Three-phase motors are less expensive than single-phase motors for motors of one horsepower or larger. Also, they are mechanically and electrically simpler than single-phase motors. This means they are more reliable. A three-phase system can use smaller wires and conduits than a single-phase system.

Three-Phase Power - A type of power supply usually used for operating heavy loads. The three conductors of an HV system or (confusingly) the four conductors of an LV system (three live and a neutral). Kilo-Volt Amperes (KVA) - A measure of electrical power. The capacity of a supply is measured in KVA's. (KVA) - A measure of electrical power. The capacity of a supply is measured in KVA's. See similar questions...

Yes, and without the expense and difficulty of a phase converter! Simply use an Inverter/VFD that accepts single phase power ( most newer models do) and let it create its own three-phase, which is much more stable than ANY phase converter can produce. Just make sure to buy an Inverter rated for one size larger spindle motor ( ex. 2HP Spindle, 3HP Inverter). Go to www.ajaxcnc.com/partsources.htm to see where we buy ours! See similar questions...

with service sizing (see next question), the power drawn by a phase converter depends on how much load is connected. Converters are actually transformers, passing through whatever current is called for by the load. If the load calls for 100 amps per phase, that's what the converter must deliver - and will deliver, if it has been sized properly. See similar questions...

my logic says ,it can be used but i don't know its consequences or,side effects,if any,please help me. using a scott transformer, feeding two single phase loads, which are unbalanced, how dramatically could this affect the overall power system? Are power electronics and svc the only solutions to mitigate the problem? Which solution is most appropriate> My name is Jose Garcia, EE. My Company: AGC Electric & Recycling Contractors Inc., Miami, FL. See similar questions...

Increasingly, the world over, people are making a transition from conventional energy sources to Solar Power because they find it is more efficient, more economical and much, much more environment-friendly. Solar Power is as reliable as the Sun: no power cuts, no black outs, no voltage fluctuations. It pays for itself in the long run. See similar questions...

Most electric utilities provide three-phase power in a "nominal" voltage specified within +/- 10%. Other users on the same distribution lines can affect the voltage supplied to you on each of the three legs of three-phase power by as much as 10% before the utility takes corrective action. Phase Perfect always balances three-phase voltages to within 1%. It also provides protection for three-phase equipment against over voltage, under voltage and single phasing. See similar questions...

The Luteal Phase is the time period beginning with the day after ovulation and running through the remainder of your menstrual cycle (ending the day before your next period). Typically, the duration of the luteal phase phase lasts between 10 and 16 days and is generally consistent from cycle to cycle, averaging for most women at about 14 days. In the Trying to Conceive (TTC) Community, the luteal phase is also referred to as "DPO" - or days past ovulation. See similar questions...

A point at which the appearance of the system changes suddenly. In physical systems the change from solid to liquid is a good example. Non-physical systems can also exhibit phase changes, although this use of the term is more controversial. Generally we regard our system as existing in one of three phases. If the system exhibits a fixed behaviour then we regard it as being in the solid realm, if the behaviour is chaotic then we assign it to the gas realm. See similar questions...

The most common question asked is whether laparoscopic surgery another cosmetic operation, the benefit of which is restricted to the bikini wearing public. There are many more advantages of this procedure: During hernia operations, already weak muscles are not cut, as would have been the case in open surgery. Exploratory ' open & close ' look into the tummy operations are avoided and the same information is gained on diagnostic laparoscopy as a day case patient with one or maximum two holes. See similar questions...

Phase I treatment is generally indicated when there is a skeletal discrepancy. Certain type of orthodontic appliances including expansion appliances, headgear and herbst appliances can prevent the later removal of permanent teeth to correct overcrowding and also prevent certain surgical procedures to align the upper and lower jaws. Early treatment can also decrease the time necessary for the 2nd phase (full braces) of treatment. See similar questions...

Hydroelectricity enjoys several advantages over most other sources of electrical power. These include a high level of reliability, proven technology, high efficiency, very low operating and maintenance costs, and the ability to easily adjust to load changes. Because many hydropower plants are located in conjunction with reservoirs, hydropower projects often provide water, flood control, and recreation benefits. See similar questions...

All booth motors (except for a few) come standard with a 3-phase 208/230/460V/60HZ motor. Single-phase motors are available (up to and including 7.5 HP) for a small charge. See similar questions...

The catenary has breaks or gaps in its electrical continuity every once in a while at points where successive sections are connected to different substations. A neutral section of catenary is usually provided between the two live sections of different phases or connected to different substations. At such points, single locomotives do not drop their pantographs, although on-board equipment such as the traction motors, compressors, blowers, etc. See similar questions...

Fill Power is a measurement of the quality of down products. Fill power is determined by placing 1 ounce of down in a glass tube. It is compressed, the weight is removed, and then the down is allowed to loft for 72 hours. The space the down occupies is measured in cubic inches. Down comforters with a higher fill power are lighter, fluffier, and warmer than down comforters with less fill power. Once the down has been separated, cleaned and sterilized, it's sorted by fill power. See similar questions...

Your amplified subwoofer system comes from the factory wired in phase with the PHASE switch in the 0 degree position. Depending on your room, and the placement of your amplified system vis a vis your main speakers, there is a possibility that you will have more bass if you switch the PHASE switch to the 180 degree position. We suggest that once you have set up your system, you experiment with this setting. See similar questions...

For rotary phase converters, the answer is a resounding "No!" Provided the converter is large enough, a rotary phase converter will develop the entire nameplate horsepower of the motor. You will have no power or capacity loss at all on a rotary phase converter. The same cannot be said for static converters, which generally do not allow motors to develop full horsepower. Static converters are unable to balance a current into three different legs. See similar questions...

Power-assisted liposuction uses special instruments (a hand piece) with a thin mental probe attached, called a cannula. The tip of the cannula is rapidly moved back and forth by the hand piece; this efficiently removes fat from areas such as the male breast in the treatment of Gynecomastia, large volume liposuction (male and female), male flanks, among many other areas. Because of the efficiency of fat removal, the time on the operating table is often less. See similar questions...

The phase 1 study is used to learn the "maximum tolerated dose" of a drug that does not produce unacceptable side effects. Patient volunteers are followed primarily for side effects, and not for how the drug affects their disease. The first few volunteer subjects receive low doses of the trial drug to see how the drug is tolerated and to learn how it acts in the body. The next group of volunteer subjects receives larger amounts. See similar questions...