autotransformer in a sentence
1) The circuit is quite complex and involves relatively expensive autotransformer.
2) The best results are produced by autotransformers.
3) This supplies the motor a lower voltage from the autotransformer.
4) It instead compensates by automatically selecting different power taps on the autotransformer.
autotransformer example sentences
5) Figure 11 shows the motor current curves for a 2-coil autotransformer.6) The most effective ratio of the autotransformer is between 65-80%.
7) Variable autotransformers (trade name "Variac") were then introduced.
8) The circuit uses a three-phase autotransformer and three three-phase switches.
9) The autotransformer motor starting apparatus is relatively simple compared to solid-state variable frequency drives.
10) An autotransformer has one winding which is tapped at some point along the winding.
11) Max Korndörfer claimed four methods of using an autotransformer for reduced voltage motor starting.
12) In part this was due to limited potential autotransformer ratios on a 7 turn coil.
13) In 2001, the power supply point at Guest was replaced by an autotransformer.
14) The autotransformer is designed with enough leakage inductance so that the current is appropriately limited.
example sentences with autotransformer
15) This type of core is frequently used for power transformers, autotransformers, and inductors.16) autotransformers have fallen out of use for lighting but are used for other applications.
17) An ignition coil is essentially an autotransformer with a high ratio of secondary to primary windings.
18) These stabilizers are based on an autotransformer that is controlled by two sets of thyristor stacks.
19) A 2-coil autotransformer has only two windings that are required to be switched at transition.
20) An AC voltage stabilizer typically uses a continuously variable autotransformer to regulate the main voltage in a home.
21) Resistance plates and variable brush autotransformers were largely purchased from Ward Leonard; magnetic amplifiers from General Electric.
22) The reduced voltage autotransformer starter or Korndorfer starter was invented in 1908, by Max Korndörfer of Berlin.
23) autotransformer induction motor starter.
24) I chose to use T1 which is an autotransformer with a tap at approximately the 25 ohm point.
25) He has worked most recently as commissioning manager for the North West Electrification – Phase 1 autotransformer Project.
26) autotransformer calculations autotransformer connections.
27) autotransformer calculations autotransformer connections.
How to use autotransformer in a sentence
28) More traditional methods include three phase variacs (autotransformer) or motorised Brentford type voltage regulators to control the input voltage.29) As a result, the line from Stralsund to Prenzlau is the only line in Germany, operated with autotransformers.
30) The line features a single autotransformer substation at Montclair, close to Bay Street station, dating from the 1984 re-electrification.
31) The line-interactive UPS is similar in operation to a standby UPS, but with the addition of a multi-tap variable-voltage autotransformer.
32) This made the coil act as an impedance matching transformer (in an autotransformer connection) in addition to its tuning function.
33) Phase 1 of the project involved the installation of two new substations, Ordsall Lane Mid-Point autotransformer Station (MPATS) and Willow Park autotransformer Feeder Station (ATFS).
34) Phase 1 of the project involved the installation of two new substations, Ordsall Lane Mid-Point autotransformer Station (MPATS) and Willow Park autotransformer Feeder Station (ATFS).
35) The traction power supply system has been installed to a 12kA fault level 25kV – 0 – 25kV autotransformer (AT) system.
36) Since the autotransformer is only used for the short start interval, it may be sized considerably smaller than a continuous duty unit.
37) The central switch therefore prevents any step-up autotransformer connection and a practicable means of controlling the switching transient to a lower value than the star connected switch.
38) At 30 degrees the amplitude of the motor currents supplied by the autotransformer are only half the peak motor current that occurs at 90 degrees.
39) A 3-coil autotransformer requires a 3 pole switch to control 3 phase voltages, an examination of figure 9 shows three sine waves displaced at 120 degree intervals.
40) It is therefore desirable to control the point on the wave at which to switch, the ideal point is when the motor amperes to the lowest value in all the active windings of the autotransformer.
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