Mitsubishi Electric FR-F820-00046 Instruction Manual page 94

 Equivalent capacity limit
Received power voltage
6.6 kV
22/33 kV
66 kV or more
 Harmonic content (when the fundamental current is considered as 100%)
Reactor 5th
Not used 65
Used (AC side) 38
Used (DC side) 30
Used (AC, DC sides) 28
 Calculation of equivalent capacity P0 of harmonic generating equipment
"Equivalent capacity" is the capacity of a 6-pulse converter converted from the capacity of consumer's harmonic generating
equipment and is calculated by the following equation. If the sum of equivalent capacities is higher than the limit (refer to the
list of the equivalent capacity limits), harmonics must be calculated by the equation in next subheading.
P0 = Σ (Ki × Pi) [kVA]
Ki: Conversion factor (Refer to the list of the conversion factors.)
Pi: Rated capacity of harmonic generating equipment
i: Number indicating the conversion circuit type
*1 Rated capacity: Determined by the capacity of the applied motor and found in the table "Rated capacities and outgoing harmonic currents of
inverter-driven motors". The rated capacity used here is used to calculate the generated harmonic amount and is different from the power supply
capacity required for actual inverter drive.
 Calculation of outgoing harmonic current
Outgoing harmonic current = fundamental wave current (value converted from received power voltage) × operation ratio ×
harmonic content
• Operation ratio: actual load factor × operation time ratio during 30 minutes
• Harmonic content: Refer to the list of the harmonic content.
 Rated capacities and outgoing harmonic currents of inverter-driven motors
Fundamental
Applicable
wave current (A)
motor (kW)
200 V 400 V
0.4 1.61 0.81
0.75 2.74 1.37
1.5 5.50 2.75
2.2 7.93 3.96
3.7 13.0 6.50
5.5 19.1 9.55
7.5 25.6 12.8
11 36.9 18.5
15 49.8 24.9
18.5 61.4 30.7
22 73.1 36.6
30 98.0 49.0
37 121 60.4
45 147 73.5
55 180 89.9
Reference capacity
50 kVA
300 kVA
2000 kVA
7th 11th
41 8.5
14.5 7.4
13 8.4
9.1 7.2
*1
[kVA]
Fundamental
Outgoing harmonic current converted from 6.6 kV (mA) (No reactor, 100%
Rated
wave current
capacity
converted from
(kVA)
5th
6.6 kV (mA)
49 0.57 31.85
83 0.97 53.95
167 1.95 108.6
240 2.81 156.0
394 4.61 257.1
579 6.77 376.1
776 9.07 504.4
1121 13.1 728.7
1509 17.6 980.9
1860 21.8 1209
2220 25.9 1443
2970 34.7 1931
3660 42.8 2379
4450 52.1 2893
5450 63.7 3543
13th 17th
7.7 4.3 3.1
3.4 3.2 1.9
5.0 4.7 3.2
4.1 3.2 2.4
operation ratio)
7th 11th 13th
20.09 4.165 3.773
34.03 7.055 6.391
68.47 14.20 12.86
98.40 20.40 18.48
161.5 33.49 30.34
237.4 49.22 44.58
318.2 65.96 59.75
459.6 95.29 86.32
618.7 128.3 116.2
762.6 158.1 143.2
910.2 188.7 170.9
1218 252.5 228.7
1501 311.1 281.8
1825 378.3 342.7
2235 463.3 419.7
3. PRECAUTIONS FOR USE OF THE INVERTER
19th 23rd 25th
2.6 1.8
1.7 1.3
3.0 2.2
1.6 1.4
17th 19th 23rd 25th
2.107 1.519 1.274 0.882
3.569 2.573 2.158 1.494
7.181 5.177 4.342 3.006
10.32 7.440 6.240 4.320
16.94 12.21 10.24 7.092
24.90 17.95 15.05 10.42
33.37 24.06 20.18 13.97
48.20 34.75 29.15 20.18
64.89 46.78 39.24 27.16
79.98 57.66 48.36 33.48
95.46 68.82 57.72 39.96
127.7 92.07 77.22 53.46
157.4 113.5 95.16 65.88
191.4 138.0 115.7 80.10
234.4 169.0 141.7 98.10
3.2 Power supply harmonics
1
2
3
4
5
6
7
8
9
10
93