Connected in series with the alleged use of power between the soft starter motor, its internal control thyristor conduction angle, so that the motor input voltage is gradually increased from zero to a preset function until the end of starting the drive, giving the motor at full voltage, is the soft start, the soft-start process, the motor starting torque is increased, speed is also increased. Soft starters generally have the following types of start-up mode. Boost soft start ramp. The easiest way to start this, do not have the current closed-loop control, only adjust the thyristor conduction angle, and make the time to increase a certain function. The disadvantage is that, because the limited flow of servicing the drive motor starting process, sometimes you want to have a greater impact on current thyristor damage, a greater impact on the grid, the actual rarely used. Constant current soft start ramp. This starting mode is started at the initial stage of the motor starting current gradually increased, when the current reaches a pre-set value remains constant (t1 to t2 stage) inverter manufacturers until the start is completed. Start the process, the current rise rate of change is adjusted according to the motor load can be set. The current rate of rise is large, the starting torque, the starting time is short. The start-up mode is the most widely used starting mode, especially for start-fan and pump loads. Statistical data show that in recent years China frequency energy transformation products industry industrial output grew rapidly. Products to compete with well-known foreign brands frequency energy transformation, the domestic enterprises in the consolidation frequency energy transformation in the low frequency energy transformation market position, it should also accelerate the restructuring of high-end products, through in-depth exchanges and user frequency energy transformation energy transformation application of cutting-edge technology, development and production of high-frequency satisfaction of users of energy-saving products, the use of product development and product innovation, build brand, and brand development. Domestic inverter manufacturers of energy-saving equipment in the market share has surpassed imported frequency inverter brand energy-saving products, energy-saving inverter domestic enterprises are constantly narrow the technology gap with foreign enterprises, through technical research and quality control, quality assurance on the basis of established the domestic frequency energy transformation products a competitive advantage localization applications, fill frequency energy transformation product application blank. Servicing the drive _ _ Yueyang Pingjiang ohmic electrical drive provided by Ohm Electric Co., Yueyang City. Yueyang City Ohm Electric Co. (www.yyomdq.com/) strong, credible, Yueyang in Hunan inverter, dividers and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yueyang Ohm Electric and you work into the brilliant, for a better future!