Power supply
#2 is a current transformer. The wires cut off at the top were the
output sensing connectors. Maybe two sets - to a meter and to a controller. It appears that power comes in from the right - through fuses ? goes through a contactor and fires up the three phase transformer. The secondary of the three phase transformer is sent to the bridge of Thyristors - Likely SCR's the small wire are the control gate and a reference wire. That is a great mount of power being rectified there. Martin Martin H. Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net "Our Republic and the Press will Rise or Fall Together": Joseph Pulitzer TSRA: Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal. NRA Second Amendment Task Force Originator & Charter Founder IHMSA and NRA Metallic Silhouette maker & member. http://lufkinced.com/ On 9/29/2010 11:55 AM, Karl Townsend wrote: Turns out I have a power supply for my Matsurra bedmill. After stripping everything not needed away I ended up with this: http://www.metalworking.com/dropbox/supply1.jpg http://www.metalworking.com/dropbox/supply2.jpg A few questions. Each of the twelve diodes has a pair of wires, 24 connections on the terminal strip. I don't know the function here and if anything needs to be connected. Is the part labeled 1 an isolation transformer? If so, should DC- be grounded? Can the part labeled 2 be used to read current? There are four leads, how would they be connected. The part says "Nana Electronics NNC-05AF" Karl |
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