RU81205U1 - CATHOD PROTECTION HIGH VOLTAGE DEVICE - Google Patents

Abstract

The high-voltage cathodic protection device relates to electrical engineering and is intended for industrial use in cathodic protection systems of underground metal (steel) structures, including underground steel pipelines, from electrochemical (ground) corrosion. The high-voltage cathodic protection device comprises a cabinet with doors with locking devices, consisting of two compartments: a high-voltage switchgear with a guard and a low-voltage switchgear. A high-voltage power transformer is located in the compartment of the high voltage switchgear, and a switchboard, equipment for heating the air inside the cabinet, limit switches and cathodic protection equipment are located in the compartment of the low voltage switchgear. On the roof of the cabinet of the device there is an air input box assembly with a traverse on which pin insulators and surge arresters are placed. Bushing insulators are located on the air inlet box. Busbars and fuses are located inside the air inlet duct. On the top of the cabinet are brackets with brackets. New in the claimed device is that the cabinet design is made of prefabricated frames, the device is equipped with beams, racks and rails for installing cathodic protection equipment, as well as a pallet with a fitting for draining oil, the capacity of which allows the entire volume of oil to be accommodated from a high-voltage power transformer , equipment for heating the air inside the cabinet is made in the form of tubular electric heaters located inside the cabinet in the compartment of the low voltage switchgear, brackets with the brackets are made of sheet material, and the locking devices for the cabinet doors are in the form of screws, visors are made above the cabinet doors,

the cabinet high voltage switchgear is equipped with a solid guard. The technical result manifested in the manufacture, or when using the proposed utility model, is to increase the reliability of the claimed device and its performance.

Description

The utility model relates to electrical engineering and is intended for industrial use in cathodic protection systems of underground metal (steel) structures, including underground steel pipelines, from electrochemical (ground) corrosion.

A high-voltage distribution cathodic protection device is known, which represents a failure of a welded metal structure, consisting of two compartments: a cathodic protection unit and a high-voltage unit, interconnected by a bolt joint and a slide. To the high-voltage block there is a fence in the form of a grid. The delivery kit includes the bracket assembly. The device is closed by doors that have seals that provide protection against rain. Structurally, a high-voltage cathodic protection device is a device consisting of a high-voltage input cabinet, in which high-voltage fuses and a cabinet of a cathodic protection unit are located with metering, measurement, protection and control equipment and cathodic protection converters that carry out manual regulation of the protective potential. (Technical description and operation manual IVEM.674512.004TO “High-voltage distribution cathodic protection device” of the Minsk Order “Badge of Honor” of the V.I.Kozlov Electrotechnical Plant, 1997) and (https://.metz.by/russian /ukzvl.htm).

The reasons that impede the receipt of a technical result by analogy, which is provided by the claimed utility model, are as follows. A transformer by analogy is located at the top of the device and is difficult to access for maintenance. The fence is made of mesh, which reduces the reliability of the device and does not allow rational placement of structural elements and equipment for cathodic protection. Device

represents a welded metal construction that does not allow to apply a high-quality sheeting at its production.

As the closest analogue, a high-voltage cathodic protection device is adopted, which contains a cabinet with doors with locking devices. The cabinet consists of two compartments: a high-voltage switchgear with a mesh fence and a low-voltage switchgear. A high-voltage power transformer is located in the compartment of the high voltage switchgear, and a switchboard, equipment for heating the air inside the cabinet, limit switches and cathodic protection equipment are located in the compartment of the low voltage switchgear. On the roof of the cabinet of the device there is an air input box assembly with a traverse on which pin insulators and surge arresters are placed. Bushing insulators are located on the air inlet box, busbar and fuses are located inside the air inlet box. On the top of the cabinet are brackets with brackets. (Ozerskaya Electro-Engineering Company Elikom LLC, tel / fax (35130) 7-58-10,7-79-12, WWW.elicom05. @ Mail.ru. High-voltage distribution cathodic protection devices of the Energomera type. Manual on operation ELIK.674712.001RE).

The reasons that impede the obtaining of a technical result for the closest analogue, which is provided by the claimed utility model, are the insufficient reliability of the device and poor performance. The essential features of the claimed utility model are as follows.

The high-voltage cathodic protection device comprises a cabinet with doors with locking devices. The cabinet consists of two compartments: a high voltage switchgear with a guard and a low voltage switchgear. In the compartment

a high-voltage switchgear contains a high-voltage power transformer, and in the compartment of a low-voltage switchgear there is a switchboard, equipment for heating the air inside the cabinet, limit switches and cathodic protection equipment. On the roof of the cabinet of the device there is an air input box assembly with a traverse on which pin insulators and surge arresters are placed. Pass-through insulators are located on the air inlet box. Busbars and fuses are located inside the air inlet duct. On the top of the cabinet are brackets with brackets. The design of the cabinet is made by the national team, from separate frames. The device is equipped with beams, racks and guides for installing cathodic protection equipment, as well as a pallet with a fitting for draining oil, the capacity of which allows you to accommodate the entire volume of oil from a high voltage power transformer. The equipment for heating the air inside the cabinet is made in the form of tubular electric heaters located inside the cabinet in the compartment of the low voltage switchgear. Brackets with brackets are made of sheet material, and locking devices for cabinet doors are in the form of screws. Visors are made over the cabinet doors. The high voltage switchgear is equipped with a solid guard.

Unlike the closest analogue in the proposed device, the cabinet design is made of prefabricated frames, the device is equipped with beams, racks and rails for installing cathodic protection equipment, as well as a pallet with a fitting for draining oil, the capacity of which allows the entire volume of oil to be accommodated from a high-voltage power transformer . The equipment for heating the air inside the cabinet is made in the form of tubular electric heaters located inside the cabinet in the compartment of the low voltage switchgear. Brackets with brackets are made of sheet

material, and locking devices for cabinet doors - in the form of screws. Visors are made over the cabinet doors. The switchgear high voltage switchgear is equipped with a solid guard.

The technical result manifested in the manufacture, or when using the proposed utility model, is to increase the reliability of the claimed device and its performance. The specified technical result is provided by the following set of features.

The high-voltage cathodic protection device comprises a cabinet with doors with locking devices. The cabinet consists of two compartments: a high voltage switchgear with a guard and a low voltage switchgear. A high-voltage power transformer is located in the compartment of the high voltage switchgear, and a switchboard, equipment for heating the air inside the cabinet, limit switches and cathodic protection equipment are located in the compartment of the low voltage switchgear. On the roof of the cabinet of the device there is an air input box assembly with a traverse on which pin insulators and surge arresters are placed. Pass-through insulators are located on the air inlet box. Busbars and fuses are located inside the air inlet duct. On the top of the cabinet are brackets with brackets. The design of the cabinet is made by the national team, from separate frames. The device is equipped with beams, racks and guides for installing cathodic protection equipment, as well as a pallet with a fitting for draining oil, the capacity of which allows you to accommodate the entire volume of oil from a high voltage power transformer. The equipment for heating the air inside the cabinet is made in the form of tubular electric heaters located inside the cabinet in the compartment of the low voltage switchgear. Brackets with brackets are made of sheet material, and locking devices for

cabinet doors - in the form of screws. Visors are made over the cabinet doors. The high voltage switchgear is equipped with a solid guard.

The design of the cabinet is made by the national team, from separate frames, which improves the manufacturability of production, allows the application of high-quality protective coatings on all elements of the claimed device, facilitates the transportation of the product to the consumer, improves its performance and reliability.

The device is equipped with beams, racks and rails (and it is possible to reinstall the rails relative to the racks) for installing cathodic protection equipment in different versions and allowing the movement of heating units inside the cabinet, which improves its performance and reliability. The inventive device is equipped with a pallet with a fitting for draining the oil, the capacity of which allows you to accommodate the entire volume of oil from the lowering high-voltage transformer. Such a sump allows you to take the entire volume of oil from the transformer in case of emergency and to prevent oil from entering the cathodic protection equipment, which is located under the step-down high-voltage transformer. This increases the reliability of the claimed product and its performance.

The equipment for heating the air inside the cabinet is made in the form of tubular electric heaters located inside the cabinet in the compartment of the low-voltage switchgear, which ensures the working temperature of the medium for uninterrupted operation of the cathodic protection equipment throughout the entire cabinet at a low outdoor temperature. This increases the reliability of the claimed product and its performance.

The implementation of brackets with brackets made of sheet material eliminates low-tech machining operations and takes advantage of the latest technological equipment, i.e.

to improve the manufacturability of the claimed product, makes it easy to transport the inventive device, improve performance and its reliability.

Locking devices for cabinet doors in the device are made in the form of screws, which ensures uniform and reliable fit of doors around the entire perimeter. This increases the reliability of the claimed device and its performance.

Visors are made above the cabinet doors, which protects the service personnel and equipment inside the cabinet from atmospheric precipitation and increases the reliability of the claimed device and its performance.

The high-voltage switchgear of the cabinet is equipped with a continuous fence that is not deformed, which made it possible to rationally place structural elements and cathodic protection equipment. This fence ensures the safety of electrical equipment. The solid fence is rigid, does not deform, the danger zone decreases and the usable volume for the cathodic protection equipment increases, i.e. increases the reliability of the claimed device and improves its performance.

The essence of the utility model is illustrated in the drawing. In Fig. 1 shows the inventive device is a front view, in Fig. 2 is a side view.

The inventive device consists of an air inlet duct 1 (Fig. 2), a high voltage switchgear 2 (Fig. 2), a low voltage switchgear 3 (Fig. 1), surge arresters 4 (Fig. 1), pin insulators 5 (Fig. .1), bushing 6 (Fig. 1), busbar 7 (Fig. 2), fuses 8 (Fig. 2), power transformer 9 (Fig. 2), switchboard 10 (Fig. 1), heating equipment air 11 (Fig. 2), a continuous fence 12 (Fig. 1), a cabinet 13 (Fig. 1), a door 14 (Fig. 2), a locking device 15 (Fig. 2), equipment cathodically th protection 16 (Fig. 1), traverse 17 (Fig. 2), bracket

18 (Fig. 2), staples 19 (Fig. 1), individual frames 20 (Fig. 1), beams 21 (Fig. 1), guides for cathodic protection 22 (Fig. 2), racks for installing cathodic protection 23 ( fig. 1), pan 24 (fig. 1), fitting 25 (fig. 1), peaks 26 (fig. 2), limit switches 27 (fig. 1).

Cabinet 13, with doors 14 of the cathodic high-voltage protection device, is transported to the installation site on a foundation prepared in advance. High voltage is supplied from the power lines to the cathodic protection device. Through surge suppressors 4, mounted on the traverse 17 to the pin insulators 5, and through bushing 6, located in the duct of the air inlet 1, busbar 7 is fed to the power transformer 9 of the high voltage switchgear 2, from which the switchboard 10 of the low voltage switchgear is fed 3, ensuring the operation of equipment for cathodic protection 16, limit switches 27, equipment for heating air 11. In the event of an emergency caused by exit m failure of the power transformer 9, the oil is drained into the sump 24 containing the fitting 25. Visors 26 are made above the doors 14 of the cabinet 13. A solid guard 12 separates the compartment of the high voltage switchgear 2 from the low voltage switchgear 3. Fuses 8 provide protection for the internal cabinet equipment 13 overcurrent. When transporting the inventive device, the brackets 18 with brackets 19 provide ease of transportation. Separate frames 20 provide the necessary strength of the metal structure of the claimed product. Beams 21, racks 23 and guides 22 are used to install cathodic protection equipment, allow you to place it in different versions. The locking device 15 for the doors 14 of the cabinet 13, made in the form of screws, provide a uniform and reliable fit of the doors around the perimeter.

Claims (1)

A high-voltage cathodic protection device containing a cabinet with doors with locking devices, consisting of two compartments: a high-voltage switchgear with a guard and a low-voltage switchgear, a high-voltage power transformer is located in the high-voltage switchgear compartment, and a shield in the low-voltage switchgear compartment distribution, equipment for heating the air inside the cabinet, limit switches and equipment for cathodic protection , on the roof of the cabinet of the device there is an air input box assembled with a traverse on which pin insulators and surge arresters are placed, bushing insulators are placed on the air input box, busbars and fuses are located inside the air input box, brackets with brackets are located on the top of the cabinet, different the fact that the cabinet design is made of prefabricated frames, the device is equipped with beams, racks and rails for installing cathodic protection equipment, as well as a pallet with pcs Utsera for draining oil, the capacity of which allows the entire volume of oil to be contained from a high-voltage power transformer, the equipment for heating the air inside the cabinet is made in the form of tubular electric heaters located inside the cabinet in the compartment of the low-voltage switchgear, the brackets with brackets are made of sheet material, and the locking devices for cabinet doors - in the form of screws, visors are made above the cabinet doors, the cabinet high-voltage switchgear is equipped with a solid fence m