Thread: compressor and light question...
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Unread 24-06-2002, 00:47
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#0047 (ChiefDelphi)
  
Join Date: May 2001
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Re: Don't do this...
Posted by Lloyd Burns at 2/14/2001 9:20 AM EST


Other on team #188, Woburn Robotics, from Woburn Collegiate and Canada 3000, ScotiaBank, Royal Bank Financial.


In Reply to: Don't do this...
Posted by Joe Johnson on 2/13/2001 4:43 PM EST:



: I have not tested the pump, but you will probably draw close to the 10 Amps that the device is rated for.


: Joe J.

The previous (two years ago pump) was rated at 8 A, which was true while running (perhaps a little lower current was drawn on average), but on start-up, into a pressurized system, it would draw OVER 20 A (locked rotor current, basically). It blew fuses. The motor couldn't start with the load of the pump working into pressure.

Some wrote to First, and the rules were expanded to allow the use of a motor speed controller, which could handle the current better than the relay circuit in the controller.



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