Explosion-proof motor manufacturer: How to choose an explosion-proof motor?
2022-10-14 15:48
Explosion-proof motor manufacturers How to choose an explosion-proof motor?
1. Explosion-proof motor manufacturers: The explosion-proof rating of the explosion-proof motor must meet the requirements of the flammable and explosive environment. Do not choose a higher rating.
2. Explosion-proof motor manufacturers Determine the technical indicators of the explosion-proof motor based on the actual usage. The higher the η and cos in the technical indicators, the better, saving electricity; however, this is not the case for other indicators of explosion-proof motors. For example, for motors driving axial flow pumps and fans, Tst should be within the range of 0.6~0.8, and Tm should not be high; 1.6 is sufficient. If buyers are slightly more lenient on these two indicators, designers can supplement the extra functions dug here to Ist, which is to reduce Ist. This is of great practical significance for places using explosion-proof motors with smaller network capacity. Most motor loads are fans and pumps, so high Tst is not required. If manufacturers pursue this indicator excessively, the upper part of the die-cast aluminum rotor slot is designed to be very narrow, increasing unnecessary manufacturing difficulty; the use of interrupt bars and thin strips will lead to many failures.
3. Explosion-proof motor manufacturers: The protection level of the explosion-proof motor should be moderate. The main difference between IP54 and IP44 is in the dust-proof function. Some buyers choose IP44 explosion-proof motors instead of IP54 to save money, causing premature damage to the bearings of the explosion-proof motor. Conversely, when IP44 can meet the requirements, IP54 is not needed. The latter requires rubber sealing rings and is not as easy to maintain as the former.
All lifting of explosion-proof motors requires lifting rods or lifting holes; hanging or supporting on the iron core punch or coil is not allowed. When lifting the explosion-proof motor as a whole, use slings to evenly distribute the weight and use support rods to prevent the top cover from deforming. Improper operation and use of lifting rods and hooks during installation may cause more damage to the explosion-proof motor than years of operation. When handling the motor, be careful not to damage the windings.
Explosion-proof motor manufacturers If the explosion-proof motor needs to be temporarily placed, the motor or components should be lowered to an appropriate horizontal support. Do not use the lifting rings on the top cover and cooler to lift the entire motor. If the lifting is unbalanced due to a heavier coupling or other accessories, additional slings should be added to prevent tipping. Large-capacity explosion-proof motors are usually equipped with a rotor fixing device to prevent axial movement of the rotor. When handling the entire explosion-proof motor, the rotor fixing device must be installed. Failure to install the fixing device may cause damage due to axial movement of the rotor.
Shanghai Dasu Motor Co., Ltd. is a professional manufacturer of various low-voltage and high-voltage three-phase asynchronous motors and other products, integrating product research and development, production, sales, and service. The company is located in Jiu Ting Town, Songjiang District, Shanghai, 15 kilometers from the center of Shanghai, 8 kilometers from Shanghai Hongqiao Railway Station and Hongqiao Airport, and adjacent to the G60 Science and Technology Innovation Corridor. Its location is advantageous, and transportation is very convenient.
Fax: 021-67690505
Address: 678 Tongli Road, jiuting town, Songjiang District, Shanghai
