Summary : Summary : Operation principle and characteristic of the fan electrical machinery; Revolve round pair of the group electrical machinery magnetic field analysis only; The pulse shakes the analysis of the magnetism tendency; Characteristic of the single different step motor; The electric capacity operates the main winding of characteristic of the asynchronous motor is designed; The main parameter is calculated; The iron dawdles the wind dawdles and calculates; One pair of windings is designed; Start performance to calculate; Operation performance is calculated; Frequency conversion adjusts the speed principle; Frequency conversion adjusts the realization systematic in speed; Pay attention to the question while using; Noise of the electrical machinery and controlling; How to improve the overload capacity of the electrical machinery and start torque and overload capacity to improve the performance of the electrical machinery; Economy and feasibility analysis.
Keyword: Extremely every magnetism is open; Every extremely total magnetism tendency; Saturation coefficient; Transfer to the difference rate; 80C196KC