INVT CHV160A Series - Page 29

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
4.4.2 Wiring for inverter
● DC reactor
Figure 4.8 W iring at input side.
DC reactor is built in CHV190 inverter from 18.5kW ~90kW (380V classification) DC
reactor can improve power factor, can avoid bridge rectifier damaged due to
large-capacity transformer Ershi resulting in larger input current, can avoid rectifier
circuit damage caused by sinusoidal.
● Braking unit and braking resistor
17
DIEN DAN BIEN TAN HTTP://BIENTAN.HNSV.COM
CHV160A series special inverter for water supply
• Inverter of 18.5KW and above need connect external braking unit which should be
installed at (+) and (-) terminals. The cable between inverter and braking unit should be
less than 5m. The cable between braking unit and braking resistor should be less than
10m.
• The temperature of braking resistor will increase because the regenerative energy will
be transformed to heat. Safety protection and good ventilation is recommended.