208V Wiring Diagram V To V Transformer Wiring Diagram inside 208V Single Phase Wiring Diagram, image dimension 695 X 385 px, and to see image details please click the picture. It has been observed that 208v single phase wiring diagram is currently one of the most popular sectors. We know that, at this time there are many people who are looking for post related with 208v single phase wiring diagram, so we try here to provide as much information about it as possible. The image below have been posted by admin on June 12, 2018, 3:04 am.
Rh visithoustontexas org step up transformer 208 to 480 wiring diagram-step down transformer wiring diagram inkshirts.co is the source. Wiring schematics for step-up transformers 208 to 480 Click on the image to enlarge it, and then right-click to save it to your computer. The link will open in a new window. Step-Up Transformer Wiring Diagram. A step-up transformer increases the voltage of an alternating current (AC) circuit relative to that of the power source. In other words, it "steps up" the voltage. Step-up transformers are used in many appliances and equipment that require more voltage than what is available from the wall outlet. For example, if you were to connect a 9 volt battery into a power strip with both 120-volt outlets activated, the lower voltage outlets would only be able to deliver about 8 volts instead of the usual 12 volts. This could easily cause damage to any device plugged into these lower power outlets. To fix this problem, you can buy a step-up transformer so that the battery can supply enough voltage for both sets of outlets to operate at their full capacity.
Step-up transformers come in two types: single-phase and three-phase. Single-phase step-up transformers are usually not as efficient as three-phase ones, but they are much cheaper to make.
Depending on the electric service given to the building, 208 volts is a form of 4-wire 3-phase with 3 hot wires and a neutral used for commercial purposes, or a 2-wire single-phase with 2 hot wires, or a 2-wire single-phase with 1 hot and 1 neutral wire. A wiring diagram will show which wires are supposed to be hot, which are supposed to be neutral, and which should not be connected to anything.
In any case, the answer is 3 because that's how many wires are required by code for 208 volts. If you're using 4-wire 3-phase power, then you'll need to bring in an extra ground wire to meet code requirements. If you're using 2-wire single-phase power, then you can skip the third hot wire since there's no way for it to become live if something goes wrong with one of the other two.
The number of wires needed for 240 volts is always three. There must be a hot conductor for each phase of your circuit; additionally, there must be a neutral conductor always attached to the same side of a breaker as one of the hot conductors.
A fourth wire is sometimes included in 240-volt circuits as a safety measure. This is called a "third" hot.
A three-phase step-up transformer from 240 to 480 volts is shown in this wiring diagram. A wiring diagram is a simplified and attractive graphical depiction of an electrical circuit. It depicts the circuit components as simplified forms, as well as the capability and signal connections in the company of the devices. The wiring diagram also includes any relevant information about the safety of the system, such as "Hot" and "Neutral" wires and proper grounding methods.
The power supply consists of three phases that are connected to the transformer secondary side. The primary side of the transformer is connected to the body ground (GND) via two resistors. The red and black wires represent hot wires that must be kept separate on all parts of the wiring diagram. The white wire is known as neutral or common, and it can be connected to anything that will not damage a device if electricity flows through it. Finally, there is a green wire that is either a protective ground or a third phase that is not used here.
The secondary side of the transformer has three pairs of conductors that carry voltage away from the transformer. These conductors are called phases. If you were to connect a multimeter to these conductors, it would read 120 volts between each pair. This means that the total output voltage of the transformer is 240 volts. The factor of three comes from using three different phases instead of one single conductor.
208V single-phase and three-phase voltages are one of the standard voltage levels used in commercial applications in the United States. It is generated from the Wye-Wye (Star to Star), Delta-Wye, or High Leg Delta arrangement of the transformer's primary and secondary windings. The secondary winding connection to the load is always across both halves of the voltage system.
The voltage rating of any device connected to the system should be sufficient to handle the full waveform produced by the generator. Otherwise, overstress of the device may occur. For example, if a motor is connected to the system, it must be able to withstand full voltage throughout its rotation. If it cannot, the motor will fail prematurely due to overheating or other damage caused by excessive current flow.
In general, single-phase generators produce sinusoidal voltage with a peak value of two times the mean value of the half-wave voltage. Thus, a 208V generator produces 104 volts peak and 52 volts rms. Three-phase generators produce square-wave voltage with a frequency equal to 1/2 times the rate at which the generator switches between high and low voltage connections to the star points. Thus, a three-phase generator producing 60 hertz would have 120 hertz peak and 40 hertz rms.