autotransformer

Figure 11 shows the motor current curves for a 2-coil autotransformer.

In 2001, the power supply point at Guest was replaced by an autotransformer.

This supplies the motor a lower voltage from the autotransformer.

The solution decided upon by the railroad, after several years of study, was a balanced autotransformer system.

The most effective ratio of the autotransformer is between 65-80%.

The circuit is quite complex and involves relatively expensive autotransformer.

In an autotransformer portions of the same winding act as both the primary and secondary.

These are important safety considerations when deciding to use an autotransformer in a given application.

An example of an autotransformer is an automobile ignition coil.

A 2-coil autotransformer has only two windings that are required to be switched at transition.

Six autotransformer stations, spaced an average of 3.8 miles apart along the line, converted power.

An autotransformer has one winding which is tapped at some point along the winding.

It instead compensates by automatically selecting different power taps on the autotransformer.

An autotransformer has only a single winding with two end terminals, plus a third at an intermediate tap point.

An autotransformer has three identical windings on a ferrite core.

The autotransformer is connected to the bus bars by an additional circuit breaker.

However large medium/ high voltage motor starters have reported random autotransformer failures.

The variable ratio of the autotransformer compensates for the voltage drop along the line.

Autotransformer: Transformer in which part of the winding is common to both primary and secondary circuits.

For example, connecting the load between the middle and bottom of the autotransformer will reduce the voltage by 50%.

An autotransformer starter was patented in 1908.

These stabilizers are based on an autotransformer that is controlled by two sets of thyristor stacks.

The autotransformer is designed with enough leakage inductance so that the current is appropriately limited.

The circuit uses a three-phase autotransformer and three three-phase switches.

The Autotransformer motor starting apparatus is relatively simple compared to solid-state variable frequency drives.