CN207853229U - A live display high voltage switchgear - Google Patents

Abstract

The utility model provides a kind of electrification and shows high-tension switch cabinet, and once that can be played a warning role when on-load switch is breakdown, the case where preventing on-load from closing disconnecting switch occurs, and avoids causing equipment and personal casualty loss.The utility model includes cabinet body frame, on-load switch is equipped in cabinet body frame, on-load switch is connected by transmission mechanism with operating mechanism, on-load switch is connected with main bus-bar, on-load switch is connected with disconnecting switch, disconnecting switch is connected with cable, high-tension switch cabinet further includes charged display device, charged display device includes the first insulator style sensor, second insulator style sensor and display, first insulator style sensor one end connected load switchs fracture, the first insulator style sensor other end connects display, the contact that second insulator style sensor one end connection disconnecting switch is connected with cable, the second insulator style sensor other end connects display.

Description

A live display high voltage switchgear

technical field

The utility model relates to a high-voltage switchgear, in particular to a live display high-voltage switchgear capable of warning when a load switch is broken down.

Background technique

Existing high-voltage switchgears are usually equipped with live display devices, such as the Chinese patent "Switch cabinet with medium and high voltage live indicator" with the announcement number "CN103050902A", which disclosed a medium and high voltage switchgear on April 17, 2013. The switchgear with electric indicator, including the cabinet body, the bottom of the cabinet body is equipped with grounding main busbar, the inner space of the cabinet body is divided into four units by the partition board, which are circuit breaker handcart room, relay instrument room, cable room and In the busbar room, the cable room is also equipped with a medium and high voltage live indicator and a lightning arrester, the medium and high voltage live indicator is connected to the cable, the lightning arrester is connected to the grounding switch, and the top of the cabinet is provided with 3 pressure relief devices.

The charging display device of the above-mentioned patent document is used for real-time voltage testing of the circuit to be tested, and prompts the charging status of the medium and high voltage circuit. However, the high-voltage switchgear is in the cold standby state in which the load switch and the isolating switch are disconnected for a long time. Once it enters the hot standby state in which the load switch is disconnected and the isolating switch is closed, or the operating state in which both the load switch and the isolating switch are closed, the load The two ends of the switch break need to withstand the instantaneous high voltage of the line. Due to the limitations of the live busbar and the structure of the high-voltage switchgear, it is impossible to conduct a fracture withstand voltage test on the load switch, so it is impossible to judge the integrity of the load switch. When the load switch is broken down, the isolating switch will be loaded, causing equipment and personnel loss.

Utility model content

In order to overcome the deficiencies in the above-mentioned prior art, the utility model provides a live display high-voltage switchgear, once the load switch is broken down, it can play a warning role, prevent the occurrence of the disconnection switch with load, and avoid causing damage to the equipment. and loss of personnel.

In order to achieve the above object, the utility model adopts the following technical solutions:

A live display high-voltage switchgear, comprising a cabinet frame, a load switch is arranged in the cabinet frame, the load switch is connected to an operating mechanism through a transmission mechanism, the load switch is connected to a main bus, and the load switch An isolating switch is connected, and the isolating switch is connected with a cable. The high-voltage switchgear also includes a charging display device, and the charging display device includes a first insulator-type sensor, a second insulator-type sensor and a display, and the first insulator-type sensor One end of the sensor is connected to the disconnection of the load switch, the other end of the first insulator sensor is connected to the display, one end of the second insulator sensor is connected to the contact of the isolating switch and the cable, and the other end of the second insulator sensor is connected to the the display.

As a preferred technical solution of the present utility model, the high-voltage switchgear includes a three-phase load switch, each phase load switch is correspondingly connected to a first insulator type sensor, and each phase load switch corresponding isolating switch is also correspondingly connected to a second insulator sensor.

As a preferred technical solution of the utility model, the main busbar is fixed on the cabinet frame through an insulating sleeve.

Compared with the prior art, the utility model has the beneficial effects that: the utility model can not only be used for real-time voltage testing of the circuit to be tested, prompting the electrification status of the medium and high voltage circuit, but also capable of triggering the load switch when the load switch is broken down. It can be used as a warning to prevent the occurrence of the disconnecting switch with load and avoid the loss of equipment and personnel.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a front view of the utility model.

In the figure: 1. Cabinet frame; 2. Main busbar; 3. Insulation bushing; 4. Load switch; 5. First insulator sensor; 6. Isolation switch; 7. Second insulator sensor; 8. Operating mechanism ; 9. Display.

Detailed ways

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

As shown in Figure 1 and Figure 2, a live display high-voltage switch cabinet includes a cabinet frame 1, a load switch 4 is arranged inside the cabinet frame 1, the load switch 4 is connected to the operating mechanism 8 through a transmission mechanism, and the load switch 4 The main busbar 2 is connected, and the main busbar 2 is fixed on the cabinet frame 1 through the insulating sleeve 3 . The load switch 4 is connected with an isolating switch 6, and the isolating switch 6 is connected with a cable.

The high-voltage switchgear also includes a charging display device. The charging display device includes a first insulator-type sensor 5, a second insulator-type sensor 7 and a display 9. One end of the first insulator-type sensor 5 is connected to the load switch fracture, and the other end of the first insulator-type sensor 5 is Connect the display 9, one end of the second insulator sensor 7 is connected to the contact point where the isolation switch 6 is connected to the cable, and the other end of the second insulator sensor 7 is connected to the display 9.

Further, the high-voltage switchgear includes three-phase load switches, each load switch 4 of each phase is correspondingly connected with a first insulator-type sensor 5 , and the disconnector 6 corresponding to each phase of load switch 4 is also correspondingly connected with a second insulator-type sensor 7 .

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (3)

1. a kind of electrification shows high-tension switch cabinet, including cabinet body frame, on-load switch, the load are equipped in the cabinet body frame Switch is connected by transmission mechanism with operating mechanism, and the on-load switch is connected with main bus-bar, and the on-load switch is connected with Disconnecting switch, the disconnecting switch are connected with cable, which is characterized in that and further include charged display device, the electrification display dress It sets including the first insulator style sensor, the second insulator style sensor and display, the first insulator style sensor one Connected load is held to switch fracture, the first insulator style sensor other end connects the display, second insulator The contact that formula sensor one end connection disconnecting switch is connected with cable, the second insulator style sensor other end connect institute State display.

2. a kind of electrification according to claim 1 shows high-tension switch cabinet, which is characterized in that the high-tension switch cabinet includes Three-phase load switch, per phase load switch is correspondingly connected with a first insulator style sensor, per phase load switch it is corresponding every It leaves pass and is also correspondingly connected with a second insulator style sensor.

3. a kind of electrification according to claim 1 shows high-tension switch cabinet, which is characterized in that the main bus-bar passes through insulation Casing is fixed on the cabinet body frame.