, calculation methods for the equivalent capacity, and calculation meth-
ods for the harmonic current for appliances receiving 6.6 kV are described below.
●
Limit of Harmonic Current
The allowable value for the harmonic current flowing to the network from special appliances is cal-
culated for each harmonic number by multiplying the harmonic current limit per kilowatt of con-
tracted power given in the following table by the contracted power (in kilowatts).
Limits to Harmonic Current per kW of Contracted Power
Received
5th
voltage (kV)
6.6
3.5
2-34
7th
11th
13th
2.5
1.6
1.3
17th
19th
23rd
1.0
0.90
0.76
Chapter 2
(Unit: mA/kW)
Higher
than 23rd
0.70
Advertisement
Table of Contents
