CN210430669U - Cubical switchboard overhauls with examining electric dolly - Google Patents
Cubical switchboard overhauls with examining electric dolly Download PDFInfo
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- CN210430669U CN210430669U CN201921584445.3U CN201921584445U CN210430669U CN 210430669 U CN210430669 U CN 210430669U CN 201921584445 U CN201921584445 U CN 201921584445U CN 210430669 U CN210430669 U CN 210430669U
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- grounding
- vertical plate
- supporting vertical
- capacitance sensor
- conductive arm
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Abstract
An electricity testing trolley for switch cabinet maintenance comprises a base, wherein a supporting vertical plate is arranged on the base, a capacitance sensor is fixedly arranged at a position close to the upper end of one side of the supporting vertical plate, a conductive arm is fixed at one end of the capacitance sensor through a connecting bolt, a contact is arranged at one end, away from the capacitance sensor, of the conductive arm, and a buzzing electroscope is fixedly arranged on the capacitance sensor; a grounding static contact extending downwards is arranged on the capacitance sensor, and a grounding mechanism is arranged on a base right below the grounding static contact; an electrified display is arranged on the supporting vertical plate, and an output secondary connecting terminal on the capacitance sensor is connected with the electrified display through a secondary line. By adopting the structure, the operation and maintenance work can be greatly facilitated, the personal safety of workers is guaranteed, and unsafe contact of the workers is avoided.
Description
Technical Field
The utility model relates to an electric power system transformer operation switching operating means field, especially a cubical switchboard overhauls with examining electric dolly.
Background
High tension switchgear is comparatively common-use switchgear, and when the cubical switchboard overhauld bus-bar system, according to safe technical measure, need have a power failure, test electricity, ground connection, because of the totally enclosed structure of generating line and bus insulation, often open the generating line chamber apron and all hardly accomplish and test electricity ground connection, if have a power failure thoroughly, very easily cause personnel and live equipment safe distance not enough to lead to the personal electric shock accident, seriously harm personal safety.
Disclosure of Invention
The utility model aims to solve the technical problem that an electricity testing trolley for switch cabinet overhaul is provided, the work of maintenance is overhauld in convenient fortune that can be very big, guarantee staff personal safety avoids staff's unsafe contact.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: an electricity testing trolley for switch cabinet maintenance comprises a base, wherein a supporting vertical plate is arranged on the base, a capacitance sensor is fixedly arranged at a position close to the upper end of one side of the supporting vertical plate, a conductive arm is fixed at one end of the capacitance sensor through a connecting bolt, a contact is arranged at one end, away from the capacitance sensor, of the conductive arm, and a buzzing electroscope is fixedly arranged on the capacitance sensor;
the capacitance sensor is provided with a grounding static contact extending downwards, and a base right below the grounding static contact is provided with a grounding mechanism;
the support riser on be equipped with electrified display, output secondary connecting terminal on the capacitive sensor passes through the secondary line and is connected with electrified display.
In a preferred scheme, the grounding mechanism comprises a moving contact support fixed on the base, a horizontal transmission shaft is arranged on the moving contact support, a grounding moving contact piece is arranged on the transmission shaft, a grounding wire is arranged on the grounding moving contact piece, the transmission shaft penetrates through the middle of the grounding moving contact piece, one end of the grounding moving contact piece is hinged to one end of a transmission connecting rod, the other end of the transmission connecting rod is hinged to one end of an operating handle, the operating handle penetrates through a supporting vertical plate, and the portion, penetrating through the supporting vertical plate, of the operating handle is fixed through a shaft.
In the preferred scheme, the side wall of the supporting vertical plate is provided with a locking device, the operating handle penetrates through the locking device, the locking device is provided with a locking electromagnetic valve, and the locking electromagnetic valve is connected with the output secondary connecting terminal through a secondary line.
In the preferred scheme, the top of the supporting vertical plate is provided with a secondary plug head, and the secondary plug head is used for controlling the on-off of a circuit where the charged display and the locking device are located.
In the preferred scheme, the number of the buzzing electroscope and the number of the capacitance sensors are three, and the three buzzing electroscopes and the three capacitance sensors are connected to the A-phase conductive arm, the B-phase conductive arm and the C-phase conductive arm in a one-to-one correspondence manner.
The utility model provides a cubical switchboard overhauls with examining electric dolly through adopting above-mentioned structure, has following beneficial effect:
(1) the method simplifies the electricity testing operation steps of the switch cabinet in the bus maintenance process, improves the maintenance operation efficiency and ensures the safety of workers;
(2) if the switch cabinet is electrified in the electricity testing process, the locking electromagnetic valve can be started and the operation of the handle is forbidden, so that the misoperation of closing a switch is avoided, and the safety of the device is improved;
(3) the device is convenient to transport, and can be repeatedly used for switch cabinet maintenance operation at different places.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic structural diagram of the grounding mechanism of the present invention.
In the figure: the device comprises a conductive arm 1, a capacitance sensor 2, a contact 3, a connecting bolt 4, a buzzer electroscope 5, a live display 6, a grounding static contact 7, a locking device 8, a transmission connecting rod 9, a moving contact support 10, an output secondary connecting terminal 11, a grounding moving contact piece 12, an operating handle 13, a secondary plug head 14, a base 15, a supporting vertical plate 16, a transmission shaft 17, a grounding wire 18 and a locking electromagnetic valve 19.
Detailed Description
As shown in fig. 1-3, an electricity testing trolley for switch cabinet maintenance comprises a base 15, wherein a supporting vertical plate 16 is arranged on the base 15, a capacitance sensor 2 is fixedly arranged on one side of the supporting vertical plate 16 at a position close to the upper end, a conductive arm 1 is fixed on one end of the capacitance sensor 2 through a connecting bolt 4, a contact 3 is arranged on one end of the conductive arm 1 far away from the capacitance sensor 2, and a buzzing electroscope 5 is fixedly arranged on the capacitance sensor 2;
a grounding static contact 7 extending downwards is arranged on the capacitance sensor 2, and a grounding mechanism is arranged on a base 15 right below the grounding static contact 7;
the support vertical plate 16 is provided with an electrified display 6, and an output secondary connecting terminal 11 on the capacitance sensor 2 is connected with the electrified display 6 through a secondary line.
In a preferable scheme, the grounding mechanism comprises a movable contact support 10 fixed on a base 15, a horizontal transmission shaft 17 is arranged on the movable contact support 10, a grounding movable contact piece 12 is arranged on the transmission shaft 17, a grounding wire 18 is arranged on the grounding movable contact piece 12, the transmission shaft 17 penetrates through the middle of the grounding movable contact piece 12, one end of the grounding movable contact piece 12 is hinged with one end of a transmission connecting rod 9, the other end of the transmission connecting rod 9 is hinged with one end of an operating handle 13, the operating handle 13 penetrates through a supporting vertical plate 16, and the part of the operating handle 13 penetrating through the supporting vertical plate 16 is fixed through a shaft.
In a preferable scheme, a locking device 8 is arranged on the side wall of the supporting vertical plate 16, the operating handle 13 penetrates through the locking device 8, a locking electromagnetic valve 19 is arranged on the locking device 8, and the locking electromagnetic valve 19 is connected with the output secondary connecting terminal 11 through a secondary line.
In a preferred scheme, a secondary plug head 14 is arranged at the top of the supporting vertical plate 16, and the secondary plug head 14 is used for controlling the on-off of a circuit where the charged display 6 and the locking device 8 are located.
In the preferred scheme, the number of the buzzing electroscope 5 and the number of the capacitance sensors 2 are three, and the three buzzing electroscopes 5 and the three capacitance sensors 2 are connected to the phase A conductive arm, the phase B conductive arm and the phase C conductive arm in a one-to-one correspondence manner.
In a preferred embodiment, the two latching solenoid valves 19 are respectively disposed at the opening and closing positions of the latching device 8, and the latching solenoid valve 19 located at the opening position is connected to the capacitive sensor 2.
The novel operation flow is as follows:
1) inserting the secondary plug head 14 to electrify the electrified display 6 and the locking device 8 of the grounding trolley;
2) determining the grounding movable contact spring 12 of the grounding trolley at the disconnection position, and pushing the trolley to the working position of the switch cabinet after determining the disconnection position;
3) the contact 3 is attached to the switch cabinet, and the live display 6 and the buzzing electroscope 5 of the trolley can simultaneously judge whether the bus is live;
4.1) if no electricity is judged, the anti-misoperation locking device 8 on the operating handle 13 is released, the operating handle 13 is lifted, the grounding movable contact piece 12 is contacted with the grounding fixed contact 7, at the moment, the switch is switched on, and then the operating handle 13 is locked at the switch-on position;
4.2) if the electricity is judged, the electrified display 6 connected with the capacitive sensor 2 through a secondary line displays electrification, meanwhile, a loop where the locking electromagnetic valve 19 is located is communicated, the locking electromagnetic valve 19 is started, and the locking electromagnetic valve 19 locks the operating handle 13 through excitation, so that the situation that an operator mistakenly closes the grounding knife switch is avoided.
By adopting the structure, the electricity testing operation steps of the switch cabinet in the bus maintenance process are simplified, the maintenance operation efficiency is improved, and the safety of workers is guaranteed; if the switch cabinet is electrified in the electricity testing process, the locking electromagnetic valve can be started and the operation of the handle is forbidden, so that the misoperation of closing a switch is avoided, and the safety of the device is improved; the device is convenient to transport, and can be repeatedly used for switch cabinet maintenance operation at different places.
Claims (5)
1. The utility model provides a cubical switchboard overhauls with examining electric dolly, includes base (15), characterized by: a supporting vertical plate (16) is arranged on the base (15), a capacitive sensor (2) is fixedly arranged on one side of the supporting vertical plate (16) at a position close to the upper end, a conductive arm (1) is fixed on one end of the capacitive sensor (2) through a connecting bolt (4), a contact (3) is arranged on one end, far away from the capacitive sensor (2), of the conductive arm (1), and a buzzing electroscope (5) is fixedly arranged on the capacitive sensor (2);
a grounding static contact (7) extending downwards is arranged on the capacitance sensor (2), and a grounding mechanism is arranged on a base (15) right below the grounding static contact (7);
the support vertical plate (16) is provided with an electrified display (6), and an output secondary connecting terminal (11) on the capacitance sensor (2) is connected with the electrified display (6) through a secondary line.
2. The switch cabinet overhauls uses and tests electric dolly of claim 1 characterized in that: the grounding mechanism comprises a movable contact support (10) fixed on a base (15), a horizontal transmission shaft (17) is arranged on the movable contact support (10), a grounding movable contact piece (12) is arranged on the transmission shaft (17), a grounding wire (18) is arranged on the grounding movable contact piece (12), the transmission shaft (17) penetrates through the middle of the grounding movable contact piece (12), one end of the grounding movable contact piece (12) is hinged to one end of a transmission connecting rod (9), the other end of the transmission connecting rod (9) is hinged to one end of an operating handle (13), the operating handle (13) penetrates through a supporting vertical plate (16) to be arranged, and the operating handle (13) penetrates through the supporting vertical plate (16) to be fixed through a shaft.
3. The switch cabinet overhauls with examining electric dolly of claim 2, characterized in that: support riser (16) lateral wall on be equipped with blocking device (8), operating handle (13) pass blocking device (8) and set up, be equipped with on blocking device (8) shutting solenoid valve (19), shutting solenoid valve (19) are connected with output secondary connection terminal (11) through the secondary line.
4. The switch cabinet overhauls uses and tests electric dolly of claim 3 characterized in that: the top of the supporting vertical plate (16) is provided with a secondary plug head (14), and the secondary plug head (14) is used for controlling the on-off of a circuit where the charged display (6) and the locking device (8) are located.
5. The switch cabinet overhauls uses and tests electric dolly of claim 1 characterized in that: buzzing electroscope (5), capacitive sensor (2) all be equipped with threely, three buzzing electroscope (5) and three capacitive sensor (2) one-to-one connect on A looks electrically conductive arm, B looks electrically conductive arm, C looks electrically conductive arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584445.3U CN210430669U (en) | 2019-09-23 | 2019-09-23 | Cubical switchboard overhauls with examining electric dolly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921584445.3U CN210430669U (en) | 2019-09-23 | 2019-09-23 | Cubical switchboard overhauls with examining electric dolly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210430669U true CN210430669U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921584445.3U Active CN210430669U (en) | 2019-09-23 | 2019-09-23 | Cubical switchboard overhauls with examining electric dolly |
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| CN (1) | CN210430669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114300997A (en) * | 2021-12-31 | 2022-04-08 | 国网山东省电力公司潍坊供电公司 | Special electricity testing grounding device for integrated switch cabinet bus |
-
2019
- 2019-09-23 CN CN201921584445.3U patent/CN210430669U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114300997A (en) * | 2021-12-31 | 2022-04-08 | 国网山东省电力公司潍坊供电公司 | Special electricity testing grounding device for integrated switch cabinet bus |
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