Industrial Electricity and Electronics

Only if you want very dim orange light instead of white light, as the 240 volt bulb will operate at only one quarter its power rating when operated at 120 volts. But its life will be greatly increased.

Inventor(s): Lin; Tak-Huei (Taipei, TW) http://www.patents.com/Tube-light/US5113329/en-US/

In a metal halide light, the electricity heats a metal filament to a high temperature creating an extremely bright light. Metal ions burn off. A gas of the halide group (chlorine, bromine, iodine) reacts with the metal ions that have burned off and redeposit them on the filament. Because the filament is constantly being rebuilt, it can be brighter than a regular light bulb. Also it heats the gas to the point where the gasses give off light. So both the filament and the gasses give off light.

With a mercury vapor light, mercury vapor is heated until it gives off ultraviolet light. The filament only serves to heat the mercury. It does not give off light. This light is used to excite phosphrus and other chemicals on the edge of the bulb. Those chemicals glow in the visible light spectrum. As a result, they illuminate.

To hook up a 120 volts outlet, use a new outlet that is a protected type. It must be GFCI or be wired into a GFCI-protected circuit in an unfinished basement, bathroom, or garage that has damp areas.

I assume you have something like a V12 with two banks of 6 cylinders each fed with a separate coil. I suggest you pull the lead off one of the plugs (with the engine off, naturally) and push a big nail inside the plug lead. Hold the end of the lead between two pieces of wood to insulate it and start her up. Point the nail as close to the spark plug as you can without touching it (or to any clean point on the engine block, like a bolt head you have sanded shiny) and see if you get a rhythmic spark (or any spark at all). No spark = no electicity. It doesn't actually prove the COIL is faulty because it might be that the coil is not getting any electricity supplied to it, but it's a start.

Solar energy is heat the sun delivers to a surface. Photovoltaic energy is electrical energy a cell or group of cells delivers, in Volts and Amperes, to a load.

I'm sure you could, but it wouldn't be practical. The reason for this is because 208 volts between two phases comes from a three phase transformer, while 240 volts phase to phase comes from a single phase, center tapped transformer. If you're asking regarding a resistive load, such as a heater, the load should work with 240 volts or 208 volts. There will be a slight difference in performance, but it shouldn't be very noticeable. If you're asking because you have a motor load rated for 208v, you'll likely see that the motor requires three phase 208 volt power and you only have 'two phase' 240v power. You can however supply a three phase equipment or motor with a device called a phase converter.

Philo Farnsworth invented the television tube when he was only 14. RCA and David Sarnoff sued him for the patent, lost, then won it back taking the credit.

Start capacitors and run capacitors are two different types of capacitors. They alter the current to create a rotating magnetic field. They have two or three terminals to which the wires are attached.

effects of trade cycle

it's electrical elexation

You can not change it. 440 volt is by design. However you run it with 220 single phase supply, but it would run far lower power.

1.8 kilowatts = 2.4 hp

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The conversion is 746 watts are equal to 1 horsepower. To change 1.8 kilowatts to watts is 1.8 x 1000 = 1800 watts. Therefore 1800/746 = 2.4 horsepower. This is how the answer above was obtianed.

Basic componets of a plc are: power supply, CPU(central prossesing unit), I/O CARDS ( INPUT/OUTPUT CARDS)

you can get an idea by looking at the insulators

they must function in rain or snow

dew can collect on the insulator

they are made of porcelain with a glazed surface

3" diameter gives about 3" length of dew coated glaze and is safe at about 5000V

so if the insulator has 3 skirts its about 15,000V

10 skirts about 50,000V

the drops to the houses are low voltage and may be as little as 1/2 of glazed surface 600V or less

A megger test is done to check the insulation factor of wires or devices. This is to make sure that when the working voltage is applied, a short circuit to ground will not occur due to a problem with the insulation of the device or wire.

The current capacity of a cable varies depending on the type of conductor material, and the type and rating of the insulation. An excellent table that shows the capacity of different types of cables can be found here:

http://www.myelectrical.com/pages/cables/cableCurrents.aspx?id=061112125012.

Also, the current capacity of a cable will be limited by the electrical code that one is using, this varies in each developed country. Most American companies use NEC (National Electric Code) as there source for electrical codes (the most recent version being NEC2008), and much of the rest of the world will use ICC EC (International Code Council Electric Code).

A programmable logic controller (PLC) is basically a microprocessor (digital computer) that is used to control machines or electromechanical devices, or to automate industrial or manufacturing processes.

Primary utility wiring uses an ACSR cable, (Aluminium Conductor Steel Reinforced). The multiple strands of aluminum wires are wound around a center steel cable. The steel center is used to allow longer spans between poles or towers. Ordinary aluminum wire can not be long spanned because its weight would break the wire. All other high voltage wiring is done with different insulation thicknesses dependant upon what the voltage is. The higher the voltage the thicker the insulation. Insulation of the wires stops when the conductors carry kilo voltages usually above 5000 volts.

hi...

to determine the high fault current when the short circuit done at the output terminal of the generator...

more information check any book of power element analysis and chapter (three phase fault at unloaded generator)...

with my Greetings