CN224035511U

CN224035511U - A bus phase comparison device

Info

Publication number: CN224035511U
Application number: CN202322856935.7U
Authority: CN
Inventors: 刘玉峰; 李然; 曹培隆; 张靖宇; 王凯
Original assignee: Beijing Capital Airport Power & Energy Co ltd
Current assignee: Beijing Capital Airport Power & Energy Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2026-03-24
Anticipated expiration: 2033-10-24

Abstract

The utility model relates to bus phase checking equipment which comprises a frame type switch handcart, two groups of fixed contact groups, two circuit breakers, two transfer switches and a voltmeter, wherein the incoming line ends of the two circuit breakers are correspondingly and electrically connected with the two groups of fixed contact groups, the outgoing line ends of the two circuit breakers are correspondingly and electrically connected with the static contacts of the two transfer switches, and the movable contacts of the two transfer switches are respectively and electrically connected with the two incoming line ends of the voltmeter. When the utility model is used, the fixed contact is only required to be contacted with the fixed contact in the 380V bus-bar switch bin of the phase to be nucleated, then the two transfer switches are rotated and the reading of voltage change is observed, thus the phase nucleation work can be completed, the short-distance approach of workers to a 380V voltage bus is avoided, the personal electric shock accident and equipment short-circuit accident caused in the phase nucleation process of the bus of a 380V voltage class distribution room can be effectively avoided, and meanwhile, the utility model also has the characteristics of simple manufacture, strong universality, easy mass manufacture and the like.

Description

Bus nuclear phase equipment

Technical Field

The utility model relates to the field of electricity, in particular to bus nuclear phase equipment.

Background

The cable wiring error is easy to cause in the process of maintaining the equipment cables before the power generation of the 380V bus or above the transformer of the power transformation and distribution room, so that the A, B, C three-phase check phase work of the 380V bus is needed, and the phenomenon that the rotating equipment such as a motor and the like is reversed when the two sections of buses of the 380V voltage are inconsistent in phase to cause single-path operation is prevented, thereby causing operation accidents. In the process of checking phases by using the universal meter for the 380V voltage bus, because the bus is electrified and overlapped in the bus installation process, personal electric shock accidents and equipment short-circuit accidents are very easy to cause.

Disclosure of utility model

The technical problem to be solved by the utility model is to provide the line nuclear phase equipment, which can effectively avoid personal electric shock accidents and equipment short-circuit accidents in the 380V voltage class distribution room bus nuclear phase process.

The technical scheme for solving the technical problems is as follows, the bus nuclear phase equipment comprises:

Frame type switch handcart;

Two groups of fixed contact groups, wherein the two groups of fixed contact groups are respectively arranged on the upper side and the lower side of one surface of the frame type switch handcart;

The circuit breaker, two change-over switches and a voltmeter, two the circuit breaker, two change-over switches and one the voltmeter all sets up on the another side of frame-type switch handcart, two the incoming wire end of circuit breaker corresponds with two sets of fixed contact group electricity is connected, two the outgoing line end of circuit breaker corresponds with two change-over switches's stationary contact electricity is connected, two change-over switches's movable contact respectively with two incoming wire ends electricity of voltmeter are connected.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, each of the fixed contact groups includes three fixed contacts, and the three fixed contacts in each of the fixed contact groups are arranged in the horizontal direction.

Further, each of the circuit breakers is a three-phase miniature circuit breaker.

Further, each change-over switch is a three-gear change-over switch.

Further, the voltmeter is specifically a pointer voltmeter or a digital voltmeter.

Further, the frame type switch cart includes:

a base;

The screw rod assembly is arranged on the base;

and the frame switch panel is vertically arranged on the nut of the screw rod assembly.

Further, the two fixed contact sets are respectively arranged on the upper side and the lower side of one surface of the frame switch panel, and the two circuit breakers, the two transfer switches and the one voltmeter are all arranged on the other surface of the frame switch panel.

Further, the frame type switch handcart further comprises a crank, and the crank is in shaft connection with the screw rod of the screw rod assembly.

Further, a limiting device is arranged on the screw rod assembly.

Further, the bottom of the base is provided with a pulley.

The utility model has the advantages that when the bus nuclear phase equipment is used, only the fixed contact on the frame type switch handcart is required to be contacted with the fixed contact in the 380V bus-bar switch bin to be nuclear phase, then the two transfer switches are rotated and the reading of voltage change is observed, thus nuclear phase work can be completed, the short-distance approach of a worker to a 380V voltage bus is avoided, personal electric shock accidents and equipment short-circuit accidents in the bus nuclear phase process of a 380V voltage distribution room can be effectively avoided, and meanwhile, the utility model has the characteristics of simple manufacture, strong universality, easiness in large-scale manufacture and the like.

Drawings

FIG. 1 is a schematic diagram of a bus bar phase checking device;

FIG. 2 is a schematic diagram showing the connection states of a circuit breaker, a change-over switch and a voltmeter in a bus nuclear phase device according to the present utility model;

fig. 3 is a schematic circuit diagram of a circuit breaker, a change-over switch and a voltmeter connection in a bus nuclear phase device according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a frame type switch handcart, 11, a base, 12, a frame switch panel, 13 and a crank, 2, a fixed contact group, 3, a circuit breaker, 4, a change-over switch, 5 and a voltmeter.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1, the bus phase checking equipment comprises a frame type switch handcart 1, two groups of fixed contact sets 2, two circuit breakers 3, two transfer switches 4 and a voltmeter 5, wherein the two groups of fixed contact sets 2 are respectively arranged on the upper side and the lower side of one surface of the frame type switch handcart 1, and the two circuit breakers 3, the two transfer switches 4 and the voltmeter 5 are respectively arranged on the other surface of the frame type switch handcart 1.

In some embodiments, the frame switch cart 1 comprises:

A base 11;

A screw assembly mounted on the base 11;

a frame switch panel 12, the frame switch panel 12 being vertically mounted on a nut of the screw assembly.

Specifically, the two fixed contact sets 2 are respectively arranged on the upper side and the lower side of one surface of the frame switch panel 12, and the two circuit breakers 3, the two transfer switches 4 and the voltmeter 5 are all arranged on the other surface of the frame switch panel 12.

Preferably:

The frame type switch handcart 1 further comprises a crank 13, and the crank 13 is in shaft connection with a screw rod of the screw rod assembly. The screw rod in the screw rod assembly is rotated through the crank 13 to enable the nut to move back and forth, so that the frame switch panel 12 is driven to move, the position of the fixed contact group 2 on the frame switch panel 12 is adjusted to be in contact with the fixed contact in the 380V bus-bar switch bin, the operation is convenient, and personal electric shock accidents and equipment short-circuit accidents caused in the bus phase checking process of the 380V voltage class distribution room are avoided.

And the screw rod assembly is provided with a limiting device. The limiting device has the functions of fixed contact in-place travel indication and locking, and can avoid damage caused by pressing a fixed contact in a 380V bus-tie switch bin after the fixed contact is in place.

The bottom of the base 11 is provided with a pulley 13. The pulley 13 is arranged to facilitate movement of the bus nuclear phase equipment, and the pulley 13 can be provided with a braking function, so that the bus nuclear phase equipment is fixed through the braking function after the bus nuclear phase equipment moves to a general position, and inconvenience caused by movement of the bus nuclear phase equipment in the nuclear phase operation process is avoided.

As shown in fig. 2, the wire inlet ends of the two circuit breakers 3 are correspondingly and electrically connected with the two fixed contact groups 2, the wire outlet ends of the two circuit breakers 3 are correspondingly and electrically connected with the static contacts of the two transfer switches 4, and the movable contacts of the two transfer switches 4 are respectively and electrically connected with the two wire inlet ends of the voltmeter 5.

Specifically, as shown in fig. 1 and 3, each of the fixed contact groups 2 includes three fixed contacts, and the three fixed contacts in each of the fixed contact groups 2 are arranged in the horizontal direction. Each of the circuit breakers 3 is a three-phase miniature circuit breaker. Each of the change-over switches 4 is a three-gear change-over switch. The voltmeter 5 is specifically a pointer type voltmeter or a digital voltmeter, the cost of the book can be reduced by using the digital voltmeter, and the digital voltmeter is practical and convenient for reading voltage parameters during nuclear phase.

The process of carrying out phase checking by using the bus phase checking equipment provided by the utility model is as follows (taking a 380V voltage 4# bus and 5# bus A, B, C three-phase checking phase work as an example):

Firstly, switching on 380V distribution room low-voltage 401 and 402 switches, charging 380V voltage 4# and 5# buses of the distribution room, drawing out 380V bus-bar switch, placing bus nuclear phase equipment into a 380V bus-bar switch bin, and rocking a crank 13 to enable fixed contacts 2 on the upper side and the lower side of one side of a frame switch panel 12 to be in contact with fixed contacts in the 380V bus-bar switch bin. Two circuit breakers 3 on the other surface of the frame switch panel 12 are respectively switched on, the handle of one change-over switch 4 is turned to the A-phase switching-on position, the handle of the other change-over switch 4 is turned to A, B, C phases respectively, and the voltmeter 5 indicates that the voltage is 0-1V, 380V and 380V respectively. Then the handle of one change-over switch 4 is turned to the B phase connection position, and the handle of the other change-over switch 4 is turned to A, B, C phases respectively, and the voltmeter 5 indicates 380V, 0-1V and 380V respectively. Finally, the handle of one change-over switch 4 is turned to the C phase connection position, the handle of the other change-over switch 4 is turned to A, B, C phases respectively, and the voltmeter 5 indicates 380V, 380V and 0-1V respectively. The two groups of bus voltages have correct phases, and the phase checking is completed. In the phase checking process, if the reading of the voltmeter 5 is not in the corresponding range, the phase of the two sections of buses is inconsistent, and then maintenance personnel can be dispatched for maintenance.

When the bus nuclear phase equipment is used, the fixed contact on the frame type switch handcart is only required to be contacted with the fixed contact in the 380V bus-bar switch bin of the nuclear phase, then the two transfer switches are rotated and the reading of voltage change is observed, so that nuclear phase work can be completed, workers are prevented from approaching the 380V voltage bus in a short distance, personal electric shock accidents and equipment short-circuit accidents in the 380V voltage-class distribution room bus nuclear phase process can be effectively avoided, and meanwhile, the bus nuclear phase equipment has the characteristics of simplicity in manufacture, strong universality, easiness in large-scale manufacture and the like.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A bus bar nuclear phase apparatus, comprising:

Frame type switch handcart;

2. The bus bar nuclear phase apparatus of claim 1 wherein each of said fixed contact sets includes three fixed contacts therein, and wherein three fixed contacts in each of said fixed contact sets are arranged in a horizontal direction.

3. The bus bar phase-checking apparatus according to claim 2, wherein each of the circuit breakers is a three-phase miniature circuit breaker.

4. A bus bar phase checking apparatus according to claim 3, wherein each of said change-over switches is a three-position change-over switch.

5. The busbar nuclear phase device according to any one of claims 1 to 4, wherein the voltmeter is in particular a pointer voltmeter or a digital voltmeter.

6. The bus bar nuclear phase apparatus of any one of claims 1 to 4 wherein the frame switch cart comprises:

a base;

The screw rod assembly is arranged on the base;

7. The bus bar phase checking apparatus according to claim 6, wherein two fixed contact groups are respectively provided on upper and lower sides of one face of the frame switch panel, and two circuit breakers, two transfer switches, and one voltmeter are all provided on the other face of the frame switch panel.

8. The bus bar nuclear phase apparatus of claim 6 wherein said frame switch cart further comprises a crank, said crank being journalled with a screw of said screw assembly.

9. The bus bar nuclear phase apparatus of claim 6 wherein the lead screw assembly is provided with a stop device.

10. The bus bar nuclear phase apparatus of claim 6 wherein the base bottom is provided with pulleys.