空载功率法测量电梯平衡系数原理及应用OA

The process derivation of the power method is carried out,and the relevant theories are revised,the principle of measuring elevator balance coefficient using power method has been revealed,which can provide a theoretical basis for the subsequent design and development of no-load method measuring elevator balance coefficient instruments.In addition,a NICE3000new frequency converter is used to test the balance coefficient of a traction driven passenger elevator,it is found that the value measured by the no-load power method is basically consistent with the balance coefficient value obtained by the weight weighing method.For old elevators that cannot directly read the elevator balance coefficient,formulas can be derived based on experience for calculation,which has certain reference value.