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What is the reason for using a multiple secondary transformer?
Multiple Winding Transformers can also be used to provide either a step-up, a step-down, or a combination of both between the various windings. In fact a multiple winding transformers can have several secondary windings on the same core with each one providing a different voltage or current level output.
What is transformer tap ratio?
Transformers are normally provided with taps to adjust the turns ratio to compensate for this supply variance. This will allow the output voltage to be closer to the rated output voltage when the input voltage is off rated voltage. Taps will add or subtract a number of complete turns to fine tune the turns ratio.
What is the purpose of a multi tap transformer?
A Multi Tap Transformer is a step up or down transformer that has multiple taps on either the primary winding or the secondary winding. A Multi Tap Transformer provides flexibility in your input and output voltage requirements. Multi Tap Transformers are used in heating element applications.
Where are feeder and transformer secondary tap conductors located?
Feeder taps and transformer secondary taps must meet the requirements of 240.21. The general rule for the location of overcurrent protective devices protecting ungrounded conductors in 240.4 is that they “..be located at the point where the conductors receive their supply except as specified in 240.21 (A) through (G)…”
What do you call a transformer secondary conductor?
Transformer secondary conductors are transformer secondary conductors. However, transformer secondary conductors must be identified by the installer and inspector as they will be classified as branch-circuit, feeder, or tap conductors.
Which is an example of a tap conductor?
Examples of transformer secondary conductors, which are always tap conductors, are those from single-phase 3-wire, three-phase 4-wire delta and wye-connected secondarys. In order for us to apply the name tap conductor we must first be certain that we are not dealing with service, feeder or branch-circuit conductors.