A thermally operated contact mechanism is shown. If heated above the ambient temperature of 20°C (where EB is vertical) to a specified temperature the contacts at E and F will meet. EB is rigid while DC is made of aluminum (E = 68.9 GPa) and BA is bronze (E = 103 GPa). If the specified temperature is 110°C find the required spacing s needed. Use aA = 24x106/°C and aer=17.1x10/°C. 1. %3D Ans: 0.7425 mm 200 mm 400 mm 300 mm

A thermally operated contact mechanism is shown. If heated above the ambient temperature of 20°C (where EB is vertical) to a specified temperature the contacts at E and F will meet. EB is rigid while DC is made of aluminum (E = 68.9 GPa) and BA is bronze (E = 103 GPa). If the specified temperature is 110°C find the required spacing s needed. Use aA = 24x106/°C and aer=17.1x10/°C. 1. %3D Ans: 0.7425 mm 200 mm 400 mm 300 mm

Electrical Transformers and Rotating Machines

4th Edition

ISBN:9781305494817

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter5: Autotransformers

Section: Chapter Questions

Problem 7RQ: A 480-volt three-phase load is rated at 34.5 kVA. It is to be supplied with variable three-phase...

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