Where is the fault? A fuse blown are usually the result of a shorted bridge rectifier, flawed posistor, power transistor or FET, shorted main rotating of switch style power transformer, shorted secondary diode and etc. In this short article I’m removed to show you another key of electric troubleshooting tips.
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I obtained discouraged regarding where’s the explanation for power problem. Every time when i switch on the energy source the blend blow immediately (the fuse turned dark color and this show that there is a major short signal in the energy supply). I’ve checked most of the components in the power source and can’t find at fault! What i actually do is i desoldered most of the thought parts 1 by 1 and replaced with a identified good component.
I ultimately found the triggered of the energy source problem. Do you know what? It absolutely was the key filter capacitor (220 microfarad 400 volt). After replacing the filtration cap the energy offer labored completely fine. I begin my investigator work to find out why that capacitor may caused the fuse to hit although i previously proved it OK with my meters.
The yards that i used to test the filter limit were analog meter, digital capacitance meter and esr meter. In this information i will not describe about how exactly to check capacitor or testing capacitor and how capacitor work. I believed nearly all of you understand how to check always capacitors and also typically using this type of meters. Calculated with analog it revealed capacitor charging and launch, with digital Ceramic Capacitor Manufacturer tester it revealed about 220 microfarad and with esr meter it showed low esr studying!
That shown that the bad capacitor description when below full running voltage. Then, how do i validate that this filtration capacitor is flawed? By having an analog insulation tester. When i connect the faulty cover to the meter and press the get button-it revealed a very low opposition and this is actually the demonstrated of short enterprise involving the plate when voltage applied! There is nothing related to poor electrolyte.
A great capacitor will just revealed a charge and launch in the warmth meter like everyone else are checking a capacitor applying analog multimeter. In the market there’s rather numerous ranges that you could buy. It’s the number of 50v, 100v, 250v, 500v, 1000v and even 5000v! If you want to test a capacitor of 100 microfarad 160v then you definitely have to choose 100v. If you choose 250v, it will blow your capacitor that’s under test.
If you have the SENCORE TEST EQUIPMENT like the sencore lc meter LC102 OR LC103, these meters have the abilities of examining almost any capacitors with tests:It can check always aluminum electrolytic capacitor, picture capacitor, porcelain, large voltage capacitor and etc.
Conclusion-Different capacitor manufacturer made different form of quality of a capacitor. Possibly the poor capacitor that I undergone are from the cheapest grade one. A capacitor failure when below fill is quite rare. Applying ESR capacitor meter alone may solve most of the electrolytic capacitor problem.