Fuji Electric EW32EAG - Page 74

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3
Selection and application
3-8 Selecting an MCCB for capacitor circuit
Table 3-20 (2) MCCB rated current application examples for three-phase capacitor equipment capacity
Rated frequency
(Hz)
Rated voltage
(V)
Rated equipment
capacity (kvar)
Rated current
(A)
Capacitor rating Series reactor 6% MCCB rated
current (A)
MC type
(reference)
(kvar) (μF) (kvar) (mH)
50 200 1.34 3.9 1.43 100 0.09 6.06 10 SC–03
2.67 7.7 2.84 200 0.17 3.04 15 SC–03
3.34 9.6 3.55 250 0.21 2.43 15 SC–03
4.01 11.6 4.27 300 0.26 2.03 20 SC–03
5 14.4 5.32 374 0.32 1.63 30 SC–4–0
10 28.9 10.64 748 0.64 0.81 50 SC–N1
15 43.3 15.96 1,122 0.96 0.54 75 SC-N2S
20 57.7 21.28 1,496 1.28 0.41 100 SC–N3
25 72.2 26.60 1,870 1.60 0.33 125 SC-N4
30 86.6 31.91 2,244 1.91 0.27 150 SC–N4
40 115.5 42.55 2,992 2.55 0.20 175 SC–N7
50 144.3 53.19 3,740 3.19 0.16 225 SC–N8
、
N10
75 216.5 79.79 5,610 4.79 0.11 350 SC–N11
100 288.7 106.38 7,480 6.38 0.08 500 SC–N12
150 433.0 159.57 11,220 9.57 0.05 700 SC–N14
200 577.4 212.77 14,961 12.77 0.04 900
300 866.0 319.15 22,441 19.15 0.03 1400
400 1.07 1.5 1.14 20 0.07 30.38 5 SC–03
1.60 2.3 1.70 30 0.10 20.32 5 SC–03
2.67 3.9 2.84 50 0.17 12.18 10 SC–03
4.01 5.8 4.27 75 0.26 8.11 10 SC–03
5 7.2 5.32 94 0.32 6.50 15 SC–03
10 14.4 10.64 187 0.64 3.25 30 SC–4–0
15 21.7 15.96 281 0.96 2.17 40 SC-N1
20 28.9 21.28 374 1.28 1.63 50 SC–N1
25 36.1 26.60 468 1.60 1.30 60 SC-N2
30 43.3 31.91 561 1.91 1.08 75 SC–N2S
40 57.7 42.55 748 2.55 0.81 100 SC–N3
50 72.2 53.19 935 3.19 0.65 125 SC–N4
75 108.3 79.79 1,403 4.79 0.43 175 SC–N7
100 144.3 106.38 1,870 6.38 0.33 225 SC–N8
、
N10
150 216.5 159.57 2,805 9.57 0.22 350 SC–N11
200 288.7 212.77 3,740 12.77 0.16 500 SC–N12
300 433.0 319.15 5,610 19.15 0.11 700 SC–N14
60 220 0.97 2.5 1.03 50 0.06 12.17 5 SC–03
1.94 5.1 2.06 100 0.12 6.08 10 SC–03
2.91 7.6 3.10 150 0.19 4.06 15 SC–03
3.88 10.2 4.13 200 0.25 3.04 20 SC–03
5 13.1 5.32 258 0.32 2.36 20 SC–03
10 26.2 10.64 515 0.64 1.18 40 SC–N1
15 39.4 15.96 773 0.96 0.79 60 SC-N2
20 52.5 21.28 1,030 1.28 0.59 100 SC–N2S
25 65.6 26.60 1,288 1.60 0.47 100 SC-N3
30 78.7 31.91 1,546 1.91 0.39 125 SC–N4
40 105.0 42.55 2,061 2.55 0.30 175 SC–N7
50 131.2 53.19 2,576 3.19 0.24 200 SC–N7
75 196.8 79.79 3,864 4.79 0.16 300
SC–N11
100 262.4 106.38 5,152 6.38 0.12 400 SC–N12
150 393.6 159.57 7,728 9.57 0.08 600 SC–N14
200 524.9 212.77 10,303 12.77 0.06 800 SC–N16
300 787.3 319.15 15,455 19.15 0.04 1200
440 1.55 2.0 1.65 20 0.10 30.45 5 SC–03
2.33 3.1 2.48 30 0.15 20.26 5 SC–03
3.11 4.1 3.31 40 0.20 15.18 10 SC–03
3.88 5.1 4.13 50 0.25 12.17 10 SC–03
5 6.6 5.32 64 0.32 9.44 10 SC–03
10 13.1 10.64 129 0.64 4.72 20 SC–03
15 19.7 15.96 193 0.96 3.15 30 SC-4-1
20 26.2 21.28 258 1.28 2.36 40 SC–N1
25 32.8 26.60 322 1.60 1.89 50 SC-N1
30 39.4 31.91 386 1.91 1.57 60 SC–N2
40 52.5 42.55 515 2.55 1.18 100 SC–N2S
50 65.6 53.19 644 3.19 0.94 100 SC–N3
75 98.4 79.79 966 4.79 0.63 150 SC–N5, N5A
100 131.2 106.38 1,288 6.38 0.47 200 SC–N7
150 196.8 159.57 1,932 9.57 0.31 300 SC–N11
200 262.4 212.77 2,576 12.77 0.24 400 SC–N12
300 393.6 319.15 3,864 19.15 0.16 600 SC–N14
Notes: •TheMCCBratedcurrentshouldbeapprox.150%ofthecapacitorratedcurrent.
 •TheMCCBshouldhaveenoughbreakingcapacitytocutoffshort-circuitcurrentinthecircuit.
 •Useamagneticcontactortoswitchmultiplecapacitorbanksforautomaticpowerfactorregulation.Besuretoinstallseries-connectedreactorsaswell.
 AddupthetotalcapacitanceheretoselecttheratedcurrentforthemainMCCB.
 •Asarule,useseries-connectedreactorstotaling6%oftheimpedance.