hi , i have this problem with my house lights, when i used a power tool that draws alot of current, my ligh?
hi bob, i have this problem with my house lights, when i used a power tool that draws alot of current, my lights blink or dim. first things first the electrical breaker that is used as a safety measure, i personally think is below the required ampage and another thing i use a transformer(internal) to break down my voltage, which is 120v. i have check the panel box for loose connections ,none was found. i haven’t check the connections to the transformer, cause it looks well tape and seal. what seems to be the problem or what do you suggest?
my main supply is 220v, the ampage of the breaker is 30amps, which is used as a main breaker for the transformer(220v/110v), of which is then used to supply all my lights and plugs, the lights are 15amps and plugs are 20amps. another thing i have a water pump connected to a plug supply, but i use a switch to control it’s use.
the size of the wire used from my 30amps breaker is 4.0mm, which then feeds the transformer (220v/110v), but the wire that leaves the transformer, to supply the panel box is 16.0mm
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You have 15 amp circuits and 20 amp circuits. Try on that is more. Turn off some of your appliances while your working. Power tool might be shorting. hww22
Hold on there!!
You feel the circuit breaker is undersized. What do you base this on? The wire size determines the maximum current (amps) that the wire can carry. Upgrading the breaker without rewiring the entire circuit is beyond dangerous - it is just asking for a disaster which will be forthcoming and result in serious loss of life, serious injury, and major property damage. You did not provide wire size and circuit breaker rating info so we really just cannot comment but my first feelings are that the breaker is fine for the wire size.
I fail to understand the use of a transformer to reduce voltage from 120 V ac to some lesser voltage. What is the voltage rating of the equipment you have connected to the secondary side of the transformer? My fear is that the equipment is designed to run at 120 V and you are running it at a lesser voltage - which is extremely dangerous and risking equipment burn out. Please provide the justification for the transformer in the first place and identify the logic behind it. My first feelings here is that the transformer use is unwarranted but you need to explain yourself first.
Finally, I strongly believe you have at best an extremely superficial knowledge of what you are doing and addressing. Beause of this limited knowledge and the risks involved (one seemingly small error can and will kill people) you need to either properly boost your knowledge via proper technical training OR get qualified help. My strong fear, based upon what you have written, is that a disaster is very likely to happen if you continue to meddle in something you really do not understand. GTB
You didn’t say anything that would indicate to that first answerer that you have twenty amp circuits with fifteen amp breakers. Unless some idiot did the original wiring the breakers are correctly sized to the capacity of the circuit and as already mentioned, installing a higher amp breaker is courting disaster. Overloading a circuit should trip the breaker, not dim the lights. You may have a partial open somewhere. Get some qualified help to examine and test your breakers and circuits Hondu
its called a power drop, when you start the a tool it draws almost double the amps on start up,
you shouldn’t have to use a transformer to drop the 120 volts, maby that’s the problem, William B
when you start your power tools do the lights dim momentary- or do they flicker;if they dim don’t worry .the tool when started doubles the amps for a second ;its called power drop. don’t assume the undern eath the tape all is well assume the worst’ good luck; 65 roberto
Your branch circuit is overloaded. Hire an electrician to run you one or more new branch circuits to plug your tools into. This is an extremely common problem. Fortunately there is an easy fix, just don’t let any old wingnut pretend to fix this for you. Hire a professional electrician with refrences. ThatGuy…
All motor take a high demand in power to start. This causes dimming. I had to laugh at a guy that blamed the electrician for making this happen when they put in a new service. All the sudden he noticed a slight dimming in his lights. The dimming was there and he never noticed it before.
Mike Holt, a leading electrical contractor and electrical expert, found this happening at his home and did several tests. NOTHING would remedy this.
The transformer only makes one thing happen a drop in voltage or rise in voltage. The power is always the same. Since you probably have a drop transformer the wire going in is for a smaller amps once the voltage is dropped the amps increases therefore there is a need for larger wires.
I guarantee you will not stop a motor from dimming the lights. analize2much