Recent content by creisinger79
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Hoist Brake Coil Problem
Found a power supply to properly operate the brake coil. Thanks everyone for your help on this.- creisinger79
- Post #13
- Forum: Industrial Electricians' Talk
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Hoist Brake Coil Problem
I am aware as is the company I work for. We have been in contact with the original crane manufacturer and the crane service company and both agree that a properly sized 48VDC power supply should accomplish the same function as the old system (transformer, rectifier, diodes).- creisinger79
- Post #9
- Forum: Industrial Electricians' Talk
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Hoist Brake Coil Problem
I honestly didn't even think of that.... Took a resistance reading on the coil: 7.6 ohms. Came up with 303 watts of power and 6.3 amps using Ohm's Law.- creisinger79
- Post #6
- Forum: Industrial Electricians' Talk
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Hoist Brake Coil Problem
The power supply is 80W, 1.7A. This is a 15ton rated crane. The brake coil is large and rated at 48VDC...due to its age and poor record keeping, I don't have any more information on the coil. The crane manufacturer couldn't give us anything beyond the voltage. The bridge and trolley brakes...- creisinger79
- Post #4
- Forum: Industrial Electricians' Talk
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Hoist Brake Coil Problem
The hoist brake coil is a 48VDC coil. The original electrical system for the coil involved a transformer (480VAC-48VAC), rectifier, and resistors. The components are no longer manufactured and we are attempting to upgrade to using a stand-alone 48VDC power supply. When the brake coil is...- creisinger79
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- problem
- Replies: 13
- Forum: Industrial Electricians' Talk
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