CN107153134A - Electrical verification earth handcart and method of work - Google Patents
Electrical verification earth handcart and method of work Download PDFInfo
- Publication number
- CN107153134A CN107153134A CN201710450195.3A CN201710450195A CN107153134A CN 107153134 A CN107153134 A CN 107153134A CN 201710450195 A CN201710450195 A CN 201710450195A CN 107153134 A CN107153134 A CN 107153134A
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- grounding
- switch
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- 238000012795 verification Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 55
- 230000003068 static effect Effects 0.000 claims abstract description 46
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 238000007689 inspection Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/155—Indicating the presence of voltage
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to a kind of electrical verification earth handcart and the method for work, belong to Electrical Testing equipment.The technical solution adopted by the present invention 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 and the method for work, belong to Electrical Testing equipment.
Background technology
Metal armoured high-tension switch cabinet is widely used in current electric power enterprise, for playing logical in power system
Disconnected, control and the effect of protection.In Typical Design for Substations, generally two " incoming line switch cabinets " and several are had in hyperbaric chamber
" outlet switch cabinet ", and " bus connection switch cabinet " etc. have the switch cubicle of other functions.
Switch cubicle manufacturer is general in design, can by the busbar in switch cubicle and " incoming line switch cabinet " and each " go out
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 grounding switch is had no 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., in service work, it is impossible to by " inlet wire is opened
" entering line side " of pass cabinet " is individually grounded.
Exemplified by changing inlet wire wall bushing operation, the need of work is at job site two ends（Indoor and outdoor）Difference electrical verification,
Ground connection.Although outdoor section can normally use electroscope and ground wire, indoors part, due to " incoming line switch cabinet "
" entering line side " is without 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》, it is serious to threaten operating personnel's 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.2. " electricity-testing handcart " 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 it is pushed into " earth handcart ", leads
Cause that field operation step is more, waste time and energy, and cause certain potential safety hazard to maintainer.Although 3. present producer is specially
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 " the entering line side " of " incoming line switch cabinet " is in the lower mouth stationary contact of breaker chamber
Head, it is impossible to electrical verification, ground connection are carried out to " entering line side " using existing " electricity-testing handcart " and " earth handcart " and is operated.
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, solve high-tension switch cabinet and 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 moving contact
It 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
On, it is provided with below movable contact block with three-phase moving contact per the mutually conductive grounding static contact being connected；Set below grounding static contact
There is the grounding switch of swing, grounding switch front end connects the external part of a linear electric motors, and linear electric motors rear end is articulated with vehicle frame, directly
Line motor stretches out end motion and drives grounding switch to be swung up with grounding static contact per the energization that is connected；Grounding switch, which is connected to, to be connect
Ground circuit.
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 completely cuts off conductive provided with insulator 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, control circuit of the chassis vehicle provided with battery and control chassis vehicle movement, battery is in control
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；
It is remote to include the audible-visual annunciator of control circuit control.
Preferably, the rear portion of vehicle frame controls the movement of moving chassis truck provided with hand switch.
Using electrical verification earth handcart and the method for carrying out high voltage testing, comprise the following steps,
Step one, regulation three-phase moving contact height, if whether the breaker chamber " static contact suitable for reading " of check valve cabinet is powered
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 whether band
It is electric then 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 experiment position of setting
Put, the testing position is located at the breaker chamber of switch cubicle and do not contacted with any electric equipment, and closing switch cabinet cabinet door, personnel remove
From to home；
Step 3, control high voltage testing device carries out self-inspection, and control circuit has been not received by a signal, and sound and light alarm starts,
Operator's high voltage testing plant failure is reminded, control circuit has received a signal, into next step；
Step 4, remote control drives chassis vehicle forward to operating position, and three-phase moving contact is corresponding with the breaker chamber of switch cubicle
Static contact is contacted, and high voltage testing device judges whether equipment static contact carries voltage；If high voltage testing device judges that equipment is quiet
Contact carries voltage, performs step 5, if high voltage testing device judges that equipment static contact, without voltage, performs step 6；
Step 5, high voltage testing device will determine that structural transmission to control system, and control system sound and light alarm reminds operating personnel
Correspondence static contact is 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, correspondence
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 be according to work
Need, adjust its upper-lower position, make it possible to the breaker chamber " static contact suitable for reading " respectively to 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 be realized successively automatically
Electrical verification, grounding function.Using remote operation, security during operation is improved.3rd, whole checkout procedure standardization, optimizes work
Make 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, earthing
Lock, 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 connect
Ground 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 is described.Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs 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 the grounding static contact being connected with three-phase moving contact conduction；The lower section of grounding static contact connects provided with the grounding switch swung
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, provided with exhausted between the rear portion of movable contact block and lowering or hoisting gear
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.
Control circuit of the chassis vehicle provided with battery and control 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 controls the movement of moving chassis truck provided with hand switch.
Chassis vehicle with remote control function is common equipment, can pass through this dress of existing chassis vehicle progress directly transplanting
Other devices are put to use.
Using electrical verification earth handcart and the method for carrying out high voltage testing, as shown in figure 3, comprise the following steps,
Step one, staff is setting the position of three-phase moving contact in advance, using manual regulation three-phase moving contact height, inspection
Whether the breaker chamber " static contact suitable for reading " for testing switch cubicle is powered, and three-phase moving contact is moved into a high position by jacking system, inspection
Whether the breaker chamber " lower mouth static contact " for testing switch cubicle is powered, and three-phase moving contact is moved into low level by jacking system；
Step 2, the breaker chamber of moving chassis truck to switch cubicle is to the testing position set, and the testing position is located at switch cubicle
Breaker chamber 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 carries out self-inspection, and control circuit has been not received by electric signal, and sound and light alarm starts,
Operator's high voltage testing plant failure is reminded, reminds staff's device normally to use, if control circuit is received
What high voltage testing device was sent has electric signal, into next step operation；
Step 4, remote control drives chassis vehicle forward to operating position, and three-phase moving contact is corresponding with the breaker chamber of switch cubicle
Static contact is contacted, and high voltage testing device judges whether equipment static contact carries voltage；If high voltage testing device judges that equipment is quiet
Contact carries voltage, performs step 5, if high voltage testing device judges that equipment static contact, without voltage, performs step 6；
Step 5, high voltage testing device will determine that structural transmission to control system, and control system sound and light alarm reminds operating personnel
Correspondence static contact is powered, then shows that corresponding high-tension apparatus is powered, personnel can not operate, and moving chassis truck retracts experiment position automatically
Put.
Step 6, operating personnel's remote control linear electric motors drive pendulum on grounding switch to contact conduction with grounding static contact,
Correspondence 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, the breaker chamber " static contact suitable for reading " respectively to switch cubicle is made it possible to
（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, is placed in after " testing position ",
High-voltage switch cabinet door is closed, then staff withdraws, remote control 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 having 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 is required rather than described above is limited, 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 claim involved by 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 for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (6)
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 explains 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；
It is remote to include the audible-visual annunciator of control circuit control.
5. electrical verification earth handcart according to claim 1, it is characterized in that, the rear portion of vehicle frame controls movement provided with hand switch
The movement of chassis vehicle.
6. a kind of method of work of the electrical verification earth handcart described in claim 1, it is characterized in that, comprise the following steps,
Step one, regulation three-phase moving contact height, if whether the breaker chamber " static contact suitable for reading " of check valve cabinet is powered
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 whether band
It is electric then 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 experiment position of setting
Put, the testing position is located at the breaker chamber of switch cubicle and do not contacted with any electric equipment, and closing switch cabinet cabinet door, personnel remove
From to home；
Step 3, control high voltage testing device carries out self-inspection, and control circuit has been not received by a signal, and sound and light alarm starts,
Operator's high voltage testing plant failure is reminded, control circuit has received a signal, into next step；
Step 4, remote control drives chassis vehicle forward to operating position, and three-phase moving contact is corresponding with the breaker chamber of switch cubicle
Static contact is contacted, and high voltage testing device judges whether equipment static contact carries voltage；If high voltage testing device judges that equipment is quiet
Contact carries voltage, performs step 5, if high voltage testing device judges that equipment static contact, without voltage, performs step 6；
Step 5, high voltage testing device will determine that structural transmission to control system, and control system sound and light alarm reminds operating personnel
Correspondence static contact is 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, correspondence
Static contact is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450195.3A CN107153134A (en) | 2017-06-15 | 2017-06-15 | Electrical verification earth handcart and method of work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450195.3A CN107153134A (en) | 2017-06-15 | 2017-06-15 | Electrical verification earth handcart and method of work |
Publications (1)
| Publication Number | Publication Date |
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| CN107153134A true CN107153134A (en) | 2017-09-12 |
Family
ID=59796548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710450195.3A Pending CN107153134A (en) | 2017-06-15 | 2017-06-15 | Electrical verification earth handcart and method of work |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183414A (en) * | 2017-11-30 | 2018-06-19 | 国家电网公司 | The integrated Special grounding trolley of armouring central high-voltage switch cabinet electrical verification ground connection and its application method |
| CN109004569A (en) * | 2018-08-13 | 2018-12-14 | 国网河南省电力公司南阳供电公司 | A kind of totally-enclosed switch cabinet bus grounding device and application method |
| CN112730954A (en) * | 2020-12-22 | 2021-04-30 | 西安西拓电气股份有限公司 | Electricity testing grounding method and system of switch cabinet and electricity testing grounding vehicle |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109004569A (en) * | 2018-08-13 | 2018-12-14 | 国网河南省电力公司南阳供电公司 | A kind of totally-enclosed switch cabinet bus grounding device and application method |
| CN112730954A (en) * | 2020-12-22 | 2021-04-30 | 西安西拓电气股份有限公司 | Electricity testing grounding method and system of switch cabinet and electricity testing grounding vehicle |
| CN112730954B (en) * | 2020-12-22 | 2024-03-12 | 西安西拓电气股份有限公司 | Electricity testing grounding method and system of switch cabinet and electricity testing grounding vehicle |
| 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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