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When you wire a 480 plug, you need to have the ground wire on the green screw. (It is the only prong with the 90 degree bend in it. ) If the motor is operating backwards, you swap any 2 wires in the plug. Example: Terminal 1-Black, Terminal 2-White, Terminal 3-Red, ground-Green. If machine runs in the wrong direction, you can do this order: Terminal 1-black, terminal 2-red, terminal 3-white, ground-green. If you are wiring to replace an existing plug, remember their order, so you can keep the phasing correct for that specific application, withut performing a test run of your equipment. If your phasing is critical, There are hand held tools that allow you to check phasing.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoConnect the 480 volts to the three H1, H2 and H3 taps. Connect the load to the 240 output taps X1, X2 and X3. There will be movable bolt taps on the primary side of the transformer. Most transformer nameplates will tell you what the tap position on the primary has to be changed to, so that the secondary output voltage that you are looking for can be obtained.
Wiki User
∙ 11y agoget a 480 to 220V transformer, wire one phase of 480V to the primary side of the transformer, than the secondary will give you the output for 220V.
Wiki User
∙ 11y agoIt isn't safe to do it if you don't understand how Transformers work, and these voltages are dangerous.
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What color should a H2 Conductor on 480 volt transformer should be marked?
The conductor for H2 connection on a 480 volt wire transformer should be marked:
Can you soft wire an electric water heater and plug it into a household outlet?
If it does not come with a plug on it, no. If it is made for direct wire, then 99.9% chance is that it is a 240 volt unit. If you plug it into a 120 volt outlet your water will barely get warm.
What is the benefits of using 277 volt electrical equipment?
with 3 phase lighting you do not have to use as large of wire and can use one neutral for every 3 current carrying conductors so it cut down on material costs ( as voltage increases current decreases) <<>> The voltage 277 is the star-point voltage of a 480 volt three phase system. By using a 480 volt wye system you have the dual ability of running 480 volt three phase equipment along with 277 volt lighting. The side advantage is the ability of using the phase voltage to ground (neutral) 480 / 1.73 = 277 volts for general lighting of the building the 480 volt equipment is located in.
What gauge wire should be used for a 480 volt 100 amp run of just under 100 feet?
A #3 copper conductor will do the job.
Is 277 volt one hot wire?
No, 277 volts is the line to neutral of a 480 volt wye three phase system. L1- N, L2 - N and L3 - N will give you 277 volts. L1 to L2. L2 to L3 and L3 to L1 will give you 480 volts.
What color should a H2 Conductor on 480 volt transformer should be marked?
The conductor for H2 connection on a 480 volt wire transformer should be marked:
Can you soft wire an electric water heater and plug it into a household outlet?
If it does not come with a plug on it, no. If it is made for direct wire, then 99.9% chance is that it is a 240 volt unit. If you plug it into a 120 volt outlet your water will barely get warm.
How do you wire a 3 wire 240 volt stove to a 240 volt 4 wire feed?
Change the cord/plug on the stove to a four wire cord/plug. When installing the new plug remove the grounding strip that connects the center lug in the stove wiring block to the frame of the stove. Connect the white wire from the new plug to the center lug. Connect the green wire from the plug to the stove frame.
What is the volt drop on a cable 912 meters 480 volts and load of 54 amps?
The volt drop on a cable 912 meters 480 volts and load of 54 amps is 5% if you use 2/0 AWG wire and 2.4% if you use 300MCM wire. See Related Links below
Can you run 480 volt motors in a 380 volt system?
Can I run 480 volt , 60 HZ motor at a 380 volt , 60 Hz system?
Is a 300 volt wire good to connect a range?
The 300 volt insulation rating on wire is the maximum amount of voltage that can be applied to that wire. If your range falls within that range then it is safe to use. Some commercial ranges use 480 and 575 volts. For theses types of ranges the 300 volt wire will not do, it will have to be wire with a conductor whose insulation rating is 600 volts or greater.
What is the benefits of using 277 volt electrical equipment?
with 3 phase lighting you do not have to use as large of wire and can use one neutral for every 3 current carrying conductors so it cut down on material costs ( as voltage increases current decreases) <<>> The voltage 277 is the star-point voltage of a 480 volt three phase system. By using a 480 volt wye system you have the dual ability of running 480 volt three phase equipment along with 277 volt lighting. The side advantage is the ability of using the phase voltage to ground (neutral) 480 / 1.73 = 277 volts for general lighting of the building the 480 volt equipment is located in.
In a three phase four wire wye system having 277V for lighting the three phase motors operate on what voltage?
480 Volt
What is the required wire size for a 230 feet run 480 volt 100 amp?
Depends on length. The more length, the more resistance.
Can 480 volt electric be run in emt conduit?
Yes 480 volt electric wiring can be run in emt conduit.
A 480-volt circuit has an impedace of 60 ohms what is the current?
480 volts and 60ohm impedence current = volt/impedence current=480/60 current=8ampeares
How do you wire a 277 to 120 volt transformer?
The voltage 277 volts is a three phase line to neutral voltage of a 480 volt system. What is needed for the protection of the transformer is a two pole breaker from the 480 volt CDP (Central Distribution Panel). The breaker will be sized to the KVA of the transformer. The wire will be sized to the breaker plus 25%. The electrical code requires that on motor and transformer feeders, they be sized to 125% of the total current capacity of the equipment.
