March 2008 Newsletter - Sent to over 1,300 subscribers

We are pleased to announce the release of AEM Catalogue, an interactive resource for our complete range of products.

You can request a free AEM Catalogue 2008 CD by visiting the following page on our website:
http://www.adelaideelectricmotors.com.au/catalogue

We are doing our little bit for the environment by no longer distributing hard copy folders with printed brochures.

Installation of our state-of-the-art pump test rig begins next week. We are expecting this facility to be fully operational by the end of May. We'll keep you updated as installation progresses.

Davey ultra-violet sterilisation system which inactivates bacteria and viruses, making them harmless to humans.

Learn more about Steriflo UV Water Treatment Systems.

40lpm UV system: $994

40lpm UV system with filter kit: $1282

World Day for Water is the perfect time to look around your home for ways to reduce your water consumption. Most of the major newspapers will have a feature on Friday 21st (keep an eye out for AEM in The Advertiser!) with ways to conserve water.

If you already have a tank, why not install a home pressure pump and put your rainwater tank to use. Our Summer Sale has been extended, so take this opportunity to get a gutsy little pump at a ridiculous price!

With manual pumps for gardening from just $99, and fully automatic home pressure systems for just $185, you've got no excuse not to start using rainwater!

Built for Aussie conditions, this reliable Honda powered Dunlite generator comes in a sturdy rollframe, and has 5600 watts continuous output. Recoil and electric (key) start. With 2 year warranty.

Learn more about Dunlite Industrial Generators.

DGUH6ES-2    RRP: $2,675
Website special: $1,910
We'll take an extra $100 off for newsletter subscribers!
Your special price: Just $1,810
Two only at this special price.

Simple, robust and efficient, induction motors often convert 90% - 95% of input electrical power into mechanical work. Still, given the huge amount of energy they use, even minor changes in efficiency could have a big effect on operating costs.

Claims that repair/rewinding inevitably decreases motor efficiency have been commonplace. Based largely on a handful of studies of mostly smaller motors (up to 22.5 kW), they often assert that efficiency drops 1 - 5% when a motor is rewound, and even more with repeated rewinds.

In 2003, EASA and Nottingham University conducted extensive testing to see if rewinding a motor with good practice repair methods actually had any significant effect on motor efficiency.

• 50 and 60 Hz motors
• Low- and medium-voltage motors
• IEC and NEMA designs
• Open drip-proof (IP 23) and totally enclosed fan-cooled (IP 54) enclosures
• 2- and 4-pole motors
• 5.5 kW motors (for checking earlier results of multiple burnout cycles)
• Round robin tests on a new 30 kW motor, which indicate that such factors as supply voltage, repeatability of the test procedures, and instrumentation, taken together, can affect test results.

Each new motor was run at full load until steady-state conditions were established and then load tested, dismantled and the windings burned out in a controlled-temperature burnout oven. Each motor was then stripped, rewound, reassembled and retested using the same test equipment as before.

The results show that good practice repair methods (such as the EASA rewind guidelines, which AEM follows) maintain efficiency to within the range of accuracy that it is possible to measure using standard industry test procedures (± 0.2%), and may sometimes improve it.

Tune in next time for a detailed look at the results.

Automatic pressure pump designed specifically for the metropolitan market. Simply connect it to your rainwater tank, and this pump can supply water to one of:

• A garden hose with spray nozzle
• Two small impact sprinklers
• A garden spray system with up to 25 microjets
• A garden dripper system with up to 200 drippers

$325 inc. GST

28a-30 Holland St,
Thebarton, SA 5031

Ph: (08) 8443 3500
Fax: (08) 8443 3900

Email: info@aemgroup.net.au
Web: www.adelaideelectricmotors.com.au