CN204144704U - Switch cubicle anti-misoperation locking lockset and anti-misoperation locking device - Google Patents
Switch cubicle anti-misoperation locking lockset and anti-misoperation locking device Download PDFInfo
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- CN204144704U CN204144704U CN201420542295.0U CN201420542295U CN204144704U CN 204144704 U CN204144704 U CN 204144704U CN 201420542295 U CN201420542295 U CN 201420542295U CN 204144704 U CN204144704 U CN 204144704U
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Abstract
The utility model provides switch cubicle anti-misoperation locking lockset and anti-misoperation locking device, has the electrification in high voltage testing circuit of release mechanism electrical connection, detection signal whether charged for equipment in the switch cubicle detected is transferred to release mechanism; During unblock, the release mechanism of switch cubicle anti-misoperation locking lockset is connected with key release mechanism and the detection signal of electrification in high voltage testing circuit is transferred to key release mechanism, and detection signal is transferred to control circuit by key release mechanism.During use, be inserted into by operation key on switch cubicle anti-misoperation locking lockset, when electrification in high voltage testing circuit detects equipment live, operation key release mechanism on the key can not carry out unlocking operation, thus cannot remove the locking of equipment; When equipment being detected without electricity, operation key cancel switch cabinet anti-misoperation locking lockset and anti-misoperation locking device are to the locking of equipment; This anti-misoperation locking device achieves electrical verification and unlocks and synchronously completes, and improves processing safety and the operating efficiency of operating personnel.
Description
Technical field
The utility model relates to distribution net equipment lock-out techniques field, particularly relates to a kind of switch cubicle anti-misoperation locking lockset and anti-misoperation locking device.
Background technology
Ring main unit has simple and reliable characteristic due to it, uses in a large number in the supplying power allocation network in city, and operating personnel are also very large to its maintenance, occur the situation that operating sequence is slipped up in maintenance work process unavoidably.Be specially: the anti-misoperation apparatus having machinery between the on-load switch of ring main unit and earthing switch blade, but ring network power supply and hand in hand network connection mode time, electric power incoming line will can not prevent the pernicious misoperation of charged conjunction earthing switch blade due to the error-proof device defect of ring main unit itself.Therefore, locking must be carried out to the operation of earthing switch blade, first differentiate whether cable has electricity, just allow when only having cable not charged to close earthing switch blade.Although existing ring main unit itself has the anti-misoperation apparatus of various machinery, but the anti-misoperation apparatus of various machinery is mostly in the category of protection separately, as conventional high-voltage potential indicator, the measuring ability whether looped network cabinet equipment is charged is only provided, locking can not be carried out to other equipment or lockset.And the blocking mechanism of disconnecting link is generally in cabinet, traditional way is to earthing switch blade handle hole padlock, artificial cognition is carried out by operating personnel when operational grounding plug-in strip, operate without unlocking during electricity at cable, but there is risk in this mode of artificial judgement that relies on completely, there is the possibility of charged co-grounding switch.The way to manage of this discrete, lacks integrated operation, once artificial error in judgement, easily occurs misoperation lockset, affects personal safety and the operating efficiency of operating personnel.Do not meet the requirement of electrical network intelligent development.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of switch cubicle anti-misoperation locking lockset and anti-misoperation locking device, solve the problem operating between various equipment in high-tension switch cabinet and do not have overall relevance, electrification in high voltage deixis and blocking function can be merged, structure is simple, reliable operation.
The utility model is achieved through the following technical solutions:
Switch cubicle anti-misoperation locking lockset, includes:
Housing;
Blocking mechanism, for carrying out locking to switch cubicle;
Release mechanism, described release mechanism is connected with blocking mechanism, and described release mechanism is in locking or unlocking state for controlling blocking mechanism;
Described release mechanism and blocking mechanism are arranged on housing or in housing cavity;
Wherein, described switch cubicle anti-misoperation locking lockset also includes electrification in high voltage testing circuit, described electrification in high voltage testing circuit is positioned at enclosure interior, described electrification in high voltage testing circuit and described release mechanism are electrically connected, and detection signal whether charged for equipment in the switch cubicle detected is transferred to described release mechanism.
Anti-misoperation locking device, wherein, includes above-mentioned switch cubicle anti-misoperation locking lockset and operation key; Described operation key includes: key housing, key release mechanism and control circuit; Described control circuit is arranged in key housing cavity, and key release mechanism is arranged on key housing or in inner chamber, key release mechanism and control circuit electrical connection, and control circuit is for controlling the unlocking motion of key release mechanism; During unblock, the release mechanism of described switch cubicle anti-misoperation locking lockset is connected with key release mechanism and the detection signal of described electrification in high voltage testing circuit is transferred to key release mechanism, detection signal is transferred to control circuit by key release mechanism, and whether control circuit controls key release mechanism can carry out unlocking operation.
The beneficial effects of the utility model are as follows:
Switch cubicle anti-misoperation locking lockset of the present utility model and anti-misoperation locking device, because switch cubicle anti-misoperation locking lockset includes electrification in high voltage testing circuit, described electrification in high voltage testing circuit is positioned at enclosure interior, described electrification in high voltage testing circuit and described release mechanism are electrically connected, and detection signal whether charged for equipment in the switch cubicle detected is transferred to described release mechanism; During unblock, the release mechanism of described switch cubicle anti-misoperation locking lockset is connected with key release mechanism and the detection signal of described electrification in high voltage testing circuit is transferred to key release mechanism, detection signal is transferred to control circuit by key release mechanism, and whether control circuit controls key release mechanism can carry out unlocking operation.During use, described switch cubicle anti-misoperation locking lockset is arranged on high-voltage switch cabinet door or grounding switch operating mechanism, when needing operational grounding disconnecting link or open cabinet door, operation key is inserted on switch cubicle anti-misoperation locking lockset, when electrification in high voltage testing circuit detects equipment live, operation key release mechanism on the key can not carry out unlocking operation, thus cannot remove the locking of equipment; When equipment being detected without electricity, operation key cancel switch cabinet anti-misoperation locking lockset and anti-misoperation locking device are to the locking of equipment; Traditional electrical verification and unblock need separate operations to merge into one by this utility model, under ensure that charged situation, operating personnel cannot open cabinet door, the equipment such as device cannot to be operated in cabinet, achieves electrical verification and unlock and synchronously complete, improve processing safety and the operating efficiency of operating personnel.Switch cubicle anti-misoperation locking lockset of the present utility model and anti-misoperation locking device solve current electrical verification and unlock substep and complete Problems existing, eliminate the possibility easily occurring operating accident, ensure that the Electrical Safety of the personal safety of operating personnel, equipment security of operation and huge numbers of families; Due to this anti-misoperation locking device, equipment live status monitoring is conciliate blocking function to merge into one, the operating efficiency of operating personnel has had large increase, integrated apparatus decreases the manpower required for installation, and installation workload reduces greatly, has economic benefit clearly and social benefit.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the utility model switch cubicle anti-misoperation locking lockset;
Fig. 2 is the side sectional structure schematic diagram of the utility model switch cubicle anti-misoperation locking lockset;
Fig. 3 is the blocking sectional structure schematic diagram of the utility model switch cubicle anti-misoperation locking lockset;
Fig. 4 is the released state sectional structure schematic diagram of the utility model switch cubicle anti-misoperation locking lockset;
Fig. 5 is the syndeton schematic diagram of the electrification in high voltage control circuit of the utility model switch cubicle anti-misoperation locking lockset;
Fig. 6 is the operation key perspective view of the utility model anti-misoperation locking device;
Fig. 7 is the operation Keyed interior structural representation of the utility model anti-misoperation locking device;
Fig. 8 is the operation key button blocking structural representation of the utility model anti-misoperation locking device;
Fig. 9 is the action button released state structural representation of the operation key of the utility model anti-misoperation locking device;
Figure 10 is the action button released state perspective view of the operation key of the utility model anti-misoperation locking device;
Figure 11 is the operation operation key released state sectional structure schematic diagram of the utility model anti-misoperation locking device.
Description of reference numerals:
1-housing, 2-lockweight, 21-groove, 3-release mechanism, the square deep gouge of 31-, 32-unlock rotary head, 33-electrode stem, 34-trip lever, 35-back-moving spring, 4-electrification in high voltage testing circuit, 41-indicator light, 42-MCU, 5-lockweight spring, 100-key housing, 110-key release mechanism, 120-control circuit, 130-action button, 140-solenoid, 111-latch release shaft, 112-electrode axis, 113-reading terminal, 141-solenoid iron core, 121-operation key MCU.
Embodiment
The utility model, in order to solve the problem of prior art, proposes a kind of switch cubicle anti-misoperation locking lockset, as shown in Fig. 1 to 5, includes:
Housing 1;
Blocking mechanism, for carrying out locking to switch cubicle;
Release mechanism 3, described release mechanism 3 is connected with blocking mechanism, and described release mechanism 3 is in locking or unlocking state for controlling blocking mechanism;
Described release mechanism 3 is arranged on housing or in housing cavity with blocking mechanism;
Wherein, described switch cubicle anti-misoperation locking lockset also includes electrification in high voltage testing circuit 4, it is inner that described electrification in high voltage testing circuit 4 is positioned at housing 1, described electrification in high voltage testing circuit 4 is electrically connected with described release mechanism 3, and detection signal whether charged for equipment in the switch cubicle detected is transferred to described release mechanism 3.
Anti-misoperation locking device, wherein, as shown in Fig. 6 to 9, includes above-mentioned switch cubicle anti-misoperation locking lockset and operation key; Described operation key includes: key housing 100, key release mechanism 110 and control circuit 120; Described control circuit 120 is arranged in key housing 100 inner chamber, key release mechanism 110 is arranged on key housing 100 or in inner chamber, key release mechanism 110 and control circuit 120 are electrically connected, and control circuit 120 is for controlling the unlocking motion of key release mechanism 110; During unblock, the release mechanism 3 of described switch cubicle anti-misoperation locking lockset is connected with key release mechanism 110 and the detection signal of described electrification in high voltage testing circuit 4 is transferred to key release mechanism 110, detection signal is transferred to control circuit 120 by key release mechanism 110, and whether control circuit 120 controls key release mechanism 110 can carry out unlocking operation.
Wherein in an embodiment, as shown in Fig. 1 to 5, described switch cubicle anti-misoperation locking lockset is provided with operation key solution lock interface, and described key solution lock interface comprises the square deep gouge 31 being positioned at housing 1 front, during unblock, the head of operation key embeds in square deep gouge 31.
Described release mechanism 3 includes and unlocks rotary head 32, electrode stem 33, trip lever 34 and back-moving spring 35, described unblock rotary head 32 and electrode stem 33 are installed on the front of housing 1, lay respectively at the two ends of square deep gouge 31, trip lever 34 and back-moving spring 35 are arranged in the inner chamber of housing 1; Described electrode stem 33 is electrically connected with electrification in high voltage testing circuit 4; Unlock rotary head 32 be connected with trip lever 34 and control trip lever 34 action, back-moving spring 35 is directly or indirectly connected with trip lever 34, for providing pulling force for trip lever 34.
Further, described electrification in high voltage testing circuit 4 includes indicator light 41 and MCU42; Described indicator light 41 is positioned on housing 1, and MCU42 is respectively with indicator light 41 with unlock rotary head 32 and be electrically connected; Described MCU42 can receive and identify the detection signal that in switch cubicle, whether equipment is charged, and detection signal is passed to indicator light 41 and unlock rotary head 32.
Described blocking mechanism is a kind of lockweight 2, and described lockweight 2 is provided with a groove 21; Described lockweight 2 is installed on housing 1, and the two ends of described lockweight 2 are stretched out from housing 1 two sides; Described lockweight 2 is cylindrical structure, and outer end is provided with a cylinder step, convenience manual manipulation; Under blocking, after lockweight 2 shifts locked position of coupler onto, the trip lever 34 in release mechanism 3 automatically inserts in the groove 21 of lockweight 2 under back-moving spring 35 acts on, and trip lever 34 stops the movement of lockweight 2.
As shown in Fig. 6 to 9, described key release mechanism 110 includes action button 130, the key release mechanism 110 of described operation key is positioned at the top of key housing 100, action button 130 is positioned at the front of key housing 100, described control circuit 120 includes MCU121, solenoid 140 and other various electronic components, solenoid 140 and MCU121 are electrically connected; Described key release mechanism 110 includes latch release shaft 111, electrode axis 112 and reading terminal 113 3 part composition, latch release shaft 111 and electrode axis 112 are connected electrically on the MCU121 of control circuit respectively, described solenoid 140 is arranged on bottom button, under blocking, in the groove of solenoid iron core 141 update button 130, stop the movement of action button 130.
As shown in Fig. 5,10,11, during unblock, operation latch release shaft 111 is on the key connected with the unblock rotary head 32 on switch cubicle anti-misoperation locking lockset, operation electrode axis 112 is on the key connected with the electrode stem 33 on switch cubicle anti-misoperation locking lockset, operation reading terminal 113 on the key inserts in the square deep gouge 31 on housing 1, thus operation key and switch cubicle anti-misoperation locking lockset link together.As Fig. 5, because the latch release shaft 111 operating key is directly connected with the MCU42 on electrification in high voltage testing circuit 4 with electrode axis 112.The equipment live information got in control circuit MCU42 is delivered in operation key by key release mechanism, MCU121 on operation key inner control circuit identifies, if MCU121 confirms equipment live, then the solenoid 140 operated in key is failure to actuate, continue the action stopping action button 130, switch cubicle anti-misoperation locking lockset can not unlock.
During work, switch cubicle anti-misoperation locking lockset is arranged on high-voltage switch cabinet door or grounding switch operating mechanism, when needing operational grounding disconnecting link or open cabinet door, operation key is inserted in the release mechanism of switch cubicle anti-misoperation locking lockset, the mandate of operation key obtains equipment live information, and when equipment live being detected, operation action button 130 is on the key withstood by the solenoid 140 in operation key, operation key cannot press the operation button 130, thus cannot remove the locking of equipment; When equipment being detected without electricity, can push action button 130 on the key, anti-misoperation locking device removes the locking to equipment.
Can need install or Wireless code sheet be not installed according to scene in the square groove 31 of the release mechanism 3 of described switch cubicle anti-misoperation locking lockset.Preferably, the square groove 31 of the release mechanism 3 of described switch cubicle anti-misoperation locking lockset is interior installs Wireless code sheet.
Preferably, during unblock, described operation reading terminal 113 on the key inserts in the square groove 31 on anti-misoperation locking device.
Working method:
As shown in Figure 10, Figure 11, after operation key inserts switch cubicle anti-misoperation locking lockset, operation latch release shaft 111 is on the key connected with the unblock rotary head 32 on anti-misoperation locking device, operation electrode axis 112 is on the key connected with the electrode stem 33 on anti-misoperation locking device, operation reading terminal 113 on the key inserts in the square groove 31 on anti-misoperation locking device, thus operation key and switch cubicle anti-misoperation locking lockset link together.As Fig. 5, because the latch release shaft 111 operating key is directly connected with the MCU42 on control circuit 4 with electrode axis 112, the equipment live information got in control circuit MCU42 can be delivered in operation key by key release mechanism, MCU121 on operation key inner control circuit identifies, if MCU121 confirms equipment live, then the solenoid 140 operated in key is failure to actuate, and continue the action stopping action button 130, switch cubicle anti-misoperation locking lockset can not unlock.
If the MCU121 on control circuit can't detect electric current, then judge that circuit is not charged, then connect solenoid 140 power supply, solenoid iron core 141 is energized after-contraction, remove the stop to action button 130, press the operation button 130, latch release shaft 111 then can be driven to rotate, latch release shaft 111 drives the unblock rotary head 32 in locking device 1 to rotate, unlock rotary head 32 and drive trip lever 34 upwards compression reseting spring 35, trip lever 34 is thrown off from the groove 21 of lockweight 2, lockweight 2 outwards flicks under lockweight spring 5 acts on, switch cubicle anti-misoperation locking lockset has unlocked, operation key is extracted.
During lock operation, when switch cubicle anti-misoperation locking lockset is after interlock, with hand push lockweight 2, lockweight 2 compresses lockweight spring 5, the groove 21 on lockweight 2 until trip lever 34 aligns, trip lever 34 inserts in the groove 21 of lockweight 2 under back-moving spring 35 thrust, stops that lockweight 2 is opened.Lock operation completes.
The above embodiment only have expressed execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (9)
1. switch cubicle anti-misoperation locking lockset, includes:
Housing (1);
Blocking mechanism, for carrying out locking to switch cubicle;
Release mechanism (3), described release mechanism (3) is connected with blocking mechanism, and described release mechanism (3) is in locking or unlocking state for controlling blocking mechanism;
Described release mechanism (3) and blocking mechanism are arranged on housing or in housing cavity;
It is characterized in that, described switch cubicle anti-misoperation locking lockset also includes electrification in high voltage testing circuit (4), it is inner that described electrification in high voltage testing circuit (4) is positioned at housing (1), described electrification in high voltage testing circuit (4) and described release mechanism (3) are electrically connected, and detection signal whether charged for equipment in the switch cubicle detected is transferred to described release mechanism (3).
2. switch cubicle anti-misoperation locking lockset according to claim 1, is characterized in that, be provided with operation key solution lock interface, described key solution lock interface comprises the square deep gouge (31) being positioned at housing (1) front.
3. switch cubicle anti-misoperation locking lockset according to claim 1, it is characterized in that, described release mechanism (3) includes and unlocks rotary head (32), electrode stem (33), trip lever (34) and back-moving spring (35), described unblock rotary head (32) and electrode stem (33) are installed on the front of housing (1), lay respectively at the two ends of square deep gouge (31), trip lever (34) and back-moving spring (35) are arranged in the inner chamber of housing (1); Described electrode stem (33) and electrification in high voltage testing circuit (4) are electrically connected; Unlock rotary head (32) be connected with trip lever (34) and control trip lever (34) action, back-moving spring (35) is directly or indirectly connected with trip lever (34), for providing pulling force for trip lever (34).
4. switch cubicle anti-misoperation locking lockset according to claim 3, is characterized in that, described electrification in high voltage testing circuit (4) includes indicator light (41) and MCU (42); Described indicator light (41) is positioned on housing (1), and MCU (42) is respectively with indicator light (41) with unlock rotary head (32) and be electrically connected; Described MCU (42) can receive and identify the detection signal that in switch cubicle, whether equipment is charged, and detection signal is passed to indicator light (41) and unlock rotary head (32).
5. switch cubicle anti-misoperation locking lockset according to claim 4, is characterized in that, described blocking mechanism is a kind of lockweight (2), and described lockweight (2) is provided with a groove (21); Described lockweight (2) is installed on housing (1), and the two ends of described lockweight (2) are stretched out from housing (1) two sides; Described lockweight (2) is cylindrical structure; Under blocking, after lockweight (2) shifts locked position of coupler onto, trip lever (34) in release mechanism (3) automatically inserts in the groove (21) of lockweight (2) under back-moving spring (35) effect, and trip lever (34) stops the movement of lockweight (2).
6. anti-misoperation locking device, is characterized in that, includes as the switch cubicle anti-misoperation locking lockset in claim 1 to 5 as described in any one and operation key; Described operation key includes: key housing (100), key release mechanism (110) and control circuit (120); Described control circuit (120) is arranged in key housing (100) inner chamber, key release mechanism (110) is arranged on key housing (100) or in inner chamber, key release mechanism (110) and control circuit (120) electrical connection, control circuit (120) is for controlling the unlocking motion of key release mechanism (110); During unblock, the release mechanism (3) of described switch cubicle anti-misoperation locking lockset is connected with key release mechanism (110) and the detection signal of described electrification in high voltage testing circuit (4) is transferred to key release mechanism (110), detection signal is transferred to control circuit (120) by key release mechanism (110), and whether control circuit (120) controls key release mechanism (110) can carry out unlocking operation.
7. anti-misoperation locking device according to claim 6, it is characterized in that, described key release mechanism (110) includes action button (130), the key release mechanism (110) of described operation key is positioned at the top of key housing (100), action button (130) is positioned at the front of key housing (100), described control circuit (120) includes MCU (121) and solenoid (140), solenoid (140) and MCU (121) are electrically connected; Described key release mechanism (110) includes latch release shaft (111), electrode axis (112) and reading terminal (113), latch release shaft (111) and electrode axis (112) are connected electrically on the MCU (121) of control circuit respectively, described solenoid (140) is arranged on bottom button, under blocking, in the groove of solenoid iron core (141) update button (130), stop the movement of action button (130).
8. anti-misoperation locking device according to claim 7, it is characterized in that, during unblock, operation latch release shaft (111) is on the key connected with the unblock rotary head (32) on switch cubicle anti-misoperation locking lockset, operation electrode axis (112) is on the key connected with the electrode stem (33) on switch cubicle anti-misoperation locking lockset, operation reading terminal (113) on the key inserts in the square deep gouge (31) on housing (1), thus operation key and switch cubicle anti-misoperation locking lockset link together.
9. according to the anti-misoperation locking device in claim 6 to 8 described in any one, it is characterized in that, in the square groove (31) of the release mechanism (3) of described switch cubicle anti-misoperation locking lockset, Wireless code sheet is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542295.0U CN204144704U (en) | 2014-09-19 | 2014-09-19 | Switch cubicle anti-misoperation locking lockset and anti-misoperation locking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542295.0U CN204144704U (en) | 2014-09-19 | 2014-09-19 | Switch cubicle anti-misoperation locking lockset and anti-misoperation locking device |
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| CN204144704U true CN204144704U (en) | 2015-02-04 |
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| CN201420542295.0U Active CN204144704U (en) | 2014-09-19 | 2014-09-19 | Switch cubicle anti-misoperation locking lockset and anti-misoperation locking device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106226584A (en) * | 2016-08-31 | 2016-12-14 | 贵州电网有限责任公司贵阳供电局 | It is applicable to electrical verification householder method and the device of different size central switch cabinet |
| CN106972489A (en) * | 2017-05-16 | 2017-07-21 | 国网山东省电力公司菏泽供电公司 | The positive and negative two-way anti-misoperation system of ring network power supply |
| CN107069719A (en) * | 2017-05-16 | 2017-08-18 | 华电北瑞电气(北京)有限公司 | A kind of ring network power supply anti-misoperation system |
| CN108469758A (en) * | 2018-01-30 | 2018-08-31 | 国网浙江省电力公司宁波供电公司 | A kind of switchgear anti-misoperation locking control system based on electromagnetic induction |
| CN108629879A (en) * | 2018-06-08 | 2018-10-09 | 广东电网有限责任公司 | A kind of dual tripper of switchgear anti-misoperation |
| CN109300718A (en) * | 2018-09-13 | 2019-02-01 | 广东求精电气有限公司 | A kind of switchgear anti-misoperation locking device |
| CN110010404A (en) * | 2019-05-15 | 2019-07-12 | 江苏洛云电力科技有限公司 | High-voltage electrified locking device |
| CN110242105A (en) * | 2019-05-30 | 2019-09-17 | 国网山东省电力公司莱州市供电公司 | Multi-functional substation five is anti-lock |
| CN116935600A (en) * | 2023-09-18 | 2023-10-24 | 国网山东省电力公司日照供电公司 | Error locking prevention fault monitoring and warning system for high-voltage switch cabinet |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106226584A (en) * | 2016-08-31 | 2016-12-14 | 贵州电网有限责任公司贵阳供电局 | It is applicable to electrical verification householder method and the device of different size central switch cabinet |
| CN106226584B (en) * | 2016-08-31 | 2023-09-12 | 贵州电网有限责任公司贵阳供电局 | Electricity inspection auxiliary method and device suitable for middle-set switch cabinets with different specifications |
| CN106972489A (en) * | 2017-05-16 | 2017-07-21 | 国网山东省电力公司菏泽供电公司 | The positive and negative two-way anti-misoperation system of ring network power supply |
| CN107069719A (en) * | 2017-05-16 | 2017-08-18 | 华电北瑞电气(北京)有限公司 | A kind of ring network power supply anti-misoperation system |
| CN107069719B (en) * | 2017-05-16 | 2024-02-13 | 华电北瑞电气(北京)有限公司 | Looped network power supply misoperation prevention system |
| CN106972489B (en) * | 2017-05-16 | 2023-10-27 | 国网山东省电力公司菏泽供电公司 | Forward and reverse looped network power supply bidirectional misoperation prevention system |
| CN108469758A (en) * | 2018-01-30 | 2018-08-31 | 国网浙江省电力公司宁波供电公司 | A kind of switchgear anti-misoperation locking control system based on electromagnetic induction |
| CN108629879A (en) * | 2018-06-08 | 2018-10-09 | 广东电网有限责任公司 | A kind of dual tripper of switchgear anti-misoperation |
| CN109300718B (en) * | 2018-09-13 | 2019-10-11 | 广东求精电气有限公司 | A kind of switchgear anti-misoperation locking device |
| CN109300718A (en) * | 2018-09-13 | 2019-02-01 | 广东求精电气有限公司 | A kind of switchgear anti-misoperation locking device |
| CN110010404B (en) * | 2019-05-15 | 2023-09-29 | 江苏洛凯机电股份有限公司 | High-voltage electrified locking device |
| CN110010404A (en) * | 2019-05-15 | 2019-07-12 | 江苏洛云电力科技有限公司 | High-voltage electrified locking device |
| CN110242105B (en) * | 2019-05-30 | 2021-05-04 | 国网山东省电力公司莱州市供电公司 | Multifunctional transformer substation five-prevention lock |
| CN110242105A (en) * | 2019-05-30 | 2019-09-17 | 国网山东省电力公司莱州市供电公司 | Multi-functional substation five is anti-lock |
| CN116935600A (en) * | 2023-09-18 | 2023-10-24 | 国网山东省电力公司日照供电公司 | Error locking prevention fault monitoring and warning system for high-voltage switch cabinet |
| CN116935600B (en) * | 2023-09-18 | 2023-11-28 | 国网山东省电力公司日照供电公司 | Error locking prevention fault monitoring and warning system for high-voltage switch cabinet |
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