Autotransformers are devices that allow you to change the voltage in an electrical circuit. Autotransformers differ from standard transformers in a small voltage setting range. The coefficient of change in such devices usually does not exceed 1.5-2 units. If the ratio reaches 3 or more, it is more expedient to use standard transformers.
However, autotransformers have the advantage of being more affordable and easier to use. For this reason, the devices are in demand not only in laboratories and workshops, but also in households, for example, in summer cottages.
The best autotransformers with 98% efficiency, reliable and durable are presented below. We have selected 7 devices, sharpened for different needs.
Content
LATR RNO 250 0.5 М
The device is equipped with two inputs for 127V and 220V. At the output, the voltage can be from 0 to 250 Volts, the owner sets the specific value using the toggle switch. The adjustment is convenient, the threaded scale allows you to clearly determine the set voltage. The power of the transformer is 0.5 kW (low power), but the unit is equipped with an efficient free cooling system.
Pros:
- connectors for two types of input voltage are provided;
- efficient cooling even under maximum operating conditions;
- low price;
- reliability and ease of use;
- easy adjustment.
Minuses:
- there is no voltmeter;
- low power;
- connection via terminals.
LATR TDGC2 0.5a
The device has a fairly low price and high quality of work. The design matches that of the more expensive models. The indicators are set using a toggle switch, the standard range is from 0 to 250 volts. On the top panel there is a voltmeter with a pointer, which will allow you to monitor the voltage level, as well as two handles for carrying the unit. Despite its compact size, the device is heavy.
Pros:
- small dimensions;
- modern design;
- quality of work;
- durability;
- built-in voltmeter.
Minuses:
- heavy weight;
- hard to bear;
- the parts are not of the highest quality.
LATR Uniel U TDGC2 0.5
A modern device with a number of additional options. Natural air cooling is provided, which is highly efficient even at peak loads on the unit. The output voltage adjustment range is from 0 to 330 volts. Input voltage 220 Volts, frequency 50 Hz. This LATR is suitable for a wide variety of purposes: laboratory use, home network, workshop and production.
The model is equipped with an LCD display that displays the current voltage reading. Thus, the owner can always control the compliance of the indicator with the previously set one.
Pros:
- availability of an LCD display;
- built-in voltmeter;
- reliable case;
- extended possibilities for voltage regulation.
Minuses:
- connection via terminals;
- you need to use grounding;
- not the lowest price.
Resanta LATR TDGC2-2
Reliable device of domestic production. It is used as a LATR for testing new devices, as well as as a protection for wiring in home networks with a constantly jumping voltage.The internal structure is reliable, the manufacturer guarantees a long service life of the device. Adjustable up to 250 volts. There is a dial voltmeter on the front panel.
Pros:
- the presence of a voltmeter;
- low price;
- long service life.
Minuses:
- heavy during transportation;
- lack of additional options.
LATR SUNTEK 500 VA 0-300
One of the most worthy devices in this TOP. In addition to good indicators of reliability and durability, the device also has an LCD display, convenient voltage regulation using a toggle switch located on the upper plane. The advantages include the presence of folding handles. They are convenient when carrying the device, and during the use of the device it is enough to sink them into the case.
Small dimensions of LATR make it possible to install it in small rooms. The manufacturer recommends using an autotransformer in production, when testing electrical appliances, as well as with constant power outages in the home network.
Pros:
- light weight;
- the presence of handles makes the device easy to carry;
- compact;
- relatively small price;
- LCD display;
- setting range up to 300 volts.
Minuses:
- not found.
LATR AOSN 2 220 82 UHL4
The product is designed to adjust the voltage for further connection of radio devices. The main advantage of the autotransformer is its low price combined with a simple design. There is no forced cooling, but natural cooling is provided. The nominal input voltage must be 220 V. The owner can change the voltage indicators directly during the operation of the device. The setting range is 5 ~ 240V.
Pros:
- convenient type of voltage regulation;
- simple design;
- natural cooling;
- low cost;
- durability.
Minuses:
- connection to the mains is carried out through the terminals, which reduces the level of safety;
- long-term installation of the device;
- no voltmeter.
Energy LATR NEW TDGC2- 1K 1kVA 4A
This model is recommended to be purchased if the voltage constantly jumps in the house or at work. LATR will cope with short circuits, it provides overload protection. The device can withstand peak loads up to 20 minutes. When setting up, the owner can set values from 0 to 450 volts of output voltage.
A dial indicator is installed on the front panel to monitor the output voltage.
Pros:
- the presence of a voltmeter;
- wide range of adjustment;
- protection against short circuit and overload.
Minuses:
- inaccurate adjustment scale;
- large dimensions, difficulty in carrying (there are no handles).
When choosing a device, it is recommended to pay attention to the features of a home or industrial electrical network. It would not be superfluous to consult an electrical engineer.
