Delta VFD4A8MS21ANSAA User Manual

Chapter 7 Optional AccessoriesMS300
64
The table below shows the THDi specification when using Delta's drives to work with AC/DC reactors.
Drive Spec.
Models without Built-in DC Reactors
Models with Built-in DC Reactors
Reactor
Spec.
No AC/DC
Reactor
3% Input AC
Reactor
5% Input AC
Reactor
4% DC
Reactor
No AC Input
Reactor
3% Input AC
Reactor
5% Input AC
Reactor
5th
73.3%
38.5%
30.8%
25.5%
31.16%
27.01%
25.5%
7th
52.74%
15.3%
9.4%
18.6%
23.18%
9.54%
8.75%
11th
7.28%
7.1%
6.13%
7.14%
8.6%
4.5%
4.2%
13th
0.4%
3.75%
3.15%
0.48%
7.9%
0.22%
0.17%
THDi
91%
43.6%
34.33%
38.2%
42.28%
30.5%
28.4%
NOTE
The THDi specification listed here assumes that there is 0.8% resistance (mains electricity) before the reactors
and may be slightly different from the actual THDi, depending on the installation and environmental conditions
(wires, motors).
Table 7-22

Delta VFD4A8MS21ANSAA Specifications

General

Brand	Delta
Model	VFD4A8MS21ANSAA
Category	DC Drives
Language	English