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.

Ac frequency conversion compressor motor

ac three phase asynchronous electric motor stator 
Specifications
1. 20 years manufacturing experience 

2. competitive price,high quality 
Ac frequency conversion compressor motor is general three-phase ac asynchronous motor, dc brushless dc permanent magnet motor is of frequency conversion compressor rotor motor. Three phase motor Frequency conversion power module is also called intelligent power transistor, referred to as "IPM, a thick film integrated encapsulation. This article focuses on the output of the ac frequency conversion air conditioning circuit, there single phase induction motor are three kinds of common frequency conversion power circuit. One kind is to use a separate IPM, as shown in figure 1, IPM 11 terminals, direct welding outside control main edition; A circuit board is made of IPM and frequency conversion circuit integration, the whole circuit in the polyester encapsulation, and control ANP gost motor main board with a communication port control, is unable to repair; One is using IPM and drive circuit or the power supply circuit of frequency conversion power template, IPM has 21 terminal, control element can be seen, can repair, and control main board have signal connection.

The analysis of the causes of transformer oil leakage

Stator Motors Rotor
Specifications
1. 20 years manufacturing experience

2. competitive price,high quality

1,the seal quality reasons:At the scene of the collapse of the transformer terminals can be found at a time,leakage of oil terminal blocks most of fastening nut loose,install this doesn't mean that it did not tighten,with plane flange rubber gasket,for the first time after fastening tend to loose because of plastic deformation of ac induction motor the rubber gasket,need a second fastening.Transformer and our factory has been running for many years,there is no rubber gasket deformation problem,may explain why only is rubber gasket ageing lose elasticity,reducing the pressure on the surface of the flange connection.According to my years of generator generator set experience in maintenance,air isolation rubber gasket to run more than ten years should not have what problem.


Y series best cast iron three phase induction motor

Specifications
1. 20 years manufacturing experience
2. 12 months guarantee
3. low noise and temperature rise

4. high starting torque

Such as the transformer operation of our factory in nanjing,cichang has more than 20 years,did not find for porcelain set gasket aging oil leakage.Presumably liling porcelain production of transformer set gasket exist quality problems.2,environmental temperature change electricalmotor1.blogspot.com reasons:Refer to instruction for use of current transformer,transformer running environment temperature 40 ℃,the highest temperature is + minimum temperature of 40 ℃.Our factory area this summer outdoor certainly higher than 40 motor vehicle ℃,the highest temperature field measurement of the surface temperature is close to 50 ℃.After each part of the summer heat equipment thermal expansion,due to environment temperature drop after high temperature season,but all kinds of material shrinkage is not consistent with the temperature,cause the leakage of oil from the surface.This point in our plant is particularly prominent.

From abnormal vibration of asynchronous motor and how to determine the cause of the problem in his voice?

 electric motor 20hp aluminum body
Specifications
1.AC motor aluminum body
2.customized
3. 20 years manufacturing experience
4. competitive price,high quality

Asynchronous motor produce abnormal vibration and abnormal sound mainly has two aspects of mechanical and electromagnetic. Mechanical reasons: (1), motor blades damage or tighten screw loose blades, blades and the blades into cover, clattering sound produced by it with the weight of the sound, the big small; (2), due to the improper bearing wear or shaft, motor rotor eccentricity caused serious when will make, rotor rub, make the motor produces severe vibration and electric fan motor uneven scratches. (3), motor due to long-term use of the anchor bolt is loose or not foundation, thus the electromagnetic torque of the motor under the action of abnormal vibration; (4), long-term use of the electric motor 12v 500w motor due to a lack of lubricating oil in the bearing inner formed in mill run or bearing steel ball is damaged, therefore make the hiss of the motor bearing interior an exception or purr. Electromagnetic reasons: (1), the normal operation of the motor suddenly appear abnormal sound, in the load running speed decreases significantly, while a low along the roar, may be unbalanced three phase current, the heavy load or single phase operation.


Y series totally enclosed protect Asynchronous motor

Specifications
1. 20 years manufacturing experience
2. 12 months guarantee
3. low noise and temperature rise

4. high starting torque

(2), the normal operation of the motor, if the stator and rotor winding short-circuit fault ac induction motor 110kw or squirrel cage rotor broken bar when electric are high when low buzz. The fuselage vibration. (1), due to long-term lack of oil running of motor bearing, friction losses increase bearing overheating. In addition, when the motor running, the oil too much or too thick will also cause bearing overheating; (2), when the replacement of lubrication, due to the lubricating oil mixed with hard grain impurity or bearing cleaning uneven net, make bearing wear and overheating, even may damage the bearing; (3), due to improper assembly, fixed end cover wholesalemotor.blogspot.com screw tightness is differ, in a straight line between the two bearing center is unbalanced or bearing outer ring. The bearing rotation is not flexible, adds load after growing friction and heat; (4), belt too tight or motor and were not in a straight line with mechanical shaft center, and thus can increase the bearing load and heat; (5), bearing improper selection or poor quality, such as bearing internal and external ring rust, individual steel ball is not round, etc.; 6, in the operation of the motor bearing damaged, resulting in bearing overheating.