2014年12月25日星期四

The choice of motor with fuse

 small motor spares suppliers of motor parts 
Specifications
1.20 years fan&motor manufactruer 
2.We can open mould&punch&diecast&finish&winding 
3.competitive price,high quality 
Choose fuse type and capacity, according to the protection of the load characteristics, the electric motors size of the short circuit current working conditions and use of the occasion. Most of the small and medium-sized generator price motor with light load or full pressure relief starting, starting current is diesel generator set usually 5 to 7 times of the rated current; The power capacity is larger, low-voltage distribution main transformer (including capacity) in 1000 ~ 400 kva, system impedance is small, when short-circuit fault occurs, the short circuit current is larger; The workplace such as kiln, grinding, poor ventilation condition, the working environment temperature is higher. Therefore, choose fuse breaking capacity and rated current of the melt, squirrel cage small diesel engine induction motor compared with the general industrial use should appropriately increase a bit. 


three phase induction electric motor Y series B35 1.5KW 2.2KW 37KW 75KW
Specifications
-One year warranty 
-Within 25 days delivery 

-Life: 5-7 years 
Melt the experience formula of the rated current, melt rated current ac synchronous generator (A) = motor rated diesel generator set current (A) (3) the melt rated current simplified formula "melt protection, kw by 6". The simplified formula, is refers to A 380 v cage motors, light load starting or decompression starting full pressure, low operating frequency, suitable for below 90 kw and cage motor. If the actual use of the motor starting frequently, or starting time is long, the empirical formula or the simplified formula of the above results can be appropriately increased a little, but it should not be too large. In short to achieve when the motor starting, melt by fusing; In the case of acmotor2.blogspot.com short circuit fault, the melt must be reliable fuse, cut off power supply, to achieve the purpose of the short circuit protection.

没有评论:

发表评论