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Suggested Engineering Changes to Modular Coil Lead
Area
James H. Chrzanowski
June 13, 2006
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Lead Area Design Changes
• Lead Area upper chill plate
• Lead Area lower cladding
• Improve tracking distance hardware to jumpers
• Eliminate floating Hardware– Jumper studs– Power bus joint
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Lead Area Chill Plates
- If possible eliminate upper chill plate
- Difficult to insulate
- Potential problem in future??
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Lead Area Cladding- Lower
• Replace lower cladding in lead area with G-11cr [eliminate floating pieces]
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Power Bus Tie-in Area
• Improve tracking distance- install barrier
• Eliminate floating through bolts- tie studs to one side of joint
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Improve Tracking Distance
• Improve tracking distance
• Install 032 in. thick G-11cr insulator under jumpers covering bolts
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Lead Area Floating Hardware-Link the [3] jumper studs to the bottom jumper using G-11cr [1] insulator and copper plate [2]
-Tie plate to jumper 1 lug [3] using wire
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