RU175085U1 - CAMERA COMBINED ONE-SIDED SERVICE - Google Patents

Abstract

The utility model relates to the field of electrical engineering, namely to high-voltage cameras for prefabricated one-way service (CSR), designed to receive and distribute electrical energy of three-phase AC current. The solution of these problems has been achieved in the chamber of the prefabricated one-way service, containing a prefabricated cabinet for mon even electrical equipment, consisting of separate modules located one above the other in several tiers, including vacuum or gas-insulated switches, measuring current and voltage transformers, equipment for auxiliary circuits of relay protection, automation, control, signaling and interlocks, drawer compartment, made with locks associated with the door, while the modules are located in three tiers: busbar compartment, drawer compartment and cable connection compartment, all compartments have doors : respectively, the upper, middle and lower, the connection of electrical equipment between the compartments is made by branch busbars in that the one-way service chamber is made with two insulating plates installed in the busbar compartment behind the drawer compartment against the middle door. The insulating plates can be mounted on channels and pressed against the rear walls. The branch busbars can be made with solid insulation. 2 s.p. f-ly, 5il.

Description

The utility model relates to the field of electrical engineering, namely to high-voltage cameras prefabricated one-way service (CSR), designed to receive and distribute electrical energy of three-phase alternating current.

Known camera one-way service team according to the patent of the Russian Federation for utility model No. 55513, IPC Н02В 11/00, publ. 08/10/2006

This chamber contains a prefabricated cabinet consisting of separate modules located one above the other in two tiers, including vacuum or gas-insulated switches, measuring current and voltage transformers, equipment for auxiliary relay protection circuits, automation, control, alarm and interlocks, while the sliding compartment with a switch or other device in the module case is in the working or control position with the front doors of the cabinet case closed.

Disadvantages: low density of installation and metal construction.

Known camera one-way service team according to the patent of the Russian Federation for utility model No. 52277, IPC НВВ 11/26, publ. 03/10/2006, the prototype.

This one-way service chamber contains a prefabricated cabinet for the installation of electrical equipment, consisting of separate modules located one above the other in several tiers, including vacuum or gas-insulated switches, measuring current and voltage transformers, equipment for auxiliary relay protection circuits, automation, control , alarms and locks, drawer compartment made with locks associated with the door, while the modules are located in three tiers: compartment with boron tires, drawer compartment and cable connection compartment, all compartments have doors: upper, middle and lower, respectively, the connection of electrical equipment between the compartments is made by branch buses.

Disadvantages: the relatively large size of the switchgear, the low density of the installation of electronic components in the cabinet and the high metal production.

Technical tasks of creating a utility model: reduce the size of the switchgear, increase the density of installation of electronic components in the cabinet and reduce the metal consumption of the manufacture.

The solution to these problems has been achieved in a one-way service prefabricated chamber containing a prefabricated cabinet for mounting electrical equipment, consisting of separate modules located one above the other in several tiers, including vacuum or gas-insulated switches, measuring current and voltage transformers, and equipment for auxiliary relay circuits protection, automation, control, alarm and locks, drawer compartment made with locks associated with the door, while the barrels are located in three tiers: the busbar compartment, the drawer compartment and the cable connection compartment, all compartments have doors: respectively, upper, middle and lower, the connection of electrical equipment between the compartments is made by branch buses so that the one-way service chamber is made with two insulating plates installed in the busbar compartment behind the drawer compartment against the middle door.

Insulation plates can be mounted on channels and pressed against the rear walls.

The essence of the utility model is illustrated in the drawings (Fig. 1 ... 5), where:

- in FIG. 1 shows the camera team unilateral service with open doors,

- in FIG. 2 shows a one-way service camera with closed doors,

- in FIG. 3 shows a cross section of a branch bus 4,

- in FIG. 4 shows the type of insulating plates,

- in FIG. 5 shows a section AA of FIG. four.

In the compartment of busbars 1 (Fig. 1 and 2) are the following main elements:

• valves for servicing busbars 2;

• busbars 3;

• branch busbars 4 with solid insulation 20 (Fig. 3);

• bracket with insulators 5.

The drawer compartment 6 structurally consists of:

• curtain mechanism 7;

• vacuum circuit breaker 8;

• middle door 9;

• panels with bushing 10;

• trolleys 11.

At a rated current of 1600 A, the width of the KSO chamber is 750 mm. At currents up to 1250 A, the width of the chambers is 650 mm. Insulation plates 21 are mounted to the channels and pressed against the rear wall 22 of the chamber (Fig. 4 and 5).

The metal structure of the KSO chamber is made of galvanized sheet bent profiles and panels interconnected by means of blind rivets. Inside the KSO chamber, the main circuit equipment, protection and control circuits are located.

A feature of the chamber doors with a vacuum circuit breaker 8 is the presence of holes 12 for emergency shutdown of the vacuum circuit breaker 8. Only the vacuum circuit breakers 8 of Evolis and BB TEL models can be switched off using the emergency shutdown rod.

The opening and closing of the operating curtain in the middle compartment is due to mechanical action on the shutter control lever. In order to control the shutter, it is possible to attach a magnetic key to an electromagnetic lock (not shown) and use this key to pull the rod 23, which blocks the movement of the shutter 24.

Busbars 3 are connected in the busbar compartment 1 at the top of the KSO chamber. In the lower part there are current transformers 13 and zero sequence 14, cables are connected in the same place. On the front side of the KSO chamber are located: on the door of the low-voltage compartment 15 - protection, metering and measurement devices, on the middle door 9 on the inside there is a door lock 25 and a lock 26 (Fig. 1).

Between the doors 9 and 16 of the compartment of the sliding element 6 and the compartment of the cable connections 18 are the controls and signaling of the ground electrode 27.

Three doors provide access to the KSO chamber: the top 15 - to the busbar compartment 1, the middle 9 - to the drawer compartment 6, the lower 16 - to the cable connection compartment 18.

All compartments are separated by metal partitions. Auxiliary circuit equipment is located in the low-voltage compartment (not shown).

On the doors 9 of the compartment of the retractable element 6 and the door 16 of the compartment of the cable connections 18 there is a viewing window 17 for viewing the inside of the CSR camera (Figs. 1 and 2).

On the facade of the KSO chamber in the lower part there is at least one ground clamp 19 (Fig. 1), designed to connect elements temporarily to ground to the grounded housing.

The following locks were made in the KSO chamber:

• moving the sliding element of the compartment of the sliding element 6 - VE from the control position to the working and vice versa when the vacuum switch 8 is on;

• turning on the vacuum circuit breaker 8 when the HE is in the intermediate between the operating and control positions;

• inclusion of protection when the retractable element of the SE of the compartment of the retractable element 6 is out of the control position;

• moving the sliding element of the compartment of the sliding element 6 from the control position to the working when the protection is on;

• moving the vacuum circuit breaker 8 from the control position to the working position with the doors of the drawer compartment open;

• opening the door of the drawer compartment 6 when the drawer is outside the control position;

• opening the door of the drawer compartment 6 when the protection is off;

• moving the sliding element of the compartment of the sliding element 6 to the repair position at any position of the wind turbine other than the control;

• shutter mechanism 7 in the closed state with a padlock;

• turning on the high-voltage vacuum circuit breaker 8 when the handle of the drive of the sliding element of the compartment of the sliding element 6 is inserted into the socket;

• moving the sliding element of the compartment of the sliding element 6 to the working position from the repair, bypassing the control (together with the carriage carriage).

The KSO chamber also provides the ability to install locks.

The upper door, on which the auxiliary circuit devices are installed, is grounded by a flexible wire.

The operation of the camera team unilateral service is as follows.

With closed doors 15, 9 and 16, voltage is applied to all the electrical equipment of KSO. Turn on the vacuum switches 8.

Work control is performed by instruments and through windows 17 (Fig. 1).

The claimed technical solution allowed:

- minimize the size of the camera team unilateral service;

- increase the density of installation of electrical equipment in the cabinet;

- reduce the metal production of the cabinet.

Claims (3)

1. One-way service prefabricated chamber, comprising a prefabricated cabinet for installation of electrical equipment, consisting of individual modules located one above the other in several tiers, including vacuum or gas-insulated switches, current and voltage transformers, equipment for auxiliary relay protection circuits, automation , control, alarm and locks, drawer compartment made with locks associated with the door, while the modules are located in three tiers: compartment boron tires, drawer compartment and cable connection compartment, all compartments have doors, respectively: upper, middle and lower, electrical equipment connection between the compartments is made by branching buses, characterized in that two insulating plates are made in the chamber of the unilateral service team installed in the compartment of prefabricated tires behind the drawer compartment against the middle door. 2. The chamber is a one-way service team according to claim 1, characterized in that the insulating plates are mounted on channels and pressed against the rear walls. 3. The camera is a one-way service team according to claim 1, characterized in that the branch busbars are made with solid insulation.

Images