RU53077U1 - CAMERA COMBINED ONE-SIDED SERVICE OF TYPE KSO-393AV AND INDICATOR OF CONDITION OF ITS VACUUM CIRCUIT BREAKER - Google Patents

Abstract

The utility model relates to the field of electrical engineering and can be used in the manufacture of high-voltage equipment. One-way service chamber type KSO-393AV, contains busbars located in the upper part of its housing, linear and busbar mounted on the rear side of the housing, configured to install a technological protective partition in the gap of its open contacts, disconnectors, a high-voltage vacuum switch fixed inside the housing horizontally and closed on the front side with a removable panel with a window, current transformers displayed on the front side of the case and located below the mounting points are high of a vacuum circuit-breaker, the actuator levers of the linear and bus disconnectors, located on the front side of the housing, a low-voltage compartment, screws fixed to the edge of the drive shaft of the high-voltage vacuum circuit breaker plate, partially enveloping the axis of the drive shaft, and having flat sections marked with the states of the high-voltage vacuum circuit breaker, and the window is removable the panel is made at the corresponding lateral edge of the chamber, opposite the plate section corresponding to the state of the high-voltage vacuum circuit breaker. The status indicator of the high-voltage vacuum circuit breaker contains a sleeve mounted on the end of the drive shaft of the high-voltage vacuum circuit breaker, a curved plate mounted on the sleeve and made with two marked flat sections corresponding to the on and off states of the high-voltage vacuum circuit breaker, and partially envelope the sleeve in the plane perpendicular to the shaft axis drive.

Description

Utility models relate to the field of electrical engineering and can be used in the manufacture of high-voltage equipment.

The closest technical solution - the prototype is a complete switchgear containing busbars located in the upper part of its casing, connected via series-connected bus disconnector, circuit breaker, current transformer and linear disconnector to load buses, the levers of linear and bus disconnector drives placed on the front of the device placed on the front side of the device low voltage compartment, configured to accommodate a measurement and signal equipment and separated from the rest of the internal space of the casing by a partition, the device is made with the possibility of installing a technological protective partition into the gap of the open contacts of the bus disconnector and restricting access to the busbars, the linear and bus disconnectors are fixed on the rear side of the casing, the circuit breaker is a high-voltage circuit breaker with vacuum chambers and is mounted horizontally inside the housing, and the levers of the disconnector drives are located below the mounting point in breakers, the front side of the device is provided with a removable panel for access to the switch from window switch state indicator (see. U1 No. 46615, RU, cl. H 02 B 11/00, 11/26. publ. July 10, 2005, Bull. No. 19).

The known device is a one-way service camera, since it is serviced on one side — the front one, on which there are necessary controls and doors for accessing the compartments, while the sides are closed by adjacent cabinets, and the operator serving the camera has the ability to receive information about device operation only with devices located on the front side of the device.

A disadvantage of the known device is that under certain conditions or harsh operating requirements, the known device can be used only with switches having a built-in indicator of the state of the switch. In the absence of a built-in indicator of the state of the switch, it is difficult to service the device as a whole, since the operator servicing the device has the ability

to draw conclusions about the state of the high-voltage circuit breaker only by indirect signs, and not directly by the position of the moving parts of the high-voltage circuit breaker, which is an inconvenience to service and reduces the safety of the known device. This circumstance narrows the scope of the known device.

The objective of the utility model is to increase the convenience and safety of working with the device, as well as expanding the scope of its application.

The technical result is the ability to indicate the status of a high voltage switch that does not have a built-in status indicator, by visualizing the position of the moving parts of the switch.

Vacuum circuit breakers of the BB / TEL series are known, some models of which have a built-in indicator of the status of the vacuum circuit breaker, for example, in the models of the 45th, 46th version (see the "Operation manual ТЩАГ674152.000 РЭ"). In some other models, there is no built-in status indicator, which reduces the convenience of working with the circuit breaker and is a limiting factor in their application, since the operator is not able to see the circuit breaker directly, which can only be judged by indirect signs.

The objective of the utility model is to increase the convenience and safety of working with a high-voltage vacuum circuit breaker, as well as expanding its scope.

The technical result is the ability to indicate the status of a high voltage switch that does not have a built-in status indicator, by visualizing the position of the moving parts of the switch.

This result is achieved by the fact that in the chamber of the unilateral service team of the type KSO-393AV, containing busbars located in the upper part of its housing, linear and busbar mounted on the rear side of the housing, configured to install a technological protective partition into the gap of its open contacts, disconnectors, high-voltage vacuum circuit breaker mounted horizontally inside the enclosure and closed with a removable panel with a window on the front side, current transformers brought to the front side of the box whisker and placed below the site of attachment of high voltage vacuum switch levers and actuators of the linear bus disconnectors disposed on the front side of the housing, a low-voltage compartment introduced fixed to the edge of the drive shaft of high voltage vacuum switch plate partially envelope axis

the drive shaft, and having flat sections marked with the states of the high voltage vacuum circuit breaker, and a removable panel window is made at the corresponding side edge of the chamber, opposite the plate section corresponding to the state of the high voltage vacuum circuit breaker.

- the plate is fixed on the edge of the drive shaft of the high-voltage vacuum circuit breaker by means of a screw connection,

- the plate is mounted on the shaft in such a way that the flat section corresponding to the state of the high-voltage vacuum circuit breaker is oriented vertically at any time, parallel to the plane of the removable panel,

- the window of the removable panel is made opposite the flat section corresponding to the state of the high-voltage vacuum circuit breaker,

- the plate has two flat sections corresponding to the on and off state of the high voltage vacuum circuit breaker,

- the switch is installed below the mounting location of the busbar disconnector and placed base on the front side of the device.

- the low-voltage compartment is located in the front upper part of the device.

- the low-voltage compartment is separated from the rest of the housing by means of a removable partition,

- the case is equipped with upper and lower doors, on its front side.

- the front side of the housing is configured to place controls on it.

This result is achieved by the fact that the status indicator of the high-voltage vacuum circuit breaker contains a sleeve mounted on the end of the drive shaft of the high-voltage vacuum circuit breaker, a curved plate mounted on the sleeve and made with two marked flat sections corresponding to the on and off states of the high-voltage vacuum circuit breaker, and partially envelope a sleeve in the plane perpendicular to the axis of the drive shaft.

Besides:

- the sleeve is made with holes for plate mounting screws,

- the sleeve is fixed to the end of the drive shaft with a connecting screw,

- marking of flat sections corresponds to the conditions of the high-voltage vacuum circuit breaker,

- the bending angle of the plate is determined by the angle of rotation of the shaft when switching the state of the high-voltage vacuum circuit breaker.

Utility models are illustrated with the help of drawings, in which Fig. 1 shows a drawing of a camera of a one-sided service team type KSO-393AV, front view, Fig. 2 is a drawing of a camera of a team of one-sided service type KSO-393AB with a removable panel removed, front view, in Fig. .3 is a side view of a camera of a one-sided service team type KSO-393AV, FIG. 4 is a drawing of a camera of a one-way service team of type KSO-393AV without a side wall, side view, Fig. 5 is a drawing of a shaft part with a plate fixed to it , side view, Fig.6 drawing of a part of the shaft with a plate mounted on it, front view, Fig.6 is a sketch of a status indicator of a plate high voltage vacuum circuit breaker.

The chamber is a one-way service assembly type KSO-393AV, contains prefabricated 1 tires located in the upper part of its housing, linear 3 and bus 4 mounted on the rear 2 side of the housing, configured to install a technological protective partition 6 in the gap 5 of its open contacts, disconnectors, high voltage a vacuum switch 7 mounted horizontally inside the case and closed on the front with a removable panel 8, which provides access to a high-level vacuum switch, with window 9, trans current transformers 10, brought to the front of the case and located below the mounting point of the switch, levers 11 of the linear and bus disconnector drives, located on the front of the case, low-voltage 12 compartment, fixed by screws on the edge of the shaft 13 of the drive of the high-voltage vacuum circuit breaker plate 14, partially enveloping the drive shaft , and having flat sections 15, 16 marked with the states of the high-voltage vacuum circuit breaker, and a removable panel window is made at the corresponding lateral edge of the chamber, opposite the plate section, corresponding to the state of the high voltage vacuum circuit breaker.

On the edge of the drive shaft of the high voltage vacuum circuit breaker, holes for plate mounting screws are made.

The plate is mounted on the shaft in such a way that the flat section corresponding to the state of the high-voltage vacuum circuit breaker is oriented vertically at any time, parallel to the plane of the removable panel.

The window of the removable panel is made opposite the flat section corresponding to the state of the high-voltage vacuum circuit breaker,

The switch is installed below the mounting location of the busbar disconnector and placed by the base 17 to the front side of the device.

The low voltage compartment is located in the front upper part of the device. The low-voltage compartment is separated from the rest of the housing by means of a removable partition 18.

The technological protective partition is made dielectric, restricting access to the busbars in its installed state,

The housing is equipped with upper 19 and lower 20 doors, on its front side, providing access to the inside of the device into the corresponding compartment of the camera.

The front side of the housing is made with the possibility of placing on it the controls 21.

Busbars are connected to a fixed 22 contacts located in the upper part of the housing of the bus disconnector, the movable 23 contacts of which are connected to the terminals of the switch.

The switch includes three separate high-voltage vacuum switches, according to the number of current phases combined by a common housing and a single control, the input terminals of the switches being the input terminals of the switch, and the output terminals of the switches output terminals of the switch.

Line and bus disconnectors and transformers are installed in the same vertical plane on the rear side of the device inside.

The back of the case is equipped with horizontal rungs for mounting disconnectors and a transformer.

The load buses with a linear disconnector are located at the bottom of the device.

The switch is located in the middle of the device.

The technological protective partition is removable, with the possibility of its installation in a de-energized device, in the gap of open contacts 22, 23 of the bus disconnector.

The technological protective partition is installed horizontally.

On the front side of the device there are windows 24 that provide the ability to monitor the status of the disconnectors.

The camera team unilateral service type KCO-393AV is used as follows.

High voltage of 6 or 10 kV from a three-phase alternating current source (power supply) is supplied to the busbars. To connect the load to the power source, close the bus and linear disconnectors by acting on the levers of the drive disconnectors. Then, acting on the organs

control, turn on the switch 7, as a result of which the load is connected to the current source in accordance with the circuit of the main circuits of the device. When you turn on the switch 7 act through the drive on the shaft 13, which rotates, ensuring the closure of the contacts of the switch. When the shaft 13 of the drive of the switch 7 is rotated, the position of the curved plate changes, so that a section 15 is installed opposite the window 9 of the removable panel, the marking of which corresponds to the on state of the high-voltage vacuum circuit breaker, allowing the operator to directly monitor the state of the moving parts of the switch.

Disconnectors of the RVZ type can be used as disconnectors. As a vacuum circuit breaker, for example, a BB / TEL type circuit breaker can be used. When the device is on, current flows through the bus disconnector, circuit breaker, transformer, line disconnector to the device output to the load in series.

In the low-voltage compartment there are instruments for measuring and signaling equipment, control, relay protection and device control, which provide the ability to control the device. Governing bodies, in particular, emergency shutdown bodies in an emergency are located on the front side of the device. Signals and supply voltages from the terminals of the transformer are fed to the input of control, control and protection devices. The number of transformers is determined by the circuit of the main circuits of the device. As transformers can be used, current transformers, for example, type TOL-10. Instrumentation mounted on the front panel allows you to monitor the status of the electrical circuits of the high voltage line and the operation of the switch.

The KSO-393AV type one-way service chamber is equipped with on / off interlocks for disconnectors and circuit breakers and protection devices that enable the camera to be safely de-energized, the camera cannot be turned on unexpectedly during maintenance when busbars are connected to high-voltage mains, and the camera is switched off quickly in emergency situations, for example in case of overcurrent. The following locks are provided in the chamber: a lock that does not allow switching on / off of line and bus disconnectors when the high-voltage switch is turned on; a lock that does not allow the inclusion of grounding knives when the operating knives of the disconnector are turned on: a lock that does not allow the inclusion of disconnectors when the grounding knives are turned on;

blocking that does not allow the inclusion of a high-voltage switch when the disconnector is in an intermediate position.

To disconnect the load (de-energize the device), the circuit breaker is turned off by acting on the controls. In this case, the drive shaft 13 of the switch 7 is rotated in the opposite direction, providing installation opposite the window 9 of the section 16 with the marking corresponding to the off state of the switch 7. The drive levers of the bus and line disconnectors are unlocked. Acting on the levers, they provide the opening of the linear and bus disconnectors and close the earthing switches (not indicated in the drawing). At the same time, high voltage remains on the busbars and the fixed contacts of the busbar disconnector connected to the busbars. The remaining electrical equipment of the device becomes de-energized. To prevent access to the remaining busbars and fixed contacts of the busbar disconnector, a protective partition made of a dielectric is installed. In this case, the partition is installed in the contact gap of the bus disconnector, which additionally guarantees the impossibility of closing its contacts and supplying voltage to other devices of electrical equipment. The partition with its other side rests on guides mounted on the housing.

Access to the low-voltage compartment is provided by the upper door of the front side of the device.

Access to the line disconnector and load rails is provided by the lower door of the front panel.

A removable panel on the front of the device provides access to the mounting location of the switch.

The circuit breaker is installed in a de-energized device in the reverse order.

The proposed device is more convenient and safe to use in comparison with the prototype, and also has a large scope compared to the prototype, as it provides the ability to visually indicate the status of the high-voltage switch, even in cases where the switch used in the camera does not have a built-in status indicator , and can be used with the use of such switches.

The status indicator of the high-voltage vacuum circuit breaker (Fig.6) contains a sleeve 25 mounted on the end of the shaft 13 of the drive of the high-voltage vacuum circuit breaker, a curved plate, partially enveloping the sleeve in the plane

perpendicular to the axis of the drive shaft, mounted on the sleeve and having two marked flat sections 15, 16, corresponding to the on and off states of the high voltage vacuum circuit breaker.

The sleeve is made with holes for screws 26 of the mounting plate and mounted on the end of the drive shaft with a connecting screw. Marking of flat areas corresponds to the conditions of the high-voltage vacuum circuit breaker. The bending angle of the plate is determined by the angle of rotation of the shaft when switching the state of the high-voltage vacuum circuit breaker.

The status indicator of the high voltage vacuum circuit breaker operates as follows.

Since the sleeve is rigidly fixed to the drive shaft, and the curved plate, in turn, is rigidly fixed by screw connection with the sleeve, one of the two positions of the plate uniquely corresponds to any position of the drive shaft of the switch. The marking is applied to the flat sections of the plate, which are located at an angle determined by the angle of rotation of the shaft when switching the states of the switch. Frontal observation of the pointer enables the operator to determine the position of the shaft and, as a result, the state of the switch.

The proposed status indicator of the high-voltage vacuum circuit breaker is convenient in operation and provides a wider scope of the circuit breaker as it provides the ability to indicate the status of the high-voltage circuit breaker that does not have a built-in status indicator by visualizing the position of the circuit breaker drive shaft.

Claims (15)

1. The chamber is a single-sided service module of the type KSO-393AV, containing busbars located in the upper part of its housing, linear and busbar mounted on the rear side of the housing, configured to install a technological protective partition in the gap of its open contacts, disconnectors, a high-voltage vacuum circuit breaker, fixed inside the case horizontally and closed on the front side with a removable panel with a window, current transformers displayed on the front side of the case and located below the mounting points in of a vacuum-voltage circuit breaker, the actuators of the linear and bus disconnectors, located on the front side of the housing, a low-voltage compartment, characterized in that a plate is mounted on the edge of the drive shaft of the high-voltage vacuum circuit breaker, partially enveloping the axis of the drive shaft, and having flat sections with a marking of the states of the high-voltage a vacuum circuit breaker, and the removable panel window is made at the corresponding lateral edge of the chamber, opposite the portion of the plate corresponding to the high-voltage state of the vacuum circuit breaker. 2. The camera team unilateral service type KCO-393AV according to claim 1, characterized in that the plate is mounted on the edge of the drive shaft of the high-voltage vacuum circuit breaker by means of a screw connection. 3. One-way service prefabricated chamber type KSO-393AV according to claim 1, characterized in that the plate is fixed to the shaft so that the flat section corresponding to the state of the high-voltage vacuum circuit breaker is oriented vertically at any time parallel to the plane of the removable panel. 4. The camera team unilateral service type KSO-393AV according to claim 1, characterized in that the window of the removable panel is made opposite the flat section corresponding to the state of the high-voltage vacuum circuit breaker. 5. The camera team unilateral service type KCO-393AV according to claim 1, characterized in that the plate has two flat sections corresponding to the on and off state of the high voltage vacuum circuit breaker. 6. The camera team unilateral service type KCO-393AV according to claim 1, characterized in that the switch is installed below the mounting location of the bus disconnector and placed the base to the front side of the device. 7. The camera team unilateral service type KCO-393AV according to claim 1, characterized in that the low-voltage compartment is located in the front upper part of the device. 8. The camera team unilateral service type KCO-393AV according to claim 1, characterized in that the low-voltage compartment is separated from the rest of the housing by means of a removable partition. 9. The camera team unilateral service type KCO-393AV according to claim 1, characterized in that the housing is equipped with upper and lower doors on its front side. 10. The camera team unilateral service type KSO-393AV according to claim 1, characterized in that the front side of the housing is made with the possibility of placing controls on it. 11. The status indicator of the high voltage vacuum circuit breaker, characterized in that it contains a sleeve fixed to the end of the drive shaft of the high voltage vacuum circuit breaker, a curved plate mounted on the sleeve and made with two marked flat sections corresponding to the on and off states of the high voltage vacuum circuit breaker, and partially envelope sleeve in the plane perpendicular to the axis of the drive shaft. 12. The status indicator of the high voltage vacuum circuit breaker according to claim 11, characterized in that the sleeve is made with holes for plate mounting screws. 13. The status indicator of the high voltage vacuum circuit breaker according to claim 11, characterized in that the sleeve is fixed to the end of the drive shaft with a connecting screw. 14. The status indicator of the high voltage vacuum circuit breaker according to claim 11, characterized in that the marking of the flat sections corresponds to the states of the high voltage vacuum circuit breaker. 15. The status indicator of the high voltage vacuum circuit breaker according to claim 11, characterized in that the angle of bending of the plate is determined by the angle of rotation of the shaft when switching the state of the high voltage vacuum circuit breaker.