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star delta
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<blockquote data-quote="sparkyrj" data-source="post: 17236" data-attributes="member: 606"><p>What you have there is a rheostat starter.There are only three connections to the motor with these, and you start the motor with the handle in the position with the most resistance, and slowly move it to the other end as the motor gets going, this prevents high current at start up.I used to work at a department store in the 1980s and they had one for their compressor that ran the tube system for transferring money from the tills to the cash office.I had to start this up every morning, and if you were too fast with the handle it would trip out and you had to start again.Its probably from the days before star delta starters.</p></blockquote><p></p>
[QUOTE="sparkyrj, post: 17236, member: 606"] What you have there is a rheostat starter.There are only three connections to the motor with these, and you start the motor with the handle in the position with the most resistance, and slowly move it to the other end as the motor gets going, this prevents high current at start up.I used to work at a department store in the 1980s and they had one for their compressor that ran the tube system for transferring money from the tills to the cash office.I had to start this up every morning, and if you were too fast with the handle it would trip out and you had to start again.Its probably from the days before star delta starters. [/QUOTE]
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