5000kw cage motor starter

5000kw cage motor starter 1. overview of devices YQG series of high-pressure liquid resistance cage motor starter apply to the three-phase AC 3kV, 6kV, 10kV high-voltage and medium-sized cage induction motor or synchronous motor soft start of the step-down. The principle is that by changing the stator in the series loop of liquid resistance of the resistance, so that the start-voltage electric motor with the slip to reduce the increase. To maintain the current start-up in about three times the rated current in order to achieve the soft-start motor. The device has the advantage of using the grid on the impact of small, start-up success rate is high, the alternative is the reactor, the ideal start-up auto-step-down equipment. Widely used in building materials, metallurgy, chemical industry, such as fans, pumps, compressors start-up, easy to operate, reliable and easy to use.2.the principle of working The device's operating principle is charged with the motor stator in the string loop into the three-phase liquid resistance, resistance with the fluid motor automatically input resistance within the target period of time without reducing the level so that the motor terminal voltage step by step Increased realization of a smooth soft start impact.3.characteristics 1. The device has a small start-up current and constant, and gradually increase the torque Characteristics of the start-up, start-up performance is better than starting reactor; 2. On the impact of small power grids to ensure reliable operation of power grids; 3. Starting current rated current of about 1.5 to 3.5 times; 4. May be two or three times in a row; 5. A smooth start-up, the mechanical stress the impact of small, effective protection of the motor and transmission machinery.4. The use of environmental conditions Ambient temperature: 0 +40 ; Relative Humidity: no more than 90%; Altitude : no more than 1000 meters; Installation: vertical gradient of not more than 5 , no fire, explosion hazards, conductive dust, corrosive gases and severe vibration. 5.The main technical parameters (see table below) Product specificationsElectrical PowerkWStart timesLiquid normal Operating temperatureEarth Pressure Alternating voltagekV/minYQG 500 / ≤5001040Pre-setting0703kV 25 12 6kV 30/32 15 10kV 38/42 18 YQG 1000 / ≤1000YQG 1500 / ≤1500YQG 2000 / ≤2000YQG 3000 / ≤30002050Pre-settingYQG 4000 / ≤4000YQG 5000 / ≤50002060Pre-settingYQG 6000 / ≤6000YQG 7000 / ≤7000YQG 8000 / ≤80003080Pre-settingYQG 9000 / ≤9000YQG 10000 / ≤10000YQG / 10000According to the technical requirements for special design