1. First, find out whether the motor burns the bearing (mechanical fault) or the coil (electrical fault). If it is the fault of burning coil, it is mainly caused by overcurrent, sometimes too high or too low voltage will also cause the coil to heat and short circuit, so check that the voltage when running is too different from the rated voltage.There may be several reasons for over-current short-circuiting: A. the equipment is overloaded to make the motor run for a long time at rated or over rated current. In particular, the starting current of the motor is 3-5 times that of the rated current. Therefore, we should try to avoid running with load or full load when starting the equipment (mainly depending on the matching allowance of rated current and normal operating current of motor). B, the motor works in a wet working environment. The insulation of the coils should be checked before the motor starts. The insulation requirements of different voltage grades are also different. May r...
1,Chilled water pump: a device that drives the circulation of water in a chilled water loop. The end of an air conditioning room (such as a fan coil unit, an air handling unit, etc.) requires cold water from the chiller. However, refrigerated water does not flow naturally due to the limitation of resistance, which requires the pump to drive the cooling water for circulation to achieve the purpose of heat transfer. 2,The cooling water pump in cooling water loop drive water device for circulating cooling water. As we know, take part in the refrigerant heat chiller, cooling tower and flows into the heat release. The cooling water pump is responsible for driving the cooling water circulating in the cooling tower and the unit closed loop shape. With the chilled water pump. 3,Feeding water pump: air conditioning water supply device, responsible for the treatment of soft water into the system. The commonly used pumps are horizontal centrifugal pumps and vertical centrifugal pumps, which can ...