Why is the voltage in rural areas unstable? What should I do if the rural voltage is low???

Now this phenomenon is much better, because basically every quarter the substation will be cut off for maintenance, and the power and voltage of the substation will be adjusted in real time, so the phenomenon of voltage instability is much better.

I remember the most serious voltage instability in my house is the summer of one year, when the home can install air conditioning is very few, basically rely on the electric fan, at noon is really hot to death, every family is on the electric fan, so the power is overloaded, at the beginning of the fan is also very fast, until I heard that someone turned on the air conditioner, over, the fan is going to turn away, can only turn off the power in order to protect the fan.

The reason for this situation is that the electricity sent by the substation is too small and not enough to use, such as the peak period of electricity consumption, what lunch meal, summer vacation evening, as long as the electricity consumption comes up, the voltage will be unstable, thinking that many rural electricity configuration is still the original basic demand, do not add some refrigerators, computers, air conditioning equipment with large electricity consumption.

There is also the problem of household wire, now go to the countryside to see that many families still use aluminum wire, because aluminum wire is cheap, but the resistance of aluminum wire is larger than that of copper wire, once the electricity consumption increases, the aluminum wire will heat up badly, the resistance value will continue to increase, the same voltage comes in, the amperage of this wire will decrease, then it must affect the voltage, and the voltage will fluctuate.

There is also the fact that the wire used by many families in rural areas is not the national standard, or not all copper wire, which can not play a good role in conduction, such as the square wire, the purchase is also around, not to mention the unsafe, once the power increases, the wire will be packed, causing voltage instability, and even fire.

Slowly the state is also improving the situation, and now most of the rural electricity is completely sufficient.

I think there are two reasons for voltage instability in rural areas.

First of all, it must be related to the technical aspect, many lines and equipment and other tools in the countryside are relatively old, and the quality is not particularly good, so that the voltage is not balanced enough, unlike the equipment in the city is of good quality. In the countryside, you can find a phenomenon that as long as there is a little wind and rain, the warranty circuit is broken, and then someone needs to repair it, sometimes it is broken at night, and the power outage is not good until the next morning. And it is necessary to replace those lines frequently, although the change is diligent, but the quality is not good, or the bad is relatively fast.

We should all know that there are a lot of trees and other things in the countryside, and most of the places where those circuits are installed have trees close to them, and these trees also have an impact on voltage and other problems. Unlike in the city, where the line is installed, there will be no other things blocking and impacting.

Another point is that the management of routes in rural areas is not reasonable enough. Rural areas are not like cities, they are all gathered together, and those lines are also very convenient to manage, and such a concentration is very convenient for the management of those electricians.

The countryside is different, as long as people who have been to the countryside should know that every household in the countryside is particularly scattered, although there are not many people in a village, but do not know how large the dispersion is, it is not easy to manage in this aspect, and the personnel are simply not enough to manage these, which will definitely affect the stability of the voltage. Whether it is a good management of a decentralized point or a good management of a centralized point is something that you should know without asking.

In addition to these two points, there should be other reasons, the power bureau must be more inclined to the use of the city, for the rural areas will certainly not pay too much attention, the transmission of electricity in the city occupies a relatively large area, so that when the urban use is more frequent, the use in the rural areas will definitely not be stable enough.

Find the power supply unit: the normal single-phase power supply should reach 220 volts, and the normal voltage range is about 7% to 10% of the rated value. If your home voltage is unqualified, you can report to the local power supply company in time, and the power supply company has the obligation to come to the door to do relevant testing to ensure that the power supply voltage is within the national standard.

Buy wide-voltage appliances: Today's appliances account for voltage fluctuations. If the voltage in rural areas is low, it is recommended to use wide-voltage household appliances, which have a wide voltage range, and do not worry too much about low voltage in time.

Precautions for voltage use.

Avoid the simultaneous use of high-power electrical appliances: It should be noted that if the power supply in rural areas is tight, and the power of electrical appliances at home is large, and they are turned on together for a long time, it is inevitable that the circuit will be overloaded, resulting in low voltage, causing heating and causing the fuse to blow, causing automatic tripping of the air switch, and in serious cases, it will lead to fire. Do not use high-power appliances at the same time, especially during peak periods.

install a power regulator; The voltage regulator has a voltage stabilization function and has an automatic power-off protection function, there are many voltage regulator brands on the market, try to choose products produced by well-known brand manufacturers, you should first look at the product manual, certificate and warranty card is complete.

Turn off (unplug) all electrical equipment in the home; Detect whether the incoming voltage is stable; If not, measure whether the voltage is stable from the meter input.

Let the property power industry let them see if there is a problem with the system voltage and the "transformer". 300V should be the fault of the transformer.

Buying a generator can solve the problem.

There are several reasons for voltage instability: 1. The power consumption of the same line is overloaded, and the wire is not large enough. 2. It may be that the line joint of your brake is loose, the wire contact is poor, 3, the gate knife is damaged, and the contact contact is poor.

Buy an automatic voltage regulator + small UPS, I am using this configuration now, I used to always restart, I feel great after using it, if the electrical load is too large, it is recommended to install a voltage regulator, protection switch, voltage instability is very unfavorable to electrical appliances, and sometimes there is danger. You can also report the nearby electricity consumption situation to the local power supply department for a comprehensive inspection, find out the reason, and solve it specifically.

Report the power grid, now it's not all the power grid directly collects your money, the power grid should be able to provide services.

It could be that there are people in your area who use high-power equipment.

The question is that the greenhouse motor can't move.

Ask a monophasic.

Question: There is no three-phase electricity.

Personally, it is recommended that you buy a larger voltage regulator, you use a multimeter to measure how much the minimum voltage can be, and then choose a voltage regulator in the effective voltage regulation range, but because the air conditioner is equipped with a motor, the power of the voltage regulator you buy should be amplified by 3 5 times, that is to say, you have to buy a voltage regulator above 10k.

It should be nice to plug in a regulator. In addition, the fire wire used in rural households is assigned by the electrician according to his ideas, and if you can contact the electrician, it will also be helpful to ask him to help you change a fire wire with a higher voltage.

Just buy a big UPS.

In winter, heating equipment is often used, and the electricity consumption is relatively large. Therefore, it is often encountered that the voltage is low or the voltage is unstable, which will cause the electrical appliances to be easily damaged. So how to solve the low voltage in rural areas?

Let's take a look at the relevant knowledge, I hope it can help you. How to solve the low voltage in rural areas? 1.

Find a power supply unit. The normal single-phase power supply should reach 220V, and the normal voltage range is about 7% to 10% of the rated value. If your home voltage is unqualified, you can report it to the local power supply company in time, and the power supply company has the obligation to come to the door to do relevant testing to ensure that the power supply voltage is within the national standard.

2.Buy wide-voltage home appliances. Today's household appliances have taken into account voltage fluctuations.

If the voltage in rural areas is low, it is recommended to use household appliances with a wide voltage range, the voltage range is relatively wide, and there is no need to worry too much about finding the voltage in time. 3.Avoid using high-power appliances at the same time.

If the power supply in rural areas is tight, the power of household appliances is high, and they are turned on together for a long time, it is inevitable that the circuit will be overloaded and the voltage will be too low, resulting in heating, fuse blowing, causing the air switch to trip automatically, and even a fire will occur in serious cases. Do not use high-power appliances at the same time, especially during peak hours. 3.

Use energy-efficient household appliances. For example, the purchase of lamps, microwave ovens, ovens, refrigerators, air conditioners, etc. It can be used as the first choice for energy-saving home appliances, which is more energy-efficient than ordinary home appliances.

4.Install the power conditioner. The voltage regulator has the functions of voltage stabilization and automatic power-off protection.

There are many brands of voltage regulators on the market. Try to choose products made by well-known brand manufacturers. You must first check whether the product manual, certificate of conformity, and warranty card are complete.

The steps on how to solve the low voltage are as follows:1. If it is caused by a thin line and large resistance, in this case, the wire with a large cross-section needs to be replaced.

2. If the capacity of the transformer is small, it is also necessary to negotiate with the power company and ask it to replace the transformer.

3. If the power supply capacity is insufficient, you can only negotiate with the power supply bureau to increase the capacity. In addition, if the electrical load is heavy in summer, the voltage regulator can only be installed at home.

Low voltage is damaging to household appliances. In particular, it is more harmful to refrigerators and air conditioners, because the voltage is low, the starting current will become larger, and the temperature is high, and it is easy to burn the electrical appliances. Televisions are more resilient and less harmful.

The solution to the low voltage in rural areas is to apply to the power management department for transformer capacity increase, which is the best solution.

Any idea what the minimum voltage is? Is it within the input voltage range of your home auto regulator?

What regulator of yours!?The kind of simple skipping with the relay!?If this is the case, it is better not to use it. To use an autotransformer sliding type.

Different solutions should be adopted according to different causes.

If it is far away from the transformer, it can generally be solved by thickening the wire. The use of voltage regulators also has a certain effect.

If it is due to the low power of the transformer, the only way to change the transformer is to replace it.

1. Buy wide-voltage household appliances

Since voltage fluctuations have been considered in the design of former household appliances, household appliances have a certain range of voltage use. However, wide-voltage household appliances are specifically designed for rural areas and have a wider voltage range than urban household appliances, so rural residents can buy as many wide-voltage household appliances as possible.

2. Avoid peak power consumption

During peak power consumption, the voltage is usually relatively low. If the voltage is below 150 volts, the more important appliances in the home will be turned off. Because the low voltage at this time may damage the appliance.

Avoid low peak power consumption. In the middle of the night, electricity is usually consumed less than during the day, when the voltage usually rises. If the voltage is higher than 240 volts, it is also necessary to turn off some necessary appliances.

Because too high a voltage may damage the appliance.

3. Buy a power conditioner

This is arguably the easiest and most effective way to do it. Modern voltage regulators have full voltage regulation, automatic power-off protection and delayed output power supply function, which can provide all-round protection for household appliances.

However, there are many types of voltage regulators on the market, and the level of manufacturers is not the same, so consumers should still choose some qualified products produced by well-known brand manufacturers, check whether the packaging is in good condition, and whether the product specifications, certificates and warranty cards are complete. At the same time, before choosing a voltage regulator, they should first determine the amount of electricity used in their home so that they can choose the right voltage regulator.

Note: If you are using the same phase of electricity as your neighbor, you must check the wiring immediately to see where the connector is not connected well or the live wire is grounded. The method is to "pound" the wire little by little with a dry wooden pole, observe the light change while pounding, find the flashing point, turn off the power and reconnect the wire or wrap the wire.

If you don't use the same phase of electricity as your neighbor and you can't find out the bad wiring, then you can only buy a voltage regulator.

Voltage is what drives the directional movement of the charge to form an electric current. The reason why the current is able to flow in the wire is also because of the difference between high and low potential in the current.

The low voltage during the day is caused by high power consumption and distance from the power supply.

If it is household electricity, and the load is small, you can use a voltage regulator, if it is village electricity, it is recommended to install a low-voltage reactive power compensation device or adjust the position of the transformer to increase the voltage.

In addition, the lower voltage limit should not be lower than 10 of the rated value, otherwise, you can go to the local power supply department to solve the problem and ask them to provide qualified quality electricity**.

The low voltage in broad daylight is caused by large power consumption and far distance from the switching power supply.

If it is home electricity and the load is small, you can use a voltage regulator, if it is electricity in the village, it is proposed to modify the low-voltage reactive power compensation equipment or adjust the transformer head to increase the voltage.

In addition, the voltage limit must not be less than 10 of the rated value, otherwise, you will need to deal with the local power supply system department and ask it to provide qualified quality electricity**.

An electrician can be called in to carry out the repairs. Or check at your local power station.

First, the reasons for the formation of rural voltage quality1.Three-phase load imbalance2.The cross-sectional area of the wire is small, and the line is agingAccording to the resistance calculation formula r= l s, when the resistivity and wire length are constant, the smaller the cross-sectional area of the line, the greater the line resistance, and the lower the line resistance of the low resistance voltage line when the electrical load (current) is constant.

The greater the voltage drop generated by the wire through which the wire passes, the more the wire will also increase the resistance of the wire and increase the voltage drop. In economically underdeveloped counties and cities and remote rural areas, due to the lack of capital investment, the rural power grid is weak and the degree of electrification is low, and high-power electricity is pouring into rural areas. Unreasonable grid planning and grid planning have not kept pace with economic development.

Due to historical reasons, county-level subsidiaries are responsible for their own profits and losses, and cannot invest a lot of money in the transformation of rural networks.

3.The line power supply radius is largeDue to the reasons of capital investment, comprehensive economic benefits, geographical location and economic level, the layout of power supply points and overhead lines in some rural areas is unreasonable, resulting in the power supply radius of rural power supply low-voltage lines is too large. Due to the limitation of the level of economic development, county-level power supply enterprises are unable to invest large amounts of money, and some transformers used in rural areas are responsible for load distribution and distribution circuits.

Rural housing and road construction plans are chaotic, and the construction of new rural power grids is often resisted by villagers, resulting in an inappropriate distribution of power transformer locations and low-voltage lines.

Second, measures to improve the conditions of low pressure in rural areasDuring the construction of rural stations, it is necessary to understand the load situation of users, analyze and count, evenly distribute users with similar load curves to the three-phase, and compress the three-phase unbalance state and unbalance time to the minimum as much as possible. The new amount of electricity, the change of user load may lead to the change of the already balanced load, become unbalanced, the management of three-phase load imbalance also depends on dynamic, normalized maintenance in the later stage, the use of technical means to real-time monitoring of three-phase current, or analysis of three-phase electricity load, timely adjustment of some users from heavy load phase to light load phase or split part of the user, so that the three-phase line load to achieve balance.