Electrical Wiring

No. Names, titles, logos, common words/phrases are not eligible for copyright protection.

According to Gateway's website, that is not a valid serial number. It needs to be 10, 13, or 22 digits long. http://support.gateway.com/support/srt/allsysteminfo.aspx?cmpid=topnav

A contactor is a type of switch. However this switch uses electricity to power an electromagnetic coil to switch on or off power. Hence a contactor needs 2 wires - A live/hot wire and a neutral wire. Generally these are connected across the A1 and A2 terminals of the contactor.

There is a little adapter which does this for you. It is available in Canada and CSA certified. It is available at Home Depot. Just plug it into the 240 volt outlet and you now have a 120 volt outlet, which is protected by its own internal 15 amp fuse. This device is to be used for one specific use only and that is to safely convert an electric range outlet when a gas ranges is replacing the electric range. Gas ranges need a 120 volt supply to operate and this device is used so that the range receptacle can supply the needed 120 volt supply. See related linksbelow.

stand on polystyrene or rubber

Crank the generator excitation up to 480 or down to 460. For calculations I used 480 volts. A 60kW generator at 480 volts will put out, kW x 1000/1.73 x E x (pf(.9)) = 80 amps. It looks like the machine that is to be run off the generator is a dual voltage machine. Not knowing the HP of the machine wire it to the 460 volt connection. The inrush current might be a problem if the HP is high.

If I'm understanding the question, you are proposing using one motor and one generator, and have the motor spin the generator up to speed, and have the generator attempt to supply power to the motor.

The answer is yes, you can do this, but you will be losing energy, not gaining it. The motor and generator's efficiencies are less than 100%, so once you remove the outside source they will slow down until they come to a complete stope, without any other load connected other than themselves.

If you have power to a circuit (you can tell with a multi meter), and it does not do what it is supposed to it is bad. Make sure the fuse is good. If fuses keep blowing then there is too much current, which is usually indicative of a short. If you see smoke, there's a good chance you're circuit is bad. An electronics book will tell you what to look for if you are trying to troubleshoot a circuit board. Many times the board will need to be replaced as individual components are too small and impossible to get at to change.

There is no formula needed, they are the same thing, just two different wordings.

Answer 1:

TV's use single-phase power.

Answer 2:

TV's use single phase power of 220 or 110 volts ac power depending on what part of the world you live in.

A braided wire is less likely to break than a solid wire. Also it can bend sharp corners easier than solid wire.

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The use of braided wire is to act as a shield on analog cable sets. The braid can be 50%, 75% or 100% shielding. The braid is grounded only at one end so as not to conduct a current through mutual inductance from other wires. Its function is to protect the signal wires in its cable from magnetic interference from adjacent non shielded cables. The wires inside the shielded cable are stranded where as the braided shield is very fine solid wire woven together to form a shield over the entire cable set. Another example of a braided wire would be a coaxial cable.

How do you troble shoot a Regulator on a 1993 harley fatboy?

If you are referring to a circuit breaker in an electrical panel, each circuit breaker is designed to trip at a preset amperage rating. The NEC (national electrical code) only allows one circuit, rated at no more than 80% of the breaker rating to be fed from each circuit breaker. Generally the builder will design the electrical layout of any building to maximize and to most effectively balance the load for lighting and receptacles. Adding another circuit wire to the load side of the breaker already in use could have a potential for overload which could cause the breaker to heat up and trip, not to mention that it complicates things during troubleshooting. New circuits or other wire additions must have their own breaker.

It will probably be OK but if you are worried about it why not check with the User's Manual for the Pump to see if it mentions what tolerance of voltage fluctuation it has.

Normal household AC voltage fluctuation in US, Canada and countries which use similar 60 Hz supplies, can be 240 volts RMS +/- 10%, that is from 216 Volts to 264 Volts.

In Europe the standard frequency is 50Hz and the voltage specifications are now 230 Volts RMS +10%/-6%, that is from 216.2 Volts to 253 Volts.

The laptop has a power supply that connects between the laptop and the wall outlet. Looking at the power supply, the input voltage will show a working voltage from 100 to 240 volts. You may need a pin changing adapter because the pin configuration is different between 110 outlets and 220 volt outlets. Get past the pin configuration difference the computer will operate on both voltages through the power supply as long it is in the voltage range stated above.

you divide the volts by the ohms

126 volts sounds very close to a standard home voltage of 120 volts, which is single phase. 208v is a three phase voltage, and is the lowest I have seen. 240 is single phase (usually center tapped, so in your house you have +120, and -120 referenced to the neutral which provides the normal 240 for dryers, stoves, etc.).

There is a three phase diode bridge in a vehicles alternator. The voltage is generated as three phase AC. The diode bridge converts the AC voltage to DC voltage. This is the DC voltage that is used to charge the battery of the vehicle and run the vehicles electrical systems and equipment.

Lipids are hydrophobic, which means they do not dissolve in water. Th characteristic is important because it always lipids to serve as bariers in biological membranes

No, this voltage appears ACROSS individual phases, or BETWEEN a line conductor and the neutral

Assuming that your pump start relay is a contactor with overload protection and a 220 volt coil. Connect the incoming 220V to the connection points on the top of the contactor. Connect the pump motor to the bottom contactor connection points. From the right incoming voltage connection point take a # 14 wire, in flexable conduit, to one of the N.C. (normally closed) terminals in the pressure switch. The pressure switch which should be connected into the water line at this time on the pressure side of the pump. From the opposite N.C. terminal in the pressure switch take another # 14 wire, in the same flexable conduit, to one side of 220V contactor coil. At this point, (1) if overload contacts are available, take a # 14 wire from the other side of the 220V contactor coil to one side of the N.C. contacts in the overload block. From the opposite side of the N.C. contact in the overload block take a # 14 wire up to the left side of the incoming 220V connection point. If there is no overload block, as some motors have internal overload protection, (2) take a # 14 wire from the other side of the 220V contactor coil directly to the left side of the incoming 220V connection point. As you can see the circuit is all series connections from voltage supply to pressure switch, to overloads, to return voltage supply. With the pressure switch contacts closed and the overload contacts NOT tripped the pump will start. When pressure reaches the set point the switch will open and the pump will shut off.

Yes and no. A motor will continue to run but at a lower efficiency that when three phase is applied but it is not reccommended leaving it in this condition. It is usually demonstrated in electrical course classrooms to show that it will work. A three phase motor will not start by itself with just two phases connected. Another classroom demonstration is connecting the motor in a single phase supply (two of the three phases) and starting the motor with a rope wound around a pully on the shaft. Pull the rope like starting a gas engine and the motor will run. When a phase is lost the other two leg currents will go high, this high current is what can burn the motor out. Contactors today monitor all three phases and are protected with overload heaters. These heater blocks have auxiliary normally closed (N.C.)contacts on them. The start circuit is wired in series through these N.C. contacts which is in series with the contactor's hold in coil. If any of the three phase legs that are monitored draws a higher current than what the heater blocks are rated for the auxiliary contact on the block opens and de energizes the contactor's coil. This action disconnects the motor's supply voltage from the motor and stops the motor before any damage is done to the insulation of motor's coil windings.

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your sister accidently left her didoe in the radiator... you might want to go check!!