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Electrical Wiring
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A capacitor-start system will limit the current drawn by an induction machine by correcting the devices poor power factor during the start up. This limits the current needed to start the device without using any real power.
A resistance-start system will limit the starting current by drawing current unto the resistor instead of the induction machine. The real power used by the resistor is turned into heat and lost.
A capacitive-start system will use no real power and will not create excess heat, it will be more expensive to initially purchase.
Well, try again with the 120v and if it still doesn't work, call Nintendo and if they have a warrentee for you, it'll be free to get it fixed. But, if you can't fix it, it's broken, obviously.
If it was smoking, it is broken. Do not plug it back in!Take it for repair or get a new one.
What are switching stations power cables and lines?
A switching station is used to switch high-voltage power into different routes (cables and lines) or, as loading changes during a day, into different transformers in the switching station. Also a switching station is needed to be able to isolate (switch off) a route for maintenance work that can't be done while the cables and lines are "hot".
In the power distribution industry the engineers talk about "cables" going underground or undersea and "lines", hung from big insulators, carried by big steel towers that go across the countryside.
In electrical engineering applications a "wire" is usually a relatively thin conductor, most often made of Copper and usually protected by insulation.
An electrical "power cable" usually contains more than one conductor. A typical power cable would have 3 "hot" Phase conductors and sometimes a Ground too.
An electrical "power line" is most often a single thick conductor having a steel "core" for strength. The core is wrapped in copper, or an alloy of it, for good conductivity. A power line is used to carry a single Phase or a Neutral, and is not usually covered in insulation.
In power distribution engineering a "power line" is never confused with a "power cable" as it helps to keep those technical terms distinct when describing a power distribution network.
You have 240v and you need to convert to 230v for an air compressor?
Yes, you can use a 230 volt device on a 240 volt supply.
A problem with parity error indicates a problem with?
Parity error indicates bad memory. Parity checks compare the memory read with what was writen.
What do the difference sizes allow between the various sq mm wires?
The different sizes allow for different current capacities to be carried by the wire. The larger the size, the more amperage capacity is allowed. The question refers to the metric sizing of wire. North American wire sizing is still done in AWG.
When many resistances are connected in series, the equivalent resistance is
greater than the greatest single resistance.
When many resistances are connected in parallel, the equivalent resistance is
less than the smallest single resistance.
Why floating neutral in a three phase supply is undesirable?
Floating neutral in 3 phase supply is undesirable as if the same thing occurs then there will be bad effect for all single phase equipment which we are using as phase to neutral voltage will exceed from its normal value and it will harm the equipments.
How many batteries will it take to make 120 volts?
It depends on the terminal voltage of the batteries, as different types of battery (or, more accurately, 'cell') have different terminal voltages.
A car battery has Approx 12 V, so ten of them.
Why is copper used to make wires?
Copper has very high electrical conductivity, low resistance, good tensile strength and ductility, and is normally not brittle. Other materials with higher conductivity are either too expensive (like gold) or too brittle to be good candidates for wire.
What is an electrical star delta configuration?
A star configuration of the windings in a 3-phase transformer or motor is where one end of each winding is connected to form a star or 'Y' pattern and the other ends are each connected to one of the three separate lines of the incoming 3-phase electrical service.
A delta configuration is when each phase winding of a three phase transformer or motor is connected to its two adjacent phase windings to form an arrangement that looks like the Greek letter delta - or triangle - and then each point of the triangle is connected to to one of the three separate lines of the incoming 3-phase electrical service.
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To be able to wire a 3-phase transformer or motor either in star or delta, all 6 ends of the three sets of coils, called "windings", have to be exposed with suitable connection terminals.
The windings are often labelled A1, A2, A3 and B1, B2, B3, where "1", "2" and "3" denote the separate phase windings and "A" and "B" denote the beginning and end of each winding.
Another way of describing it is to say that the separate windings can be labelled:
Winding 1: A1 <---> B1. Winding 2: A2<---> B2, Winding 3: A3 <---> B3.
In star configuration either all the A's or all the B's are connected together and the 3-phase supply (consisting of three separate "phase lines" labelled L1, L2, L3) is connected to the remaining three connectors. For example, if you connect B1 to B2 and B2 to B3 to form the center of the "star" then you must connect supply L1 to A1; supply L2 to A2 and supply L3 to A3.
In delta configuration, connect B1 to A2, B2 to A3, B3 to A1. (If you draw that out as a schematic diagram, it will be a triangle.) Then connect supply L1 to A1; supply L2 to A2 and supply L3 to A3. (Exactly the same as the supply lines were connected before, for the star configuration.)
For more information see the answers to the Related Questions shown below.
What is more powerful a 1000 watt motor or a 220 volt motor?
Apples and oranges. You need to compare power ratings to power ratings, not power rating to voltage rating. The bigger one (probably) wins.
If you have a device of 1 KW, if this device work during an hour, this device will consume 1 KWH. If the device works during 15 min, it will consume
1KW(15 min/60 min)= 1(1/4)= .25 KWH. That is you will obtain(get?) KWH on the following way: KWH = time in hours X KW
What is the size of cable for 5 tons ac with three phase supply?
The size of cable required for a 5-ton AC unit with a three-phase power supply will depend on factors such as the distance between the AC unit and the power supply, the voltage level, and the specific installation requirements. It is recommended to consult a qualified electrician or electrical engineer to determine the appropriate cable size to ensure safe and efficient operation.
How many windings does a single-phase transformer have?
Generally a single-phase transformer will have twowindings. One of the Low voltage side and one on the high voltage side. North-American distribution transformers will have three: one high-voltage winding, and two low-voltage windings connected in series.
However...
...a single-phase transformer can also have several primary and several secondary windings. The primary windings can be connected in series or in parallel with each other, as can the secondary windings. For example, taking the primary winding as an example, it could consist of two 120-V rated windings: if connected in series, it could be supplied with 240 V without exceeding its voltage rating; if connected in parallel, it could be supplied with 120 V without exceeding its voltage rating. Multiwinding single-phase transformers allow for a variety of connections.
Why does tungsten heat up and copper doesn't?
It has a higher resistance to the flow of electricity. Pushing a current through it will create heat.
Tungsten is only about 3 times the resistance of copper per same cross sectional area and length. Copper will heat up as well given enough current. If you think about a 60 Watt incandescant bulb operating at 120 VAC it draws 1/2 an amp and the metal filament must be 240 ohms in resistance. If you examine the filament you'll see it is a coil of wire so that the required length can fit into smaller space. If the filament were made of copper you would need 3 times the length of wire to get the same resistance.
How many mA does it take to be in a life threatening situation?
10-15 ma
10-15 ma is correct, but that's 10-15 across your heart, your skin uses up some, and you have to have enough voltage to get it through your body. Your skin does not conduct electricity well, but if you have a cut much less energy is required.
two windings on the stator
