What are the duties of an electrician?
The duties of an electrician are to work in commercial industrial or residential settings. They usually install, repair, and maintain electrical systems.
AnswerA general electrician should be able to run conduit of all types, figure loads and wire sizes. Read blueprints and deduct the proper needs thereof. Use a variety of hand and power tools. Make good decisions with out all the information one needs, meaning to be a good guesser. A service electrician will need to be able to do all of this and more. They also have to be able to reverse engineer entire electrical systems in order to trouble shoot said system.How does a speaker make sound?
By changing the electrical energy into sound energy and creating vibrations in the air.
Yes rewire it
It is a the current drawn by the application that is connected to the power source
What does grounding a connector mean?
"Grounding a connector" means you join a connector in a circuit to another point in the circuit that is definitely at ground potential.
This is done mainly when testing a circuit, to be sure that a particular point in that circuit really is at ground potential if you are not certain that it is already.
Alternatively, you could be doing a test to temporarily ground a connector that is not normally at ground potential, to see what effect doing the test has on the behavior of the circuit.
How do you get two different voltages using the delta - star connection?
A star connection is where the three phase nonpolarities are tied to a single point, and very often grounded. A delta connection is where the nonpolarity of one phase is tied to the polarity of another phase, forming a greek delta shape. If measuring from polarity to nonpolarity on a single phase, in the star formation you are looking at L-N voltages; in the delta connection, you are looking at L-L voltages (L-N voltages * square root of three).
Four (4) 0.6 Henry inductors connected in series should add up to 2.4 Henry. An electrical event passing through one inductor in time "T" will require "4T" to pass through all four inductors. Hence, inductance adds up in a series of inductors connected end to end.
Why would the voltage drop to 105 in one outlet in your old mobile home?
Check the voltages on the other receptacles in the home. If you find other lower voltages go back and shut that breaker off. Go through out the house shutting off the breakers that have low voltage on them. If other ones are lower see if you can establish if the voltage drop is on the same bus breakers. These will be every alternate breaker. If the breakers that you shut off are every other breaker then the problem is with the incoming utility supply. Give them a call and get them to read the voltage at the meter base. If you can not find any other low voltages in the home then shut the breaker off to that circuit and change the receptacle out for a new one. If the voltage is still low after replacing the receptacle, it could be the breaker that is feeding that circuit.
Can a generator be installed indoors?
Yes, many generators are installed indoors. Any where that requires standby power have the generators in a room especially designed too accommodate them. Hospitals, sewage treatment plants water treatment plants to name a few all have generator backup. The major consideration when generators are installed indoors is that they have the proper ventilation. A full free controlled flow of outside air for cooling and combustion purposes is a must. The most important aspect of an indoor generating system is the venting of the exhaust system to the outside of the building in which the generator is housed. This exhaust system should not be in close approximation to the incoming flow from the outside cooling air. This is to prevent carbon dioxide from the engine's exhaust being drawn back into the building.
How regulator control the speed of fan?
Fan regulators are similar to light dimmers. Their function is to control the speed of the fan. The regulator uses resistances for the speed of the fan. It acts as a divider and the speed changes based on the resistance.
What causes electricity to occur?
Electricity can be a simple as charge movement. That's a basic definition, and it can be expanded from there. But in its essential form, anything that can generate a voltage can "cause electricity" as a result. Let's look at things that generate a voltage. Triboelectric effect, a form of contact electrification, generates a voltage and causes charge movement by the simple act of separating two materials. (Anyone who takes a piece of plastic wrap off a roll causes this. That's where the static charge on the wrap comes from, and that's why it is a challenge to "make it behave" when trying to put it on something. Piezoelectric effect is the generation of voltage by applying mechanical energy to certain crystals or possibly ceramics. Pyroelectric effect. Heat causes charge movement, and this phenomena is directly related to Piezoelectric effect. Thermionic effect causes charge movement in response to thermal energy, to heat, but is different from pyroelectric effect. Photoelectric effect is the generation of a voltage by the application of photons (light) to a photosensitive material. Electrochemical action is what batteries are all about. Electromagnetic induction is extremely common. We use it everywhere in motors and generators as well as a broad variety of other things. Got links if you want them. They are to related articles posted by our friends at Wikipedia, where knowledge is free.
A 555 time circuit is a circuit chip that can be used for a variety of applications. some include: clocks, time delays, countdown timers, and other time-circuits.
How much electricity used by a seed dryer?
A voltage and amperage need to be stated to answer this question.
The NM represents the type of sheath on the cable. NM stands for Non Metallic sheath cable..
Show me the us military canteen styles?
During the 19th century (1800's) the US Army had a circular shaped canteen (flat and round) with "US" inked onto the canteen's cover. In the 20th century (1900's) the US Army had a 1 quart aluminum canteen, shaped like a water bottle, but indented on one side (appearing to form to a man's hip, but probably to make it easier for a man's hand to better grasp the canteen). During the Vietnam War, this same aluminum 1 quart canteen became an olive drab colored plastic canteen. In about 1970, GI's in Vietnam were being issued the new plastic 2 quart olive drab colored canteen; square shaped with the cap on one of the corners of the square. All cloth canteen covers had the letters "US" inked onto them.
Basically, an inductor is a coil of wire. The core of the inductor, the material it is would around, could be air, ferromagnetic material, or something else. The windings of the coil are usually copper wire, and they are coated with some kind of insulator, often enamel. It has two terminals, one at each end of the coil. Let's hook it up and see what happens.
When we apply a voltage to the coil, current will want to move through the windings. But the instant that current wants to start moving, that current will want to form a magnetic field around its path of travel. This is a fundamental concept as regards moving charges; they always form a magnetic field around their path of travel.
As the magnetic field begins to form, it will start to expand around the wire. As the field expands around one wire, that field will expand "across" other windings. Each winding will have an expanding magnetic field that "sweeps" or expands across all the other windings. As the expanding magnetic field around each wire sweeps all the other windings, it induces a voltage in those windings that opposes the voltage applied to the coil. The action of the opposing magnetic field wants to stop or prevent current flow. This is at the heart of how an inductor works, and this is the principle of induction in action. Let's follow through and tighten things up.
As the field expands and generates (induces) that opposite voltage, the inductive action will limit the ability of the windings to conduct current flow. Eventually the current will flow, but only after a bit of time. There is a "delay" between the application of voltage to an inductor and that inductor's ability to pass current through itself. This is why we say that current lags voltagein an inductor. The current only flows "later" after the voltage rises and peaks. The delay spoken of here is only very brief, but when we apply AC to an inductor (pure inductance), the current will lag the applied voltage by 90 degrees.
When voltage across an inductor peaks and falls off, the magnetic field that had built up will collapse. As this field collapses, it will again be sweeping all the windings in the coil, and will induce a voltage that wants to keep current flowing the way it was flowing already. The inductor is "resisting" a change in the current flow through it. And this is a fundamental characteristic of an inductor.
And inductor is a device that resists a change in current flow throught it. And current flow through an inductor will lag the applied voltage by 90 degrees in AC circuits, provided there is no resistance in the circuit. This is boilerplate electronics, and the electronics student will see this information in some form on a test.
A Polarized capacitor means that the capacitor is polarity sensitive. if you were to connect the capacitor incorrectly the capacitor would blow up. A capacitor that is marked as being polarity sensitive will have the negative lead labeled usually with a white strip. These capacitors can only be used in conjunction with a dc source. Always consult a professional when installing electrical equipment.
You didn't mention whether the voltages are single phase or three phase or whether it is a commercial machine or one used in the home. I am assuming that you are asking about a single phase washer. That being said yes, 208 volts can be stepped up to 440 volts. To have the washer converted would mean finding a 440 single phase motor with the identical frame type that would fit the same configuration that the 208 volt single phase motor now resides in. The control voltage for the internal controls would also have to be changed out to the new voltage. The transformer would cost as much as a new machine so that is out of the question. You might want to price out a new 440 volt machine, sell the old 208 machine and the money that you get for the old machine, apply it to the cost of the new machine.
An appliance cable or "flex" outlet is a type of electrical outlet which is NOT a "socket outlet" to take plugs for appliances so that they can be plugged and un-plugged.
An appliance cable or "flex" outlet has terminals inside it. The terminals allow the wires in an appliance cable or "flex" to be connected to the household wiring in a building.
The household wiring comes from the building's main electrical power panel, which carries the main circuit breakers. The circuit breakers are fitted to protect the household wiring from catching on fire if any circuit is overloaded.
Such appliance cable or "flex" outlets also have strain-relief clips. A strain-relief clip helps to prevent the cable from being yanked out of the outlet if the appliance gets moved away from the wall where the outlet is installed.
Such outlets, with terminals inside and strain-relief clips, are used for fixed appliances, such as ranges or dryers, which should never have to be un-plugged during normal use of the appliance by the user.
What is the difference between a potentiometer and a rheostat?
The fundamental difference between a potentiometer (pot) and a rheostat is that the former is a three terminal device, while the latter is a two terminal one. Let's look at both. When we consider either device, we are looking at a resistive element with a "wiper" or "adjustable contact" to which we can attach a wire. The only difference between the two devices is that the resistive element can have an electrical contact (terminal) at both ends or at just one end. The pot has terminals at each end of the resistive element, and the rheostat has a terminal at only one end. Lastly, a pot can be used in place of a rheostat, but not the other way around. Use the links to check facts and lock in the ideas.
Why is it not okay to use a fuse with a higher amperage rating in an electrical circuit?
The fuse is supposed to be the weakest link in the circuit. The circuit is rated to handle a specific load current. The wire and insulation rating of the circuit is governed by this specific load. If this load malfunctions and the load current becomes higher that what is specified, the fuse is there to break the circuit. A fuse of a higher rating than what is called for will allow a higher current to flow through the circuit which could cause the insulation on the wire to melt, the wire to burn open or components in the circuit to become unusable. Never over fuse an electrical circuit with a larger amp rated fuse.
yes but voltage will be out a little.
This ok for something like a heater which wont care.
But for an electric motor starting and overheating maybe a problem.
In the US this would be 220v single phase and 208 volts 3 phase.
How do you calculate no-load current and load current?
Full load current can be calculated by the formula given below: P=SQUARE ROOT OF 3*V*I*POWER FACTOR P=1.732*V*I*PF suppose 3 kw motor three phase voltage assuming .85 power factor and 415 volt full load current will be 3*1000=1.732*415*I*.85 I=4.9 ampere(full load ampere)
What is the formula to calculate the overload setting for a star delta starter?
Full load current ofthe motor x 0.58