A kind of totally-enclosed switch cabinet bus grounding device and application method
Technical field
The present invention relates to electric power overhaul technical fields, more particularly, to a kind of totally-enclosed switch cabinet bus grounding device and make
Use method.
Background technique
The model of totally-enclosed switchgear is more, producer is more, most importantly quantity is more, is master important in current electric system
One of equipment.Totally-enclosed switchgear is made of breaker chamber, bus-bar room, cable vault, control room, this four rooms of switchgear are phases
It is mutually independent and each self-enclosed, it is not connected.Power equipment needs to be temporarily disengaged from from electric system in maintenance and must can
By ground connection, but since design reasons are when the bus of totally-enclosed switchgear needs repairing, none is specific, suitable on bus
, reliable grounding point, this technical problem seriously affects people of the operating personnel in totally-enclosed switch cabinet bus maintenance process
Body safety.
The document of 105449571 A of Publication No. CN discloses a kind of switch cabinet bus grounding device, including with universal
The pedestal of wheel, the bracket being set on the base, pedestal upper end are equipped with cross-arm, and the fixture of position-adjustable, card are provided on cross-arm
Ground connection inserting tube is fixed on cross-arm by tool, and ground connection inserting tube is insulating bar, and ground connection inserting tube front end is provided with probe, and ground wire is by ground connection
It is connected inside inserting tube with probe, although the document is horizontal according to the setting of the position of different model switchgear three-phase static contact when in use
The handcart room of the pedestal push-in switchgear of belt supporting frame is opened valve by the position of load and the fixture position of dead earth inserting tube,
After electrical verification determines no-voltage, without removing the pedestal of belt supporting frame, quickly ground connection inserting tube is mounted on cross-arm, quincunx touching
Head is reliably connected with static contact, guarantees the reliability of ground connection, but switch cabinet bus grounding device nothing in totally-enclosed switchgear
Method is applicable in.
Notification number provides a kind of universal bus grounding device of switchgear for the document of 104466457 B of CN, comprising: one
A chuck mechanism, the chuck mechanism are equipped with ground wire exit for the static contact in clamping switch cabinet, chuck mechanism;One
Operation set linkage tells that operation set linkage is allowed to clamp the static contact, operation set for connecting and operating chuck mechanism
Opposite clamping stagnation is fixed and is convenient for the connection structure of axial separation when being equipped with rotation between linkage and chuck mechanism.Chuck mechanism packet
A connector is included, the rear end circumferential surface of connector is equipped with circumferential damping structure, for covering the damping sleeve in linkage with operation
It matches, on the rear end circumferential surface of the connector and front end of damping sleeve is respectively equipped in the damping outer-hexagonal head and damping use of cooperation
Turret head.Although the present apparatus facilitates engineering staff when overhauling by switch cabinet bus grounding, easy to operate, safety is good, and saves
Working hour, but the device is inconvenient for operation in use process in totally-enclosed switchgear, needs to be further increased.
Summary of the invention
In view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of totally-enclosed switch cabinet bus to connect
Ground device and application method provide specific, suitable, reliable grounding point for busbar grounding, efficiently solve operation people
Personal safety of the member in totally-enclosed switch cabinet bus maintenance process.
In order to achieve the above objectives, the invention adopts the following technical scheme:
A kind of totally-enclosed switch cabinet bus grounding device, including operating platform mechanism, the operating platform mechanism top are equipped with bottom
Jiggering is fixedly connected with the panel vertical with the chassis vehicle on the chassis vehicle, is fixedly connected with level side on the panel
To three support insulators, be fixedly connected to a conduction on each support insulator of three support insulators
Arm and a moving contact positioned at the conductive arm front end, three conductive arms three-phase, which is shorted after copper bar connects, passes through first
Grounding copper bar is connected with the chassis vehicle, three corresponding companies of contact of upper static contact of three moving contacts and inside switch cabinet
It connects, it is corresponding with three upper static contacts that A phase bus, B phase bus and the C phase bus of bus-bar room pass through branch's downlead respectively
It connects.
Further, the side of the chassis vehicle is provided with handle, and the bottom of the chassis vehicle is provided with idler wheel.
Further, the chassis vehicle is connected by the second grounding copper bar in switchgear with the earth.
Further, the operating platform mechanism includes height-adjustable upper mounting plate, fixed lower platform, screw rod
With round plastic runner.
Further, the upper mounting plate and the lower platform shape are square, the bottom at four angles of upper mounting plate
It is equipped with thread bush, the top at four angles of lower platform is equipped with lower thread bush, and the screw rod turns through the round plastic
It takes turns and is cooperatively connected respectively with the upper thread bush, the lower thread bush.
Further, the screw rod number is 4, and the screw rod includes upper screw rod and lower screw rod, the upper screw rod and institute
Lower screw flight shape is stated on the contrary, the upper screw rod is correspondingly connected with upper thread bush, the lower screw rod and the lower thread bush
It is correspondingly connected with.
A kind of application method of totally-enclosed switch cabinet bus grounding device, comprising the following steps:
Step 1: when bus interruption maintenance, the breaker in the totally-enclosed switchgear of one side any on bus is flat by operation
Platform mechanism is released from totally-enclosed switchgear, then, totally-enclosed switch cabinet bus grounding device is pushed into the full envelope of identical faces
It closes in the breaker chamber of switchgear, so as to complete the reliable ground of switch cabinet bus;
Step 2: after busbar overhaul work, above-mentioned totally-enclosed switch cabinet bus grounding device from totally-enclosed switchgear
Middle release recycles operating platform mechanism breaker to be pushed into the situ in the breaker chamber of totally-enclosed switchgear, from
And complete the dismounting of switch cabinet bus grounding.
The beneficial effects of the present invention are:
1, the present invention provides a kind of totally-enclosed switch cabinet bus grounding device, and when bus needs to overhaul, just the device is placed on
In operating platform mechanism, the breaker chamber of device level push-in switchgear is then made into the full envelope by operating platform mechanism
Three horizontal conductive arms of switch cabinet bus grounding device are closed by being located at three moving contacts and inside switch cabinet of its front end
Three upper static contacts are in contact, and such bus is in contact by branch's downlead with three upper static contacts of inside switch cabinet, and
These three upper static contacts again on chassis vehicle three horizontal conductive arms and moving contact be in contact respectively after connect by grounding copper bar
Ground, efficiently solve the problems, such as switch cabinet bus maintenance when can not reliable ground, operating personnel has been effectively ensured in totally-enclosed switch
Personal safety during cabinet busbar overhaul has good popularization and application foreground.
2, the present invention provides a kind of totally-enclosed switch cabinet bus grounding device, and the operating platform mechanism includes that height is adjustable
Upper mounting plate, fixed lower platform, operating platform mechanism pass through rotation round plastic driven by rotating wheel spiral shell connected to it
The opposite upper screw rod of line shape and lower screw rod move up and down in upper thread bush and lower thread bush respectively, and operating platform can be completed
Mechanism moves up and down, and then reaches the height and position of the bus grounding device in adjustment operating platform mechanism, realizes that height can
It adjusts, easy to operate, using flexible, working efficiency is higher.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the top view of operation of the present invention platform mechanism;
Fig. 3 is the main view of operation of the present invention platform mechanism.
In figure: 1, operating platform mechanism, 2, chassis vehicle, 3, panel, 4, support insulator, 5, conductive arm, 6, moving contact, 7,
Three-phase be shorted copper bar, the 8, first grounding copper bar, 9, upper static contact, 10, A phase bus, 11, B phase bus, 12, C phase bus, 13, point
Branch downlead, 14, handle, 15, idler wheel, 16, upper mounting plate, 17, lower platform, 18, upper thread bush, 19, round plastic runner, 20,
Lower thread bush, 21, upper screw rod, 22, lower screw rod.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
Personnel's every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment
As shown in Figure 1, a kind of totally-enclosed switch cabinet bus grounding device, including operating platform mechanism 1, the operating platform
It is equipped with chassis vehicle 2 above mechanism 1, is fixedly connected with the panel 3 vertical with the chassis vehicle, the panel 3 on the chassis vehicle 2
On be fixedly connected with three support insulators 4 of horizontal direction, three support insulators 4 on direction perpendicular to the panel 3,
Three support insulators 4 are distributed side by side on panel 3, solid on each support insulator of three support insulators 4
Surely it is connected with a conductive arm 5 and a moving contact 6 positioned at 5 front end of conductive arm, the number of the conductive arm 5 is 3,
The number of the moving contact 6 is 3.3 conductive arms 5 three-phase be shorted after copper bar 7 connects by the first grounding copper bar 8 with
The chassis vehicle 2 is connected.
Three moving contacts 6 are corresponding with three upper static contacts 9 of inside switch cabinet to be connected, three moving contacts and three
A static contact connects one to one, and A phase bus 10, B phase bus 11 and the C phase bus 12 of bus-bar room pass through branch's downlead respectively
13 contact connectios corresponding with three upper static contacts 9.
The chassis vehicle 2 is connected by the second grounding copper bar (not shown) in switchgear with the earth.
The side of the chassis vehicle 2 is provided with handle 14, and the bottom of the chassis vehicle 2 is provided with idler wheel 15, idler wheel 15
Number is 4.Handle 14 can pull the chassis vehicle 2 to be convenient for being moved easily for chassis vehicle 2 in the position of operating platform mechanism 1
Busbar overhaul provides convenient.
Bus passes through the bus-bar room of every face switchgear, the upper moving contact of three of the breaker top in the switchgear of every face
It is in contact with three upper static contacts of inside switch cabinet and passes through branch's downlead and be connected with the indoor main bus-bar of respective bus,
When bus needs to overhaul, with regard to making to seal entirely in the breaker chamber of totally-enclosed switch cabinet bus grounding device level push-in switchgear
Three horizontal conductive arms of switch cabinet bus grounding device are closed by being located at three moving contacts and inside switch cabinet of its front end
Three upper static contacts are in contact, A phase bus 10, B phase bus 11 and the C phase bus 12 of such bus-bar room by branch's downlead with
Three upper static contacts 9 of inside switch cabinet are in contact, and these three upper static contacts 9 and three horizontal conductive arms on chassis vehicle
5 and moving contact 6 be in contact respectively after be grounded by the first grounding copper bar 8, can not can when efficiently solving switch cabinet bus maintenance
By problem with grounding.
As Figure 2-3, the operating platform mechanism 1 includes height-adjustable upper mounting plate 16, fixed lower platform
17, screw rod and round plastic runner 19,17 bottom of lower platform are equipped with movable pulley,
The upper mounting plate 16 and 17 shape of the lower platform are square, and the bottom at 16 4 angles of upper mounting plate is equipped with
Thread bush 18, the top at 17 4 angles of lower platform are equipped with lower thread bush 20, and the screw rod runs through the round plastic runner
It 19 and is cooperatively connected respectively with the upper thread bush, the lower thread bush.Wherein: the number of round plastic runner 19 is four,
Upper thread bush, lower thread bush number be 4,
The screw rod number is 4, and the screw rod includes upper screw rod 21 and lower screw rod 22, the upper screw rod 21 and the lower screw rod
22 thread shape is on the contrary, the upper screw rod 21 is correspondingly connected with upper thread bush 18, the lower screw rod 22 and the lower thread bush
20 are correspondingly connected with.The number of upper screw rod 21 and lower screw rod 22 is 4.
The application method of the totally-enclosed switch cabinet bus grounding device of one of present invention, comprising the following steps:
Step 1: when bus interruption maintenance, the breaker in the totally-enclosed switchgear of one side any on bus is flat by operation
Platform mechanism is released from totally-enclosed switchgear, then, totally-enclosed switch cabinet bus grounding device is pushed into the full envelope of identical faces
It closes in the breaker chamber of switchgear, so as to complete the reliable ground of switch cabinet bus;
Step 2: after busbar overhaul work, above-mentioned totally-enclosed switch cabinet bus grounding device from totally-enclosed switchgear
Middle release recycles operating platform mechanism breaker to be pushed into the situ in the breaker chamber of totally-enclosed switchgear, from
And complete the dismounting of switch cabinet bus grounding.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.