Electrical Wiring

Try at a electrical wholesale outlet. Don't know why you would want a auto transformer. A standard 240 to 120 transformer usually does the job and it can be run backwards or forwards. 240 primary 120 output on secondary or 120 primary 240 output on secondary. Either way you will have to know the amperage of the load to get the correct size of transformer.

Metal objects such as keys, pots, and cutlery can conduct electricity. Water (if it contains impurities), wet hands, and certain types of wood can also conduct electricity. It's important to be cautious around these items to avoid electric shocks.

There is normally no neutral point for a delta connection, Star or Y connections have grounded neutral points. So earthing transformers (or grounding transformers, GT, as they're called in this part of the world), are used to provide a neutral point in an otherwise ungrounded system. Typically they are found in utility transmission systems, where the grounding transformer provides a path for ground-fault current detection on the phases. The GT is connected in a zig-zag type arrangement such that positive-sequence (phase to phase) current is minimized, while zero-sequence (unbalanced) current presents a low-impedance path to ground. Usually, a reactor or resistor is inserted between the GT neutral connection and ground to limit the fault current to a level which will cause the detection to work but not damage the transmission equipment. See the links below for a simplified connection diagram and a somewhat more complex explanation.

I am guessing that what you are talking about is a two speed motor. The motor should have 6 wires coming out of it. There are two complete sets of three phase windings for each speed. Look on the motor name plate for the wire numbers or sometimes on the inside of the motor junction box. A 2 speed 6 lead motor should have the following markings, 1U 1V 1W for slow 2U 2V 2W for fast. Also check for the two different amp draws for each winding. These types of motors should be run from a reversing type contactor assemble so that individual overloads can be used on each of the high speed windings and on the low speed windings.

I've a 4 ft diameter ceiling fan with 3 blades of std width (about 3") hanging at a distance of 9" from the ceiling. Floor to ceiling distance is 8'5". Problem is that when I stand at a distance of about 3 to 4 feet from the centre of the fan - there is no air-flow. So, area covered by fan is 8 ft dia (max). If I stand beyond 8 ft dia circle there is hardly any air flow. Same fan in another room is hanging at a distance of about 12" to 13" and it's covering area 12 ft dia on the floor with a reasonable air-flow. It seems that there is some co-relation between height of fan from ceiling and area covered below it. Any idea? The distance from the ceiling is of little importance unless ceiling is very tall. Size of fan, width of blades makes the difference. Pitch of the blades The angle, or pitch, of each ceiling fan blade is also a determining factor in how efficient a ceiling fan will be. The angle of the blade affects the amount of wind resistance and the fan's ability to blow the circulated air downward. You can find more info on this website: http://www.ceiling-fan-wizard.com/ceiling-fan-blades.html

As long as you don't over load the wall socket you can have a mile's worth of extension cord.

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You can not have a miles worth of cord as the voltage drop would be so high on a #14 wire that there would not be enough voltage to run the computer. Make sure that the extension cord has a ground wire in it so that the ground wire is continuous from the receptacle to the surge protector to the computer.

Electrical insulators are made from materials that are poor conductors of electricity. Metallic elements are good conductors, non metallic elements are poor conductors. Some materials used as insulators are, paper, glass, ceramics, rubber and plastics.

To find out what the wattage of your stove is look at the nameplate or check the specs. from the manual that came with it. Watts = Amps x Volts. Hypothetically your stove should be fed with a 40 amp breaker. The maximum wattage on the stove will be 40 x 240 = 9600 watts. As you can see different manufactures and different models will all be different.

Volts Alternating Current, range from a transformer and sometimes the distance of the transformer providing the volts may cause a range anywhere from 110vac to 130 volts alternating current. as long as you are within this range what ever you have should run with what voltage is provided. Yes it is all the same, it just varies.

There is no such thing as a white LED.

You produce white light from LEDs by combining red, green and blue LEDs.

Red LEDs were produced first because red is a low frequency of light. It was the easiest to make.

Green LEDs were produced next because green is a higher frequency of light. It was harder to make.

By combining red and green LEDs, you can produce yellow light.

Blue is a very high frequency of light and is very hard to produce. Blue LEDs and blue lasers (as in BluRay) took a great deal of effort to create. LED technology and some kinds of laser technology are very closely related.

Water containing dissolved ions or impurities conducts electricity well. This is because the ions in the water carry electric current. Pure water, without ions, does not conduct electricity well.

Watts = amps x volts. 1000/120 = 8.3. Assuming the oil burner motor is 120V then the generator has the ability to produce 8.3 amps. Find the amperage on the burner pump motor, if it is in this range it will work. The closer the pump amperage is to the generator output the more effect it will have on slowing the generator down on the start. Motors draw up to 300% on start up, this is what makes the generator lag when a motor is connected as a load.

There are a couple of catagories for plug descriptions. Straight blade and twist lock blade. The amperage and voltage rating is embossed on the plug (trade name for plug is cap, wall part receptacle). See related links for a chart.

The measure of how difficult it is for charges to flow through a material is called electrical resistance. It is quantified in ohms and is determined by factors such as material composition, dimensions, and temperature.

The human ear can typically detect sound waves with frequencies ranging from 20 Hz to 20,000 Hz. Sound waves with frequencies below 20 Hz are infrasound, while those above 20,000 Hz are ultrasound, which are not usually perceived by humans. The audible range of sound waves varies among individuals due to factors like age and hearing health.

The National Electric Code is updated yearly and is usually adopted by a locality some years after release. You can check with your local license and permit office what version is in effect in your locale or ask an electrician. It contains the rules for all types of electric work.

In the United States, the NEC is updated every 3 years on a very strict schedule and it is adopted by local jurisdictions at their discretion. It is not a government document until it is adopted by someone. The most recent update is the 2011 version. I know that Master Electrician tests are not yet based on it. Depending on the jurisdiction you may find a version as old as the 1999 NEC still in effect.

The chemical gradient refers to the imbalance of substances across the membrane. The Electrical Gradient refers to the difference of charges between substances on different sides of the Membrane. The Electrochemical Gradient refers to the combination of the previous two gradients. The short answer is MEMBRANE POTENTIAL.

Power technicians work safely with electricity by wearing protective gear such as gloves, goggles, and insulated clothing. They follow strict safety procedures, including de-energizing equipment before working on it, using lockout/tagout procedures, and testing circuits to ensure they are de-energized. They also receive extensive training on electrical safety practices and are aware of potential hazards to minimize risks.

Most areas in the US must comply with ADA, the Americans with Disabilities Act. This means switches and other devices with operable controls go 48 inches AFF (above finished floor), measured to the switch handle (which means to the center of the box). This is the maximum height permitted by ADA. Receptacles don't seem to have a real standard, I have seen from 12 to 18 inches where I work. If there are existing recepts in the building, we match those. At my house, for instance, they are set 12" to the top of the box.

There is no conversion. They measure different things. It's like asking 120 miles equals how many pounds?

Voltage is also called electric potential. In a water analogy it's like pressure.

Amperage is also called electric current. In a water analogy it's like flow rate.

An electric discharge can occur quickly or slowly depending on the conditions and the amount of energy involved. For example, a lightning strike happens quickly, while the discharge in a fluorescent light can be slower.

Not if it is designed and installed properly. Even if you overload a circuit, the most that should happen is a tripped breaker. Panels are designed such that even fault current from a direct short, which can be tens of thousands of amperes, will be safely interrupted. All bets are off however, if the panel has been tampered with or improperly designed or installed.

Electrical energy can be changed into chemical energy through a process called electrochemical reactions. This conversion occurs in batteries or fuel cells where electrons flow through a circuit, creating a chemical reaction that stores or releases energy.