CN105655908A - Electrical coming-out method of multifunctional proofing and grounding handcart for centrally installed switchgear - Google Patents
Electrical coming-out method of multifunctional proofing and grounding handcart for centrally installed switchgear Download PDFInfo
- Publication number
- CN105655908A CN105655908A CN201610095689.XA CN201610095689A CN105655908A CN 105655908 A CN105655908 A CN 105655908A CN 201610095689 A CN201610095689 A CN 201610095689A CN 105655908 A CN105655908 A CN 105655908A
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- CN
- China
- Prior art keywords
- catalyst
- handcart
- motor
- switch
- travel switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
- H02B11/10—Indicating electrical condition of gear; Arrangement of test sockets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/28—Earthing arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an electrical coming-out method of a multifunctional proofing and grounding handcart for a centrally installed switchgear. The method comprises the following steps: setting a grounding switch in an opening position, connecting a travel switch S1 to set a handcart in a working position, connecting a travel switch S8, pressing down a button SB4 coming-out button to electrify the coil of a contactor KM4, connecting the main contact of the contactor, and switching with the power supply of a motor in coming-in to electrify the motor M2; and starting to rock the handcart out of the switchgear, releasing SB4, self-keeping the contactor by virtue of the auxiliary contact of the KM4, disconnecting the travel switch S8 when the handcart reaches the test position, dropping out the coil of the contactor KM4, disconnecting the main contact, and stopping work of the motor M2 to complete the coming-out operation. The method is convenient and safe to operate.
Description
The application is application number: 201410341290.6, the applying date: 2014.07.18, the title operational approach of grounding trolley " the middle-placed switch cabinet multifunctional electricity-detection, " divisional application.
Technical field
The present invention relates to the operational approach of a kind of middle-placed switch cabinet multifunctional electricity-detection, grounding trolley.
Background technology
In recent years, metal enclosed air insulation switch cubicle achieves extensive use in transformer station and other industrial user transformer station of power system 550kV, 220kV and following electric pressure, due to technological progress with when ensureing that user is easy to use, safe, the switchgear of handcart-type also just arises at the historic moment. Wherein, in order to overhaul convenient and safety, earth handcart is one of requisite handcart equipment. Its objective is to ensure to prevent misdelivery electricity or switchgear misoperation from bringing electric shock accidents during overhauling. Earth handcart extensively general at present is by simple three contact arms and a ground strap, and the Flos Mume fingertip for being connected with grounding static contact in cabinet collectively constitutes.
The shortcoming of existing product is only when in the certain uncharged situation of inlet wire bus, handcart push be only safe and reliable, do not have, to whether bus is charged, there is detection function, if pushing handcart in charged situation, handcart does not have mechanical or electronic interlock to be pushed further into restrict it, namely once handcart pushes, instant earthing short circuit accident will be there is. In charged situation, push earth handcart will produce very big short-circuit electromotive force. In this case, very big electronic thrust is likely to handcart to scold out, and at this moment electrodynamic repulsion force is likely to force earth handcart to be return and weigh wounded or wound maintainer. And, in the moment that earth handcart is scolded out by electric power, the spatial joint clearance between Mume flower contact and high pressure static contact on handcart is breakdown and arcing. Most likely result in electric arc burn staff or starting arc fire incident.
Visible, in charged situation, push earth handcart and cause that personal injury and property loss are inevitable security incidents.
Summary of the invention
It is an object of the invention to provide a kind of control circuit that can be effectively ensured the middle-placed switch cabinet multifunctional electricity-detection of handcart operation safety, grounding trolley.
The technical solution of the present invention is:
A kind of middle-placed switch cabinet multifunctional electricity-detection, grounding trolley operational approach, it is characterized in that: handcart electronic enter cabinet, offer for sale by turnover cabinet control circuit control, the electrical verification ground connection of handcart, the electronic separating brake of earthed switch have electrical verification grounded circuit to control, described turnover cabinet control circuit includes the motor M2 driving moving of car, the supply line of motor M2 arranges control motor M2 work, catalyst KM3 in parallel, the main contact of catalyst KM4, supply line is connected to switch S1, switch S1 and one Parallel Control circuit connects, the parallel-connection structure of one auxiliary contact of the route routing button SB3 in this Parallel Control circuit and catalyst KM3 and a contact of catalyst KM4, catalyst KM3, switch S9 is composed in series, the parallel-connection structure of one auxiliary contact of another route routing button SB4 in this Parallel Control circuit and catalyst KM4 and a contact of catalyst KM3, catalyst KM4, switch S8 is composed in series, described electrical verification grounded circuit includes motor M1, the supply line of motor M1 arranges control motor M2 work, catalyst KM1 in parallel, the main contact of catalyst KM2, supply line is connected to auxiliary contact HN, the one of auxiliary contact HN is terminated with the shunting means of switch S8 and switch S9, the other end of auxiliary contact HN and a Parallel Control circuit connect, the parallel-connection structure of one auxiliary contact of the route routing button SB1 in this Parallel Control circuit and catalyst KM1 and a contact of catalyst KM2, catalyst KM1, switch S1 is composed in series, the parallel-connection structure of one auxiliary contact of another route routing button SB2 in this Parallel Control circuit and catalyst KM2 and a contact of catalyst KM1, catalyst KM2, switch S2 is composed in series,
Handcart electronic enter cabinet:
Earthed switch is in open position, and switch S1 connects, and handcart is in testing position, switch S9 connects, and presses the button SB3 and enters cabinet button, and catalyst KM3 coil obtains electric, main noddle on contactor is connected, and motor M2 obtains electric, handcart start to shake in cabinet into, now release button SB3, catalyst passes through KM3 auxiliary contact self-sustaining, and when handcart arrives operating position, switch S9 disconnects, catalyst KM3 coil losing electricity, main contact disconnects, and motor M2 quits work, and enters cabinet operation and terminates;
Handcart is electronic to offer for sale:
Earthed switch is in open position, and switch S1 connects, and handcart is in operating position, switch S8 connects, and presses the button SB4 and offers for sale button, and catalyst KM4 coil obtains electric, main noddle on contactor is connected, and commutates with motor power when entering cabinet, and motor M2 obtains electric, handcart starts to shake out outside cabinet, now unclamps SB4, and catalyst passes through KM4 auxiliary contact self-sustaining, when handcart arrives testing position, switch S8 disconnects, catalyst KM4 coil losing electricity, and main contact disconnects, motor M2 quits work, and operation of offeing for sale terminates.
Electrical verification ground connection operates:
When handcart is in operating position, switch S9 connects, when handcart is in testing position, switch S8 connects, primary circuit feeds back to electrification display according to high pressure sensor, primary circuit is not charged, auxiliary contact HN closes, earthed switch is in gate-dividing state, switch S1 connects, press the button SB1 switch knob, catalyst KM1 coil obtains electric, main noddle on contactor is connected, motor M1 obtains electric, earthed switch starts to close a floodgate, now unclamp SB1, catalyst passes through KM1 auxiliary contact self-sustaining, earthed switch closes a floodgate and switchs S1 disconnection when putting in place, catalyst KM1 coil losing electricity, main contact disconnects, motor M1 quits work, the operation of electrical verification ground connection terminates,
The electronic separating brake of earthed switch:
Handcart is in operating position S9 and connects, when handcart is in testing position, switch S8 connects, primary circuit is not charged, auxiliary contact HN contacting, earthed switch is in "on" position, switch S2 connects, press the button SB2 switch knob, catalyst KM2 coil obtains electric, main noddle on contactor is connected, motor M1 obtains electric, earthed switch starts to close a floodgate, now release button SB2, catalyst passes through KM2 auxiliary contact self-sustaining, switch S2 when grounding switch tripping puts in place to disconnect, catalyst KM2 coil losing electricity, main contact disconnects, motor M1 quits work, grounding switch tripping operation terminates.
The present invention is easy to operate, safety. Earth handcart works reliably, not only can bring safety to maintainer, it is also possible to effectively reduce the probability of power failure outside the plan, provide the user higher power supply reliability, to the economic interests that client brings indirectly, thus improve society's public credibility and degree of recognition for Operation of Electric Systems.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the turnover cabinet control circuit figure of the present invention.
Fig. 2 is the electrical verification grounded circuit figure of the present invention.
Detailed description of the invention
A kind of middle-placed switch cabinet multifunctional electricity-detection, grounding trolley operational approach, handcart electronic enter cabinet, offer for sale by turnover cabinet control circuit control, the electrical verification ground connection of handcart, the electronic separating brake of earthed switch are controlled by electrical verification grounded circuit, described turnover cabinet control circuit includes the motor M2 driving moving of car, the supply line of motor M2 arranges control motor M2 work, catalyst KM3 in parallel, the main contact of catalyst KM4, supply line is connected to travel switch S1, travel switch S1 and one Parallel Control circuit connects, the parallel-connection structure of one auxiliary contact of the route routing button SB3 in this Parallel Control circuit and catalyst KM3 and a contact of catalyst KM4, catalyst KM3, travel switch S9 is composed in series, the parallel-connection structure of one auxiliary contact of another route routing button SB4 in this Parallel Control circuit and catalyst KM4 and a contact of catalyst KM3, catalyst KM4, travel switch S8 is composed in series, described electrical verification grounded circuit includes motor M1, the supply line of motor M1 arranges control motor M2 work, catalyst KM1 in parallel, the main contact of catalyst KM2, supply line is connected to auxiliary contact HN, the one of auxiliary contact HN is terminated with the shunting means of travel switch S8 and travel switch S9, the other end of auxiliary contact HN and a Parallel Control circuit connect, the parallel-connection structure of one auxiliary contact of the route routing button SB1 in this Parallel Control circuit and catalyst KM1 and a contact of catalyst KM2, catalyst KM1, travel switch S1 is composed in series, the parallel-connection structure of one auxiliary contact of another route routing button SB2 in this Parallel Control circuit and catalyst KM2 and a contact of catalyst KM1, catalyst KM2, travel switch S2 is composed in series,
Handcart electronic enter cabinet:
Earthed switch is in open position, and travel switch S1 connects, and handcart is in testing position, travel switch S9 connects, and presses the button SB3 and enters cabinet button, and catalyst KM3 coil obtains electric, main noddle on contactor is connected, and motor M2 obtains electric, handcart start to shake in cabinet into, now release button SB3, catalyst passes through KM3 auxiliary contact self-sustaining, and handcart arrives travel switch S9 during operating position and disconnects, catalyst KM3 coil losing electricity, main contact disconnects, and motor M2 quits work, and enters cabinet operation and terminates;
Handcart is electronic to offer for sale:
Earthed switch is in open position, travel switch S1 connects, handcart is in operating position, travel switch S8 connects, pressing the button SB4 to offer for sale button, catalyst KM4 coil obtains electric, and main noddle on contactor is connected, commutate with motor power when entering cabinet, motor M2 obtains electric, and handcart starts to shake out outside cabinet, now unclamps SB4, catalyst passes through KM4 auxiliary contact self-sustaining, handcart arrives travel switch S8 during testing position and disconnects, catalyst KM4 coil losing electricity, and main contact disconnects, motor M2 quits work, and operation of offeing for sale terminates.
Electrical verification ground connection operates:
Handcart is in travel switch S9 during operating position and connects, handcart is in travel switch S8 during testing position and connects, primary circuit feeds back to electrification display according to high pressure sensor, primary circuit is not charged, auxiliary contact HN closes, earthed switch is in gate-dividing state, travel switch S1 connects, press the button SB1 switch knob, catalyst KM1 coil obtains electric, main noddle on contactor is connected, motor M1 obtains electric, earthed switch starts to close a floodgate, now unclamp SB1, catalyst passes through KM1 auxiliary contact self-sustaining, when earthed switch combined floodgate puts in place, travel switch S1 disconnects, catalyst KM1 coil losing electricity, main contact disconnects, motor M1 quits work, the operation of electrical verification ground connection terminates,
The electronic separating brake of earthed switch:
Handcart is in operating position travel switch S9 and connects, handcart is in travel switch S8 during testing position and connects, primary circuit is not charged, auxiliary contact HN contacting, earthed switch is in "on" position, travel switch S2 connects, press the button SB2 switch knob, catalyst KM2 coil obtains electric, main noddle on contactor is connected, motor M1 obtains electric, earthed switch starts to close a floodgate, now release button SB2, catalyst passes through KM2 auxiliary contact self-sustaining, when grounding switch tripping puts in place, travel switch S2 disconnects, catalyst KM2 coil losing electricity, main contact disconnects, motor M1 quits work, grounding switch tripping operation terminates.
Claims (1)
1. the electronic method that offers for sale of middle-placed switch cabinet multifunctional electricity-detection, grounding trolley, is characterized in that: by control handcart electronic enter cabinet, the turnover cabinet control circuit that offers for sale control, described turnover cabinet control circuit includes the motor M2 driving moving of car, the supply line of motor M2 arranges the catalyst KM3 in parallel controlling motor M2 work, the main contact of catalyst KM4, supply line is connected to travel switch S1, travel switch S1 and one Parallel Control circuit connects, the parallel-connection structure of one auxiliary contact of the route routing button SB3 in this Parallel Control circuit and catalyst KM3 and a contact of catalyst KM4, catalyst KM3, travel switch S9 is composed in series, the parallel-connection structure of one auxiliary contact of another route routing button SB4 in this Parallel Control circuit and catalyst KM4 and a contact of catalyst KM3, catalyst KM4, travel switch S8 is composed in series,
Handcart is electronic to offer for sale:
Earthed switch is in open position, and travel switch S1 connects, and handcart is in operating position, travel switch S8 connects, and presses the button SB4 and offers for sale button, and catalyst KM4 coil obtains electric, main noddle on contactor is connected, and commutates with motor power when entering cabinet, and motor M2 obtains electric, handcart starts to shake out outside cabinet, now unclamps SB4, and catalyst passes through KM4 auxiliary contact self-sustaining, handcart arrives travel switch S8 during testing position and disconnects, catalyst KM4 coil losing electricity, main contact disconnects, and motor M2 quits work.Operation of offeing for sale terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610095689.XA CN105655908A (en) | 2014-07-18 | 2014-07-18 | Electrical coming-out method of multifunctional proofing and grounding handcart for centrally installed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610095689.XA CN105655908A (en) | 2014-07-18 | 2014-07-18 | Electrical coming-out method of multifunctional proofing and grounding handcart for centrally installed switchgear |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410341290.6A Division CN104112998B (en) | 2014-07-18 | 2014-07-18 | The method of operation of middle-placed switch cabinet multifunctional electricity-detection, grounding trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105655908A true CN105655908A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610095689.XA Pending CN105655908A (en) | 2014-07-18 | 2014-07-18 | Electrical coming-out method of multifunctional proofing and grounding handcart for centrally installed switchgear |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB732216A (en) * | 1952-11-24 | 1955-06-22 | Cyril Leslie Norfolk | Improvements in apparatus for checking the performance of patrols or tours of inspection by watchmen and the like |
| CN201886949U (en) * | 2010-11-02 | 2011-06-29 | 厦门电力成套设备有限公司 | Strong-current locking device for earth switch of high-voltage switch cabinet |
| CN202050165U (en) * | 2011-05-26 | 2011-11-23 | 西安爱尔发开关有限公司 | Control circuit for vacuum contactor or vacuum contactor and fuse combined appliance |
| CN202183333U (en) * | 2011-07-13 | 2012-04-04 | 温州益坤电气有限公司 | Electric propulsion interlocking mechanism of railway vacuum circuit breaker |
| CN202488018U (en) * | 2012-02-23 | 2012-10-10 | 常熟开关制造有限公司(原常熟开关厂） | Electric drawable component position locking device |
| CN202678137U (en) * | 2012-06-17 | 2013-01-16 | 现代重工(中国)电气有限公司 | Grounding switch electrically operated mechanism |
-
2014
- 2014-07-18 CN CN201610095689.XA patent/CN105655908A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB732216A (en) * | 1952-11-24 | 1955-06-22 | Cyril Leslie Norfolk | Improvements in apparatus for checking the performance of patrols or tours of inspection by watchmen and the like |
| CN201886949U (en) * | 2010-11-02 | 2011-06-29 | 厦门电力成套设备有限公司 | Strong-current locking device for earth switch of high-voltage switch cabinet |
| CN202050165U (en) * | 2011-05-26 | 2011-11-23 | 西安爱尔发开关有限公司 | Control circuit for vacuum contactor or vacuum contactor and fuse combined appliance |
| CN202183333U (en) * | 2011-07-13 | 2012-04-04 | 温州益坤电气有限公司 | Electric propulsion interlocking mechanism of railway vacuum circuit breaker |
| CN202488018U (en) * | 2012-02-23 | 2012-10-10 | 常熟开关制造有限公司(原常熟开关厂） | Electric drawable component position locking device |
| CN202678137U (en) * | 2012-06-17 | 2013-01-16 | 现代重工(中国)电气有限公司 | Grounding switch electrically operated mechanism |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |
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| RJ01 | Rejection of invention patent application after publication |