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In order for a neutral to become live, its connection to ground must be severed. This is dangerous, and must be fixed. In the worst case scenario, with all grounds open, a typical 13.2kV distribution circuit running a 120/240V transformer can generate 7.6kV to ground. That is a LOT more than 120V, which is the US NEC limit for any conductor in a home relative to ground. Besides being an electrocution hazard, this can destroy nearly all electrical devices in the house. It is also possible that a wiring error exists. This is also dangerous and must be fixed.
What else can I help you with?
Can an electromechanical energy meter work without the neutral wire provided in the meter?
If the meter has 208-240V coming to it, no the neutral doesn't go through the meter. If the meter has only 120V incoming power such as many RV parks then the neutral does go to the line side of the meter or it won't work.
What is the cable size for a 3KW motor 350 meter run for cable 240v?
For a 3KW motor with a 350-meter run and 240V supply voltage, you would typically need a cable size of around 16mm² for proper voltage drop considerations and to prevent overheating. It's recommended to consult with a qualified electrician or use a voltage drop calculator to determine the exact cable size needed for your specific installation.
How do you properly move an electricity meter I only need it lowering by 2 inches?
Disconnect the supply with the help of utilty personnel and then start lowering it.Please see that the cable/wires are sufficient for the new location.
How does neutral missing protection work in single phase energy meter?
Neutral missing protection in a single-phase energy meter detects the absence of the neutral wire in the electrical circuit. When the neutral wire is missing, it can result in overvoltage on the load side. The energy meter typically shuts off to prevent damage to the connected equipment in such a situation.
Does the white and ground wire connect to same ground bar in a meter base?
There should be no ground wire in the meter stack from the mast head to the meter base. If the meter base to distribution panel conduit is PVC, then a green grounding conductor must be pulled into the conduit. This green wire is independent and isolated from the neutral wire and should never be terminated together at this point. Only the line service conductors and the neutral wire go through the meter base. The neutral goes through a lay in lug. This type of lug requires the insulation to be stripped of of the wire where it passes over the lug. This stripped wire is then laid into the lug and is secured to the meter base by the removable top piece of the lug. The neutral wire remains unbroken from the mast head to the distribution panel's neutral buss bar. Using this lay in lug the watt meter picks up the neutral wire for the plug in meters operation. If your terminology is not correct and you mean the "distribution panel" instead of "meter base" then the answer is no. There are two individual buss bars in the distribution panel. In some panels there may not be an actual "ground buss bar" but ground screws lined up in a row in the back of the distribution panel's enclosure. In all distribution panels there is a neutral buss bar where all of the neutral conductors from the branch circuits connect. Do not mix the bare ground wires and the white neutral circuit wires under this neutral buss bar.
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.
Where does the supply authorities cable enter a building?
find your electric Meter and you've found the point of entry, or depending on where the electric meter is in the building, you can trace the cable back from the meter to the point of entry.
Why Do not clamp live plus neutral cable in Clamp meter?
A clamp-on meter works by measuring the magnetic field set up around a conductor. Because the currents in the line and neutral conductors flow in opposite directions, their fields cancel and the clamp-on meter has nothing to monitor. So it must be placed around either the line OR the neutral conductor -not both!
Can an electromechanical energy meter work without the neutral wire provided in the meter?
If the meter has 208-240V coming to it, no the neutral doesn't go through the meter. If the meter has only 120V incoming power such as many RV parks then the neutral does go to the line side of the meter or it won't work.
What would the cable size be for a 90 meter armoured cable with a 110 amp supply with a 330 amp start up?
To calculate voltage drop to size the wire, a voltage must be stated.
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 is a main distributors service cable and what is it connected to when first enering a build?
The main supply will first come from the power company to a transformer to reduce the voltage then from the transformer to the weatherhead then through the house meter to the main disconnect on the outside of building then to the switchgears main. The cable coming from the transformer to the meter and to the top of the main disconnect is the Main service cable
What meter has its own power supply?
ohmmeter has it's own power supply
How do you connect an single phase watt meter?
Answer for USA, Canada and countries running a 60 Hz supply service.The wires from the utility connection will be connected to the top terminals jaws of the meter base. The bottom of the meter base terminal jaws will be connected to the top of the first over current device. This will be the service distribution's disconnect switch. The neutral will pass through the meter base with no grounding connection and continue on to the distribution's neutral terminal point.
Does the neutral go through the meter?
Yes, the neutral wire typically goes through the meter. In an electrical system, the meter measures the flow of electricity, including both the live (hot) and neutral wires. The neutral wire carries current back to the electrical panel, completing the circuit and allowing the meter to accurately measure the total energy consumption.
Can you use ohm-meter to measure a resistance between the neutral line N and the ground E?
If the meter is sensitive enough and there is a resistance between the neutral and ground then the meter should be able to detect it.
The main service cable entering a building is first connected to what?
It is connected to the cut out fuse which enables isolation of the circuit from the supply when there is a fault.Additional Information:The service cable is usually connected to a meter fixture and from there to the main electric panel which will have a breaker to isolate the panel.
