CN207215894U - Electrical verification earth handcart - Google Patents
Electrical verification earth handcart Download PDFInfo
- Publication number
- CN207215894U CN207215894U CN201720693410.8U CN201720693410U CN207215894U CN 207215894 U CN207215894 U CN 207215894U CN 201720693410 U CN201720693410 U CN 201720693410U CN 207215894 U CN207215894 U CN 207215894U
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- Prior art keywords
- grounding
- electrical verification
- contact
- movable contact
- electric motors
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Abstract
A kind of electrical verification earth handcart is the utility model is related to, belongs to Electrical Testing equipment.The technical solution adopted in the utility model is:Electrical verification earth handcart, including can self-service moving chassis truck, it is additionally provided with three-phase moving contact moving up and down, three-phase moving contact is arranged on the front end of movable contact block, movable contact block rear portion is arranged on lowering or hoisting gear, lowering or hoisting gear is arranged on the vehicle frame of setting, is provided with below movable contact block with three-phase moving contact per the mutually conductive grounding static contact being connected；The lower section of grounding static contact is provided with the grounding switch swung, and grounding switch front end connects the external part of a linear electric motors, and linear electric motors rear end is articulated with vehicle frame, and linear electric motors stretch out end motion and drive grounding switch to be swung up with grounding static contact per the energization that is connected；Grounding switch is connected to ground path.
Description
Technical field
The present invention relates to a kind of electrical verification earth handcart, belong to Electrical Testing equipment.
Background technology
Metal armoured high-tension switch cabinet is widely used in current electric power enterprise, it is logical for being played in power system
Disconnected, control and the effect of protection.Two " incoming line switch cabinets " and several are generally had in Typical Design for Substations, in hyperbaric chamber
" outlet switch cabinet ", and " bus connection switch cabinet " etc. have the switch cubicle of other functions.
Switch cubicle manufacturer by the busbar in switch cubicle and " incoming line switch cabinet " and each " can go out typically in design
Static contact suitable for reading in the breaker chamber of wiretap cabinet " is electrically connected.Therefore, if 1. service work when, it is necessary to will switch
Bus in cabinet is grounded, it is necessary to special " earth handcart " that is provided using producer.If 2., it is necessary to will be single during service work
Outgoing line interval is grounded, the grounding switch that " line side " of each " outlet switch cabinet " can be used to install, by " line side "
Ground connection.3. but have no grounding switch in " incoming line switch cabinet ", it is therefore intended that prevent powered conjunction grounding switch by mistake, cause main transformer
The serious consequence of low-pressure side three-phase ground short circuit.This just brings a problem, i.e., can not be by " inlet wire is opened in service work
" enter line side " of pass cabinet " is individually grounded.
Exemplified by changing inlet wire wall bushing operation, the need of work is at job site both ends（Indoor and outdoor）Difference electrical verification,
Ground connection.Although outdoor section can be with normal use electroscope and ground wire, part indoors, due to " incoming line switch cabinet "
" enter line side " does not have grounding switch, and the incoming-line busbar in hyperbaric chamber is fully sealed by heat-shrinkable T bush and busbar crane span structure, therefore
Electrical verification, ground connection operation can only be carried out by mouth static contact under the breaker chamber of " incoming line switch cabinet ".So operation has three drawbacks：①
If without using specific purpose tool, directly operated with common electroscope, ground wire, then need breaker chamber is opened manually quiet
Contact isolation baffle plate.This operation is serious to violate《Power transformation safety》, serious threat operating personnel safety；Meanwhile common ground wire is not
It can be articulated in securely on static contact, it is grounded performance and can not be also protected." electricity-testing handcart " 2. of present manufacturer production and
" earth handcart " is two independent special handcarts., it is necessary to pull out " electricity-testing handcart " after electrical verification, then " earth handcart " is pushed into, led
Cause field operation step is more, wastes time and energy, and certain potential safety hazard is caused to maintainer.3. although present producer is special
Door produces " electricity-testing handcart " and " earth handcart ", but both special handcarts can only be all tested switch cubicle " bus bar side "
Electricity, ground connection operation.In other words, existing " electricity-testing handcart " and " earth handcart " push-in switch cubicle breaker chamber after,
Electrical verification, ground connection can only be all carried out to static contact suitable for reading.And " enter line side " of " incoming line switch cabinet " is in the lower mouth stationary contact of breaker chamber
Head, it is impossible to electrical verification is carried out to " enter line side " using existing " electricity-testing handcart " and " earth handcart ", ground connection operates.
The content of the invention
The present invention relates to a kind of electrical verification earth handcart and the method for carrying out high voltage testing, solves high-tension switch cabinet and was overhauling
The problem of contact point live detection in journey,
To achieve the above object, the technical solution adopted by the present invention is:
Electrical verification earth handcart, including can self-service moving chassis truck, be additionally provided with three-phase moving contact moving up and down, three-phase moves
Contact is arranged on the front end of movable contact block, and movable contact block rear portion is arranged on lowering or hoisting gear, and lowering or hoisting gear is arranged on setting
It is provided with vehicle frame, below movable contact block with three-phase moving contact per the mutually conductive grounding static contact being connected；Under grounding static contact
Side is provided with the grounding switch swung, and grounding switch front end connects the external part of a linear electric motors, and linear electric motors rear end is articulated with car
Frame, linear electric motors stretch out end motion and drive grounding switch to be swung up with grounding static contact per the energization that is connected；Grounding switch connects
It is connected to ground path.
Preferably, being additionally provided with high voltage testing device in the middle part of the movable contact block, high voltage testing device is dynamic tactile with three-phase
Head wire is connected, and it is conductive that insulator isolation is provided between the rear portion of movable contact block and lowering or hoisting gear.
Preferably, the lowering or hoisting gear is provided with screw-nut structure, pair of nut fixes the movable contact block rear portion, rotates
Leading screw realizes that the lifting of pair of nut drives the lifting of movable contact block.
Preferably, the chassis vehicle is provided with battery and controls the control circuit of chassis vehicle movement, battery is being controlled
The linear electric motors that base plate electric machine and driving earthing under the control of circuit processed for chassis vehicle explain motion provide electric energy, high voltage testing
Device Access Control circuit and input three-phase moving contact whether charged signal；
Also include remote control circuit and corresponding remote control equipment；
The remote audible-visual annunciator for including control circuit control.
Preferably, the rear portion of vehicle frame is provided with the movement of hand switch control moving chassis truck.
Using electrical verification earth handcart and the method for carrying out high voltage testing, comprise the following steps,
Step 1, regulation three-phase moving contact height, if the breaker chamber " static contact suitable for reading " of check valve cabinet whether band
It is electric then three-phase moving contact is moved to a high position by lowering or hoisting gear, if the breaker chamber " lower mouth static contact " of check valve cabinet is
It is no powered, three-phase moving contact is moved to low level by lowering or hoisting gear；
Step 2, starts mobile chassis stopping switch, and moving chassis truck is moved to the breaker chamber of switch cubicle to the examination of setting
Position is tested, the testing position is located at the breaker chamber of switch cubicle and do not contacted with any electric equipment, closing switch cabinet cabinet door, people
Member is withdrawn to home；
Step 3, control high voltage testing device carry out self-test, and control circuit has been not received by a signal, and sound and light alarm opens
It is dynamic, operator's high voltage testing plant failure is reminded, control circuit has received a signal, into next step；
Step 4, remote control driving chassis vehicle is forward to operating position, three-phase moving contact and phase in the breaker chamber of switch cubicle
The static contact contact answered, high voltage testing device judge whether equipment static contact carries voltage；If high voltage testing device judges to set
Standby static contact carries voltage, performs step 5, if high voltage testing device judges that equipment static contact without voltage, performs step
Six；
Step 5, high voltage testing device will determine that structural transmission reminds operation to control system, control system sound and light alarm
Personnel correspond to static contact and not powered off, and moving chassis truck retracts testing position automatically；
Step 6, operating personnel's remote control linear electric motors drive pendulum on grounding switch to contact conduction with grounding static contact,
Corresponding static contact is grounded.The advantage of the invention is that：1st, the three-phase moving contact of the automatic electricity-testing earth handcart can basis
Need of work, its upper-lower position is adjusted, made it possible to respectively to the breaker chamber " static contact suitable for reading " of switch cubicle（Bus bar side）Or
" lower mouth static contact "（Enter line side or line side）Carry out electrical verification, ground connection operation.2nd, the automatic electricity-testing earth handcart can certainly successively
It is dynamic to realize electrical verification, grounding function.Using remote operation, security during operation is improved.3rd, whole checkout procedure standardization, it is excellent
Change job step, improve the operating efficiency of detection.
Brief description of the drawings
Fig. 1 is the construction profile of the present invention,
Fig. 2 is the structure chart of the control circuit of the present invention,
Fig. 3 is the method flow diagram of the high voltage testing of the present invention,
Reference：1st, three-phase moving contact, 2, lowering or hoisting gear, 3, leading screw, 4, ground path, 5, linear electric motors, 6, ground connection
Disconnecting link, 7, moving chassis truck, 8, vehicle frame, 9, high voltage testing device, 10, control system, the insulator of 11 pair of nut 12,13, quiet
Grounding contact, 14, movable contact block,.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The method that present invention is electrical verification earth handcart and progress high voltage testing, electrical verification earth handcart, such as Fig. 1, including
Can self-service moving chassis truck, it is characterized in that, be additionally provided with three-phase moving contact moving up and down, three-phase moving contact is arranged at rear portion
On movable contact block, movable contact block rear portion is arranged on lowering or hoisting gear, and lowering or hoisting gear is arranged on the vehicle frame of setting, under movable contact block
Side is provided with and the conductive grounding static contact being connected of three-phase moving contact；The lower section of grounding static contact is provided with the grounding switch swung, connects
Ground disconnecting link leading portion connects the external part of a linear electric motors, and linear electric motors rear end is articulated with vehicle frame, and grounding switch is swung up and connect
Ground static contact, which is connected, to be powered；Grounding switch is connected to ground path.
High voltage testing device is additionally provided with the middle part of the movable contact block, is provided between the rear portion of movable contact block and lowering or hoisting gear exhausted
Edge isolation is conductive.The lowering or hoisting gear is provided with screw-nut structure, and pair of nut is fixed the movable contact block rear portion, rotated manually
Leading screw realizes that the lifting of pair of nut drives the lifting of movable contact block.Guide screw movement can also be driven adding driving motor, realized
Three-phase moving contact automatically controls lifting.
The chassis vehicle is provided with battery and controls the control circuit of chassis vehicle movement, control of the battery in control circuit
The linear electric motors that the lower base plate electric machine and driving earthing for chassis vehicle of system explains motion provide electric energy, the access control of high voltage testing device
Circuit processed and input three-phase moving contact whether charged signal；Also include remote control circuit and corresponding remote control equipment；Also include control
The audible-visual annunciator of circuit control.The rear portion of vehicle frame is provided with the movement of hand switch control moving chassis truck.
Chassis vehicle with remote control function is common equipment, can pass through this dress of existing chassis vehicle progress directly transplanting
Put the use of other devices.
Using electrical verification earth handcart and the method for carrying out high voltage testing, as shown in figure 3, comprise the following steps,
Step 1, staff are setting the position of three-phase moving contact in advance, high using manual regulation three-phase moving contact
Degree, whether the breaker chamber " static contact suitable for reading " of check valve cabinet is powered, three-phase moving contact is moved by jacking system paramount
Position, whether the breaker chamber " lower mouth static contact " of check valve cabinet is powered, three-phase moving contact is moved to by jacking system low
Position；
Step 2, to the testing position set, the testing position is located to be opened the breaker chamber of moving chassis truck to switch cubicle
Close the breaker chamber of cabinet and do not contacted with any electric equipment, closing switch cabinet cabinet door, personnel are withdrawn to home；
Step 3, control high voltage testing device carry out self-test, and control circuit has been not received by electric signal, and sound and light alarm opens
It is dynamic, operator's high voltage testing plant failure is reminded, reminds staff's device to be unable to normal use, if control circuit receives
There is electric signal to what high voltage testing device was sent, operated into next step；
Step 4, remote control driving chassis vehicle is forward to operating position, three-phase moving contact and phase in the breaker chamber of switch cubicle
The static contact contact answered, high voltage testing device judge whether equipment static contact carries voltage；If high voltage testing device judges to set
Standby static contact carries voltage, performs step 5, if high voltage testing device judges that equipment static contact without voltage, performs step
Six；
Step 5, high voltage testing device will determine that structural transmission reminds operation to control system, control system sound and light alarm
It is powered that personnel correspond to static contact, then shows that corresponding high-tension apparatus is powered, personnel can not operate, and moving chassis truck retracts experiment automatically
Position.
Step 6, operating personnel's remote control linear electric motors drive pendulum on grounding switch to contact conduction with grounding static contact,
Corresponding static contact is grounded.After staff completes work on the spot, grounding switch is unclamped using the remote control control present apparatus
With grounding static contact, testing position is withdrawn into, cabinet door then can be opened, pull out basic device, terminate operation.
Compared with prior art, it is of the invention to have a following characteristics, 1, the three-phase moving contact of the automatic electricity-testing earth handcart can
So that according to need of work, it is moved up and down manual adjustment, make it possible to respectively to the breaker chamber " static contact suitable for reading " of switch cubicle
（Bus bar side）Or " lower mouth static contact "（Enter line side or line side）Carry out electrical verification, ground connection operation.2nd, the automatic electricity-testing earth handcart
Electrical verification, grounding function successively can be realized automatically.The handcart is pushed into the breaker chamber of switch cubicle, after being placed in " testing position ",
High-voltage switch cabinet door is closed, then staff withdraws, and is remotely controlled device work.The control circuit of the device moves chassis
" operating position " is placed in, three-phase moving contact is engaged with corresponding static contact, then by high voltage testing device, judges that equipment is true
After no-voltage, driving electric grounding knife-switch lock automatic closing ground connection., whereas if identifying equipment live, then handcart chassis is automatic
Retract " testing position ", and sound and light alarm.Thus optimize job step, reduce the working time, while also ensured existing
The safety of field staff.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of electrical verification earth handcart, including can self-service moving chassis truck（7）, it is characterized in that, it is additionally provided with moving up and down three
Phase moving contact（1）, three-phase moving contact（1）It is arranged on movable contact block（14）Front end on, movable contact block（14）Rear portion is arranged on liter
Falling unit（2）On, lowering or hoisting gear（2）It is arranged on the vehicle frame of setting（8）On, movable contact block（14）Lower section is provided with and three-phase moving contact
（1）Per the grounding static contact that is mutually electrically connected；The lower section of grounding static contact is provided with the grounding switch swung（6）, grounding switch（6）
Front end connects a linear electric motors（5）External part, linear electric motors（5）Rear end is articulated with vehicle frame（8）, linear electric motors（5）External part
Motion drives grounding switch（6）It is swung up with grounding static contact per the energization that is mutually electrically connected；Grounding switch（6）It is connected to ground wire
Road（4）.
2. electrical verification earth handcart according to claim 1, it is characterized in that, the movable contact block（14）Middle part be additionally provided with height
Press electroscopic device（9）, high voltage testing device（9）With three-phase moving contact（1）Wire is connected, movable contact block（14）Rear portion and lifting
Device（2）Between be provided with insulator（12）Isolation is conductive.
3. electrical verification earth handcart according to claim 1, it is characterized in that, the lowering or hoisting gear（2）Provided with leading screw（3）Nut
Structure, pair of nut（11）The fixed movable contact block（14）Rear portion, rotational lead screw（3）Realize pair of nut（11）Lifting drive it is dynamic
Contact base（14）Lifting.
4. electrical verification earth handcart according to claim 2, it is characterized in that, the chassis vehicle is provided with battery and control bottom
The control circuit of jiggering movement, base plate electric machine and driving earthing of the battery under the control of control circuit for chassis vehicle explain fortune
Dynamic linear electric motors（5）Electric energy, high voltage testing device are provided（9）Access Control circuit simultaneously inputs three-phase moving contact（1）Whether band
Electric signal；
Also include remote control circuit and corresponding remote control equipment；
The remote audible-visual annunciator for including control circuit control.
5. electrical verification earth handcart according to claim 1, it is characterized in that, the rear portion of vehicle frame is provided with hand switch control movement
The movement of chassis vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720693410.8U CN207215894U (en) | 2017-06-15 | 2017-06-15 | Electrical verification earth handcart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720693410.8U CN207215894U (en) | 2017-06-15 | 2017-06-15 | Electrical verification earth handcart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207215894U true CN207215894U (en) | 2018-04-10 |
Family
ID=61811575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720693410.8U Expired - Fee Related CN207215894U (en) | 2017-06-15 | 2017-06-15 | Electrical verification earth handcart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207215894U (en) |
Cited By (2)
| 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 |
| CN116722470A (en) * | 2023-08-09 | 2023-09-08 | 天津滨电电力工程有限公司 | Grounding handcart with adjustable grounding position of high-voltage switch cabinet |
-
2017
- 2017-06-15 CN CN201720693410.8U patent/CN207215894U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN116722470A (en) * | 2023-08-09 | 2023-09-08 | 天津滨电电力工程有限公司 | Grounding handcart with adjustable grounding position of high-voltage switch cabinet |
| CN116722470B (en) * | 2023-08-09 | 2023-10-20 | 天津滨电电力工程有限公司 | Grounding handcart with adjustable grounding position of high-voltage switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |