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Topic: Split phase

Related Topics

Two phase

Polyphase system

Ground (power)

Electricity distribution

Distribution board

Overhead lines

HVDC

Railway electrification system

Transformer

Electric power distribution

Alternating current

Power factor

Voltage sparks and danger

Electrical substation

Power plug

	Split phase code synchronizer and demodulator - Patent 4088832
		Phase sense is critical since a necesssary condition for proper decoding is that the recovered clock signal be synchronized to the clock signal used in encoding.
		The output 42 of the phase locked loop 40 is a signal in phase quadrature lock, and at the same frequency as the signal at the phase locked loop input, i.e.
		The output 42 from the phase locked loop 40 is applied to the input 52 of a divide by two bistable or flip flop circuit 50.
	www.freepatentsonline.com /4088832.html (4340 words)

	Single Phase Asynchronous Machine :: Blocks (SimPowerSystems)
		Specifies the four type of single phase asynchronous machine (the split-phase, the capacitor-start, the capacitor-start-capacitor-run, and the main and auxiliary windings).
		Depending on the type of mask you use, the units are in SI, or in pu.
		An improvement in the operation mode of the single phase asynchronous machine occurs when the auxiliary winding is still connected in series with a capacitor after starting.
	www.mathworks.com /access/helpdesk/help/toolbox/physmod/powersys/ref/singlephaseasynchronousmachine.html (805 words)

	Clock
		The benefit of split phase is that one can partition computation into parts that need to be synchronized with others and parts that are only affect local states.
		The distributed implementation provides the exact same semantics, but with a slightly different timing of splitting phases, see Figure 4.
		After clock is locally quiescent, the next doNext message is sent to home clock, and could either block or return, depending on the global state of the clock.
	www.cs.purdue.edu /homes/xinb/cx10/CX10Report/node8.html (339 words)

	Lim-Eom Power Splitters - Microwave Encyclopedia - Microwaves101.com
		It probably fits only niche applications, because of the phase relationships of the three outputs, as well as the asymmetric layout, but still, it's a cool splitter that you should consider.
		This might be a limitation in certain applications, for equal phases you should consider a three-way Wilkinson.
		The input port is in the center of the north side, and the west, south and east sides have transmission lines that give nearly equal phase outputs.
	www.microwaves101.com /encyclopedia/LimEonsplitter.cfm (596 words)

	Split phase - Wikipedia, the free encyclopedia
		In the case of a property with a larger demand it is usually split out at the intake point and treated as two totally separate installations since there is no need for 460 V final circuits and standard consumer units, meters and distribution boards are designed around either three-phase or single-phase circuits.
		Split phase systems require less copper for the same voltage drop (voltage drop tends to be the dominant design consideration in the sizing of long mains voltage cable runs), final utilisation voltage and power transmitted than single phase systems.
		Two of the phases are 120 V to neutral, the third phase or "wild leg" is 208 V to neutral.
	en.wikipedia.org /wiki/Split_phase (1138 words)

	Smarthome Forum - Split-single-phase v. two-phase
		Split-single phase power is the most common type of power delivered today by the power company (regardless of when the wires were laid).
		Number one is phase one, number two is phase two, number three is phase one, number four is phase two.
		AC phases in the two legs are offset by 120 degrees.
	www.techmall.com /topic.asp?TOPIC_ID=87 (1746 words)

	CV61 Non-Directional Headlights, Transponding & Split Phase Motor Drive
		CV61 Non-Directional Headlights, Transponding and Split Phase Motor Drive
		Some Digitrax Decoders use CV61 (one of the manufacturer specific configuration variables) to give you the following options: Non-Directional Headlight Operation, Transponding Enabled or Disabled, and Split Phase Motor Drive for Marklin AC and Lionel Type motors.
		Split Field/AC Motor Drive When you program CV61 to 04 Digitrax decoders with split field motor drive capabilities will convert their motor leads to drive a "split field " AC motor instead of the default DC motor.
	www.digitrax.com /v1/cv61.htm (627 words)

	vgn-ext-hidden_Abstract (Site not responding. Last check: 2007-10-26)
		This modified regimen with C split between d1 and d8, and, eligibility criteria of GFR as low as 50mls/min widens the spectrum of patients receiving cisplatin-based chemotherapy.
		Phase II trial of single-agent sorafenib in patients with advanced non-small cell lung carcinoma.
		Long-term results of a phase II study of synchronous chemo radiotherapy in muscle invasive bladder cancer.
	www.plwc.org /portal/site/ASCO/menuitem.34d60f5624ba07fd506fe310ee37a01d/?vgnextoid=76f8201eb61a7010VgnVCM100000ed730ad1RCRD&vmview=abst_detail_view&confID=26&abstractID=2776 (811 words)

	Phase Stability Analysis (Site not responding. Last check: 2007-10-26)
		However, in the case of the phase split problem, it is usually possible to successfully employ local solution methods, since phase stability analysis can be used as a global optimality test that can be applied to any local solution.
		That is, if the phases determined by local solution of the phase split problem are determined to be stable, by solving a phase stability problem, then this is the desired global solution to the phase split problem.
		Typically, to solve the phase stability problem, minima in the distance of the tangent plane from the Gibbs energy of mixing surface are sought, usually by solving a system of nonlinear equations for the stationary points (Michelsen, 1982).
	www.nd.edu /~markst/globsol/wn34/node3.html (1342 words)

	Lessons In Electric Circuits -- Volume II (AC) - POLYPHASE AC CIRCUITS - Andamooka Reader (Site not responding. Last check: 2007-10-26)
		The phase angle shift of 120 degrees is a function of the actual rotational angle shift of the three pairs of windings.
		Phase rotation, or phase sequence, is the order in which the voltage waveforms of a polyphase AC source reach their respective peaks.
		Phase rotation has no impact on resistive loads, but it will have impact on unbalanced reactive loads, as shown in the operation of a phase rotation detector circuit.
	www.andamooka.org /reader.pl?pgid=liecACAC_10 (6910 words)

	Single-phase electric power - Wikipedia, the free encyclopedia
		The generation of AC electric power is commonly three phase, in which the waveforms of three supply conductors are offset from one another by 120°.
		A single-phase load may be powered from a three-phase distribution system either by connection between a phase and neutral [120v or 220v], or by connecting the load between two phases [120v and 120v, the total being 240v or 220v and 220v, the total being 440v].
		Note that true two phase power, meaning the simultaneous provision of sine wave and cosine wave electricity (that is, 90 degrees out of phase) is no longer widely used.
	en.wikipedia.org /wiki/Single_phase_electric_power (731 words)

	Single Phase Induction Motors
		Most single phase motors are fitted with a centrifugal switch to disconnect the start winding once the motor is close to full speed.
		The capacitor provides a phase shift to the current flowing in W1 and we therefore have a "two phase" motor while the switch is closed.
		The winding W1 has resistance to provide a phase shift to the current flowing in W1 and we therefore have a "two phase" motor while the switch is closed.
	www.lmphotonics.com /single_phase_m.htm (1152 words)

	To or from bi-phase level code (e.g., split phase code, manchester code) - PatentStorm (Site not responding. Last check: 2007-10-26)
		A phased array antenna system having an array of antenna elements coupled to radio frequency energy feed network through a plurality of phase shifter sections with digital control data being fed to the phase shifter sections with radio frequency energy signal modulated with the digital control...
		The present invention uses a phase lock loop with a digital delay line wherein an adjustable delay is introduced into the Manchester coded signal for synchronizing the coded signal with the local...
		A dual clock tracking decoder for use in a local station of a token ring local area network extracts the mostly repetitive bit-cell transitions corresponding to the imbedded clock of a received phase encoded message from which a short term and a long term moving average estimate is made of the...
	www.patentstorm.us /class/341/70-To_or_from_bi_phase_level_code_(e_g_,_split_phase_code,_manchester_code).html (2535 words)

	Single-phase power systems : POLYPHASE AC CIRCUITS (Site not responding. Last check: 2007-10-26)
		Instead of a single 240 volt power supply, we use two 120 volt supplies (in phase with each other!) in series to produce 240 volts, then run a third wire to the connection point between the loads to handle the eventuality of one load opening.
		Split phase 120/240 Vac source is equivalent to two series aiding 120 Vac sources.
		The term “single phase” is a counterpoint to another kind of power system called “polyphase” which we are about to investigate in detail.
	www.allaboutcircuits.com /vol_2/chpt_10/1.html (1752 words)

	The Tube CAD Journal, Electrostatic Headphones Amps -Part 2-pg 5
		The Split Load phase splitter's plate resistor is connected to the top triode's cathode and the bottom is DC coupled to the grid of the top triode, while the cathode resistor is DC coupled to the grid of the bottom triode.
		This requirement is what forces the Split Load phase splitter's plate connection to the top triode's grid and its cathode connection to the bottom triode's grid.
		Then a phase splitter is needed to give the top and bottom triodes the correct signal drive voltage independent of the output signal swing.
	www.tubecad.com /december99/page6.html (350 words)

	Franklin Electric - EMPD - Basic Motor Types (Site not responding. Last check: 2007-10-26)
		The split phase motor is most widely used, for "medium starting" applications.
		Popular applications of split phase motors include: fans, blowers, office machines and tools such as small saws or drill presses where the load is applied after the motor has obtained its operating speed.
		The permanent split capacitor motor (PSC) is compact, easy to maintain, highly efficient and has a high power factor.
	www.franklin-electric.com /empd/tech/fe-basic.html (440 words)

	ELECTRO SALES CO., INC.: Catalogue 1995-96 BODINE ELECTRIC COMPANY (Site not responding. Last check: 2007-10-26)
		Permanent Split Capacitor motors, Bodine types “Cl” and “YC”, are designed for single speed applications using single phase power.
		Split Phase motors, Bodine types “Sl” and “SY”, are designed for single speed applications using single phase power.
		In addition, 3 phase motors may be used in variable speed applications using 230 volt output AC variable frequency (VF) drives.
	www.electrosales.com /bodine/ac_info.html (516 words)

	Three-Phase Power Systems - Polyphase AC Circuits
		However, we have realized a gain in safety, because the overall voltage between the two "hot" conductors is 32 volts lower than it was in the split-phase system (208 volts instead of 240 volts).
		I'll spare you the long, drawn-out calculations because you should be able to intuitively understand that the three voltage sources at three different phase angles will deliver 120 volts each to a balanced triad of load resistors.
		The best way to get the phase shifts we're looking for is to generate it at the source: construct the AC generator (alternator) providing the power in such a way that the rotating magnetic field passes by three sets of wire windings, each set spaced 120
	opamp-electronics.com /tutorials/three_phase_power_system_2_10_02.htm (1663 words)

	Modification of X10 220V Heavy D (Site not responding. Last check: 2007-10-26)
		The electrical panel appeared to be split phase (not a three phase panel) and the utility is billing me for "single phase" service.
		X10 partially addressed 3 phase power by requiring that the 120kHz pulses be sent not only at the zero crossing, but also be repeated at 2.778 and 5.556 miliiseconds (60 and 120 degrees) after the zero crossing to cover the zero crossing of the second and third phase.
		When the phases cross, a transition occurs at pin 1 of R3 which is fed to the zero crossing input of the 78570.
	www.geocities.com /idobartana/modifying_heavy.htm (2607 words)

	Reversing and Repair of Electric Motors
		Three phase motors are commonly found on used industrial machines and will not run on house current without an expensive rotary phase converter.
		Split phase motors are considered to be adequate for easy starting tools, such as grinders, drill presses, jigsaws and the like.
		I have found the 1/3 hp split phase motor on my old Delta drill press to be adequate for all but the higher speeds.
	www.metalwebnews.com /howto/elec-mtr/elec-mtr.html (3501 words)

	Three-phase motors 101
		In single phase motors, this is solved by either using brushes to flip-flop the polarity of an electromagnetic armature (like in a DC motor) or by using a capacitor to create a shifted sine wave that can be used to 'pull' the armature in the direction we want it to go.
		The edgebander was the most complicated machine to match a converter because it runs on single phase (while the glue heats up), so the wiring had to be done in such a way as to bypass the third leg while heating the glue.
		It is actually what is referred to as "Split Phase" and consists of two single phase windings (with no phase shift between them) connected so that their polarities are additive.
	www.woodweb.com /knowledge_base/Threephase_motors_101.html (3151 words)

	IP Address Split Operation Phase #1
		This split operation can be created and remain dormant until such time as its necessary to execute.
		The split operation should make a recommendation to the operator as to which HFC nodes it believes should be moved.
		The purpose of allowing multiple split rules is to enable the recommendations to be tailored by each operator's preference.
	www.birds-eye.net /example_archive/ip_mgt/split_24_132_0_0-24_phase1.htm (394 words)

	eBay - split phase, Industrial Electrical Test, Networking items on eBay.com (Site not responding. Last check: 2007-10-26)
		Phase I Split Yoke cable Spectra 1000 "O" Creep EBS
		Dayton Gearmotor Split Phase 5K941D 1/4Hp new 115V
		GE general electric G745 split phase 1/3 HP 1725 RPM
	search-desc.ebay.com /search/search.dll?query=split+phase&newu=1&krd=1 (480 words)

	Single-phase induction motors
		A 90-degree electrical phase difference between the two windings is obtained by connecting the auxiliary winding in series with a capacitor and starting switch.
		The electrical phase shift between the currents in the two windings is obtained by making the impedance of the windings unequal.
		Although the ideal angular phase difference is 90° for maximum starting torque, the 30-degree phase difference still generates a rotating field.
	www.tpub.com /neets/book5/18d.htm (952 words)

	Lessons In Electric Circuits -- Volume II (AC) - Chapter 10
		The resulting phase shift from the capacitor causes the voltage across phase 1 lamp (between nodes 1 and 4) to fall to 48.1 volts and the voltage across phase 2 lamp (between nodes 2 and 4) to rise to 179.5 volts, making the first lamp dim and the second lamp bright.
		Phase rotation, or phase sequence, is the order in which the voltage waveforms of a polyphase AC source reach their respective peaks.
		As predicted earlier, the load phase voltage is almost a pure sine-wave, with negligible harmonic content, thanks to the direct connection with the source phases in a Δ-Δ system.
	www.ibiblio.org /obp/electricCircuits/AC/AC_10.html (11690 words)

	Frequently Asked Questions (Site not responding. Last check: 2007-10-26)
		Set the through split along the artery to be 100% of the cycle length, and name the intersections "SchZone" or "SZ" so you'll know what it is. Then set the band speed downstream of the phantom intersections to the lower speed (e.g., 20 mph) in the appropriate directions of travel.
		In this case, the through split in the one direction should be equal to the opposing through split plus the turn split.
		While viewing the Splits in the intersection parameters dialog, the through and turn Splits for opposing directions of travel are displayed in the four corners of a box.
	www.tsppd.com /faq.htm (7982 words)

	Two phase - Wikipedia, the free encyclopedia
		In the early days of electrical engineering, it was easier to analyze and design two-phase systems where the phases were completely separated, since this avoided the need for the effect of unbalanced loads.
		The secondaries of the transformers will have two phases 90 degrees apart in time, and a balanced two-phase load will be evenly balanced over the three supply phases.
		The proper term is split phase or 3-wire single-phase.
	en.wikipedia.org /wiki/Two_phase (454 words)

	Motor Characteristics - SDP/SI Tech Library D220-T145
		After the start winding is disconnected from the circuit, the performance is nearly identical with the split phase motor.
		Locked rotor torque is low compared to split phase or capacitor start motors and are therefore restricted to direct fan drives and blowers.
		The repulsion start induction motor is a single phase motor consisting of a stator winding connnected to the power source and a rotor winding connected to a commutator.
	www.sdp-si.com /D220/HTML/D220T145.htm (643 words)

	Comprehensive Motor Electricity
		The two wattmeter method is used to calculate three phase power at all normal power factors.
		To use the meter panel, it is merely necessary to connect a three wire, three phase input and to take the the output from the appropriate binding posts.
		Phasing Switches are provided to correct for line imbalances.
	home.att.net /~cat1/cat37.htm (732 words)

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