There is always a situation of unstable voltage in life, how to deal with it?

Electric has changed our lives, but it also fits our lives. However, the problem of voltage instability can also affect our daily life. Unstable voltage can affect power safety, damage to household appliances, and even throw electrical fires.

How to deal with the problem of domestic voltage instability? From the actual situation, the unstable voltage is found out, and the problem of unstable voltage is solved.

From a physical point of view, an outdoor powerline area is a relatively small or outdoor powerline. During transmission, the line losses are too great and the power transmitted to the room is small. At this point, once the electricity is added to the home, when the air conditioner is turned on, the indoor voltage will be in an unstable state, such as the air conditioner, washing machine, refrigerator.

If the current and voltage are unstable, almost accidentally, you can install a voltage regulator to ensure electrical safety in your home. If voltage instability is a long-term phenomenon, go directly to the local power bureau and apply for the replacement of the outdoor transmission line. After all, the voltage instability of outdoor voltage is not a small part.

Over time, the danger will become more and more serious.

Many homes have unstable voltages, most of which are caused by insufficient capacitanceIf the effective capacity of the electrolytic capacitor is relatively small, then the voltage of the household will be in an unstable state all the time. In fact, at this time, an electrolytic capacitor can be replaced with a relatively large effective capacity, so that the voltage can be well enhanced in the process of controlling the output of the chip.

Once the starting voltage is reached, when the power supply is restored, in fact, the defect of weak voltage can be obtained, and it can be changed well. However, the causes of voltage instability are actually more complexIf we say that after replacing the relatively large capacity electrolytic capacitor, such a problem still occurs.

Then you can find out if it is due to the excessive ripple of the circuit, and there is an unstable situation, which can appropriately adjust the voltage of the power supply. If the ripples of the control circuit are too large and unstable, then the existing parameters can be adjusted by observing the waveform of the reference to meet the operating conditions of the reference.

In the face of this situation, we can directly replace the old wires, or it may be due to the weather, rain and thunder will also cause the voltage to be unstable, or we can install a lightning rod.

First, check whether the wire is aging; Second, check whether the transformer is damaged, and if it is damaged, it should be repaired immediately; Third, replace the power supply box.

You can turn off several electrical appliances with relatively high power, so that the voltage will not be so unstable.

1.The outdoor power supply line is long or the outer line section is small, resulting in large line loss. Once the equipment with large power consumption in the home is turned on (such as induction cooker, refrigerator, air conditioner, etc.), the voltage drop is large and the voltage is unstable.

2.The indoor wiring is unreasonable, the main line cross-section is too small, and the voltage drop is large when the equipment with large power consumption is started, resulting in the instability of the voltage of the same circuit.

3.Neighbors who use high-power appliances can also have an impact on the voltage in their own homes, resulting in unstable voltage.

Voltage instability solution:

If there is a deviation in the voltage, resulting in unstable voltage, in this case, it is necessary to choose the appropriate transformer, and at the same time, it is necessary to reasonably reduce the blocking of the line.

In addition, it is possible to improve the power factor to solve the problem of voltage instability.

If there is a fluctuation in the voltage, the voltage will be unstable. If it occurs occasionally, then it can be detected that the power grid is normal and can be used normally.

However, if this phenomenon occurs frequently, it is necessary to check the voltage in time to see whether the frequency of the voltage is within the allowable range, if it is not within the normal range, it is also necessary to appropriately increase the adaptation range of the inverter.

Voltage formula: If the magnitude and direction of the voltage do not change with time, it is called a steady voltage or constant voltage, referred to as DC voltage, which is represented by the capital letter u. If the magnitude and direction of the voltage change over time, it is called a fluctuating voltage.

For circuit analysis, one of the most important fluctuating voltages is the sinusoidal alternating current voltage (abbreviated as alternating voltage), which changes periodically in magnitude and direction according to the sinusoidal law over time.

The instantaneous value of the AC voltage is indicated by the lowercase letters u or u(t). The device that provides voltage in a circuit is a power supply.

In life, sometimes the lights will flicker on and off, but this is actually caused by unstable voltage. For the voltage instability at home, many friends do not know the reason for the instability of the voltage, and they do not know what to do about the unstable voltage, so let you and I tell you next.

The hazards of voltage instability.

Unstable voltage has many safety problems with electricity, which will cause direct damage to the electrical appliances at home.

Causes of voltage instability.

There are two aspects to voltage instability. One is voltage deviation and the other is voltage fluctuation.

Voltage deviation is a period of time in which the actual voltage amplitude changes "slowly" and deviates from the rated voltage, and the deviation is steady-state, which is what we call the voltage is high or low.

The magnitude of the voltage deviation mainly depends on the operation mode of the power system, the line impedance, and the change of active and reactive load. The voltage deviation is mainly the position of the electrical equipment and the running time, such as the low voltage at the end of the line, the voltage at the back of the night and so on.

What to do if the voltage is unstable.

1. Avoid peak electricity consumption. The voltage is generally low during peak periods, and if the voltage is lower than 150 volts, you will need to turn off the more important appliances in your home. Because the low voltage at this time may damage the electrical appliance.

2. Avoid low peak electricity consumption. In the middle of the night, electricity consumption is generally less than during the day, and the voltage is usually higher at this time. If the voltage is higher than 240 volts, it is also necessary to turn off some necessary electrical appliances.

Because too high a voltage may damage the appliance. 3. Do not use high-power electrical appliances. Sometimes the voltage in the home is too low or too high because of the use of high-power appliances in the home, such as induction cookers.

Usually its power will reach several kilowatts, and when it is turned on, the voltage will drop instantaneously, resulting in voltage instability. Therefore, if you are using high-power electrical appliances, it is best to turn off some necessary electric boosters first. After that, open it again and include early access.

4. Install a voltage regulator. This is an effective way to solve voltage instability. With the installation of a voltage regulator, you can safely and stably use electricity at any time and anywhere. It is important to note that it is best to seek professional help when purchasing and installing a voltage regulator.

5. Install UPS. If you have the conditions, you can use a UPS to stabilize the voltage. UPS is also known as uninterruptible power system, it not only has the advantage of continuing to use when the power is off, but more importantly, it can stabilize the voltage very effectively.

Because its power supply is output through a built-in power supply. If you use a UPS, the voltage becomes very smooth.

1. In the face of this situation, we can directly replace the old wires. Voltage instability is generally due to the aging of the wire, and the resistance begins to increase, but the voltage stability due to this situation is usually transient.

2. The voltage is unstable due to the weather, as we all know, in the thunderstorm, the voltage is easy to be unstable, sometimes large and sometimes small, because this situation is mostly external interference, we can install a lightning rod, or use electrical appliances after the thunderstorm.