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What is the minimum resistance required between phase and neutral?
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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.
What is the resistance between phase and earth?
You measure at a socket, you should measure well less than one ohm resistance between earth and neutral. .my answer: theoritically it is zero
How neutral brings the power to the source?
By creating a loop of equal resistance
How do you determine the minimum allowable voltage between line and neutral?
The voltage between line and neutral is determined by the regulations in your country. This is specified as a nominal (named) voltage, together with its allowable variation expressed as a percentage of that nominal value. In the UK, for example, this is 230 V (+10%/-6%).
What is the reason why the neutral is not used on high resistance grounding?
The question doesn't provide enough detail to give a definitive answer. The neutral PD is often used in protective functions on high resistance grounded generators (when grounded through a transformer). High resistance grounding limits the use of transformers - you must be using balanced loads, since very little current will flow (typically around 5-20amperes max) to the neutral. Because of this, phase to neutral values (such as voltage) are meaningless. Any current flowing in the neutral will cause an offset in all three phases from neutral. Since the neutral is high resistance grounded, it does not take a significant amount of current to cause significant offset.
Why should you balance an electrical panel?
To keep the current on the neutral to a minimum.
Why earth pin is thicker than live and neutral pin?
The earth pin is physically thicker to create a larger surface area. When it makes contact with the ground in the receptacle it is more positive and secure a contact. Also a larger surface area reduces the resistance between the two surfaces which is what is required in the grounding system.
Why is there resistance between the line and neutral of a receptacle?
The source is finite. Any real world power source is finite. You will see the same thing with a battery, for example (the battery has internal resistance). If you have no voltage at that recepticle, the resistance should approach infinite due to an open circuit (open breaker, fuse, broken conductor, etc.).
What is the difference and how to differentiate between neutral and hot wires if both wires have the same color?
If the electrical box is grounded, check with a tester, the "hot" wire will have a voltage to the the grounded box the neutral wire will not. If the box is not grounded, with the breaker supplying the voltage turned off, use a tester on the resistance scale to check for continuity between the wires and a cold water pipe or some other grounded medium. The neutral will have continuity between the wire and a ground the "hot" wire will not.
What is the difference between amphoteric and neutral compounds?
difference between amphoteric solutions and neutral solutions
What is a restricted earth neutral system?
appropriate resistance is to be inserted between the neutral point of the transformer and the earthing mat to restricted earth fault current. for this purpose a sensitive earth leakage relay is used. in the event of a fault, fault current returning to the system neutral trips an earth leakage relay and disconnects the supply. anand r. ambekar
Why are there 2 prongs on a plug?
It is the minimum required to complete a circuit. You need a live and neutral. A two pronged plug does not have a saftey Earth connection. The device operated must be double insulated and have no metal parts visible, that could become live.
