We also should take protective measures for the volt power bright spots that produced by the series voltage resonance and the higherharmonic produced by the Electronic Ballast.
采用串联电压谐振产生高压起辉，必须采取过流保护措施。 电子镇流器高次谐波的产生及其所带来的危害。
2
KIWA synthetic power saver with his unique structure form eliminates higherharmonic of the electrical network by way of the balance in adjusting three-phase current and voltage.
KIWA综合节电装置以其独特结构形式，通过调整三相电流和电压的平衡，消除电网高次谐波。
3
Because of the ripple of the DC power supply, the output harmonic amplitude of the voltage controlled SPWM inverter is higher.