1. When choosing a regulator, first consider how much voltage is used in your household appliances?

    Domestic electrical appliances generally use 220V voltage, a small number of residential districts will be 380V to the residential distribution room, but use or connect 220V.

    Generally 110V imported from abroad, such as rice cookers imported from Japan, is also the most common in work. Many users go abroad to buy some high-end household appliances. Many users can not use them when they go to China to distribute household appliances.

    In a word, what kind of voltage does electrical equipment use? Make it clear, 110V or 220V

    2. How big is the power equipment of electrical equipment, that is, how many KW is marked on the product nameplate, and some KVA.

    Household electrical equipment power is generally small, basically within 5 KW, then large will be used to 380 V of electricity.

    3. Use voltage on the high side or on the low side

    High voltage will burn down electrical equipment, and there are potential safety hazards, while shortening the service life of electrical appliances. Generally, high voltage in newly built residential areas (independent transformer power supply, less load)

    Low voltage equipment can not work, which is the easiest to judge. Most of the purchases basically meet this problem.

    After clarifying the above three points, we can determine how to choose a regulator and how many regulators are suitable.

    0. If the voltage of imported equipment 110V, choose a voltage stabilizer with 110V output. This is the best choice. The power of the equipment is 1.5-2 times better. For example, rice cooker 2KW, buy voltage regulator 3KVA-4KVA can be (Note: Normal voltage regulator using 220V terminal, 110V terminal when the load capacity is reduced by half), choose transformer 2KVA can be, family equipment as far as possible to avoid the choice of transformer.

    1. High voltage, 1.5 times of power

    2. Selection of low voltage according to 2-3 times

    3. Air conditioning is most suitable according to the power of 3-5 times (air conditioning compressor start-up current is large, must choose large size, can consult air conditioning manufacturers)

    If both of the above are confirmed, you still need to look at the following five suggestions. After reading these, you will buy a home regulator.

    1. Please determine the range and frequency of 220V voltage jump in your home, and then buy a regulator. For example, if your home voltage is pulled to about 80V, and your voltage stabilizer input range is 140 V-230V, it will not play the role you want. Therefore, the voltage regulator should be selected according to the power supply range of the use environment. It is recommended to choose a broadband regulator.

    2. Rated power. Make sure the total power of the device you need to regulate. When choosing a regulator, the rated power of your regulator should be higher than 30% of the total power of all devices. You know, the heat generated by full load will increase the loss of components, if overloaded operation, the required current is too large, the voltage will inevitably be pulled down.

    3. Automatic voltage regulation function and accuracy. When purchasing the regulator, try to choose the automatic voltage regulation function, although the price may be slightly higher. But it's more cost-effective than burning down your machine.

    Old-fashioned regulators use the principle of relay switching when the voltage changes. At the moment of switching, the current will have a slight floating impact. Therefore, the higher the accuracy, the smaller the current shock.

    4. When purchasing a voltage regulator, it is recommended that you choose a voltage regulator three times larger than the actual power, because the voltage regulator should overcome the surge impact of the city electricity and the start impact of the sensible load (such as refrigerator, air conditioning, motor and motor). When purchasing a voltage regulator, the rated output voltage regulator should be selected. There is a larger margin than the switching automatic voltage regulator.

    Check the appearance quality and processing technology, buttons, switches and other operations should be flexible and reliable, spare parts should not be loosened and shake the machine parts, there should be no rolling sound of objects in the machine, otherwise there are foreign bodies in the machine.

    5. Rational selection of rated output of automatic voltage regulator, total capacity = total power of household appliances *3. The shape structure of automatic voltage regulator includes desktop, hanging wall, desk wall dual-purpose and landing type. Different styles should be selected according to the location, main use and installation capacity.

    Based on the above points, you can choose your own suitable home voltage regulator. When choosing the voltage regulator, it is the choice between brand and price. Xiaobian suggests choosing the products of Beijing Hongtong Electric Co., Ltd., which are of high quality, low price and high credit-price ratio.