Why can t 380V 101 fire detect 220V? 5

Three-phase power line voltage 380V. Phase voltage.

220v。If 220V cannot be measured, the wiring is incorrect. There is a place for a broken circuit. The line of fire and the zero line are broken.

If 220V cannot be measured by 101 fire, it means that the power supply line is not energized, the neutral line live wire is open, or the measuring instrument is damaged and the measurement operation is wrong.

380 volts are a spirit and a fire, and 220 volts cannot be measured, mainly because of the phenomenon that the neutral line or the live wire is broken.

There are two possibilities that 220 volts will not be measured, one is that the live wire is disconnected and there is no electricity. The second is that the zero line is suspended and not really grounded. This can lead to a non-measurement of 220 volts.

In this case, it is possible that the 380V power supply is out of power and the neutral line is disconnected, just in these two cases!

380v。101 fires were measured. It's 220. This is normal. If it's two fires, it's 380. Because it's a multiple of the voltage. So it's 220 volts.

One hundred and one fire can be measured, but if it is two fire wires, it cannot be measured.

You can use the voltage ratio to test the amplitude of its voltage, generally the voltage we use is 220 volts is normal. If it is less than this data, it is also normal, as long as it is not too small, then his electric board is powered on normally.

The live wire is out of power, or the zero line is out.

This is usually because your circuit is malfunctioning.

This should be a disconnection in the line of fire.

Check it out.

It's normal 11101 fire, you can't guess that there may be a problem with 225, maybe the next problem, you guess it's two lines of fire, right? You re-measure.

There is no reliable grounding of the neutral wire!

The 380V ones are all in the line of fire. The three strands are all firing wires. A strand of zero.

Do you have to pump the voltage of the burden of the clothes? This is impossible, only two fires with a voltage of 380

How to get a v101 train, after saying that, I feel that I should be inspected.

I don't think 380 Wei Yiling and his gang can measure 220V because its voltage is too high to reach the overrun range.

Because it is a 380V line, of course, it is impossible to measure the voltage of 220V.

Many times it may be improperly operated, or it may really be out of power, check it yourself.

There is a soul in the heart, and the ghost has earned a lot.

380V low-voltage line, there is a phase is 110V is the live line, the voltage measurement is normal, sometimes it can start, sometimes it can't start, what is the situation.

Hello dear! 380V low-voltage line, there is a phase is 110V is the live wire, the voltage measurement is normal, sometimes it can start, sometimes it can not start, what is the situation is generally the lack of a phase of the 3-phase circuit to cause the voltage 110V. If there is a phase voltage that is low, it means that the three phases are unbalanced, and the load in this phase is large.

The load end of this phase can be evenly distributed to the other two items, which can be solved! Generally, the one-phase line is broken or the contact is poor, and the three-phase 380V, if there is a broken wire, the voltage will be insufficient when measured by a multi-meter meter.

It is recommended that you first use a multimeter to measure whether the line voltage of the live wire to the live wire is 380V, if so, it means that you have a bad contact with the zero line, if the live wire voltage becomes 26-270V, it means that you have good wiring, which is caused by the low power supply voltage.

Hello: 1, under normal circumstances, [lineThe voltage is 380V,phaseThe voltage is 220V.

2. Neutral line connection [Transformer neutral pointIf the zero lineOpen circuit, or poor contact, this will happen.

3, pleaseQualifyingA professional electrician will inspect and repair it.