Electrical equipment, without which no house or enterprise can do, uses electrical energy of different voltages for its work. And in some cases it reaches a level that is deadly to human life. In view of this, there are increased requirements for the installation and operation of such products. For safety reasons, an isolation transformer is used. It is installed both in private homes and in enterprises.


The separating transformer is structurally a device in which metal tapes or wires are wrapped around a ferromagnet - a material that spontaneously generates a magnetic field when a certain temperature is reached. Such windings form coils. As a rule, the device has one or two such reels, the cores of which are wrapped with wire in several layers.

The main protection of the house from fire and electric shock - separation transformerThe design feature of the isolation transformer is the separation of the primary windings from the secondary circuits by means of a powerful insulation layer, sometimes in combination with a protective screen. The presented device practically does not differ from its standard colleague and serves to reduce or increase the voltage and other transformations.

Distinctive features

The main purpose of any transformer is to separate the consumer and the source of the electrical network. The devices themselves and the person himself act as a consumer. Such events are held to solve one problem - increasing the level of safety when working with electrical equipment.

A distinctive feature of the isolation transformer is the lack of electrical connection to the ground, and, therefore, to a voltage source. This achieves an exceptional advantage of this device - in the event of a breakdown in the network, the current does not increase, and a person’s contact with the damaged element doesn’t threaten - the potential difference between the point of contact with the open circuit and the ground will be minimal and safe for life.

Scope of application

Isolating transformer is widespread due to the fact that it is an affordable device with a simple device that does not require special skills during operation and installation. It is applied where increased safety requirements are imposed when working with electrical equipment.

Experts recommend to install the device in rooms with high levels of humidity, in particular, in bathrooms. So, in case of breakage of an electrical circuit or damage to the insulation, the current will remain at a safe level for a person due to the fact that there will not be a large potential difference.

The presented voltage transformer is also used at industrial enterprises, as well as as part of more complex technical devices, for example, galvanic isolations. Such systems transmit a signal without direct contact of the working parts with each other, which further increases the level of safety when working with high voltage devices.

Main types

There are a large number of devices on the electrical equipment market, which differ from each other in a number of ways. However, in practice it is usually necessary to deal with only two types of them, designed to convert an electrical circuit with a voltage of 220 and 380 volts.

Isolating transformer 220/220 is used mainly in private houses, apartments and in suburban areas, as the voltage presented is standard for Russian power lines. Such devices are also used in small business organizations whose equipment does not require a large potential difference.

For work with networks of higher voltage, an isolating transformer 380/380 is used. The main scope of its application is industrial enterprises, workshops, specializing in metal processing by electricity, as well as medical institutions. Equipment in the organizations represented consumes high voltage current, which means that additional security measures are required.

Security measures

Despite the fact that the devices are an additional means of protecting people from high voltage, they themselves require increased attention when handling them. So, it is not allowed to touch the metal windings - the voltage on the coils is life threatening.

You also can not touch the nodes that make up the voltage transformer, and at the same time stand on the floor or touch the object, one way or another connected to the ground. Due to such features, the installation of the presented electrical energy converters can be performed only by special trained specialists.

The equipment for the interpretation of electricity on the market is located in a large price range. The cost varies from one to 10 thousand rubles. The main factors affecting the price are the brand of the manufacturer, the permissible input voltage, the degree of security and the presence of insulation control.

An ordinary citizen can find an isolation transformer for his house, the price of which will be within two thousand rubles. Such a device will meet all the requirements for use in a private home. However, the cost of the device for industrial enterprises will grow, starting from a higher mark - about 10 thousand rubles.