control of mechanical equipment 2

[mechanicaldup]

Hello

I am looking for a good reference book on the (motor) control and protection of mechanical equipment such as HVAC plants and pumps. Plse advice

Where can I find useful info on the Net?

 

[itsmoked]

I don't think you will have much luck with "refrigeration" because there is kind of a schism there. You may find something on "refrigeration" (gases, pressures, refrigerants, etc) and you may find something on motor maintenance but you probably won't find an encompassing tome.

It is one of those fields where the there is a disconnect between the power supply and the machinery. Often electricians hook up refrigeration equipment without any knowledge of the true harsh reality of just how 'on the edge' refrigeration equipment is run.

Furthermore the equipment is all different! This means you go to 'factory training' for each brand you plan to service. The makers don't want to publish this stuff.

Keith Cress
Flamin Systems, Inc.-

http://www.flaminsystems.com

 

[mechanicaldup]

what electrical refference books on motor control would you advice for mechanical engineers?

 

[jraef]

If you are wholly unfamiliar with electric motor controls in general, this is a great resource.

http://www.sea.siemens.com/step/default.html

If you are already comfortable with the "basics" of electricity, I would have you go directly to the lesson called "Motor Control Centers" because it includes basic motor control information as well.

What I think Keith was pointing out is that even those who deem themselves to be familiar with motor control in general sometimes do not fully appreciate some of the subtle nuances of it when it comes to HVAC equipment. This is primarily because a lot of OEM equipment manufacturers in that industry tend to take things such as motor ratings to the very edge rather than build in a little "fudge factor" engineering as is the common practice in other disciplines. This means that protection and control is even more critical, or at least should be.

JRaef.com
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