Voltage stabilizer for the house - types , description and selection rules

Many homeowners had to notice that more than their homes are located on the transformer station, the lower the stress in their home.Conversely, the closer to the substation building is, the higher the voltage at its input.This phenomenon is explained by the fact that there is a voltage drop associated with the length of the network in the power supply.

In the case of relatively long power line near the substation will be significantly higher than normal, and at the other end of the same line voltage will be too low.However, as the low and high voltage is hazardous to many electrical devices that may fail or will not be included.

Help in this situation may have devices that provide voltage regulation.These devices are called voltage stabilizers, and we will talk today about how to choose a good stabilizer.

Principle of operation and types of

voltage regulators in all kinds of stabilizers, the behavior is similar.Filling device analyzes the input voltage and switches the transformer windings therein so as to provide the desired amount and consistency of the output voltage.Currently, the most popular are three types of stabilizers, differing among themselves on the principle of voltage control: servo, relay and electronic.

servo stabilizers

Job servo stabilizers provided by the actuator, which moves the slider along the windings of the transformer so that provides a constant voltage output.The cost of such stabilizers are lower than others, but it also applies to their reliability due to a large number of mechanical components.

Relay stabilizers

Relay stabilizers are the middle link between electronic and servo.Switching winding voltage stabilizers in the data is due to the block of power relays.The advantage of these devices is their relative cheapness and the disadvantage is limited lifetime, due to the presence of the relay, which is essentially a mechanical element.

Electronic stabilizers

greatest reliability have electronic stabilizers, in which the role of the actuator is given an electronic key.These devices are extremely reliable, have great performance and virtually silent.But they are almost twice more expensive than their mechanical counterparts.

Selection Criteria

voltage regulator for proper selection of the stabilizer is necessary to know the total power consumption of all electrical appliances of your home.Note that the full power of each device is indicated on the label attached to it in the Watts-amperes (VA).If the instrument is indicated only power in watts (W), then it is only about active power, which is part of the total power consumption.

Defining power stabilizer, it is necessary to take into account the presence of electric motors in the house, in which the start-up time required current exceeding the nominal 3-6 times.This applies to refrigerators, compressors and pumps.When choosing a transformer, it is necessary to take into account the transformation ratio, which is reduced in direct proportion to the level of voltage drop.Therefore, the stabilizer is selected with a margin of 20-30%, not tailgating.