 |
 |
 |
 |
 |
 |
 |
|
 |
 |
 |
|
 |
|
|
The Die-Cast Copper Motor Rotor Is a Commercial Reality Widespread adoption of this technology will bring important benefits to the motor industry and, importantly, to end users, environmentalists and the copper industry. I would like to share that perspective with Update readers. Motor Manufacturers 
Motor design engineers at SEW Eurodrive calculate that this copper technology can have a positive impact on costs because it may be possible to reduce the size of a motor without lowering its power output or level of efficiency — a major cost driver. And, if production experience like SEW's, proves it is possible to manufacture motors with copper rotors more economically than those with aluminum rotors, copper will replace aluminum in the rotors of many, if not most, induction motor applications. End-Users Clearly the use of premium-efficiency, and now the possibility of super-premium-efficiency motors, versus standard-efficiency motors will save end users a substantial amount of money over the life of a motor. And, as SEW's Martin Doppelbauer observes, unless economic incentives, such as rebates or tax incentives, are offered, many end users of high-efficiency motors are likely to continue making purchasing decisions based solely on the initial purchase price. The idea of life-cycle costing — long-term energy costs versus one-time purchasing costs — is still not sufficiently widespread. Purchasing managers must be further educated on the concept of energy efficiency. Governmental regulations raising the required minimum efficiency levels of motors would push managers in the right direction and help reduce energy consumption. MORE >> |
|