Recent comments in /f/BuyItForLife

PlasmaSheep t1_ixy63lt wrote

Put simply, the MOV acts as an open circuit until the voltage across live/ground or neutral/ground exceeds a "clamping voltage". The MOV then presents almost no resistance, making most of the current flow through it rather than through the device under protection. It gets "used up" because passing current through the varistor affects its structure and increases its clamping voltage.

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musclegeek t1_ixy4yln wrote

MOVs resistance changes inversely to the applied voltage. If the voltage across it increases the resistance decreases and vice versa. They are connected to gnd but have a very high resistance for the normal operating voltage. When the voltage spikes their resistance goes extremely low allowing current to pass effectively creating a short circuit to gnd.

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F-21 t1_ixy4lr9 wrote

That's just how it is, my 1997 Land Cruiser had the same fluid in the gearbox until ~300000km last year when I changed it the first time, which is beyond the mileage where most cars around here get discarded.

It does not make it any worse.

Like with this grease, some guy even said it should be swapped yearly. You're not doing anything good by that - if anything you're most likely to harm something like strip threads to some panel or whatever. Gears don't require a lot of lube anyway, it's probably more important for the bearings that drive them.

These kitchen aid mixers also probably use sealed bearings in the electric motor and most people don't think about repacking those with grease.

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Xyspade t1_ixy3392 wrote

It's not a fuse; fuses are protection for current (amps), surges are spikes in potential energy (volts).

It's a component (or multiple) called a MOV (metal oxide varistor). They divert surges to the ground pin, but somehow they also absorb the surges and fill to capacity eventually. I don't understand how they could do both because that seems contradictory, but I have yet to find a source that explains it properly.

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sponge_welder t1_ixy2zk0 wrote

I don't think you're going to find many supporters of sealed transmissions and lifetime fluids in the buy it for life subreddit, it's not a very long term solution, and it certainly doesn't apply to every manual transmission

And I'm specifying ATF and MTF because I'm used to Hondas, and Honda has a specific Manual Transmission Fluid. I know that it's not the same thing as ATF and that not all manufacturers have a specific manual transmission fluid

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Xyspade t1_ixy2ca0 wrote

Still, don't use it if the surge protection light goes out. If any additional surges come in after that, it could potentially violently blow up the MOVs (surge protection component). A good surge protector like a Tripp-Lite Isobar will cut power to the devices once the MOVs are used up.

You could open it and cut the MOVs out, and it would become a basic outlet splitter with no surge protection.

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ThatDarnScat t1_ixy1lpt wrote

Get it to drinking temp before you put it in. Then the efficiency is working for you. I make my coffee strong and put one ice cube in it. I have it down to a science where the icecube is a very specific size and it gets it to perfec, ringghhtt above drinking temp, and its perfect when I get to work.

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Vernon_HardSnapple t1_ixy1auo wrote

My wife wore out the motor in two of the 5qt 325w lift arm models made around 2000-ish. The first one stopped working a month after she got it. It’s replacement lasted 10 years or so until it stripped the nylon gear. I replaced the gear, but the motor just had no power after that and was unable to mix anything as stiff as cookie dough.

I see these recommended on BIFL fairly often. Are there heavier duty models available?

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