0
How do you hook up a 3 phase water heater to a 3 wires 1 white 1 black 1 bare copper ground?
Wiki User
∙ 14y ago
In order to answer your question, firstly, we have to accurately establish your supply.
Is it 2 phase or 2 wire?
2 phase is two active conductors, i.e. 2 live wires with reference to neutral or ground
2 wire is single phase, an active and a neutral conductor.
2 phase supply is uncommon.
Single phase (2 wire) is the more common supply and for installations with large loads three phase, or, more appropriately 3 phase and neutral (4 wire) is used.
Please confirm your supply so that a detailed answer can be provided.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Do you need a neutral to install 480 volts 3 phase heater?
If the heater is rated as a 3 phase 480 volt heater then a neutral is not needed. If the voltage stated is 277 volts three phase then a neutral is needed.
You are measuring 480 volt from phase to phase and 280 volt phase to ground but one leg measures 440 volt phase to ground why?
Check for a blown fuse in one of the phase legs.
Why do you have voltage to ground but not voltage phase to phase?
There is phase to phase voltage in 3 phase system.AnswerYou don't get voltage 'phase-to-phase'; it's 'line-to-line'!
Single Phase 240 120 Volts AC a test meter placed across black wire and Ground wire will read what?
Answer for USA, Canada and countries running a 60 Hertz supply service.A test meter across black and ground in a 120/240 split phase system should read about 120 volts. Note, however, that ground is not the correct reference point; neutral is the correct reference point, and the meter should be connected across black and white, or red and white, or red and black. This is because the ground connection is a protective earth ground, not intended to carry current. Since ground and neutral are tied together at the distribution panel, you might expect them to have no potential difference, but impedance in the conductors will result in a voltage drop across neutral, biasing the voltage seen between hot and ground, as opposed to hot and neutral.
What does the phase 'gone to ground' mean?
It's when people have it.
Is there any other wires colors used for grounded other than gray and white?
In industrial wiring 'three phase' green or bare copper is the norm for a ground. In home wiring 220/110 single phase, bare copper is the ground
Does a two phase heater need a two phase thermostat?
Most electrical equipment are either designed to work on Single phase (two wires) or Three Phase (three or four wires). Two phase equipment are non existent today. A single phase heater will require a single phase thermostat while a three phase heater will require a three phase thermostat.
On a 208 120 volt 3 phase electrical system what is the color code for the wires?
208/120 is typical for the US, so these are the colors for the US: A phase: black -------------------In Canada; A phase - Red B phase: red-------------------------------------B phase - Black C phase: blue -----------------------------------C phase - Blue neutral: white -----------------------------------neutral: white ground: green or green with yellow stripe
Do you need a neutral to install 480 volts 3 phase heater?
If the heater is rated as a 3 phase 480 volt heater then a neutral is not needed. If the voltage stated is 277 volts three phase then a neutral is needed.
Do you need ground to run a 240 vac water heater?
No, not really. The two hot legs can be opposite legs of a 120/240 V split phase power source. You still do need a protective earth ground, however, but the heater itself does not require a grounded neutral to run.
Is transmission voltage a phase to phase voltage or a phase to ground voltage?
Phase to Phase voltageCorrection to the above answer:There is no such thing as a 'phase-to-phase' or 'phase-to-ground' voltage. The correct terms are 'line-to-line' (or 'line voltage') and 'line-to-ground' (or 'phase voltage'). Transmission-line voltages are line-to-line (or 'line') voltages.
What is a disconnect installation fault?
I have never heard a fault type referred to as a "disconnect installation fault". In general there are a few types of faults - phase to ground or ground faults, phase to phase, phase to phase to ground, three phase, and three phase to ground. I'm guessing what you're referring to is a fault on a disconnect switch. Disconnects are used to isolate equipment. When a disconnect faults, it usually faults to ground.
What color should the wires be in a 120v system?
It depends. In a typical US residence with 120/240v single-phase power, the ground wire will be green, the neutral will be white, and the hot conductor will be either black or red depending on which phase it is connected to. Odd numbered breakers (1,3,5, etc.) are black, and even numbered breakers are red. You will measure 120v from black to white, also 120v from red to white, but 240v from black to red. In a commercial building with 3-phase 120/208 power, ground and neutral are the same color, but there are 3 hot colors - black (a-phase) red (b-phase) and blue (c-phase). As you run down a line of breakers from top to bottom they will be wired: black red blue black red blue etc. You will measure 120v from any of the 3 hot colors to white (neutral) but 208v from black to red, red to blue and blue to black.
What is normal phrase of copper?
Question does not make sense. Do you mean "phase"? If so, I'd suggest that malachite is a pretty common copper phase.
You are measuring 480 volt from phase to phase and 280 volt phase to ground but one leg measures 440 volt phase to ground why?
Check for a blown fuse in one of the phase legs.
The liquid phase of oxidized copper is considered an electrolyte?
No
Can you wire up a 240 volt single phase water heater to 277 volt single phase?
no
