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Electrical Troubleshooting
Electrical troubleshooting involves checking and resolving an electrical problem (such as when an electrical device stops working correctly). Common troubleshooting practices include checking if the power is on, the bulb has burnt out, or the breaker tripped.
885 Questions
What can you do to use less electricity?
- walk or ride a bike instead of riding the car.
- turn off the lights when you leave the room
- don't leave the tap running
- take shorter showers
- watch TV for shorter amount of time
- unplug the things you're not using
- use a power bar
:)
Was there electricity in 1787?
Not as we know it, but Benjamine Franklin, in a famous 1752 experiment, he flew a kite with a key attached to prove that electricity exists in the atmosphere. Electricity existed chemically (batteries), and by static electricity. At that time they did not know how to produce electricity with magnets (generator).
If the wire shorted out, it's possible that other components in the range could have been damaged as well, such as fuses, circuit boards, or heating elements. It's important to have a professional inspect the range to determine the extent of the damage and make the necessary repairs. Using the range without addressing the problem could be a safety hazard.
How many amps does a single phase 115 volts 1 hp 60hz pump draw?
Since one horsepower is 745 watts, a 115 volt 1 hp motor would pull about 6.5 amperes, depending on power factor.
Note:
That may be a theoretical value. However, practically speaking, single phase A.C. motors are notoriously inefficient. That is the reason the National Electrical Code lists the full load current of a 1 HP, 115 volt motor at 16 amps. That value is considered nominal and can vary depending on motor design. That value does not begin to factor in inrush current.
The best advice is to utilize the manufacturer's motor nameplate value.
How do you identify a hot or ground wire that is exposed?
To further ID the wires, use a voltmeter.
Measure between the Neutral and the Hot and you should have current (120 Volts?).
Measure between the Hot and Ground and you should have the same current. Between the Neutral and Ground there will be no current.
If you don't have a voltmeter, you can use a lamp rated for the current in the wires you're trying to ID (ie, a 120 volt lamp if it's a 120 volt circuit).
Wire the lamp between the Hot and Neutral, and it should light up.
Wire the lamp between the Hot and Ground, and it should light up.
Wire the lamp between the Neutral and Ground, and it should not light up.
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Some people will define the cause of an electrical fault as a "short circuit" but that is too simple an explanation because it doesn't explain how it is caused.
An electrical fault is the name given to any situation where some electrical current goes where it was not intended to go.
This situation can be caused by damage to the protective insulation around a wire - or around some other part - which puts the wire or part in contact with a different wire or part that it was not designed to touch because a difference in voltage has to exist between them to allow an item of electrical equipment to do its work.
If an item of electrical equipment gets dropped accidentally - or if something else hits it violently - that action can easily damage the insulation material or close an air gap that was designed to keep two parts electrically separate within that item of equipment.
Another way an electrical fault can be caused is by physical deterioration of some insulation. Such deterioration can be caused by many factors such as, for example, the temperature of the equipment being too high or if some unprotected equipment is exposed to wet or damp conditions. Such factors can put stresses on the insulation which it was not designed to withstand and it breaks down and causes an electrical fault to occur.
If an item of electrical equipment (or an electrical wiring circuit which connects different pieces of equipment together) is properly designed, then, if an electrical fault occurs, protective circuit breakers should trip and/or fuses should blow to stop the flow of any excessive current that is the result of the electrical fault, thus helping to prevent any fires and/or explosions from happening because the fault occurred.
Genetic recombination is the process by which a strand of genetic material (usually DNA; but can also be RNA) is broken and then joined to a different DNA molecule. In eukaryotes recombination commonly occurs during meiosis as chromosomal crossover between paired chromosomes. This process leads to offspring having different combinations of genes from their parents and can produce new chimeric alleles.
Genetic recombination is the process by which two DNA molecules exchange genetic information, resulting in the production of a new combination of alleles. In eukaryotes, genetic recombination during meiosis can lead to a novel set of genetic information that can be passed on to progeny. Most recombination is naturally occurring. During meiosis in eukaryotes, genetic recombination involves the pairing of homologous chromosomes. This may be followed by information exchange between the chromosomes. The information exchange may occur without physical exchange (a section of genetic material is copied from one chromosome to another, without the donating chromosome being changed)(see SDSA pathway in Figure); or by the breaking and rejoining of DNAstrands, which forms new molecules of DNA (see DHJ pathway in Figure). Recombination may also occur during mitosis in eukaryotes where it ordinarily involves the two sister chromosomes formed after chromosomal replication. In this case, new combinations of alleles are not produced since the sister chromosomes are usually identical. In meiosis and mitosis, recombination occurs between similar molecules (homologs) of DNA. In meiosis, non-sister homologous chromosomes pair with each other so that recombination characteristically occurs between non-sister homologues. In both meiotic and mitotic cells, recombination between homologous chromosomes is a common mechanism used in DNA repair.
Genetic recombination and recombinational DNA repair also occurs in bacteria and archaea.
Recombination can be artificially induced in laboratory (in vitro) settings, producing recombinant DNA for purposes including vaccinedevelopment.
V(D)J recombination in organisms with an adaptive immune system is a type of site-specific genetic recombination that helps immune cells rapidly diversify to recognize and adapt to new pathogens.
Some 9 V adapters rated for 1000 mA will provide 9 V at 1000 mA. If you use it on a 200mA device the voltage may go up to 10-15 V and if that device can not handle the higher voltage, it it could burn out. Better adapters will only put out 9 V exactly and have no problem. Be careful of revere polarity where the positive on one is the negative pin for the other adapter.
Can you run a 220 volt 1 horse motor with batteries?
Yes, you can run a 220 volt 1 horsepower motor with batteries by using an inverter to convert the DC power from the batteries into AC power that the motor can use. However, the size and number of batteries needed will depend on the motor's power requirements and the duration for which you want to run it.
Is 10mm cable safe for 50a breaker?
No, a 10mm cable should be used with no more than a 40A breaker for typical household wiring. Using a 10mm cable with a 50A breaker can lead to overheating and pose a fire hazard. It's important to follow the proper cable size guidelines to ensure safety.
What could be the cause of arcing between the buss bar and a breaker?
Arcing between the bus bar and a breaker could be caused by loose connections, excessive load on the circuit, corrosion or physical damage to the components, or poor installation. It is important to investigate and address the root cause promptly to prevent damage and ensure safety.
How do you de energize an electrical circit?
To de-energize an electrical circuit, you should turn off the power source by switching off the circuit breaker or removing the fuse associated with that circuit. Additionally, you can unplug the device or equipment from the power outlet to ensure that the circuit is not energized. Always use proper safety measures and equipment when working with electrical circuits to prevent accidents and injuries.
When a shunt trip breaker trips does the voltage remain on?
No, it does not have voltage in trip position.
No guarantees but try this connection. The white (neutral) from the power supply is common to both start and run windings. The black "hot" wire connects to a common side of the start switch. This means that the "hot" wire can supply voltage to both sets of contacts on the start switch. The switch's contact should be in the normally closed position. A wire should come out of the normally closed contact and be connected to one side of the capacitor. From the other side of the capacitor a red wire should connect to the start winding. The other lead coming off of the start switch goes to a black wire that connects to the run winding. This should be in the normally open position when the motor is not running. The start switch is a centrifugal switch that changes contact positioning after the motor starts to revolve. This in effect opens the start winding and closes the run winding.
A open hot, is simply a broken connection on your "hot wire" or the wire that carries the voltage from your breaker to your device. Typically these connection are broken either at the device e.g., outlet, switch, etc. or they are cause by a poor connection in a wire nut.
First find the current which is 250/12 = 21A rounded off. So you would need 6 of the batteries in parallel to get a bit more than 1 hr and probably 11 batteries in parallel would provide around 2 hours of operation. This is not precise since the power supply wouldn't always consuming 250 watts of power.
In a Chinese cable with brown, blue, and white wires, the brown wire is typically the live wire, the blue wire is the neutral wire, and the white wire is the earth wire. It is important to double-check with a qualified electrician or follow local regulations to ensure safe wiring practices.
static electricity is used for powering light bulbs in homes.
How do you hook 2 12 volt batteries together together to get 24 volts in a positive ground tractor?
Connect the positive terminal on one battery to the negative terminal on the other with heavy wire and battery clamps. Connect the remaining positive terminal to the metal chassis of the tractor, and run the remaining negative wire to the items to be powered, with any luck at all, through a fusebox.
Where does most of the electrical energy we use come from?
Most of the electrical energy we use comes from power plants that generate electricity by burning fossil fuels like coal, natural gas, and oil. Additionally, a growing percentage of electrical energy comes from renewable sources such as wind, solar, hydroelectric, and biomass.
Working principle behind a hair dryer?
A traditional hair dryer evaporates water from your hair using a stream of heated air blown into the hair. The temperature and time of drying must be carefully controlled to avoid damaging the hair shafts. Newer hair dryer technology uses electrical charges (ions) to strip water molecules from your hair, which reportedly is faster and less likely to damage hair (split ends, frizzy, dull). Reportedly it removes moisture from the surface of the hair while leaving some moisture within the hair shaft for improved sheen. Some manufacturers claim that using crystals of the mineral tourmaline in the construction of the dryer produces a superior electrical charge, while using ceramic heater elements produces superior hot air, so the latest high-priced dryers boast "Ceramic Tourmaline Ionic" technology.
A circuit home run is a baseball term used to describe a home run where the batter hits all the bases without stopping. It is also known as an "inside-the-park" home run.
If two 2-volt batteries are connected in a series how many volts are available to the circuit?
The formula you are looking for is Vt = V1 + V2.
Why might an overloaded outlet cause a problem?
It's not the outlets themselves which are the problem, it's what might be plugged in to them. The more outlets, the more loads that can be added to the circuit. Having lots of outlets simply increases the opportunity to add loads, and ultimately, to overload the circuit. Overloads, as you may know, can result ultimately in fires with attendant loss of property or even lives. Of course, if only small loads are plugged in to the outlets, and/or if many of the outlets are unused, then there would be no problem -- except possibly for one: you need to make sure your installation is "up to code"; that is, it complies with the laws and regulations that apply to your electrical wiring. In the USA, a good place to start if you have questions about code requirements is http://www.nfpa.org/freecodes/free_access_agreement.asp?id=7008SB This site gives you free access to the 2008 National Electrical Code.
In a parallel circuit, Voltage is constant through out the circuit. Thus, the voltage across each lamp is 6-volts.
