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62
Harmonic suppression guideline
Harmonic currents flow from the inverter to a power
receiving point via a power transformer.The harmonic
suppression guidelines were established to protect other
consumers from these outgoing harmonic currents.
The three-phase 200V input specifications 3.7kW or less
are previously covered by "Harmonic suppression
guideline for household appliances and general-purpose
products" and other models are covered by "Harmonic
suppression guideline for consumers who receive high
voltage or special high voltage". However, the general-
purpose inverter has been excluded from the target
products covered by "Harmonic suppression guideline for
household appliances and general-purpose products" in
January 2004 and all capacities of all models are now
target products of "Harmonic suppression guideline for
consumers who receive high voltage or special high
voltage".
⋅ Harmonic suppression guideline for consumers who
receive high voltage or special high voltage
This guideline sets forth the maximum values of
harmonic currents outgoing from a high-voltage or
especially high-voltage 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.
Users who use models other than the target models are
not covered by the guideline. However, we ask to connect
an AC reactor and a DC reactor as before.
For compliance to the "Harmonic suppression guideline
for consumers who receive high voltage or special high
voltage"
For compliance to "Harmonic suppression guideline of
the general-purpose inverter (input current of 20A or less)
for consumers other than specific consumers" published
by JEMA
Calculation of outgoing harmonic current
Input
Power
Supply
Target
Capacity
Measures
Three-
phase 200V
All
capacities
Make a judgment based on "Harmonic
suppression guideline for consumers who receive
high voltage or special high voltage" issued by the
Japanese Ministry of Economy, Trade and Industry
(formerly Ministry of International Trade and
Industry) in September 1994 and take measures if
necessary. For calculation method of power supply
harmonics, refer to materials below.
Reference materials
⋅ "Harmonic suppression measures of the
general-purpose inverter"
Jan., 2004 Japan Electrical Manufacturer's
Association
⋅ "Calculation method of harmonic current of the
general-purpose inverter used by specific
consumers"
JEM-TR201 (Revised in December 2003) :
Japan Electrical Manufacturer's Association
Three-
phase 400V
Input
Power
Supply
Target
Capacity
Measures
Three-
phase 200V
3.7kW
or less
Connect the AC reactor or DC reactor
recommended in a catalog or an instruction manual.
Reference materials
⋅ "Harmonic suppression guideline of the general-
purpose inverter (input current of 20A or less)"
JEM-TR226 (Revised in December 2003) :
Japan Electrical Manufacturer's Association
Outgoing harmonic current = fundamental wave current (value converterd from
received power voltage) × operation ratio × harmonic content
⋅ Operation ratio: Operation ratio = actual load factor × operation time ratio
during 30 minutes
⋅ Harmonic content: Found in Table.
Table 1: Harmonic content (Values of the fundamental current is 100%)
Reactor 5th 7th 11th 13th 17th 19th 23rd 25th
Not used 65 41 8.5 7.7 4.3 3.1 2.6 1.8
Used (AC side) 38 14.5 7.4 3.4 3.2 1.9 1.7 1.3
Used (DC side) 30 13 8.4 5.0 4.7 3.2 3.0 2.2
Used (AC, DC sides) 28 9.1 7.2 4.1 3.2 2.4 1.6 1.4
Table 2: Rated capacities and outgoing harmonic currents of inverter-driven motors
Applied
Motor
kW
Rated
Current [A]
Fundamen
tal Wave
Current
Converted
from 6.6kV
(mA)
Rated
Capacity
(kVA)
Fundamental Wave Current Converted from
6.6kV
(No reactor, 100% operation ratio)
200V 400V 5th 7th 11th 13th 17th 19th 23rd 25th
0.75 2.74 1.37 83 0.97 53.95 34.03 7.055 6.391 3.569 2.573 2.158 1.494
1.5
5.50 2.75 167 1.95 108.6 68.47 14.20 12.86 7.181 5.177 4.342 3.006
2.2
7.93 3.96 240 2.81 156.0 98.40 20.40 18.48 10.32 7.440 6.240 4.320
3.7
13.0 6.50 394 4.61 256.1 161.5 33.49 30.34 16.94 12.21 10.24 7.092
5.5
19.1 9.55 579 6.77 376.4 237.4 49.22 44.58 24.90 17.95 15.05 10.42
7.5 25.6 12.8 776 9.07 504.4 318.2 65.96 59.75 33.37 24.06 20.18 13.97
11 36.9 18.5 1121 13.1 728.7 459.6 95.29 86.32 48.20 34.75 29.15 20.18
15
49.8 24.9 1509 17.6 980.9 618.7 128.3 116.2 64.89 46.78 39.24 27.16
18.5
61.4 30.7 1860 21.8 1209 762.6 158.1 143.2 79.98 57.66 48.36 33.48
22
73.1 36.6 2220 25.9 1443 910.2 188.7 170.9 95.46 68.82 57.72 39.96
30
98.0 49.0 2970 34.7 1931 1218 252.5 228.7 127.7 92.07 77.22 53.46
37 121 60.4 3660 42.8 2379 1501 311.1 281.8 157.4 113.5 95.16 65.88
45 147 73.5 4450 52.1 2893 1825 378.3 342.7 191.4 138.0 115. 7 80.10
55
180 89.9 5450 63.7 3543 2235 463.3 419.7 234.4 169.0 141.7 98.10
Applied
Motor
kW
Rated
Current [A]
Fundamen
tal Wave
Current
Converted
from 6.6kV
(mA)
Rated
Capacity
(kVA)
Fundamental Wave Current Converted from
6.6kV
(With DC reactor , 100% operation ratio)
200V
400V
5th 7th 11th 13th 17th 19th 23rd 25th
75 245 123 8200 87.2 2237 969 626 373 350 239 224 164
90 293 147 9800 104 2673 1158 748 445 419 285 267 196
110 357 179 11933 127 3254 1410 911 542 510 347 325 239
132 — 216 14400 153 3927 1702 1100 655 615 419 393 288
160 — 258 17200 183 4691 2033 1313 782 735 500 469 344
220 — 355 23667 252 6455 2797 1807 1076 1011 688 645 473
250 — 403 26867 286 7327 3175 2052 1221 11 48 782 733 537
280 — 450 27273 319 8182 3545 2291 1364 1282 873 818 600
315 — 506 30667 359 9200 3987 2576 1533 1441 981 920 675
355 — 571 34606 405
10382
4499 2907 1730 1627 1107 1038 761
400 — 643 38970 456
11691
5066 3274 1949 1832 1247 1169 857
450 — 723 43818 512
13146
5696 3681 2191 2060 1402 1315 964
500 — 804 48727 570
14618
6335 4093 2436 2290 1559 1462 1072
560 — 900 54545 638
16364
7091 4582 2727 2564 1746 1636 1200