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== == == == It is true. Damage will most likely result somewhere, maybe not everything. When a neutral on a multi-wire circuit is opened (open-circuited) (removed) (cut) while things are under load, the voltage will change at the loads. Some loads will get more than normal, some will get less. The damage usually occurs on the side that gets MORE voltage. For example: your TV may be on a circuit that goes from 120volts to 50 volts, while your light bulb goes from 120volts to 180volts and blows. It all depends on how "balanced" the circuit is. In theory, if the loads are perfectly balanced then the neutral is not needed. In reality loads vary constantly, therefore, the voltage will vary if the neutral is open-circuited. That means running with an open neutral is something that anyone with any smarts at all will not do. It is absolutely possible to damage equipment by opening the neutral in some circumstances. <><><>
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
If you do this work yourself, always turn off the power
at the breaker box/fuse panel BEFORE you attempt to do any work AND
always use an electrician's test meter having metal-tipped probes
(not a simple proximity voltage indicator)
to insure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
What else can I help you with?
Do you need a neutral in your 3 phase disconnect to pump control?
Not usually, if the three phase pump is a three wire pump then the disconnect does not need a neutral. The pump control may or may not need a neutral depending on the voltage system that the control panel needs.
Can a 3 wire system create neutral voltages due to Harmonic distortion?
Yes, a 3 wire system can create neutral voltages due to harmonic distortion. Neutral voltages can also be caused by load imbalance between the two hots. It is normal for neutral to have a voltage differential relative to ground. Neutral is, after all, a current carrying conductor. In a well balanced system, however, there is little (theoretically zero) current in neutral.
How emergency generators onboard taking load automatically?
There is usually a reserve switching device or scheme which is activated when the power coming from the main grid disappears. When such an outage happens, the scheme will sense it and disconnect the circuitry from the main source of power (grid) and start up the emergency generators. When the main power is restored, the system will connect you back to it and turn off the emergency generator.
Can the neutral conductor be downsized in a 3 phase electrical system?
Yes, you can reduce the neutral in a three phase system. you must figure the unbalanced current the neutral will carry and also make allowances for any harmonics that may be present.
How do you identify that in the system the neutral is floating or not?
do a continuity test between the neutral and the metal enclosure of the equipment containing the neutral. infinity reading [ open line ] indicates floating neutral. Steve sorensen jr
Do you need a neutral in your 3 phase disconnect to pump control?
Not usually, if the three phase pump is a three wire pump then the disconnect does not need a neutral. The pump control may or may not need a neutral depending on the voltage system that the control panel needs.
What is gndt reading?
GNDT reading stands for Grounded Neutral Disconnect Time. It refers to the time delay set in some electrical protection devices to disconnect a grounded neutral system from the mains in case of faults to protect against electrical hazards.
Can a neutral bar be used as a ground bar in an AC disconnect?
No, a neutral bar should not be used as a ground bar in an AC disconnect. The neutral and ground serve different purposes in an electrical system; the neutral carries return current, while the ground provides a safety path for fault currents. Mixing these functions can create safety hazards and violate electrical codes. It's important to use separate bars for neutral and ground connections to maintain system safety and compliance.
What is the purpose of a wire AC disconnect and how is it used in electrical systems?
The purpose of a wire AC disconnect is to provide a way to safely disconnect power from an electrical system. It is used to isolate the electrical system from the main power source for maintenance or in case of emergencies.
What conductor should be grounded in a four wire three phase system?
The neutral conductor is typically grounded in a four-wire three-phase system to provide a path for fault currents to return to the source and to stabilize the system voltage. Grounding the neutral also helps to protect equipment and personnel from electrical hazards.
What is the purpose of an outdoor disconnect switch and how does it function in electrical systems?
An outdoor disconnect switch is used to safely disconnect power from an electrical system. It functions by interrupting the flow of electricity between the power source and the system, allowing for maintenance or repairs to be done without the risk of electric shock or damage.
What happens when your Wii system does not power on?
Nothing it might be disconnected or it might be something else. It happens to me too so what i do is disconnect it for a while about 5 to 8 minutes and then connect it again.
What happens if the source of 220 Volts originates from two legs of a 3-phase circuit?
Nothing happens. This is a normal way to obtain a single phase system from a three phase system.
Which wire is the neutral wire in a 110 volt system?
In a 110V system, the neutral wire is typically colored white in the United States. It is the wire that completes the circuit and carries current back to the power source. It is important to always follow safety guidelines when working with electrical systems.
How do you disconnect a theft deterrent system?
First, disarm the theft deterrent system. Then you can power off and disconnect it.
What is neutral on an air conditioner?
In the context of an air conditioner, "neutral" typically refers to the neutral wire in the electrical system, which completes the circuit by returning current to the power source. It is essential for the proper functioning of the unit, especially in systems that require a 240V supply, where a neutral wire may be necessary for some components, like control boards or sensors. Ensuring a proper neutral connection helps prevent electrical issues and supports safe operation of the air conditioning system.
Is there an advantage of having a neutral wire in an unbalanced electrical system?
A neutral wire is essential in a three-phase star (or wye) connected system supplying an unbalanced three-phase load. Without a neutral, the voltage across each of the loads may become unbalanced, too.
