Mast transformer substation: the principle of work and appointment

Transformer substations are an integral part of modern infrastructure of energy supply. They are utilized at the stage of distribution of electricity, allowing processes to minimize the distortion characteristics of the current while it is in transit over long distances. There are different types of such objects, which are distinguished by peculiarities of structural performance approach to the installation and operation. In turn, mast transformer substation is the most common structure of this type, providing a number of advantages.

Overview masted substation

Mast, or pole, substation runs as a single transformer unit, which, depending on the characteristics may work with power 25-250 kVA range. In the operation of such installation on average can take electricity alternating current with the voltage of about 6 kV. With proper installation of pole-mounted transformer substation is able to maintain optimum performance and output, and high temperatures in summer.

The Greater danger is posed by the threats associated with a direct function of such objects. Depending on the operating conditions can be risks of short circuits, overloading of lines, line to line faults and surges. For this reason, already in the base mast transformer substation is supplied with a wide range of protective systems. In addition, provision of electrical and mechanical interlocks ensure safety for staff.

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Assignment masted substation

The Function of the transformer substation is connected with necessity of reduction of losses in transmission lines. This task can be achieved in different ways, but in this case, the installation should provide an increase in voltage. This substation is provided with the electrical installation, performing the function of conversion and distribution of energy. In the working process involved several components, including distribution boards, control systems and auxiliary mechanisms that provide functions outside of the facility. Again, depending on the application and operating conditions power distribution mast substation may occur for different characteristics of the power system. In some models, provides the implementation of the tasks of energy accounting. It is achieved through the preset counters that can operate on the principle of electrochemical reactions, and mechanical action.

Principle of operation

Source of energy supplied substation, are full-fledged objects the generation of electricity. From them the voltage is applied to transforming and distribution substation which is usually located nearby. The aforementioned function of increasing voltage to minimize losses in the lines is produced by the action of the boosting transformer of the apparatus. Further a receiver of electricity may be a step-down transformer, which optimizes the characteristics of the voltage to the optimum from the point of view of use in the local network. For the stable execution of these tasks mast transformer substation must be regularly cooled. Usually cooling systems are devices with the mechanisms of oil supply. This is one of the systems that increase the reliability of substations of this type.

Types of pole-mounted substations

There are two approaches to the implementation of the structural performance of such substations. A more simple option is complete transformer substation which has the A-shaped exterior design. The composition of these structures includes a set of isolators with a driving mechanism, the discharge elements, a fuse and directly power transformer unit with distribution module.

The Second option is a more complex, more functional and efficient U-shaped workstation. And if the first kind is often complete, in this case, the installation can be performed using ready-to-install units. However, complete transformer substation is often used in this configuration. The composition of this system includes the same set of components but with some differences. In particular, U-shaped station also has voltage limiters, and distribution module is usually represented by devices low voltage

How is a pole-mounted transformer substation?

And Installation activities include the execution of several operations, including delivery of equipment, Assembly of the action and attachment of support elements. Next is the alignment of the mounting position, after which the prepared units are filled electrical equipment. Direct connection of devices to each other is made only after the final revision and configuration devices.Usually mast transformer substation can be equipped with hardware with the help of special equipment. For example, a power transformer can climb the pillar crane. This is followed by a fixing block – on concrete piers fixation is made using a metal frame which in turn is held on a support metal clamps.

Conclusion

Pole substation due to its construction is widespread in different industries. Companies produce special models for use in agriculture, improve basic series multi-purpose, develop a powerful complete facilities to serve the needs of industrial facilities, etc. But regardless of design, a transformer substation mast type develops steadily and technologically. Manufacturers produce components of new generation, whose work has been based on the principles of automation. On the one hand, this transition complicates design and management, but on the other – allows you to calculate the energy and financial service costs, not to mention the increased reliability and security.