Friday 22 January 2010

Permanent Magnet Motors Introduction and Trends





evhub, electric bikes
[info]umurali2000
Induction motor is preferred choice of manufacturer and customer primarily due its robustness, easy manufacturing, and low maintenance. But is this the most efficient motor? Answer is obviously no. Efficiency is function of losses, so let us revisit the Induction Motor losses as shown in figure1. Now if compare these losses with permanent magnet (PM) motor, we would notice that there is rotor copper loss which is almost 15 to 20% of overall losses.
As these losses goes down the cooling requirement of motor can be reduced.

PM motor offers following benefits over Induction Motor,
· No rotor copper losses
· Cooling of the motor only for the stator copper and iron loses, cooling requirements goes down
· Different size/ volume and arrangements of magnets on the rotor will lead variety of desired characteristics.
· Higher efficiency because of fewer losses.
· Compact high density magnets can reduce the overall size of motor

The indicative comparison of various parameters is covered in Conclusion.

If we compare various motor technologies as against design, performance and manufacturing parameters, following table helps to select the appropriate technology. The scale between Excellent and Positive is larger to magnify the difference in various technologies.

Read full article @ http://www.evhub.biz/news/permanent-magnet-motors-introduction-and-trends

Wheels 2010 launched in Coimbatore


Coimbatore , January 22, 2010 - 

Matrix Branding solution has launched Coimbatore's first mega automobile show WHEELS 2010 in Jenny Club, Coimbatore. Matrix Branding solution is established to bring literaray concept of  branding and marketing its practice. Their expertise includes Branding, Event Management, Marketing, Product launch and Market research. 

About Wheels 2010 

Wheels 2010 will offer a one stop location under a single roof which will showcase a wide range of products and services in automobile sector.
Wheels 2010 will provice its participants with a competitive edge.
Wheels 2010 will facilitate the maintenance of existing relationships, and the formation of new relations. 
Wheels 2010 will furnish opportunity for exhibitors to feel customer expectation first hand and onbtain customer feedback. 
Wheels 2010 will provide a gateway to reach automobiles enthusiasts, who are a plenty in Coimbatore and its influence areas. 

International Industrial Expo & Conferences , Chandigarh


International Industrial Expo & Conferences being organised in the “City Beautiful”. I am sure, you would find this event, a great platform for further business development of your Organisation. The details of the event are as follows

Dates:                                       12-15 February, 2010
Venue:                                      Exhibition Ground, Sector 34, Chandigarh
Event Edition:                           78th & 26th in series at Chandigarh .
Visitor Entry:                            Free by exchange of Business Card.
Event Website:                         www.industrialexpos.com
Alternate Email:                        harish@paramountexhibitors.com

Read more @ http://www.evhub.biz/news/international-industrial-expo--conferences--chandigarh