One, harmonic source

1 electric arc furnace

2 and the rectifier rectifier

3 welding equipment

4 electronic lighting control device

5.UPS power supply system

6 air conditioning (Bian Pin)

7 high-rise elevator

8.TV video equipment, video surveillance equipment TV

9 magnetic saturation voltage stabilizing device

10 computer, printer, copier, frequency conversion refrigerator etc.

Two, treatment scheme

1 using the anti harmonic compensation peak choke coil FG and harmonic elimination CBQ;

2 real time intelligent detection option filter compensation.

Note: according to the actual situation to choose treatment method