CN102194585B - Locking device for preventing electric protector earthing, and electric protector - Google Patents
Locking device for preventing electric protector earthing, and electric protector Download PDFInfo
- Publication number
- CN102194585B CN102194585B CN201110063146.7A CN201110063146A CN102194585B CN 102194585 B CN102194585 B CN 102194585B CN 201110063146 A CN201110063146 A CN 201110063146A CN 102194585 B CN102194585 B CN 102194585B
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- CN
- China
- Prior art keywords
- lock
- piece
- coil
- voltage
- lock piece
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a locking device for preventing an electric protector assembled in a frame (C) earthing by means of a locking member when the voltage is existent on the circuit the device belonging to. The locking member is actuated by an actuating section, and the actuating section is controlled according to the situation of the voltage existent in the circuit. The locking device further comprises a key lock (9) which is actuated by an operator to activate the locking members (3, 5) or invalidate the locking devices (3, 5) after activating an actuating unit (1) that drives the locking members (3, 5) in a locking position.
Description
Technical field
The present invention relates to the locking equipment of ground connection when preventing equipped electric protective device in the frame from there is voltage on the circuit residing for described device by locking component; described locking component is actuated by actuation component, and this actuation component controls according to the situation described circuit existing voltage.
Background technology
Ground connection locking equipment Known designs becomes to prevent electric device from there is voltage on electric wire.But, occur have a power failure time or electronic system, voltage sensor etc. break down and feeder cable do not exist voltage time, these equipment also prevent ground connection.
Summary of the invention
The present invention addresses this is that and proposes a kind of above-mentioned this locking equipment, under the failure condition of such as these permission ground connection above-mentioned that breaks down, after being checked through circuit not existing voltage, described locking equipment allows described device to carry out ground connection, this device structure is simple, volume is little, and can manufacture with a small amount of parts.
For this reason, the object of this invention is to provide a kind of above-mentioned this locking equipment, the feature of this equipment is, comprise key lock further, described key lock can be actuated by operator, thus activate described locking component or described actuation gear activate and cause described locking component be driven to lock position after the latter was lost efficacy.
According to special characteristic, above-mentioned locking component comprises the lock piece of the operation of components combined for preventing from actuating grounding apparatus.
According to another feature, prevent the parts of actuating grounding apparatus from comprising baffle plate, described baffle plate is mounted to the frame member relative to described device and is designed to obturation or release for actuating the access opening of instrument of grounding apparatus, and the biased element biases of described baffle plate is to d/d position, described hole.
According to another feature, above-mentioned actuation component comprises solenoid, and described coil comprises the york piece cooperated with described lock piece.
According to another feature, the described york piece of described coil moves between the retracted position be retracted in coil and the extended position reached outside coil, described retracted position allows described lock piece to move to unlocked position, and when described extended position, described york piece cooperates with described lock piece, thus described lock piece is remained on described lock position.
According to another feature, described lock piece is installed relative to the frame articulation of described device, the york piece of described coil cooperates with the opening be arranged on described lock piece, thus when there is voltage on the line, stop described lock piece rotate and therefore the latter remained on described lock position, and described lock piece when can't detect voltage on the line, is allowed to rotate thus described lock piece is driven into unlocked position.
According to another feature, described solenoid is the coil being called as under-voltage coil, operate with electronics combination, described electronic device design does not transmit any voltage to described coil when becoming voltage to be detected on the line, and transmits voltage to described coil when can't detect voltage on the line.
According to another feature, described lock piece comprises lock pin bolt, and described lock pin bolt is installed relative to the frame articulation of described device and can be driven rotation by operator, and described lock piece is installed relative to described lock pin bolted splice.
According to another feature, described lock piece is by being called that the connecting portion of the revolution connecting portion that slides is mechanically connected to the york piece of described coil, and described slip revolution connecting portion allows described lock piece by described coil or by described key lock bolt-lock or unblock.
According to another feature, described lock piece comprises the oblong opening cooperated with the york piece of described coil.
According to another feature, above-mentioned lock piece substantially in support shape, and comprises the first arm being attached to described lock pin bolt by its free end in hinged way; With by its free end and above-mentioned the second arm preventing the parts of actuating grounding apparatus from cooperating.
According to another feature, described locking equipment comprise after unlocking voltage reproductions on the line time, described lock piece is biased into the parts of described lock position.
According to another feature, be positioned at it on the surface of the york piece of described coil, described lock piece comprises the part surface that there is slope relative to above-mentioned surface, thus when voltage reproductions is on circuit, allow the york piece of described coil that described lock piece is placed in described lock position after unlocking.
Further aim of the present invention is to provide a kind of electric protective device comprising one of above-mentioned feature or its combination.
Accompanying drawing explanation
But other advantages of the present invention and feature will more clearly embody from the following detailed description, the accompanying drawing with reference to being merely given as examples below is described, in the accompanying drawings:
Fig. 1 is the schematic diagram that locking equipment according to the present invention is in lock position;
Fig. 2 illustrates that the locking equipment according to particular implementation of the present invention is in the perspective view of lock position;
Fig. 3 illustrates that the described locking equipment be fitted in electrical switchgear is in the front view of lock position;
Fig. 4 is the perspective view that a described locking equipment part is only shown;
Fig. 5,6,7 and 8 be similar to respectively Fig. 1,2, the view of 3 and 4, now described locking equipment is in the position unlocked by described coil;
Fig. 8 a is the perspective view of a part of equipment shown in Fig. 7, and this part is observed from rear; With
Fig. 9,10,11 and 12 be similar to Fig. 1,2, the view of 3 and 4, show described locking equipment and be in the position unlocked by key lock.
Detailed description of the invention
In the accompanying drawings, can regard as according to the locking equipment of the specific embodiment of the invention and be designed to prevent be grounded when there is voltage in the circuit of electric protective device such as medium voltage breaker or switch equipped described device thereon.
Described equipment comprises the watch-dog (not shown) its upper electric wire being equipped with described device of monitoring existing voltage, with solenoid 1, described solenoid comprises york piece 2, described york piece can move when there is voltage, thus makes baffle plate 5 block hole 4 for inserting the instrument (not shown) of actuating grounding apparatus M.York piece 2 can move between the retracted position be retracted in coil 1 and the extended position reaching the york piece 2 outside described coil 1, when described retracted position, lock piece 3 is free to travel to unlocked position, and when described extended position, york piece 2 stops lock piece 3 move to described unlocked position and therefore the latter remained on lock position, prevents grounding apparatus M from operating.
Embodiment with reference to the accompanying drawings, coil 1 is the coil being called under-voltage coil, and when not having voltage to be sent to coil 1, york piece 2 is driven to outside coil 1.Therefore between circuit voltage monitoring device and coil 1, central electron equipment (not shown) is provided with, described equipment de-sign becomes to transmit voltage when line voltage distribution not detected to described coil 1, and it is contrary, detect circuit exists voltage time, do not transmit any voltage to coil 1.
This equipment also comprises inaccessible baffle plate 5, described inaccessible baffle plate is mounted to rotate relative to the framework C of described device, and be designed to by above-mentioned lock piece 3 along driving with rotating clockwise, thus blocking the access opening 4 of the instrument for actuating grounding apparatus M, described baffle plate 5 is biased into the position discharging described hole by biasing member (not shown).
Lock piece 3 is formed by the parts in rack form comprising two arms 6,7, wherein one arm 6 is connected to the lock pin bolt 8 of key lock 9 in hinged way around pivotal pin X by its free end 6a, described lock pin bolt forms a part for unlocker device, its function will be described later, and another arm 7 comprises the end 7a being designed to operate in conjunction with baffle plate 5.Lock pin bolt 8 can by key by operator's rotary motion between the primary importance being called as passive position (representing in Fig. 1 to 8) and the second place being called as moving position shown in Fig. 9 to 12, when described passive position, only have the motion of coil york piece can cause grounding apparatus locking or unblock, motion from passive position to moving position causes lock piece to unlock, and is inserted into make the instrument of actuating of grounding apparatus.
Lock piece 3 comprises oblong opening 10, and described opening parallel extends in the arm 6 of lock piece 3 of the lock pin bolt 8 being connected to key lock in hinged way, and described opening 10 is designed to receive york piece 2 and cooperate with the latter, will explain as following.
As shown in Figure 8 a, on its surface 11 cooperated with york piece 2, lock piece 3 comprise relative to lock piece 3 described surperficial 11 in the part surface 12 on slope, this part surface is designed to cooperate with york piece 2, thus again detect in circuit when there is voltage after unblock, described lock piece is biased into its lock position.Oblong opening 10 and ramped surfaces part 12 adjacent flanges 13, this flange defines certain region, and the end of york piece 2 is designed to move in this region, and flange 13 guides described york piece 2 in this region.
Describe operation of the apparatus according to the invention in detail with reference to the accompanying drawings below:
In Fig. 1 to 4, detect that utilizing monitoring system after circuit exists voltage, described equipment is in described lock position.
In this position, the york piece 2 of coil 1 is in the extended position of coil, and inserts in the opening 10 of lock piece 3, stops lock piece 3 to rotate relative to the lock pin bolt 8 of key lock thus.In this position, baffle plate 5 is remained on the position in the hole 4 blocked for inserting the instrument of actuating by lock piece.
When described watch-dog detects voltage no longer on the line, the york piece 2 of coil 1 shifts out and is retracted in coil from the opening 10 of lock piece, thus allow lock piece to rotate counterclockwise relative to lock pin bolt, in view of above-mentioned biasing device drives described flapper to the impact of d/d position, hole 4, described lock piece is driven by described baffle plate 5.Therefore described inaccessible baffle plate 5 is driven counterclockwise, thus discharges described hole and allow the operating grip of described grounding apparatus to insert.This position is shown in Fig. 5 to 8.
Also comprise according to equipment of the present invention and allow described latch functions as required by equipment that key lock 9 lost efficacy.
Coil 1 is under-voltage coil, and therefore once no longer to coil power supply, then latch functions will be had an effect.Therefore, need to cause in thrashing (defect coil, power failure, electronic failure etc.) coil power supply to lack and be checked through when cable not existing voltage, the effect of coil can be made to lose efficacy.
Therefore, after being checked through circuit do not exist voltage, key lock 9 can be actuated.For this reason, key to be inserted in lock core and to rotate clockwise 90 °, and drive lock pin-bolt also to drive the pivotal pin of the lock piece 3 of lock piece on the york piece 2 and lock pin bolt 8 of coil 1 to rotate in the opposite direction along identical direction of rotation, due to york piece 2 also translation inside the oblong opening 10 of lock piece 3, so this rotation can be carried out.
Due to the effect of above-mentioned biasing device, so the rotation of lock piece 3 makes baffle plate 5 rotate to equidirectional, described baffle plate discharges from the pressure of lock piece, and this causes the hole for inserting the instrument of actuating to be released.The position unlocked by key lock is shown in Fig. 9 to 12.
Therefore, by present invention achieves a kind of locking equipment, this equipment can be unlocked causing this equipment moving by operator under the specified conditions of lock position, after being checked through circuit not existing voltage, it is feasible for doing like this, and this equipment volume is little, uses a small amount of parts and with low cost.
This latch functions that can unlock by key lock in fact only realizes by 3 parts, the pivotal pin of the described lock piece namely on the lock pin bolt of lock piece, key lock and lock pin bolt, described lock piece is fitted to the lock pin bolt upper rotary at described key lock and turns round slidably on the york piece of described coil.This dynamical structure allows described lock piece by described coil or described key lock bolt-lock or unblock.
The present invention is not limited to described in literary composition and the embodiment be merely given as examples shown in figure certainly.
But contrary, the present invention extends to the whole technical equivalents scheme and their combination that cover described device, realizes if this combination is spirit according to the present invention.
Claims (14)
1. the locking equipment of ground connection when preventing equipped electric protective device in the frame from there is voltage on the circuit residing for described device by locking component, described locking component is actuated by actuation component, and this actuation component controls according to the situation described circuit existing voltage, it is characterized in that, described locking equipment comprises key lock (9) further, described key lock can be actuated by operator, thus activate described locking component (3, 5) or activate in described actuation component and cause described locking component (3, 5) be driven to lock position after described locking component was lost efficacy.
2. locking equipment as claimed in claim 1, it is characterized in that, described locking component (3,5) comprises the lock piece (3) that combination prevents the parts (5) of actuating grounding apparatus (M) from operating.
3. locking equipment as claimed in claim 2, it is characterized in that, prevent the parts of actuating grounding apparatus from comprising baffle plate (5), described baffle plate is mounted to rotate relative to the framework (C) of described device and is designed to obturation or release for actuating the access opening (4) of instrument of grounding apparatus (M), and described baffle plate (5) biased element biases is to described hole (4) d/d position.
4. locking equipment as claimed in claim 2, it is characterized in that, described actuation component comprises solenoid (1), and described coil (1) comprises the york piece (2) cooperated with described lock piece (3).
5. locking equipment as claimed in claim 4, it is characterized in that, the described york piece (2) of described coil (1) moves in the retracted position be retracted in coil (1) and reaching between coil (1) extended position outward, described retracted position allows described lock piece (3) to move to unlocked position, and when described extended position, described york piece (2) cooperates with described lock piece (3), thus described lock piece (3) is remained on described lock position.
6. locking equipment as claimed in claim 4, it is characterized in that, described lock piece (3) is relative to framework (C) the hinged installation of described device, the york piece (2) of described coil (1) cooperates with the opening (10) be arranged on described lock piece (3), thus when there is voltage on the line, stop described lock piece rotate and therefore the latter remained on described lock position, and when can't detect voltage on the line, allow described lock piece rotate thus described lock piece is driven into unlocked position.
7. the locking equipment as described in any one of claim 4 to 6, it is characterized in that, described solenoid (1) is the coil being called as under-voltage coil, operate with electronics combination, described electronic device design does not transmit any voltage to described coil when becoming voltage to be detected on the line, and transmits voltage to described coil when can't detect voltage on the line.
8. locking equipment as claimed in claim 7, it is characterized in that, described key lock (9) comprises lock pin bolt (8), described lock pin bolt relative to described device framework (C) hinged installation and rotation can be driven by operator, and described lock piece (3) is relative to the hinged installation of described lock pin bolt (8).
9. the locking equipment as described in claim 6 or 8, it is characterized in that, described lock piece (3) is by being called that the connecting portion of the revolution connecting portion that slides is mechanically connected to the york piece (2) of described coil (1), and described slip revolution connecting portion allows described lock piece (3) by described coil (1) or by described key lock (9) bolt-lock or unblock.
10. locking equipment as claimed in claim 9, it is characterized in that, described lock piece (3) comprises the oblong opening (10) cooperated with the york piece of described coil (1) (2).
11. locking equipment as claimed in claim 8, it is characterized in that, described lock piece (3) is substantially in support shape, and comprise the first arm (6) and the second arm (7), described first arm joins described lock pin bolt (8) in hinged way by the free end (6a) of described first arm, and described second arm is cooperated with the described parts of actuating grounding apparatus (M) that prevent by the free end (7a) of described second arm.
12. as claim 2-6,8,10, the locking equipment described in any one in 11, is characterized in that, described locking equipment comprise after unlocking voltage reproductions on the line time, described lock piece (3) is biased into the parts of described lock position.
13. as claim 6,8,10, locking equipment described in any one in 11, it is characterized in that, be positioned at it on the surface (11) of the york piece (2) of described coil (1), described lock piece (3) comprises the part surface (12) that there is slope relative to described surface (11), thus unlock after and when voltage reproductions is on circuit, allow the york piece of described coil (1) (2) that described lock piece (3) is placed in described lock position.
14. 1 kinds of electric protective devices comprising locking equipment described in any one of claim 1 to 13.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1001038A FR2957714B1 (en) | 2010-03-16 | 2010-03-16 | LOCKING DEVICE FOR PREVENTING THE GROUNDING OF AN ELECTRICAL PROTECTION DEVICE AND AN ELECTRICAL PROTECTION APPARATUS COMPRISING SUCH A DEVICE |
| FR10/01038 | 2010-03-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102194585A CN102194585A (en) | 2011-09-21 |
| CN102194585B true CN102194585B (en) | 2015-04-29 |
Family
ID=42830008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110063146.7A Active CN102194585B (en) | 2010-03-16 | 2011-03-16 | Locking device for preventing electric protector earthing, and electric protector |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2367190B1 (en) |
| CN (1) | CN102194585B (en) |
| ES (1) | ES2592927T3 (en) |
| FR (1) | FR2957714B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2986899B1 (en) * | 2012-02-14 | 2016-05-06 | Schneider Electric Ind Sas | DEVICE FOR CONTROLLING THE MECHANISM OF A MEDIUM OR HIGH VOLTAGE ELECTRICAL PROTECTION APPARATUS AND ELECTRICAL PROTECTION APPARATUS HAVING THE SAME |
| CA2990853A1 (en) | 2015-06-30 | 2017-01-05 | Remsafe Pty Ltd | A remote isolation system and mobile device for use in the remote isolation system |
| AU2016204520A1 (en) * | 2015-06-30 | 2017-01-19 | Remsafe Pty Ltd | An equipment isolation switch assembly |
| US10162313B2 (en) | 2015-06-30 | 2018-12-25 | Remsafe Pty Ltd. | Equipment isolation system |
| FR3113335B1 (en) | 2020-08-10 | 2022-11-04 | Schneider Electric Ind Sas | Interlocking device intended to prevent the earthing of a protective device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB457128A (en) * | 1935-05-22 | 1936-11-23 | Reyrolle A & Co Ltd | Improvements in or relating to electric switchgear |
| EP1049123A1 (en) * | 1999-04-26 | 2000-11-02 | Alstom | Control device with three positions for electrical apparatus |
| CN1381062A (en) * | 2000-03-17 | 2002-11-20 | 通用电气公司 | Locking device for molded case circuit breakers |
| CN1399296A (en) * | 2001-06-20 | 2003-02-26 | 阿尔斯托姆公司 | Breaker actuator inserted in detachable rotating parts with linking logic |
-
2010
- 2010-03-16 FR FR1001038A patent/FR2957714B1/en not_active Expired - Fee Related
- 2010-11-29 ES ES10354084.5T patent/ES2592927T3/en active Active
- 2010-11-29 EP EP10354084.5A patent/EP2367190B1/en active Active
-
2011
- 2011-03-16 CN CN201110063146.7A patent/CN102194585B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB457128A (en) * | 1935-05-22 | 1936-11-23 | Reyrolle A & Co Ltd | Improvements in or relating to electric switchgear |
| EP1049123A1 (en) * | 1999-04-26 | 2000-11-02 | Alstom | Control device with three positions for electrical apparatus |
| CN1381062A (en) * | 2000-03-17 | 2002-11-20 | 通用电气公司 | Locking device for molded case circuit breakers |
| CN1399296A (en) * | 2001-06-20 | 2003-02-26 | 阿尔斯托姆公司 | Breaker actuator inserted in detachable rotating parts with linking logic |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2957714B1 (en) | 2012-03-02 |
| EP2367190B1 (en) | 2016-06-22 |
| EP2367190A1 (en) | 2011-09-21 |
| FR2957714A1 (en) | 2011-09-23 |
| ES2592927T3 (en) | 2016-12-02 |
| CN102194585A (en) | 2011-09-21 |
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