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The tap changers' action is essential to maintain process control.
This was done due to the loss of suppliers of tap changer control.
The tap selection is made with a tap changer mechanism.
A tap changer is a component of a transformer.
However, a transformer may include a tap changer on each winding if there are advantages to do so.
Solid state tap changers are typically employed only on smaller power transformers.
One possible design (flag type) of on-load mechanical tap changer is shown to the right.
For more on this see tap changer.
The loco is controlled by a tap changer.
Load tap changers are devices used to change the tap position on transformers.
After the experiment it was converted back to the original tap changer control, although the guard's van remained slightly different internally.
Caused by failure of tap changers.
The tap selection may be made via an automatic or manual tap changer mechanism.
All of the winding taps will then be routed into the tap changer compartment through a terminal array.
On-load tap changers may be generally classified as either mechanical, electronically assisted, or fully electronic.
The control relay in the control centre sends a signal to the tap changer if the voltage levels need to be adjusted.
In a resistance type tap changer, the changeover must be made rapidly to avoid overheating of the diverter.
Keywords: Transformer, reliability, remaining life, tap changers, asset management, survivor curves.
The disadvantage is that these tap changers are more complex and require a low voltage power supply for the thyristor circuitry.
He testified that on-load tap changers can be adjusted manually or remotely through the control room relays.
These voltage issues affect mechanical grid equipment, such as load tap changers, which respond too often and wear out much more quickly than utilities anticipated.
Some arcing is unavoidable, and both the tap changer oil and the switch contacts will slowly deteriorate with use.
The tap changer connects the power transformer differently by moving up or down one tap, which adjusts the voltage.
Thyristor-assisted tap changers use thyristors to take the on-load current while the main contacts change over from one tap to the next.
By this means, resistors or tap changers were switched in or out of the circuit to vary the speed of the main motor.
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