Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Standard general-purpose motors have several advantages of importance to the user of electric motor drives.
Member rating: No Rating | Words: | Submitted: Fri Jan 09 2004
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
INTRODUCTION Standard general-purpose motors have several advantages of importance to the user of electric motor drives. These arise due to the high degree of standardisation in terms of rating, duty, dimensions, electrical and thermal characteristics, and construction and also because they are manufactured in large numbers. The main advantages are their relatively low cost, they are easy to replace directly with another motor without any modifications, they are easy to repair, and are readily available. However, there are special requirements for particular applications 'special' motors are inevitable. In some cases standard frame sizes can be used with special shafts, finishes or mounting arrangements. In others, either special performance characteristics or space constraints demand a completely new design. CRANE MOTORS The term 'crane motors' can usually be applied to motors, which carry out the three primary crane functions: Load lifting and lowering (hoist motors); Motion along the factory; Motion across the factory. Generally one motor is employed for each...
Get instant access
- Instant, unlimited access to our documents in full
- Swap your work for free access, or pay £4.99
- To see the full version of this document and 147,231 others
Receive email updates for this category
- Simply tell us your email address and receive a weekly Study Help Email for FREE
- Receive 3 FREE essay views with each email
- Get all the latest essays from Coursework.Info & discussion from TheStudentRoom.co.uk
