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In electronics, a center tap (CT) is a contact made to a point halfway along a winding of a transformer or inductor, or along the element of a resistor or a ...
The center tap is grounded and one pole is fed to an overhead wire section, while the other wire is used for another section. Split-phase distribution is used on Amtrak's 60 Hz traction power system in the Northeast Corridor between New York and Boston. Two separate wires are run along the track, the contact wire for the locomotive and an ...
Center-tapped delta transformer Center-tapped delta transformer voltages. High-leg delta service is supplied in one of two ways. One is by a three-phase transformer (or three single-phase transformers), having four wires coming out of the secondary, the three phases, plus a neutral connected as a center-tap on one of the windings.
The 240 V secondary winding is center-tapped, and the center neutral wire is grounded, making the two end conductors "hot" concerning the center tap. These three wires run down the service drop to the building's electric meter and service panel. Connecting a load between the hot wire and the neutral gives 120 volts, which is used for lighting ...
The center tap of a transformer is connected to ground, and the equipment is supplied by two line wires each 60 volts to ground (and 120 volts between line conductors). The center tap is not distributed to the equipment and no neutral conductor is used.
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The secondary winding of the transformer provides 240 volts between its ends and is center tapped. The service drop, to a weatherhead on the premises being supplied, is made up of a neutral line connected to the transformer's center tap and two lines connected to the ends of the winding which provide 120V with respect to the neutral line.
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