With the increase of reconstruction of rural power grid in China

shunt capacitors are installed on more and more rural grids to improve power factor and reduce line loss.Since particularity of load at rural grids and small amount of reactive power compensation

it is normally required in the tender to adopt 10 kV frame capacitor

stepping compensation of capacitor bank or non-stepping compensation of series reactor bank.Adoption of the compensation mode can simplify complexity of primary wiring

reduce cost of equipment

but bring such problems as non-match of reactance and harmonic amplification.In this paper

the case of reactance variation and harmonic amplification is described in case of coordination use of stepping compensation of capacitor and non-step compensation of series reactor

and the suggestion on ratings disposition of such normally used compensation mode is proposed.