A window current transformer is a transformer with separate primary and secondary windings wrapped around a laminated core.
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Autotransformer reduced-voltage starting is used for startin…
Autotransformer reduced-voltage starting is used for starting blower, compressor, conveyor, and pump motors over about ___ HP.
___ transformers are used to prevent a ground loop from caus…
___ transformers are used to prevent a ground loop from causing problems in a circuit.
Autotransformer reduced-voltage motor starting reduces the a…
Autotransformer reduced-voltage motor starting reduces the applied motor voltage to 50%, 65%, or 80% of the ___ voltage when starting.
Sychronous motors have a ___-part motor.
Sychronous motors have a ___-part motor.
The accuracy of a transformer is only affected by its design…
The accuracy of a transformer is only affected by its design.
Current transformers typically consist of ___ winding(s).
Current transformers typically consist of ___ winding(s).
The reason for fusing both sides of a control transformer is…
The reason for fusing both sides of a control transformer is to protect the primary if there is a short in the secondary.
A(n) ___ transformer is a transformer used to supply low-vol…
A(n) ___ transformer is a transformer used to supply low-voltage, low-power circuits, such as for doorbells, annunciators, and similar systems.
The most common control transformers have ___ primary coils…
The most common control transformers have ___ primary coils and one secondary coil.