Lightning in the drive, usually has lightning absorb the network, mainly to prevent momentary lightning invasion, the inverter damage. But in practice, especially in the case of power lines overhead introduced alone absorb network drive can not meet the requirements. In the active region lightning converter agent, this issue is particularly important if the overhead power line converter agent, the installation of variable frequency arrester (optional) into the line in place, according to specifications or far away from the inverter to 20m embedded steel made at special ground protection. If the power cable is introduced, it should do the control room of the lightning protection system to prevent lightning damage to equipment fleeing. Practice shows that this method can effectively solve the lightning basically the problem. Nine, harmonic control and reactive power compensation inverter power system harmonic control is widely used as the inverter, inverter power supply system and the significance of reactive power compensation is gradually being recognized. Inverter power supply by Fourier series can be decomposed into fundamental active current, fundamental reactive current converter agents, harmonics and inter-harmonics current. Omron inverter Omron Omron Industrial Automation Group's industry group development, production and sales of the brand inverter. Omron has been committed to the "automation" philosophy converter agent, breaking the boundaries of traditional applications of automation, so that the machine has the ability to perceive and think. It epitomizes the appliance industry one of the areas can Omron technology advantages and application solutions. Competition in China's home appliance industry has been in the past extensive scale expansion gradually transferred rely core technology research and enhance the quality of service; to stimulate consumer demand to upgrade the high-end consumer products to the healthy development of technology-driven industries of the new phase of energy-saving upgrades. With innovative electronic components and automated production has accumulated rich experience and technology, Omron is committed to being an excellent partner Chinese appliance manufacturing enterprises, to create a broader space for development. Inverter agents _ Yueyang Ohm Electric (certified) _ converter agent provided by Ohm Electric Co., Yueyang City. Yueyang City Ohm Electric Co. (www.yyomdq.com/) Hunan Yueyang, inverters, frequency divider leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In Yueyang Ohm Electric leadership with the staff warmly welcome all inquiries negotiations to create the ohmic electrical Yueyang a better future.