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Alternative Power
mygoggie's venture in the world of hybrid electrical systems
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<blockquote data-quote="mygoggie" data-source="post: 1147154" data-attributes="member: 18916"><p>Yesterday I checked on the generator after [USER=24036]@Vaal[/USER] mentioned this piece of maintenance. Low and behold the battery was not charged! A quick check showed that it has lost a cell. Oh well, after 10 years of service I should not complain. Spent a few cases of wine on a new battery and installed it.</p><p></p><p>This morning I started checking circuits to determine why the DIN rail mounted battery charger is not charging. The fault was one thing most owners overlook. Electrical induced corrosion. The fuses in the fuse holders were corroded and created a higher resistance with a resultant voltage drop. While the charger was pushing 13,6 V only 13V reached the battery.</p><p></p><p>So I cleaned the fuses and holders and checked the screws in each circuit breaker, termination block and busbar. Quite a few were loose. This is another thing we all should do once a year. Check the fasteners of switchgear and termination equipment! AC electricity creates tiny vibrations in these fasteners and over time work the fasteners loose. Enough to cause a high resistance and a voltage drop. In fact I have dealt with two cases where such a poor connection actually generated enough heat to ignite the switchgear/wire plastic with the end result being severe fire damage to the building.</p><p></p><p>Once the DB was serviced, the battery was charging as expected!</p></blockquote><p></p>
[QUOTE="mygoggie, post: 1147154, member: 18916"] Yesterday I checked on the generator after [USER=24036]@Vaal[/USER] mentioned this piece of maintenance. Low and behold the battery was not charged! A quick check showed that it has lost a cell. Oh well, after 10 years of service I should not complain. Spent a few cases of wine on a new battery and installed it. This morning I started checking circuits to determine why the DIN rail mounted battery charger is not charging. The fault was one thing most owners overlook. Electrical induced corrosion. The fuses in the fuse holders were corroded and created a higher resistance with a resultant voltage drop. While the charger was pushing 13,6 V only 13V reached the battery. So I cleaned the fuses and holders and checked the screws in each circuit breaker, termination block and busbar. Quite a few were loose. This is another thing we all should do once a year. Check the fasteners of switchgear and termination equipment! AC electricity creates tiny vibrations in these fasteners and over time work the fasteners loose. Enough to cause a high resistance and a voltage drop. In fact I have dealt with two cases where such a poor connection actually generated enough heat to ignite the switchgear/wire plastic with the end result being severe fire damage to the building. Once the DB was serviced, the battery was charging as expected! [/QUOTE]
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Alternative Power
mygoggie's venture in the world of hybrid electrical systems
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