Voltage fluctuations occur both at home and in production facilities. Indirectly, this is the fault of the company providing electricity supply services. However, there is a possibility that voltage surges are caused by force majeure circumstances. There can be many reasons for this, but the consequences are always unpleasant. Electrical appliances may fail temporarily or break down completely without the possibility of repair. What can be done to prevent voltage surges? Read the suggested article—we will answer this question.

Causes of Voltage Surges

• The load current in the power supply system can change its parameters. The reason lies in the connection of high-power electrical appliances such as stoves, boilers, and heaters. This problem intensifies in the evening and during the cold season.
• Overloading of a transformer substation. These devices were built many years ago, so they do not meet modern standards of quality.
• Accidents on power lines or cable networks, which occur due to bad weather conditions or equipment wear.
• Poor electrical contact of the neutral conductor. This results in a sudden increase in voltage up to 380 volts.
• Wear and tear of the internal electrical wiring of the building.
• If a powerful consumer is connected to the power line. This can be an industrial enterprise using powerful electric motors or other equipment.
• If lightning strikes the power line (PL). This happens rarely, but it does occur. In such moments, the voltage can reach tens of kilovolts.
• Technogenic causes. A network wire break is not uncommon, so electricity consumers often suffer from such a problem as voltage surges.
• Operation of welding equipment. This cause of surges is often characteristic of rural areas. With improper connection of welding equipment, both the owner and neighbors can suffer from power surges.

We have identified the problem of surges. Now we need to find ways to solve it. We have been dealing with this issue for quite a long time, so we have figured out all the nuances and found the most optimal solution to the problem. You need to buy a voltage relay—a device that, during a power surge, temporarily disconnects all devices to avoid damage.

Voltage Relay Device

The device, or rather its main part, consists of a microprocessor and a comparator. If you choose microprocessor devices, you will ensure a smoother adjustment of the upper and lower activation thresholds. When selecting a voltage relay, you should pay attention to the response speed as the main parameter of the device. The response time should be as fast as possible to protect electrical appliances from the effects of power surges. Modern models react in nanoseconds. You can independently set the response threshold using a potentiometer.

Sometimes voltage relays are confused with stabilizers. Unlike the latter, the relay does not level the network voltage but instantly turns off all electrical appliances on the protected section in case of a power surge. This is why voltage relays are quite effective tools during accidents, bad weather, and the wear and tear of current-carrying equipment.

We offer to buy single-phase and three-phase relays:

• Single-phase devices. This type of equipment disconnects one phase. It is used with a three-phase input for single-phase loads when connecting to an electrical network in the domestic sector. Otherwise, the other two phases will also disconnect.

• Three-phase devices. This type of voltage relay is most often used to protect motors and other consumers on three phases.

If you decide to choose a voltage relay, pay attention to such an important parameter as the current load. This characteristic indicates the power capacity of the controller. For comparison: when installing an automatic circuit breaker in an apartment or a country house, a 16-amp breaker is usually used. In this case, you need to choose a relay with a current load of between 20 and 25 amps.

Advantages of Voltage Relays

In our company, you can purchase high-quality modern devices. They have the following significant advantages:

• Voltage relays can be used in any temperature conditions, both outside and inside (the possible temperature range is from -20 to +40 degrees Celsius);
• Thanks to a wide variety of devices, their models, operational and technological characteristics, you can select a relay for a specific electrical network depending on your financial capabilities;
• The device protects expensive electrical equipment from various accidents as well as from a lack of or excess voltage;
• In our company, you will find a large assortment of voltage relays from which you can choose the best device based on individual selection criteria;
• Installing the relay is objectively simple. With the right desire and internet research, you can install a voltage control device yourself without needing an electrician;
• The devices are modern, and their appearance, even if the device needs to be installed in a visible location, will not spoil the interior;
• With voltage drops and turning off electrical equipment using a relay, the lights work properly. Only sometimes are barely noticeable changes in the light flow visible.

Be sure to use a voltage relay as a barrier to ensure that your electrical appliances, which make life more comfortable, work long and reliably.

If you have questions about how to choose a voltage cutoff device, call our managers or contact them online. They will help you with the selection, answer all your questions, clarify the price of a specific device, and place an order.