INVT CHV160A Series - Wiring the Main Circuits

C.TY TNHH TỰ ĐỘNG HÓA VIỆT TRUNG 02413.281.181-
0989.984.666
Website:www.viet-trung.com.vn Đ/c:194-Nguyễn Trãi-Võ Cường-
TP.Bắc Ninh
Figure 4.7 W iring diagram.
16
DIEN DAN BIEN TAN HTTP://BIENTAN.HNSV.COM
CHV160A series special inverter for water supply
4 . 4 W i r i ng the Ma i n C i rc ui ts
4.4.1 Wiring at the side of power supply
● Circuit breaker
It is necessary to connect a circuit breaker which is compatible with the capacity of
inverter between 3ph AC power supply and power input terminals (R, S, T). The
capacity of breaker is 1.5~2 times to the rated current of inverter. For details, see
<Specifications of Breaker, Cable, and Contactor.
● Contactor
In order to cut off the input power effectively when something is wrong in the system,
contactor should be installed at the input side to control the ON-OFF of the main circuit
power supply.
● AC reactor
In order to prevent the rectifier damage result from the large current, AC reactor should
be installed at the input side. It can also prevent rectifier from sudden variation of
power voltage or harmonic generated by phase-control load.
● Input EMC filter
The surrounding device may be disturbed by the cables when the inverter is working.
EMC filter can minimize the interference. Just like the following figure.