CN202534963U - Structure preventing incorrect operation of high-voltage metering handcart - Google Patents
Structure preventing incorrect operation of high-voltage metering handcart Download PDFInfo
- Publication number
- CN202534963U CN202534963U CN2012200298750U CN201220029875U CN202534963U CN 202534963 U CN202534963 U CN 202534963U CN 2012200298750 U CN2012200298750 U CN 2012200298750U CN 201220029875 U CN201220029875 U CN 201220029875U CN 202534963 U CN202534963 U CN 202534963U
- Authority
- CN
- China
- Prior art keywords
- high pressure
- handcart
- pressure measurement
- circuit breaker
- closing coil
- 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.)
- Expired - Lifetime
Links
- 238000009530 blood pressure measurement Methods 0.000 claims description 49
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a structure preventing incorrect operations of a high-voltage metering handcart. The structure preventing the incorrect operations of the high-voltage metering handcart includes a wire inlet cabinet and the high-voltage metering handcart in a metering cabinet. A wire inlet circuit breaker, a closing coil and a closing coil switch are arranged in the wire inlet cabinet. A locking electromagnet is arranged in the high-voltage metering handcart. One end of the locking electromagnet is connected to one end of one pair of normally closed auxiliary contacts of the wire inlet circuit breaker while the other end of the locking electromagnet and the other end of the pair of the normally closed auxiliary contacts connect with an external power source respectively. Before the wire inlet circuit breaker is closed for switching on, the high-voltage metering handcart needs to be sent to a working station. After the closing coil switch is closed, the high-voltage metering handcart can not work because of locking. When cutting off the power connection, the wire inlet circuit breaker needs to be opened. Only when the wire inlet circuit breaker is in a switching-off state, the high-voltage metering handcart can be operated, thereby realizing an aim of preventing the false operations of the high-voltage metering handcart and guaranteeing the safety of person and property, avoiding major safety accidents, and improving the safety and reliability of power supply.
Description
Technical field
The utility model relates to the protection structure in a kind of distribution system, is the structure that prevents the misoperation of high pressure measurement handcart concretely.
Background technology
When the distribution system to some industrial enterprise and some buildings designs, can adopt the mode of high pressure measurement to supply power usually at present.The handcart metering is mainly used in the metal armouring formula high-tension switch cabinet as a kind of mode of high pressure measurement.When system normally moved, the high pressure measurement handcart was in the service position.Basic structure is as shown in Figure 1:
QF1 is a lead-in circuit breaker, and QF2 and QF3 are respectively the outlet circuit breaker, and CT is the high pressure measurement handcart.This system send electric operational procedure to be, breaks off lead-in circuit breaker QF1 and outlet circuit breaker Q F2, QF3, and CT shakes into working position with the high pressure measurement handcart, and the lead-in circuit breaker QF1 that closes again can close outlet circuit breaker Q F2, QF3 at last.When the system failure was overhauled, power operation rules and said procedure were opposite.
To above operating process, require operating personnel strict rules to operate, some carelessness can not be arranged.Yet in the reality often since operating personnel's ability to work or working experience relatively a little less than because carelessness, cause on-load misoperation high pressure measurement handcart and cause burning apparatus even cause casualties.This has just reduced the fail safe and the reliability of power supply.Prevent some security incidents though in legacy system, can interlock, can not the operation of high pressure measurement handcart be control effectively, therefore the situation of misoperation still might take place through handcart service position and breaker closing loop.
The utility model content
The utility model provides a kind of structure that prevents the misoperation of high pressure measurement handcart, prevents on-load operate high pressure metering handcart, ensures the safety and the generation of avoiding many serious accidents of personal property, improves the fail safe and the reliability of power supply.
The utility model prevents the structure of high pressure measurement handcart misoperation; Comprise the high pressure measurement handcart in incoming line cabinet and the metering cabinet; In incoming line cabinet, be provided with lead-in circuit breaker and control closing coil and the closing coil switch that said lead-in circuit breaker is opened/closed; In described high pressure measurement handcart, be provided with latching electromagnet; One end of said latching electromagnet is connected to an end of the wherein a pair of normally closed auxiliary contact of lead-in circuit breaker, and the other end of latching electromagnet is connected with external power supply respectively with the other end of said normally closed auxiliary contact.
Latching electromagnet is arranged in the high pressure measurement handcart, is mainly used in lock operation mechanism.Its principle is for after providing a working power when the coil of giving latching electromagnet, and the operating mechanism release can be operated.When the power supply disappearance, the operating mechanism locking can't be operated.Through latching electromagnet is connected with the normally closed auxiliary contact of lead-in circuit breaker; Guaranteed only with the punishment lock state that opens circuit when inlet wire; The high pressure measurement handcart just can be operated, and has guaranteed that so also the high pressure measurement handcart can not guarantee fail safe in the situation operation of on-load.
Further; One end of the wherein a pair of service position auxiliary contact of high pressure measurement handcart is connected to the closing coil of lead-in circuit breaker; The other end of service position auxiliary contact was connected with the normal battle of said closing coil switch, and the other end of closing coil switch and the other end of closing coil are connected to external power supply respectively.The further like this lead-in circuit breaker that guaranteed could close a floodgate in the work of high pressure measurement handcart, has guaranteed the standardization and the correctness of operating process.
Concrete, the other end of closing coil switch connects the positive pole of external 220V power supply, and the other end of closing coil connects the negative pole of external 200V power supply.
Concrete, the other end of the latching electromagnet in the said high pressure measurement handcart is connected with external live wire, and the other end of said normally closed auxiliary contact is connected with external zero line.
The utility model prevents the structure of high pressure measurement handcart misoperation, when operating personnel close before lead-in circuit breaker send electricity, needs the high pressure measurement handcart is shaken into the service position and can operate.When the closing coil switch closes, when the high pressure measurement handcart is in the service position, the locking of high pressure measurement this moment handcart, so the high pressure measurement handcart can't be operated.As to carry out power operation; Need lead-in circuit breaker is broken off; When lead-in circuit breaker was in the separating brake position, the high pressure measurement handcart can be operated, and so just played the purpose that prevents the misoperation of high pressure measurement handcart; Ensure the safety and the generation of avoiding many serious accidents of personal property, improved the fail safe and the reliability of power supply.
Below in conjunction with embodiment, the foregoing of the utility model is remake further detailed description by the accompanying drawing illustrated embodiment.But should this be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following instance.Do not breaking away under the above-mentioned technological thought situation of the utility model, various replacements or change according to ordinary skill knowledge and customary means are made all should be included in the scope of the utility model.
Description of drawings
Fig. 1 is the sketch map of metering high voltage supply system.
Fig. 2 is the metering cabinet locked loop sketch map that the utility model prevents the misoperation of high pressure measurement handcart.
Fig. 3 is the incoming line cabinet closing circuit sketch map that the utility model prevents the misoperation of high pressure measurement handcart.
Embodiment
The structure that prevents the misoperation of high pressure measurement handcart of the utility model as shown in Figure 1; Comprise the high pressure measurement handcart CT in incoming line cabinet and the metering cabinet, in incoming line cabinet, be provided with outlet circuit breaker Q F2 and QF3, lead-in circuit breaker QF1 and control closing coil and the closing coil switch that said incoming line cabinet circuit breaker is opened/closed.
As shown in Figure 2; In described high pressure measurement handcart CT, be provided with latching electromagnet Y0; 46 ends of said latching electromagnet Y0 are connected to 22 ends of the wherein a pair of normally closed auxiliary contact QF of lead-in circuit breaker QF1; 45 ends of latching electromagnet Y0 be connected with external live wire L, 23 ends of said normally closed auxiliary contact QF are connected with external zero line N.Through latching electromagnet Y0 is connected with the normally closed auxiliary contact QF of lead-in circuit breaker QF1; Guaranteed only with the punishment lock state that opens circuit when inlet wire; High pressure measurement handcart CT just can operate, and has guaranteed that so also high pressure measurement handcart CT can not guarantee fail safe in the situation operation of on-load.
As shown in Figure 3; 11 ends of the wherein a pair of service position auxiliary contact CT1 of high pressure measurement handcart CT are connected to 4 ends of the closing coil QF4 of lead-in circuit breaker QF1; 51 ends of service position auxiliary contact CT1 were connected with the normal battle 14 of said closing coil switch S B2; 11 ends of closing coil switch S B2 connect the positive pole of external 220V power supply, and 14 ends of WC+ closing coil QF4 connect the negative pole WC-of external 200V power supply.The further like this lead-in circuit breaker QF1 that guaranteed could close a floodgate in high pressure measurement handcart CT work, has guaranteed the standardization and the correctness of operating process.
When operating personnel close before lead-in circuit breaker QF1 send electricity, need high pressure measurement handcart CT is shaken into the service position and can operate.B2 closes when the closing coil switch S, when high pressure measurement handcart CT is in the service position, and high pressure measurement this moment handcart CT locking, so high pressure measurement handcart CT can't operate.As to carry out power operation, and need lead-in circuit breaker QF1 is broken off, when lead-in circuit breaker QF1 was in the separating brake position, high pressure measurement handcart CT can operate, just play the purpose that prevents high pressure measurement handcart CT misoperation like this.
Claims (4)
1. prevent the structure of high pressure measurement handcart misoperation; Comprise the high pressure measurement handcart in incoming line cabinet and the metering cabinet; In incoming line cabinet, be provided with lead-in circuit breaker and control closing coil and the closing coil switch that said lead-in circuit breaker is opened/closed; It is characterized by: in described high pressure measurement handcart, be provided with latching electromagnet; One end of said latching electromagnet is connected to an end of the wherein a pair of normally closed auxiliary contact of lead-in circuit breaker, and the other end of latching electromagnet is connected with external power supply respectively with the other end of said normally closed auxiliary contact.
2. the structure that prevents the misoperation of high pressure measurement handcart as claimed in claim 1; It is characterized by: the closing coil that an end of the wherein a pair of service position auxiliary contact of high pressure measurement handcart is connected to lead-in circuit breaker; The other end of service position auxiliary contact was connected with the normal battle of said closing coil switch, and the other end of closing coil switch and the other end of closing coil are connected to external power supply respectively.
3. the structure that prevents the misoperation of high pressure measurement handcart as claimed in claim 2 is characterized by: the other end of closing coil switch connects the positive pole of external 220V power supply, and the other end of closing coil connects the negative pole of external 200V power supply.
4. like the described structure that prevents the misoperation of high pressure measurement handcart of one of claim 1 to 3, it is characterized by: the other end of the latching electromagnet in the said high pressure measurement handcart is connected with external live wire, and the other end of said normally closed auxiliary contact is connected with external zero line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200298750U CN202534963U (en) | 2012-01-30 | 2012-01-30 | Structure preventing incorrect operation of high-voltage metering handcart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200298750U CN202534963U (en) | 2012-01-30 | 2012-01-30 | Structure preventing incorrect operation of high-voltage metering handcart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534963U true CN202534963U (en) | 2012-11-14 |
Family
ID=47136121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200298750U Expired - Lifetime CN202534963U (en) | 2012-01-30 | 2012-01-30 | Structure preventing incorrect operation of high-voltage metering handcart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534963U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684847A (en) * | 2016-11-24 | 2017-05-17 | 国家电网公司 | Circuit for preventing latching electromagnet from burning out |
| CN111129972A (en) * | 2019-12-30 | 2020-05-08 | 国网山东省电力公司淄博供电公司 | Anti-misoperation locking device for high-voltage cabinet door of box-type substation |
-
2012
- 2012-01-30 CN CN2012200298750U patent/CN202534963U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684847A (en) * | 2016-11-24 | 2017-05-17 | 国家电网公司 | Circuit for preventing latching electromagnet from burning out |
| CN111129972A (en) * | 2019-12-30 | 2020-05-08 | 国网山东省电力公司淄博供电公司 | Anti-misoperation locking device for high-voltage cabinet door of box-type substation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205039091U (en) | Isolator behaviour moves mechanism controls protection return circuit | |
| CN204927108U (en) | Dual blocking device of high tension switchgear | |
| CN104821557A (en) | Control loop of breaker operation box | |
| CN202534963U (en) | Structure preventing incorrect operation of high-voltage metering handcart | |
| CN204740981U (en) | Electrically -operated interlocking device | |
| CN204230110U (en) | With the control circuit of high-voltage circuit breaker of locking link | |
| CN206283258U (en) | A kind of contact of two inlet wire one shutting-brake control electrical structure and power distribution equipment | |
| CN109192569A (en) | A kind of control method being latched between three station grounding switch and breaker open operation | |
| CN208352720U (en) | A kind of control circuit and transformer substation system for preventing from accidentally closing high side switch when maintenance | |
| CN203747276U (en) | Apparatus used for preventing low voltage power distribution cabinet from operating misoperation | |
| CN207319960U (en) | A kind of bus connection switch interlock control circuit and mother system | |
| CN205723317U (en) | A kind of SF preventing Burnout of Closing Coil6spring mechanism of circuit breaker shutting-brake control loop | |
| CN201868270U (en) | Electric control disconnector operating mechanism latching circuit | |
| CN208257244U (en) | The protection exclusive circuit and low-voltage distribution cabinet of electrically operated institution | |
| CN102593730A (en) | Safety protection system for cabinet doors of dry-type transformer | |
| CN206076925U (en) | Secondary circuit of transformer protection interlocking cutting generator matched line | |
| CN203398521U (en) | High-voltage ring network switch cabinet | |
| CN203205349U (en) | Vacuum contactor closing loop | |
| CN205542481U (en) | Sword melts switch with electricly prevent maloperation | |
| CN206850416U (en) | Prevent the circuit that latching electromagnet is burnt out | |
| CN201269980Y (en) | Secondary control circuit for dual safe chain | |
| CN204651233U (en) | A kind of misoperation prevention isolating switch | |
| CN201323444Y (en) | Improved control circuit of recloser | |
| CN108631162A (en) | Prevent maintenance mistiming from closing the control circuit and transformer substation system of high side switch | |
| CN202772029U (en) | Isolating switch mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Structure preventing incorrect operation of high-voltage metering handcart Effective date of registration: 20131224 Granted publication date: 20121114 Pledgee: Leshan City Commercial Bank Limited by Share Ltd Sales Department Pledgor: Leshan Chengjia Electric Co., Ltd. Registration number: 2013990001021 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 614000 No. 3, west section of Lego Road, Leshan hi tech Development Zone, Sichuan Patentee after: Leshan Shengjia Electric Co., Ltd. Address before: 614000 No. 3, west section of Lego Road, Leshan hi tech Development Zone, Sichuan Patentee before: Leshan Chengjia Electric Co., Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160309 Granted publication date: 20121114 Pledgee: Leshan City Commercial Bank Limited by Share Ltd Sales Department Pledgor: Leshan Shengjia Electric Co., Ltd. Registration number: 2013990001021 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Structure preventing incorrect operation of high-voltage metering handcart Effective date of registration: 20160309 Granted publication date: 20121114 Pledgee: Leshan City Commercial Bank Limited by Share Ltd Sales Department Pledgor: Leshan Shengjia Electric Co., Ltd. Registration number: 2016990000187 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20160309 Registration number: 2013990001021 Pledgor after: Leshan Shengjia Electric Co., Ltd. Pledgor before: Leshan Chengjia Electric Co., Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170718 Granted publication date: 20121114 Pledgee: Leshan City Commercial Bank Limited by Share Ltd Sales Department Pledgor: Leshan Shengjia Electric Co., Ltd. Registration number: 2016990000187 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Structure preventing incorrect operation of high-voltage metering handcart Effective date of registration: 20170801 Granted publication date: 20121114 Pledgee: Leshan City Commercial Bank Limited by Share Ltd Sales Department Pledgor: Leshan Shengjia Electric Co., Ltd. Registration number: 2017510000043 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |
|
| CX01 | Expiry of patent term |