Water pump 50HZ impeller and 60HZ what is different, why not the same?
60Hz pump and 50Hz pump itself is not much difference, just that the motor speed, the rated speed is 3600 rpm, 1200 rpm, 1800 rpm, the latter is generally 3000, 1500, 1000 etc.. If it is to use the same pump, the difference is that the 60Hz motor pump flow is 50Hz, motor water pump flow of 1.2 times, the lift is 1.2*1.2=1.44 times, power is 1.2*1.2*1.2=1.728 times. So in the actual manufacture, especially some relatively large flow lift pumps, pump motor using 60Hz to use 50Hz thicker than the spindle motor of the pump impeller, the difference between the two, in addition to empty size shaft is different, what basically no difference. As for the data of package angle, the water conservancy models of different factories are different, but I don't know whether there is any difference between them. Most of them make no difference. However, if you want to use the 60Hz pump to achieve the same flow rate as the 50Hz pump, the impeller of the former should be cut to 0.833 times the size of the latter.
Water pump 50HZ impeller and 60HZ impeller, its outer diameter is not the same, 60HZ impeller slightly smaller. Because the speed of the impeller of 60HZ is faster, the impeller is a little smaller.Flow rate and speed, impeller diameter into a relationship: Q1/Q2 = n1/n2=D1/D2;Head and speed into two relations: H1/H2 = (n1/n2) 2Motor shaft power and speed into three relations: P1/P2 = (n1/n2) 3From the above deduction, we can know that the motor speed formula is n=60f/p, in which n is motor synchronous speed, and F is supply frequency. P is the pole number of the motor. It is known that the power supply frequency of the motor is proportional to the speed of the f. Therefore, to obtain the same head or flow, high speed, to use a smaller impeller.
50HZ motors are usually not damaged if they run on a 60HZ circuit, but the speed will increaseConversely, the 60HZ device runs on the 50HZ circuit, and the speed drops.Because of their different frequency, make them synchronous speed rotating magnetic field winding is different, so the rotor induction (induction motor) speed will be different, the pump will naturally lift Gao Shaoxu, and often will not cause damage to the equipment, because many things are in the 50HZ 60HZ.Second, for synchronous motors, the increase and decrease of speed is much more obvious than that of induction motors, because their rotor and motor are synchronous and keep synchronous speed
