In this paper

the application of shunt capacitors in the harmonic environment is briefly analyzed.It is pointed out that in the project application

the interaction of the system

capacitor compensation installation and harmonic must be considered so as to avoid equipment fault due to harmonic amplification

and conclusion is given through comparison of actually measured data.Such situation as harmonic source is at power supply side and load side of power supply system is derivated and calculated respectively by the use of equivalent circuit

and the necessity of shunt capacitor and series reactor in the harmonic environment is explained and the reasonable suggestion on the reactance rate is proposed.