Mitsubishi Electric 800 Series Instruction Manual page 97

The three-phase 200 V input specifications 3.7 kW or lower (or single-phase 200 V input specifications 2.2 kW or lower) were
previously covered by the Harmonic Suppression Guidelines for Household Appliances and General-purpose Products and
other models were covered by the Harmonic Suppression Guidelines for Consumers Who Receive High Voltage or Special
High Voltage. However, the transistorized inverter has been excluded from the target products covered by the Harmonic
Suppression Guidelines for Household Appliances and General-purpose Products in January 2004 and the Harmonic
Suppression Guideline for Household Appliances and General-purpose Products was repealed on September 6, 2004.
All capacity and all models of general-purpose inverter used by specific consumers are now covered by "the Harmonic
Suppression Guidelines for Consumers Who Receive High Voltage or Special High Voltage" (hereinafter referred to as "the
Specific Consumer Guidelines").
• "Specific Consumer Guidelines"
This guideline sets forth the maximum harmonic currents outgoing from a high-voltage or especially high-voltage receiving
consumer who will install, add or renew harmonic generating equipment. If any of the maximum values is exceeded, this
guideline requires that consumer to take certain suppression measures.
• Maximum values of outgoing harmonic currents per 1 kW contract power
Received
power voltage
6.6 kV 3.5
22 kV 1.8
33 kV 1.2
 Application of the specific consumer guidelines
 Conversion factor
Classification
3
4
5
96
3. Precautions for Use of the Inverter
3.2 Power supply harmonics
5th 7th
2.5 1.6
1.3 0.82
0.86 0.55
Install, add or renew
Calculation of equivalent
Equal to or less
than reference
capacity
Above reference
capacity
Calculation of outgoing
harmonic current
harmonic current upper
Harmonic suppression
measures unnecessary
Three-phase bridge (capacitor
smoothing)
Single-phase bridge (capacitor
smoothing, full-wave rectification)
Self-excitation three-phase bridge
11th 13th
1.3 1.0
0.69 0.53
0.46 0.35
equipment
capacity total
Equivalent
capacity total
More than upper limit
Not more than
limit?
Harmonic suppression
measures necessary
Equal to or less
than upper limit
Circuit type
Without reactor
With reactor (AC side)
With reactor (DC side)
With reactors (AC, DC sides)
Without reactor
With reactor (AC side)
When a high power factor converter
is used
17th 19th
0.9 0.76
0.47 0.39
0.32 0.26
Conversion factor Ki
K31 = 3.4
K32 = 1.8
K33 = 1.8
K34 = 1.4
K43 = 2.9
K44 = 1.3
K5 = 0
23rd Over 23rd
0.70
0.36
0.24