Build Daily

Engineering Systems

August 12, 2017 18:07

How to find and correct the phase and neutral electrically

How to find the phase and neutral?

main options for finding phase:

  1. When you enable the indicating device.First you need to turn off the electricity in our two cords, then cleaning is performed (1-2 cm of insulation is removed).In order to escape the self short, these electrical lines bred.
  2. necessary to find a phase lead.To do this, turn on electricity and using the display with your finger to make a screwdriver to touch the handle of the iron.Wire is a phase when the screwdriver on the lighted lamp, respectively, another cord is zero.

indicator screwdriver

Also, there are cases where wiring is made with three cords.In order to properly and accurately to understand where and how to determine the ground wire is necessary to use this method:

  1. comes to the aid of a multimeter.Phase wire is recognized by a probe.This instrument should be included in the range of non-permanent Voltage over 220
  2. cycling two rods multimeter, do touch one to phase, and the other to any of the selected strings.Write the value that indicates when the device
  3. will occur in parallel connection, ie the phase and zero, the current must be 220 volts.Touching phase to the protective transmitter Voltage will be correspondingly lower.

multimeter

Existing techniques to counter not shook

The most common methods of stopping the counter, who instilled in society, they will be discussed below:

  1. Using a screwdriver, which tightens up the numbers shown on the drum electric mechanism
  2. It can be welded in the inductor circuit is strained, the difference is the size of the wire.Just use the "reed contact" with the help of his computer, you can stop an ordinary magnet
  3. Changing the meter panel to another
  4. Harvesting pliers pair of teeth reading electric mechanism
  5. We build conductor in the coil circuit.It must be remembered that it should be current
  6. can fasten the magnet mounting screw, which is located near the disk.Because of this, the work of his dulled
  7. reduces the number of coils of our electric vehicle

Electric meter

Such stopping methods have both pros and cons.For example, the positive aspects include immediate action to stop and work nenakruchivaniya apparatus, and those factors can be attributed to the negative frames, when the machine is on the street, at the high post and is very well sealed.In this case, all of the methods discussed above are not appropriate.

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