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Alternator Diode Parts
what makes rectifier diodes in genset keeps burning is improper grounding the cause or other else please help.
our cat 1.4 Mw keep busting its diodes even at 750 kw only of reactive loads. It is in parallel with another set of Cat 1.5 Mw. with the same loads. It has the same engine 3512 and alternator. almost all parts identical even the AVRs and load sharing modules. this is my concern in our power plant and it affected greatly our production (mining company) beside that costly replacements of diodes. Any help will be apreciated. So sad that even CAT Phils can't find the solution to our problem. in fact this is a new engine but since it arrive it gives us a lot of problem. We thought of not anymore purchasing CAT for our new genset requirements for our new Sulphide Plants. Can any CAT people in USA or somebody with the same problem help us.
there are only 3 main reasons to lose diodes, heat, over load, over voltage. is there some kind of large load that drops off line suddenly? if there is and the governer on the genset is slow to respond you may be seeing a high voltage problem that could fry diodes. you might have heatsink issues like not enough silcone heat transfer grease under the diodes, poor cooling air flow, or some kind of heat transfer into the diode such as hot sun or misdirected hot air from the engine or other source. vibration or shock is something else to look at. some reactive loads have problems with harmonics or spikes too. sorry i can't be more specific but maybe i have given you some ideas
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Delco Remy Alternator Diode (Rectifier) Part # 1894867 |  |
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US $12.00 | 3d 16h 29m |
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Rectifier Diode Kit for RSK2001 for UCI22/27 series alternator Generator parts | |
0 Bid | US $55.90 | 13h 14m |
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Rectifier Diode Kit for RSK5001 for for HC7/LV6 series alternator Generator part | |
0 Bid | US $76.99 | 13h 36m |
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Rectifier Diode Kit for RSK6001 for for HC7/LV6 series alternator Generator part | |
0 Bid | US $83.99 | 13h 37m |
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Delco Remy NOS Alternator Diode Rectifier Part# 1971671 | |
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US $7.99 | 21d 11h 57m |
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Delco Remy NOS Alternator Diode Rectifier Part # 1959829 D - 1902 ( 4 Pcs ) | |
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US $16.50 | 19d 5h 11m |
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Delco Alternator 3 Amp Diode Part Number 1876797 | |
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US $6.00 | 17d 16h 22m |
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3 SILICONE RECTIFIER ALTERNATOR DIODES D-1N STANDARD MOTOR PARTS D1N FREE SHIP | |
0 Bid | US $9.89 | 4d 12h 58m |
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BWD Alternator Diode - SC116 $4.39 BWD alternator diodes are manufactured to meet or exceed OE performance. Most Alternators products are available for in-store pickup from Advance Auto Parts. |
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BWD Alternator Diode - SC4N $5.69 BWD alternator diodes are manufactured to meet or exceed OE performance. Most Alternators products are available for in-store pickup from Advance Auto Parts. |
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BWD Alternator Diode - SC113 $3.99 BWD alternator diodes are manufactured to meet or exceed OE performance. Most Alternators products are available for in-store pickup from Advance Auto Parts. |
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BWD Alternator Diode - SC2P $3.69 BWD alternator diodes are manufactured to meet or exceed OE performance. Most Alternators products are available for in-store pickup from Advance Auto Parts. |
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Alternator Trio Diode by Omix-Ada $3.99 1976-86 CJ.1976-86 SJ |
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Alternator $259.99 Alternator; CS130D; 150 Amp; Polished; |
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Can I change a bad diode/diodes in my alternator?
My alternator has at least one bad diode. I need to fix it because it's an expensive high output alternator for a sound system. I need to know where I can get diodes and how to rebuild an alternator. Any info on special tools I might need or other special parts I might want to replace would be nice. Thank You.
yes you can do it and the parts stores can get the diodes for you but you will need a repair manual if you have never done it.
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