Omron SYSDRIVE 3G3JV - Page 242

11-4
H Motor Burnout Caused by Insufficient Dielectric Strength of Each
Phase of Motor
Surge occurs among the phases of the motor when the output voltage is switched.
If the dielectric strength of each phase of the motor is insufficient, the motor may burn out.
The dielectric strength of each phase of the motor must be higher than the maximum surge voltage.
Normally, the maximum surge voltage is approximately three times the power voltage imposed on the
Inverter.
H Selection Examples for Breakers and Electromagnetic Contactors
Inverter No-fuse breaker (MCCB) Electromagnetic contactor (MC)
Power
l
Capac-
it
Rated
t
No reactor Reactor No reactor Reactor
supply
p
ity
(kW)
current
(A)
Model Cur-
rent
(A)
Model Cur-
rent
(A)
Model Rated appli-
cable cur-
rent/break-
ing current
capacity (A)
Model Rated appli-
cable cur-
rent/break-
ing current
capacity (A)
200 V,
th
0.1 1.1 ABS33b3A 3 ABS33b3A 3 J7L-09 11/110 J7L-09 11/110
,
three-p
hase
0.2 1.8 ABS33b3A 3 ABS33b3A 3 J7L-09 11/110 J7L-09 11/110
h
ase
0.4 3.9 ABS33b5A 5 ABS33b5A 5 J7L-09 11/110 J7L-09 11/110
0.75 6.4 ABS33b10A 10 ABS33b10A 10 J7L-09 11/110 J7L-09 11/110
1.5 11.0 ABS33b15A 15 ABS33b10A 10 J7L-18 18/180 J7L-09 11/110
2.2 15.1 ABS33b20A 20 ABS33b15A 15 J7L-22 20/200 J7L-18 18/180
3.7 24.0 ABS33b30A 30 ABS33b20A 20 J7L-40 35/350 J7L-22 20/200
200 V,
il
0.1 1.8 ABS32b3A 3 ABS32b3A 3 J7L-09 11/110 J7L-09 11/110
,
single–
phase
0.2 3.5 ABS32b5A 5 ABS32b5A 5 J7L-09 11/110 J7L-09 11/110
p
h
ase
0.4 7.4 ABS32b10A 10 ABS32b10A 10 J7L-09 11/110 J7L-09 11/110
0.75 12.8 ABS32b15A 15 ABS32b15A 15 J7L-18 18/180 J7L-18 18/180
1.5 20.5 ABS32b30A 30 ABS32b20A 20 J7L-40 35/350 J7L-22 20/200
400 V,
th
0.2 1.6 ABS33b3A 3 ABS33b3A 3 J7L-09 7/70 J7L-09 7/70
,
three-p
hase
0.4 2.4 ABS33b5A 5 ABS33b3A 3 J7L-09 7/70 J7L-09 7/70
h
ase
0.75 4.7 ABS33b5A 5 ABS33b5A 5 J7L-09 7/70 J7L-09 7/70
1.5 7.0 ABS33b10A 10 ABS33b10A 10 J7L-09 7/70 J7L-09 7/70
2.2 8.1 ABS33b15A 15 ABS33b10A 10 J7L-18 13/130 J7L-09 7/70
3.0 10.6 ABS33b15A 15 ABS33b10A 10 J7L-18 13/130 J7L-12 9/90
3.7 12.0 ABS33b20A 20 ABS33b15A 15 J7L-22 20/200 J7L-18 13/130
100 V,
single-
0.1 3.2 ABS33b10A 10 ABS33b10A 10 J7L-12 13/130 J7L-12 13/130
s
i
ng
l
e-
phase
0.2 6.2 ABS33b15A 15 ABS33b15A 15 J7L-18 18/180 J7L-18 18/180
Using the Inverter for a Motor Chapter 11