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Would voltage in a three phase supply change if neutral wire is disconnected?
Wiki User
∙ 6y ago
No, The voltage will not change. The neutral is basically a ground and is used in conjunction with the phases to create another voltage and act as the return line in an electrical system. "Depending on the system that you have". If you have a 480 volt and used a neutral with it you would have 240 or 277 volt. The 277 volt is what is normally used in office lighting. If you have a 208 or 240 three phase system using a neutral you end up with the 120 volts that is used for just about all normal lighting, receptacles and general use devices used everyday.
Additional Answer
While the supply voltage wouldn't change, the voltage across each phase of an unbalanced load may change if that load is unbalanced.
Wiki User
∙ 6y ago
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How can you save your equipment when the neutral wire becomes disconnected?
There is nothing to save. When the neutral wire becomes disconnected the equipment just stops operating. Disconnect the power supply, reconnect the neutral and the equipment will start operating again.
What is the function of base collector and neutral in transistor?
The collector is connected to a input voltage that is always on, like the psu powering the entire circuit, the base connected to an output on an IC (which is feeble compared to the supply voltage) and the "neutral" which is called the emitter is connected to the power input on something that requires lots of power e.g. a solenoid or relay.
Can the power supply provide a negative voltage output?
Yes. Depending on the design, the power supply can provide any voltage desired.
How do you amplify voltage?
if it is an A.C supply we can amplify by transformers, transistors, voltage doublers and voltage multipliers. but if it is an D.C supply, the voltage can be amplified only by means of choppers (i.e buck converters, boost converters and buck boost converters)
What is the peak inverse voltage rating of diode in bridge rectifier?
2x the peak supply voltage!
How can you save your equipment when the neutral wire becomes disconnected?
There is nothing to save. When the neutral wire becomes disconnected the equipment just stops operating. Disconnect the power supply, reconnect the neutral and the equipment will start operating again.
What is the total of a phase to earth voltage on 11000 volts?
An 11,000 volt three-phase supply has a voltage of 6351 from live to neutral, when there is a neutral wire.
What is wrong with your single phase electricity meter if it does not show any numbers in the meter reading panel?
One of the conditions that would cause this is that there is no supply voltage to the top of the meter. Another problem could be, the neutral tickler wire has become disconnected.
How do you reduce neutral to earth voltage in three phase system?
It is done by connecting the neutral to earth at the transformer that produces the three-phase supply. If the three phase wire supply equal currents, there is no current in the neutral wire and its whole length stays at earth potential, but if there is current in the neutral it produces a small voltage on the neutral at places away from the transformer.
What happen if the value of the dc supply is changed in amplitude modulation?
The rf output voltage should be proportional to the signal voltage in AM. A change in the DC supply voltage should also cause a proportional change to the rf output voltage.
How do you change the brightness of the bulb?
Increase the voltage supply.
Why is it that when you touch the neutral in a box that is not connect to the panel cause the test light to come when touching the power wire?
It shouldn't. The open end of a non connected neutral should have the same potential as the voltage feeding the circuit. The only time a voltage will show is when the return neutral is tested with a meter to the neutral bar or the ground return bar. It will then show what the supply voltage to the connected load is. Once this neutral is connected to the neutral bar there will be no voltage shown across the test meter between the neutral and the neutral bar or the ground bar.
What happens to supply voltage if additional resistance is connected in parallel circuit?
No change in supply voltage as additional resistance is connected in parallel circuit.
Do you add electrical supply voltage and induced voltage of a coil to get total voltage on the coil?
The induced voltage acts to oppose any change in current that is causing it. So, if the current is increasing, then the induced voltage will act in the opposite direction to the supply voltage; if the current is decreasing, then the induced voltage will act in the same direction as the supply voltage.
The output voltage between phases of ac 3 phase supply is 240V?
No, this voltage appears ACROSS individual phases, or BETWEEN a line conductor and the neutral
What is the voltage for a single phase from a 415 volt 3 phase and neutral supply?
240V. 415 / 1.73 = 240
Can use 400VAC 3-Ph industrial socket on 230VAC 3-pH supply?
The common European supply voltage is 400 v three-phase. That is the voltage between live lines, and there is 230 v between neutral and each live line. A 230v three-phase supply would have 173 volts from live to neutral and that kind of supply is extremely rare.
