In the winter, we can experience freezing rain and ice combined with wind. These elements can weigh tree branches down, making them more likely to hit power lines.
Galloping is when the wind causes the lines to swing and slap together, resulting in a momentary outage or blink. Unfortunately, nature causes galloping and there is not much WH can do to prevent it.
We hope this helps with any questions you may have, and we appreciate your continued patience as we fix any outages that may occur as quickly as we are able. Wright-Hennepin Electric Blog Why do my lights blink on and off in bad weather? Why do my lights blink on and off in bad weather? The AC power is transformer coupled, and in theory could "float" have no defined connection to anything else That's generally not in, or even particularly close to, your house.
That local transformer can serve more than one house too. The safety ground wire is tied to a ground stake directly from your main panel. This means that the voltage between "Neutral" and "Ground" should generally not be too large less than 5 V typically , but it won't be zero, will depend on how much current is being drawn, and will flop around.
Again, none of the power current should return on ground. The ground line is there so that the appliance whatever can have a metal shield tied to earth ground, and IF there's an electrical breakdown to the shield, the fuse s will blow. If the appliance is below a certain power level AND has a fully insulating housing to 2 kV, and meets certain fire requirements, then it can be two-prong, without the metal shield and ground return. What this means is that if you get zapped by either of those phases alone, it's basically identical to getting zapped by the black lead of That is more dangerous.
But a load can't tell the difference as long as insulation is adequate for all chassis breakdown paths, and even NA requirements force that because they know that appliance might be exported , you just switch connectors. It's only the differential voltage which matters. Explaining how Three-phase power is transmitted and then transformered to 2-phase for your small loads is more complicated AC coupling, with out and return lines which run close to each other nearly "coaxial" is very important to prevent long lines from becoming big loop transformers for magnetic transients.
Solar flares which whack our magnetosophere can induce big loop currents in anything which has a conducting loop with any significant cross-sectional area. This includes huge currents in the earth actually, with very large voltage differences from place to place.
If you tried to do what you propose, the lines would see gigantic currents every solar flare. Even with the "fairly close" returns you see on long-distance power transmission separated far enough they have good safety for air breakdown solar flares sometimes knock them out due to magnetic induction of loop current. It takes a lot of power for the government to control the weather. One thing, some power transmission to remote locations do use "ground return" on the primary side of the transformer.
The customer side will be a standard transformer winding, either single phase or center-tapped with a non-current-carrying safety ground. It certainly isn't the standard practice, though. BadAndy, you're right for the most part, but some nitpicks: quote: Originally posted by BadAndy: Ground is absolutely NOT "the other half of the circuit" though No, the neutral conductor is bonded to ground at the main service panel in your house but not at any sub-panels further downstream.
This is in the NEC. There are three cables, ground is fictional. It is NOT the ground ground, but measured relative to the three cables. Should I try to explain complex power? The paragraph wouldn't have made any sense whatsoever. Besides, even thinking you could have a "jiggling" connection is a hugely gross error. I have plenty of jiggling electrical connections, though. We have one socket in my office at work that loses contact if you plug it in all the way.
You have to put the plug in, then let it dangle out a little bit to get power It insults my existence as an electrical engineer. And I've made plenty of loose wire connections too, but let's be honest, common sense should tell us there's a large difference between the "little" wires in a house and the "huge wires" in a power line.
Besides, most people's experience with loose connections would find them being intermittent all the time, not just when the weather is unfavorable. It might be used for some industrial loads etc, but I would expect they are rare, and possibly archaic.
Even if the long-distance power distribution is SWER, the local loads are transformer coupled to the SWER line duh, need to be , and "in your house" applies from there. I'd forgotten that, but you're strictly correct. There's been considerable controversy about it too. This is one of those nasty issues though where there's very legitimate dispute about what makes physical sense, and there's a lot of practice out there which doesn't obey this However, if you observe that the flickering lingers longer than usual, there may be something else in play.
Strong winds shake main line connections outside, and this may affect the steadiness of power supply to your home. A powerful lightning strike or thunder may also jolt the main power supply and affect its flow towards houses. Here are some effective techniques to fix the issue and prevent it from recurring, especially during bad weather conditions:. Knowing which lights are flickering can give you an idea where the problem is.
If a single bulb is flickering, you may have the power line to that portion of your home checked. If most or all of the lights are flickering like crazy, it could be an issue with your main electrical panel or unit.
You may want to consider updating your electrical outlets or upgrading your entire system. The best remedy to address flickering lights is to have an expert look into the problem. Although you can always DIY your way into electrical maintenance, electrical contractors have a significantly wider breadth of expertise to troubleshoot most issues in residential areas. You can never bee too careful when talking about your home electrical setup.
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