autotransformer

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autotransformer,

n a transformer with a single winding, having a large number of connections, or taps. Used to deliver a precise voltage to the high-tension primary circuit.

autotransformer

a supplementary transformer with insulated primary and secondary windings on one core in a radiographical unit. It corrects fluctuations in the mains input voltage.
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The input voltage source of 220 V and 50 Hz frequency was connected to variac device, of 8 Amperes and output voltage range from 0 to 250 V, in order to control the output (A.
Una vez ajustado el Variac para un flujo cercano al deseado, se iniciaba el desplazamiento del aire en un momento dado, siguiendo visualmente los valores del contenido de aire en el espirometro y cuando el o los medidores de presion asociados indicaban un regimen estable, se media el tiempo asociado con el paso de 30 litros de aire.
Controlled by a Variac, a high voltage was gradually applied to the electrode and monitored on the digital display of the digital multimeter.
Illumination was adjusted by means of a variac to the minimum level necessary to provide good contrast between the squid and the background.
If your tolerances are very loose--say |+ or -~ 10%--you can get away with almost anything, even a jury-rig consisting of a Variac, a rectifier, and a filter capacitor.
To reduce power to the lower level required in experiments at the University of Maryland and the Baystate Medical Center, a variac is used to lower input voltage.
Is a 44 year old manufacturer of Uninterruptible Power Supplies, Power Line Conditioners, custom linear and switch mode power supplies, Variac auto transformers and voltage regulators and invertors.
Tenders Are Invited For Supply of Single Phase Variac, 0-250V / 3 Phase Variac, 0-500V, 15A
The Performance analysis of dc-dc converter with variac has keep wide output voltage in low input voltage conditions.
Temperature should be PID controlled--no variac or percentages.
Variac system: A variable transformer (model number 3PN1010b-DVM) was used to maintain a voltage of 120 V to the fan supplying combustion air to the burner.