阅读说明：本技术 开关柜的验电接地方法和系统、及验电接地车 (Electricity testing grounding method and system of switch cabinet and electricity testing grounding vehicle ) 是由 薛斐 赵新 辛春雷 薛小超 张鹏涛 于 2020-12-22 设计创作，主要内容包括：本公开提供一种开关柜的验电接地方法和系统、及验电接地车,涉及开关柜技术领域。本公开实施例中的开关柜的验电接地方法,在开关柜检修维护时,可采用电动或手动操作对本段主母线进行验电、接地。具体地,将验电接地车从柜外推进至试验位置,通过控制盒连接外部电源线及信号线,检修人员可在远方(配电室内)进行操作,检修人员无需在开关柜正面操作,验电过程有视觉和听觉双重保障,最大限度地确保人身和设备安全,操作无需更换其他专用工具,便捷、可靠、在较短时间内实现验电和接地功能。(The utility model provides an electricity testing grounding method and system of a switch cabinet and an electricity testing grounding vehicle, and relates to the technical field of switch cabinets. According to the electricity testing and grounding method of the switch cabinet in the embodiment of the disclosure, when the switch cabinet is overhauled and maintained, electric or manual operation can be adopted to test electricity and ground the main bus of the section. Specifically, the electricity testing grounding vehicle is pushed to a testing position from the outside of the cabinet and is connected with an external power line and a signal line through the control box, so that a maintainer can operate in a remote place (in a distribution room), the maintainer does not need to operate on the front side of the switch cabinet, double guarantee of vision and hearing is provided in the electricity testing process, personal and equipment safety is ensured to the maximum extent, other special tools do not need to be replaced in operation, and the electricity testing and grounding functions are conveniently, reliably and conveniently realized in a short time.)

1. An electricity testing grounding method for a switch cabinet, characterized by comprising the following steps:

determining whether an electric grounding switch on the electricity testing grounding vehicle is in a brake-off state and whether a manual operation valve of the grounding switch on the electricity testing grounding vehicle is in a closed state;

if the electric grounding switch on the electricity testing grounding vehicle is in a brake-off state and the manual operation valve of the grounding switch on the electricity testing grounding vehicle is in a closed state, connecting the secondary navigation socket of the electricity testing grounding vehicle with the secondary navigation socket of the control box through the secondary navigation plug, and opening the power switch on the control box;

detecting whether a power indicator lamp on the control box and a handcart ready lamp, a handcart test position lamp, a ground switch ready lamp and a ground switch separating position lamp of a ground switch operating module on the control box are all lighted;

if a power indicator lamp on the control box and a handcart ready lamp, a handcart test position lamp, a grounding switch ready lamp and a grounding switch separating position lamp of a grounding switch operation module on the control box are all lighted, the preparation work of the electricity testing grounding vehicle is determined to be finished;

pressing a handcart shake-in button of a grounding knife operation module on a control box, shaking an electricity testing grounding vehicle into a working position, connecting a primary moving contact on the electricity testing grounding vehicle with a fixed contact of a switch cabinet to be tested, transmitting a power supply signal to an electrified display and an alarm by an electricity testing porcelain bottle connected with the primary moving contact, and starting electricity testing by the electricity testing grounding vehicle;

if the electrified state lamp of the electrified display is not on, the alarm is not on, and the handcart ready lamp, the handcart working position lamp, the grounding switch ready lamp and the grounding switch separating position lamp of the grounding switch operation module on the control box are all on, determining that the fixed contact of the switch cabinet to be tested is not electrified, and completing the electricity testing of the electricity testing grounding vehicle;

and a ground knife switch-on button of the ground knife operation module is pressed down on the control box, the grounding switch on the electricity testing grounding vehicle runs to a switch-on state, and the grounding work of the electricity testing grounding vehicle is finished.

2. The method as claimed in claim 1, wherein the handcart shaking-in button of the grounding knife operation module is pressed on the control box, the electricity testing grounding vehicle is shaken into a working position, a primary moving contact on the electricity testing grounding vehicle is connected with a fixed contact of a switch cabinet to be tested, an electricity testing porcelain bottle connected with the primary moving contact transmits a power supply signal to the electrified display and the alarm, and the electricity testing grounding vehicle starts to test electricity;

the handcart shake-in button of the grounding knife operation module is pressed down on the control box, the chassis vehicle operating mechanism on the electricity testing grounding vehicle shakes the electricity testing grounding vehicle into a working position, a primary moving contact on the electricity testing grounding vehicle is connected with a static contact of a switch cabinet to be tested, an electricity testing porcelain bottle connected with the primary moving contact transmits a power supply signal to the electrified display and the alarm, and the electricity testing grounding vehicle starts to test electricity.

3. The method of claim 1, wherein the ground switch closing button of the ground switch operating module is pressed on the control box, the grounding switch on the electricity testing grounding vehicle is operated to a closing state, and the completion of the grounding work of the electricity testing grounding vehicle comprises:

and a ground knife closing button of the ground knife operation module is pressed on the control box, a grounding switch operating mechanism on the electricity testing grounding vehicle operates a grounding switch on the electricity testing grounding vehicle to a closing state, and the grounding work of the electricity testing grounding vehicle is finished.

4. The utility model provides an electricity inspection earthing vehicle, its characterized in that, electricity inspection earthing vehicle includes the chassis car, set up in ground connection copper bar, chassis car subassembly and frame on the chassis car, be provided with earthing switch subassembly, primary moving contact on the frame, with the electricity inspection electromagnetic bottle that primary moving contact is connected, earthing switch divide-shut brake position observation window, earthing switch divide-shut brake indicator, alarm, electrified display and the secondary navigation socket of electricity inspection earthing vehicle.

5. The earth-testing grounding vehicle according to claim 4, further comprising a grounding switch manual operation shutter and a grounding switch manual operation shutter position switch provided on the frame.

6. The earth-testing grounding vehicle according to claim 4 or 5, wherein the grounding switch assembly comprises a grounding switch, a grounding switch electric operating motor, a grounding switch position switch, and a grounding switch manual operating handle.

7. The experience grounding vehicle of claim 4 or 5, wherein the chassis vehicle assembly comprises a chassis electric operating motor, a chassis position switch, a chassis manual operating interlock pulley, a chassis manual operating hole, a chassis manual operating position switch, and a chassis manual operating handle.

8. An electroscopic grounding system for a switchgear cabinet, said system comprising:

the system comprises an electricity testing grounding vehicle, a control box electrically connected with the electricity testing grounding vehicle, and a secondary navigation plug for connecting the electricity testing grounding vehicle and the control box;

the electroscopic earthing vehicle comprises the electroscopic earthing vehicle defined in any one of claims 4-7.

9. The electricity testing grounding system of claim 8, wherein the control box is provided with an electric handcart grounding switch control module, a power indicator lamp, a power supply air switch and a control box secondary navigation socket.

10. The electricity-testing grounding vehicle of claim 9, wherein the electric handcart grounding switch control module comprises a handcart control module, a grounding switch operation module, a handcart shaking-in button, a handcart shaking-out button, a grounding switch closing button, a grounding switch opening button and a reset button.

Technical Field

The disclosure relates to the technical field of switch cabinets, in particular to an electricity testing grounding method and system of a switch cabinet and an electricity testing grounding vehicle.

Background

When the 10kV medium-voltage system switch cabinet is in power failure maintenance, in order to protect personal safety, the feeder line cabinet generally adopts a grounding switch, the inlet wire or the PT cabinet adopts a special valve for opening the valve to open the handcart, then the electricity is tested by the electricity testing rod, and the valve is shaken out to open the handcart to remotely access the grounding handcart after the electricity is confirmed to be out. The incoming line or PT cabinet needs two handcarts, one tool and four steps to complete the operation process, and then the safe overhaul can be realized. The biggest danger of the operation process is that the hand-in/hand-out handcart and the electricity testing rod are manually operated by the maintainer on the front side of the switch cabinet, and if the equipment to be repaired breaks down, the safety potential hazard is greater. In addition, the electricity testing and grounding operation equipment is more in variety, the operation process is complicated, and the operation time is longer. For the maintenance work with short power failure time and more uncertain factors, the conditions of delayed power transmission or incomplete work and the like often occur, so that the influence on the production and life power supply of users is large. Shortening the early inspection time and protecting personal safety are necessary measures for reducing the influence, and users have suggestions for integrating maintenance tools.

Disclosure of Invention

The embodiment of the disclosure provides an electricity testing grounding method and system for a switch cabinet and an electricity testing grounding vehicle.

According to a first aspect of the embodiments of the present disclosure, there is provided an electricity testing grounding method for a switch cabinet, the method comprising:

determining whether an electric grounding switch on the electricity testing grounding vehicle is in a brake-off state and whether a manual operation valve of the grounding switch on the electricity testing grounding vehicle is in a closed state;

if the electric grounding switch on the electricity testing grounding vehicle is in a brake-off state and the manual operation valve of the grounding switch on the electricity testing grounding vehicle is in a closed state, connecting the secondary navigation socket of the electricity testing grounding vehicle with the secondary navigation socket of the control box through the secondary navigation plug, and opening the power switch on the control box;

detecting whether a power indicator lamp on the control box and a handcart ready lamp, a handcart test position lamp, a ground switch ready lamp and a ground switch separating position lamp of a ground switch operating module on the control box are all lighted;

if a power indicator lamp on the control box and a handcart ready lamp, a handcart test position lamp, a grounding switch ready lamp and a grounding switch separating position lamp of a grounding switch operation module on the control box are all lighted, the preparation work of the electricity testing grounding vehicle is determined to be finished;

pressing a handcart shake-in button of a grounding knife operation module on a control box, shaking an electricity testing grounding vehicle into a working position, connecting a primary moving contact on the electricity testing grounding vehicle with a fixed contact of a switch cabinet to be tested, transmitting a power supply signal to an electrified display and an alarm by an electricity testing porcelain bottle connected with the primary moving contact, and starting electricity testing by the electricity testing grounding vehicle;

if the electrified state lamp of the electrified display is not on, the alarm is not on, and the handcart ready lamp, the handcart working position lamp, the grounding switch ready lamp and the grounding switch separating position lamp of the grounding switch operation module on the control box are all on, determining that the fixed contact of the switch cabinet to be tested is not electrified, and completing the electricity testing of the electricity testing grounding vehicle;

and a ground knife switch-on button of the ground knife operation module is pressed down on the control box, the grounding switch on the electricity testing grounding vehicle runs to a switch-on state, and the grounding work of the electricity testing grounding vehicle is finished.

In one embodiment, the handcart rolling-in button of the earthing switch operation module is pressed on the control box, the electricity testing grounding vehicle is rolled into a working position, a primary moving contact on the electricity testing grounding vehicle is connected with a fixed contact of a switch cabinet to be tested, an electricity testing porcelain bottle connected with the primary moving contact transmits a power supply signal to the electrified display and the alarm, and the electricity testing grounding vehicle starts to test electricity;

the handcart shake-in button of the grounding knife operation module is pressed down on the control box, the chassis vehicle operating mechanism on the electricity testing grounding vehicle shakes the electricity testing grounding vehicle into a working position, a primary moving contact on the electricity testing grounding vehicle is connected with a static contact of a switch cabinet to be tested, an electricity testing porcelain bottle connected with the primary moving contact transmits a power supply signal to the electrified display and the alarm, and the electricity testing grounding vehicle starts to test electricity.

In one embodiment, the pressing of the switch-on button of the earthing switch operating module on the control box causes the earthing switch on the electric earthing test vehicle to operate to a switch-on state, and the completion of the earthing operation of the electric earthing test vehicle comprises:

and a ground knife closing button of the ground knife operation module is pressed on the control box, a grounding switch operating mechanism on the electricity testing grounding vehicle operates a grounding switch on the electricity testing grounding vehicle to a closing state, and the grounding work of the electricity testing grounding vehicle is finished.

According to the electricity testing and grounding method of the switch cabinet in the embodiment of the disclosure, when the switch cabinet is overhauled and maintained, electric or manual operation can be adopted to test electricity and ground the main bus of the section. Specifically, the electricity testing grounding vehicle is pushed to a testing position from the outside of the cabinet and is connected with an external power line and a signal line through the control box, so that a maintainer can operate in a remote place (in a distribution room), the maintainer does not need to operate on the front side of the switch cabinet, double guarantee of vision and hearing is provided in the electricity testing process, personal and equipment safety is ensured to the maximum extent, other special tools do not need to be replaced in operation, and the electricity testing and grounding functions are conveniently, reliably and conveniently realized in a short time.

According to the second aspect of the embodiment of the present disclosure, an electricity testing grounding vehicle is provided, which comprises a chassis vehicle, a grounding copper bar arranged on the chassis vehicle, a chassis vehicle component and a vehicle frame, wherein a grounding switch component, a primary moving contact, an electromagnetic testing bottle connected with the primary moving contact, a grounding switch opening and closing position observation window, a grounding switch opening and closing indicator, an alarm, an electrified display and a secondary navigation socket of the electricity testing grounding vehicle are arranged on the vehicle frame.

In one embodiment, the electricity testing grounding vehicle further comprises a grounding switch manual operation valve and a grounding switch manual operation valve position switch which are arranged on the vehicle frame.

In one embodiment, the grounding switch assembly includes a grounding switch, an operating motor for grounding switch power, a grounding switch position switch, and a grounding switch manual operating handle.

In one embodiment, the chassis assembly includes a chassis electric operating motor, a chassis position switch, a chassis manual operating interlock pulley, a chassis manual operating aperture, a chassis manual operating position switch, and a chassis manual operating handle.

According to a third aspect of embodiments of the present disclosure, there is provided an electroscopic grounding system of a switchgear, the system comprising:

the system comprises an electricity testing grounding vehicle, a control box electrically connected with the electricity testing grounding vehicle, and a secondary navigation plug for connecting the electricity testing grounding vehicle and the control box;

the electricity testing grounding vehicle comprises the electricity testing grounding vehicle.

In one embodiment, the control box is provided with an electric handcart grounding switch control module, a power indicator lamp, a power supply air switch and a control box secondary navigation socket.

In one embodiment, the electric handcart and ground knife control module comprises a handcart control module, a ground knife operation module, a handcart rolling-in button, a handcart rolling-out button, a ground knife closing button, a ground knife opening button and a reset button.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a flowchart of an electrical grounding verification method for a switch cabinet according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a viewing angle of an earth-testing vehicle according to an embodiment of the disclosure;

fig. 3 is a schematic structural diagram of another view angle of the earth-testing vehicle provided in the embodiment of the disclosure;

fig. 4 is a bottom view of an electricity testing grounding vehicle provided by the embodiment of the present disclosure;

fig. 5 is a front view of an earth-testing grounding vehicle provided by an embodiment of the present disclosure;

fig. 6 is a side view of a live grounding vehicle provided by an embodiment of the present disclosure;

fig. 7 is a schematic diagram of a control box in an electricity testing grounding system of a switch cabinet provided by an embodiment of the present disclosure;

fig. 8 is a schematic diagram of an electric handcart earthing switch control module on a control box in an electricity testing earthing system of a switch cabinet provided by the embodiment of the present disclosure;

figure 9 is a schematic diagram of a control box of an electroscopic grounding system of a switchgear of an embodiment of the present disclosure;

fig. 10 is a schematic circuit diagram of an electrical testing grounding system of a switchgear of an embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of devices and systems consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 1 is a flowchart of an electrical grounding method for a switch cabinet according to an embodiment of the present disclosure. As shown in fig. 1, the method includes:

step 101, determining whether an electric grounding switch on an electricity testing grounding vehicle is in a brake-off state or not and whether a manual operation valve of the grounding switch on the electricity testing grounding vehicle is in a closed state or not;

in the step, whether the electric grounding switch is in the opening state or not and whether the manual operation valve of the grounding switch is in the closing state or not can be confirmed through the grounding switch opening and closing position observation window and the grounding switch opening and closing indicator which are arranged on the electroscope.

102, if an electric grounding switch on the electricity testing grounding vehicle is in a brake-off state and a manual operation valve of the grounding switch on the electricity testing grounding vehicle is in a closed state, connecting a secondary navigation socket of the electricity testing grounding vehicle with a secondary navigation socket of the control box through a secondary navigation plug, and opening a power switch on the control box;

in the step, if an electric grounding switch on the electricity testing grounding vehicle is in a closing state, the chassis vehicle of the electricity testing grounding vehicle cannot be remotely operated to a working position; if the manual operation valve of the grounding switch on the electricity testing grounding vehicle is not closed, the control box can not be electrically operated.

103, detecting whether a power indicator lamp on the control box and a handcart ready lamp, a handcart test position lamp, a ground switch ready lamp and a ground switch separating position lamp of a ground switch operation module on the control box are all on;

104, if a power indicator lamp on the control box and a handcart ready lamp, a handcart test position lamp, a grounding switch ready lamp and a grounding switch separating position lamp of a grounding switch operation module on the control box are all lighted, determining that the preparation work of the electricity testing grounding vehicle is finished;

in this step, if it is determined that the preparation work of the earth-testing vehicle is completed, the electricity-testing and earth-connecting work can be performed.

Step 105, pressing a handcart shake-in button of a grounding knife operation module on a control box, shaking an electricity testing grounding vehicle into a working position, connecting a primary moving contact on the electricity testing grounding vehicle with a fixed contact of a switch cabinet to be tested, transmitting a power supply signal to a live display and an alarm through an electricity testing porcelain bottle connected with the primary moving contact, and starting electricity testing of the electricity testing grounding vehicle;

step 106, if the electrified state lamp of the electrified display is not on, the alarm is not on, and the handcart ready lamp, the handcart working position lamp, the grounding switch ready lamp and the grounding switch separating position lamp of the grounding switch operation module on the control box are all on, determining that the fixed contact of the switch cabinet to be tested is uncharged, and completing electricity testing of the electricity testing grounding vehicle;

in this step, if the static contact of the switch cabinet to be tested is electrified, the electrified state indicator lamp of the electrified display is turned on, the alarm gives a sound, the handcart ready lamp of the grounding switch operation module on the control box is not turned on, but the handcart working position lamp, the grounding switch ready lamp and the grounding switch disconnecting position lamp are all turned on, and at the moment, the grounding switch operation module on the control box cannot be switched on, and only the electricity testing grounding vehicle can be swung out to perform power failure operation of the switch cabinet.

And 107, pressing a ground cutter closing button of the ground cutter operation module on the control box, enabling a grounding switch on the electricity testing grounding vehicle to run to a closing state, and finishing the grounding work of the electricity testing grounding vehicle.

In this step, the ground switch on-off position observation window and the ground switch on-off indicator on the electricity grounding vehicle are examined through visual inspection to confirm that the electric grounding switch is in a switching-on state, and meanwhile, a handcart working position lamp, a ground switch ready lamp and a ground switch on-off position lamp of a ground switch operation module on the control box are turned on, and the handcart ready lamp is not turned on, so that the handcart can not be shaken out.

It should be noted that, in the embodiment of the present disclosure, the operation sequence of the disconnecting switch of the earth-detecting grounding vehicle and the shaking-out operation of the chassis vehicle is opposite, and details are not described herein again.

It should be further noted that the above embodiments of the present disclosure are all electrically operated, and are mainly completed by a control box, wherein position signals of a handcart test position lamp, a handcart working position lamp, a handcart ready lamp, a ground switch on position lamp, a ground switch off position lamp and a ground switch ready lamp of an electric handcart ground switch operating module on the control box are all provided by a chassis position switch, a ground switch position switch and an electroscopic porcelain bottle through secondary wires, and the position signals are all collected from a body. Each button on the control module operation nameplate is marked by characters. The electric operation has accurate signals and clear operation instructions.

In one embodiment, the handcart rolling-in button of the earthing switch operation module is pressed on the control box, the electricity testing grounding vehicle is rolled into a working position, a primary moving contact on the electricity testing grounding vehicle is connected with a fixed contact of a switch cabinet to be tested, an electricity testing porcelain bottle connected with the primary moving contact transmits a power supply signal to the electrified display and the alarm, and the electricity testing grounding vehicle starts to test electricity;

the handcart shake-in button of the grounding knife operation module is pressed down on the control box, the chassis vehicle operating mechanism on the electricity testing grounding vehicle shakes the electricity testing grounding vehicle into a working position, a primary moving contact on the electricity testing grounding vehicle is connected with a static contact of a switch cabinet to be tested, an electricity testing porcelain bottle connected with the primary moving contact transmits a power supply signal to the electrified display and the alarm, and the electricity testing grounding vehicle starts to test electricity.

In one embodiment, the pressing of the switch-on button of the earthing switch operating module on the control box causes the earthing switch on the electric earthing test vehicle to operate to a switch-on state, and the completion of the earthing operation of the electric earthing test vehicle comprises:

and a ground knife closing button of the ground knife operation module is pressed on the control box, a grounding switch operating mechanism on the electricity testing grounding vehicle operates a grounding switch on the electricity testing grounding vehicle to a closing state, and the grounding work of the electricity testing grounding vehicle is finished.

According to the electricity testing and grounding method of the switch cabinet in the embodiment of the disclosure, when the switch cabinet is overhauled and maintained, electric or manual operation can be adopted to test electricity and ground the main bus of the section. Specifically, the electricity testing grounding vehicle is pushed to a testing position from the outside of the cabinet and is connected with an external power line and a signal line through the control box, so that a maintainer can operate in a remote place (in a distribution room), the maintainer does not need to operate on the front side of the switch cabinet, double guarantee of vision and hearing is provided in the electricity testing process, personal and equipment safety is ensured to the maximum extent, other special tools do not need to be replaced in operation, and the electricity testing and grounding functions are conveniently, reliably and conveniently realized in a short time.

Fig. 2 and 3 are schematic structural diagrams of an electricity testing grounding vehicle provided by the embodiment of the disclosure. As shown in fig. 2 and 3, the electroscopic grounding vehicle 20 includes a chassis 201, a grounding copper bar 202 disposed on the chassis 201, a chassis assembly 203, and a frame 204, wherein the frame 204 is provided with a grounding switch assembly 205, a primary moving contact 206, an electromagnetic inspection bottle 207 connected to the primary moving contact 206, a grounding switch opening/closing position observation window 208, a grounding switch opening/closing indicator 209, an alarm 2010, an electrified display 2011, and a secondary aviation socket 2012 of the electroscopic grounding vehicle.

In one embodiment, as shown in fig. 2 and 3, the frame 204 is further provided with a product name plate 2013.

Fig. 4 is a bottom view of the electricity testing grounding vehicle provided by the embodiment of the disclosure. As shown in fig. 4, the chassis assembly 203 includes a chassis electric operation motor 2031, a chassis position switch 2032, a chassis manual operation interlocking pulley 2033, a chassis manual operation hole 2034, a chassis manual operation position switch 2035, and a chassis manual operation handle.

Fig. 5 is a front view of an electricity testing grounding vehicle provided by the embodiment of the present disclosure. As shown in fig. 5, the electricity testing grounding vehicle 20 further includes a grounding switch manual operation shutter 2014 and a grounding switch manual operation shutter position switch 2015, which are arranged on the frame 204.

Fig. 6 is a side view of an electroscopic grounding vehicle provided by an embodiment of the present disclosure. As shown in fig. 3 and 6, the ground switch assembly 205 includes a ground switch 2051, a ground switch electric-use operating motor 2052, a ground switch position switch 2053, and a ground switch manual operation handle.

It can be understood that the electricity testing grounding vehicle in the embodiment of the present disclosure may be operated manually if necessary, and the above steps are the same as the above steps in terms of position determination, and only after the manual operation condition is met, the electric operation cannot be performed, and meanwhile, each indicator light on the control module is not turned on. The manual operation tools are a grounding switch manual operation handle and a chassis manual operation handle, and the operation conditions are described in detail below.

Manual shake-in and shake-out operation: pressing chassis car manual operation interlocking pulley position switch, could insert chassis car manual operation handle in chassis car manual operation hole, touch chassis car manual operation position switch simultaneously, control module is unable to operate this moment, and the pilot lamp is not bright, and electric operation is inefficacy. The hand-operated handle of the chassis vehicle rotates clockwise, the chassis vehicle is remotely driven to a working position, and the chassis vehicle rotates anticlockwise to shake out to a testing position.

And (3) manual opening and closing operation: the manual operation valve of the grounding switch on the panel of the vehicle is pulled down, the manual operation handle of the grounding switch can be inserted into the grounding switch, and the position switch of the manual operation valve of the grounding switch is touched, so that the control module cannot operate, the indicator lamp is not on, and the electric operation fails. And switching on 180 degrees clockwise according to a nameplate indicating handle at the valve, and switching off 180 degrees anticlockwise. The manual operation of the grounding switch can only be carried out outside the cabinet or at a test position, and the handle cannot be inserted at a working position.

This electric grounding car is tested to disclosed embodiment, this car with above-mentioned three kinds of instruments and function integration an organic whole, possess following technical characterstic:

1) safety feature

1.1) the chassis vehicle and the grounding switch are electrically operated by a wired control box in a remote place (in a distribution room) outside the cabinet;

1.2) the grounding switch has an electricity testing function, and can not be switched on when electrified;

1.3) possess and prevent the maloperation function, chassis car can not the teleoperation to the test position or the teleoperation to the operating position when earthing switch closes the floodgate.

2) Operability of

2.1) the remote in/out of the electricity testing grounding vehicle and the on/off of the grounding switch can be operated electrically or manually, the electric operation is performed by a control module, the panel indication is clear, and the button operation is simple;

2.2) the manual remote-in/remote-out operation of the electricity testing grounding handcart is the same as the operation mode of the original grounding handcart;

2.3) the earthing switch can be manually operated at the test position in the cabinet and outside the cabinet.

3) Maintainability

3.1) the open-type handcart has simple whole structure, easy decomposition and easy maintenance.

4) Reliability of

4.1) a grounding switch which is the same as the switch cabinet is adopted, and the closing performance and the reliability of other parameters are guaranteed;

4.2) electric operation life test: 3000 times of electric chassis vehicle and 3000 times of electric grounding switch;

4.3) the electricity testing grounding vehicle inherits the original grounding handcart grounding bus plugging mode;

4.4) when electricity is available, sound and light alarms (an alarm and an electrified display);

4.5) visible ES fractures can be observed on the appearance of the cabinet through the observation window;

4.6) manual and electric operation can not be carried out simultaneously, so that the safety of operation is ensured;

4.7) reliable interlocking, ensuring the safety of operators.

According to a third aspect of embodiments of the present disclosure, there is provided an electroscopic grounding system of a switchgear, the system comprising:

the system comprises an electricity testing grounding vehicle, a control box electrically connected with the electricity testing grounding vehicle, and a secondary navigation plug for connecting the electricity testing grounding vehicle and the control box;

the electricity testing grounding vehicle comprises the electricity testing grounding vehicle.

Fig. 7 is a schematic diagram of a control box in an electricity testing grounding system of a switch cabinet provided by the embodiment of the disclosure. As shown in fig. 7, the control box 30 is provided with an electric handcart earthing switch control module 301, a power indicator lamp 302, a power supply air switch 303 and a control box secondary navigation socket 304.

Fig. 8 is a schematic diagram of an electric handcart earthing switch control module on a control box in an electricity testing earthing system of a switch cabinet provided by the embodiment of the disclosure. As shown in fig. 8, the electric handcart and ground knife control module 301 includes a handcart control module 3011, a ground knife operation module 3012, a handcart shake-in button 3013, a handcart shake-out button 3014, a ground knife closing button 3015, a ground knife opening button 3016, and a reset button.

Fig. 9 is a schematic diagram of a control box of an electricity testing grounding system of a switchgear of an embodiment of the present disclosure.

Fig. 10 is a schematic circuit diagram of an electrical testing grounding system of a switchgear of an embodiment of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.