The User Manual of 580 Series General Frequency Converter

7.3.2 Power input terminal with AC input reactor

AC input reactor is used for decreasing the harmonic input current and as options for extraposition, it shall be outlayed when harmonic requirements for appliance is high. In 580 series, for the frequency converter of which the power is higher than 110kW, AC input reactor is standard confabulated while for the frequency converter of which the power is lower than 110kW, it belongs to optional configuration.

7.3.3 The output side of frequency converter with AC input reactor

The installation of AC INPUT REACTOR on the output side of frequency converter can be determined according to specific situation. The transmission line between frequency converter and motor can not be too long and if the cable is too long, the distributed capacitance shall become large and it can easily cause higher harmonic current.

If the output cable is too long, an output electric reactor shall be configured and when the length of cable is larger, AC input reactor shall be installed near the frequency converter.

The power of frequency converter (kw)	Rated voltage (V)	The minimum of cable length when output reactor is selected
4	200 ～500	50
5.5	200 ～500	70
7.5	200 ～500	100
11	200 ～500	110
15	200 ～500	125
18.5	200 ～500	135
22	200 ～500	150
≧30	280 ～690	150

7.4 Shield cable