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ccdubs
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Joined: 25-July 06
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Local Time: Mar 15 2010, 12:08 PM
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25 Jul 2006
Hi all,
I have a project where we need to start a 200 kW induction motor. This motor has a load that can be decoupled by a clutch. Due to the no load starting I thought a good idea to connect the motor would be to run it up to synchronous (or near synchronous) speed and then engage the contactor. The local lines company are requiring us to limit our current draw to 600 - 700 A (~2 x FL Current 322A). I have looked for information about current draw when going online at near sychronous speed but haven't managed to find anything Can the above restrictions be met with this starting method? Does anyone have information on what current will be drawn for different speeds when closing the contactor? I am assuming there is more to it than just using the charecteristic curves. Any feedback appreciated. |
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