Delta VFD040C43A-21 - Page 151

Chapter 7 Optional AccessoriesC2000 Plus
7-42
AC Output Reactor
When using drives in long wiring output application, ground fault (GFF), over-current (OC) and motor
over-voltage (OV) often occur. GFF and OC cause errors due to the drive’s self-protective mechanism;
over-voltage damages motor insulation.
The excessive length of the output wires makes the grounded stray capacitance too large, increase
the three-phase output common mode current, and the reflected wave of the long wires makes the motor
dv / dt and the motor terminal voltage too high. Thus, installing a reactor on the drive’s output side can
increase the high-frequency impedance to reduce the dv / dt and terminal voltage to protect the motor.
Installation
Installing an AC output reactor in series between the three output phases U V W and the motor, as
shown in the figure below:
Figure 7-25 Wiring of AC output reactor
Applicable Reactors:
200V–230V, 50/60 Hz / Heavy Duty
Model HP
Rated
current
(Arms)
Saturation
current
(Arms)
3%
impedance
(mH)
5%
impedance
(mH)
Built-in
DC
reactor
Output AC
reactor Delta
part #
Weight
(kg)
Heat
Dissipation
(W)
VFD007C23A-21 1 5 9 2.536 4.227 No DR005L0254 1.5 15
VFD015C23A-21 2 8 14.4 1.585 2.642 No DR008L0159 2.5 30
VFD022C23A-21 3 11 19.8 1.152 1.922 No DR011L0115 3.0 33
VFD037C23A-21 5 17 30.6 0.746 1.243 No DR017LP746 3.6 34
VFD055C23A-21 7.5 25 45 0.507 0.845 No DR025LP507 5.5 50
VFD075C23A-21 10 33 59.4 0.32 0.534 No DR033LP320 6.5 50
VFD110C23A-21 15 49 88.2 0.216 0.359 No DR049LP215 8.6 62
VFD150C23A-21 20 65 117 0.163 0.271 No DR065LP162 12 70
VFD185C23A-21 25 75 135 0.169 0.282 No DR075LP170 14.5 80
VFD220C23A-21 30 90 162 0.141 0.235 No DR090LP141 15 80
VFD300C23A-00
VFD300C23A-21
40 120 216 0.106 0.176 Yes DR146LP087 22 110
VFD370C23A-00
VFD370C23A-21
50 146 262.8 0.087 0.145 Yes DR146LP087 22 110