CN109830393A - A kind of disconnecting switch divide-shut brake method for confirming operation - Google Patents
A kind of disconnecting switch divide-shut brake method for confirming operation Download PDFInfo
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- CN109830393A CN109830393A CN201910226559.9A CN201910226559A CN109830393A CN 109830393 A CN109830393 A CN 109830393A CN 201910226559 A CN201910226559 A CN 201910226559A CN 109830393 A CN109830393 A CN 109830393A
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- disconnecting switch
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Abstract
The present invention relates to a kind of disconnecting switch divide-shut brake method for confirming operation, include the following steps: to install double confirmation systems in disconnecting switch；The auxiliary switch node location remote signaling function being had by disconnecting switch itself judges the division gate position of disconnecting switch；Judged by division gate position of the attitude transducer to disconnecting switch, and divide-shut brake signal is transferred to reception device；If the remote signalling of disconnecting switch position is by closing variation, and the signal that reception device receives is separating brake signal in place, then separating brake in place, closes disconnecting switch if the remote signalling of disconnecting switch position is become by point, and the signal that receives of reception device is in-place closing signal, then disconnecting switch in-place closing.The present invention has the advantages that utilizing the auxiliary switch node location remote signaling function of disconnecting switch itself and the cooperation of attitude transducer, two step confirmations are carried out to the division gate position of disconnecting switch, the accuracy for ensuring disconnecting switch division gate position avoids the erroneous judgement to disconnecting switch position.
Description
Technical field
The present invention relates to disconnecting switch field, disconnecting switch divide-shut brake method for confirming operation in specifically one.
Background technique
Disconnecting switch (Isolating switch) be one kind be mainly used for " isolated power supply, grid switching operation, being connected to and
Cut off low current circuit ", the switching device of no arc-suppression function.Disconnecting switch has between contact when quartile is set and meets prescribed requirement
Insulation distance and apparent disconnect mark；When coincidence is set, electric current under normal loop condition can be carried and in the stipulated time
The switchgear of electric current under interior exceptional condition (such as short circuit).Be typically used as high voltage isolator, i.e., voltage rating 1kV with
On disconnecting switch, the principles and structure of itself is fairly simple, but since usage amount is big, functional reliability requirement
Height, it is larger to the design of electric substation, power plant, foundation and the influence of safe operation.
Currently, Guo Wang company expert proposes the advanced technologies such as substation " key " sequence operation, and issue " state's net transport inspection department
About the notice for printing and distributing one key sequence renovation technique specification of substation ", " studying and apply substation " key, " sequence operation etc. is first
Into technology " it is classified as major tasks, it is desirable that accelerate research and applies " key " sequence operation advanced technology and third generation intelligent substation
Technical specification is listed as state's net major tasks.
State's net third generation intelligent station has the function of a key operation, automatic detecting, active forewarning, intelligent decision etc., is to biography
System substation, first generation intelligent station and New Generation of Intelligent station are summarized from various aspects such as design, manufacture, construction, fortune inspections, are inherited
Advantage promotes deficiency, and new technology is combined the intelligent substation to face the future with substation and power transformation fortune inspection work.
For propulsion " key " sequence technical application, ensure that Reconstruction in field work safety specification is carried out, according to " national grid is public
Take charge of electric power safety working regulation (power transformation part) " (Q/GDW1799.1 2013) " at least there are two non-same principles or non-homogeneous
Instruction corresponding variation occurs simultaneously, can confirm that equipment has operated in place " regulation, state's net transport inspection department tissue worked out isolation
Switch division gate position " double confirmations " renovation technique specification.
A kind of monitoring device is also referred in patent CN202794455U, especially a kind of disconnecting switch in-place closing prison
Device is surveyed, it includes angular displacement sensor and data processing equipment that structural feature, which is, and angular displacement sensor includes rotation
Component and fixation member, wherein the outer housing of fixation member is fixedly connected by fastener with isolated switchgear, rotatable parts
It is connect with the shaft end of the rotation execution unit of disconnecting switch.The advantage is that using the disconnecting switch based on angular displacement sensor
In-place closing monitoring device provides second monitoring information for substation's remote control operation, and the monitoring device can not only
The effectively successful in-place closing of confirmation disconnecting switch, and reduce artificial live cooperating amount when operation, structure is simple,
It is easy to operate.
But above-mentioned this monitoring device still have the defects that it is certain: this kind of monitoring device is to apply be isolated
On switch, and disconnecting switch itself is to belong to high voltage, high current product, and angular displacement sensor is also to belong to electronic product
, therefore, carrying out being easy for the influence by heavy current during signal transmission, the number that causes angular displacement sensor to transmit
According to inaccuracy, and then influence the confirmation of disconnecting switch divide-shut brake in place.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of reduction electric currents to influence sensor, it is ensured that double confirmation operations
Disconnecting switch divide-shut brake method for confirming operation.
In order to solve the above technical problems, the technical solution of the present invention is as follows: a kind of disconnecting switch divide-shut brake method for confirming operation,
Disconnecting switch includes the column of a horizontally disposed pedestal and a pair of of support base, is equipped on pedestal mutually matched dynamic
Contact and static contact, the moving contact drive the divide-shut brake realized with static contact by transmission crank arm, and innovative point is: divide-shut brake
Confirmation method includes the following steps
S1: double confirmation system installations: firstly, installing double confirmation systems in disconnecting switch, double confirmation systems include two
Secondary confirmation component, the secondary-confirmation component include that attitude transducer, reception device and connection attitude transducer and reception fill
The signal transmssion line set, wherein attitude transducer is mounted on side of the transmission crank arm close to moving contact, and reception device is mounted on vertical
On column；Component is protected, the protection component includes the metallic shield hose being sleeved on the outside of signal transmssion line, is sleeved on posture biography
Metal shielding shell on the outside of sensor, and it is sleeved on the shielding case on the outside of reception device；
S2: disconnecting switch divide-shut brake confirms for the first time: the auxiliary switch node location remote signaling function pair being had by disconnecting switch itself
The division gate position of disconnecting switch is judged, if disconnecting switch quartile node closure and the disconnection of coincidence node, disconnecting switch
Position remote signalling is by closing variation, if disconnecting switch quartile node disconnects and coincidence node is closed, the remote signalling of disconnecting switch position is by dividing
Become and closes；
S3: disconnecting switch divide-shut brake secondary-confirmation: being judged by division gate position of the attitude transducer to disconnecting switch, and
Divide-shut brake signal is transferred to reception device；
S4: disconnecting switch position analysis confirmation: if the remote signalling of disconnecting switch position is by closing variation, and the posture that reception device receives
The signal of sensor transmissions is separating brake signal in place, then illustrate disconnecting switch separating brake in place, if the remote signalling of disconnecting switch position by
Point become close, and reception device receive attitude transducer transmission signal be in-place closing signal, then illustrated disconnecting switch
In-place closing.
Further, the secondary-confirmation of the attitude transducer specifically: firstly, attitude transducer is pacified in disconnecting switch
It is demarcated after dress, calibration separating brake is 0 ° in place, then, then disconnecting switch operation n times, n >=3, measurement separating brake is to positioned at combined floodgate
Angle value θ i between in place, is averaging and obtains angle value, referred to as rated value θ between divide-shut brake, and separating brake is arranged in θ=1/n ∑ θ i
Discrimination threshold α in place, in-place closing discrimination threshold β, after calibration, attitude transducer carries out normal operating conditions, then posture senses
Device meets following require:
When disconnecting switch operation sub-switching operation, if separating brake actual angle is γ, no matter when, attitude transducer should provide as follows
Differentiate: as-α≤γ≤+ α, attitude transducer provides separating brake signal in place, as γ <-α or γ >+α, attitude transducer
Provide separating brake abnormal signal；
When disconnecting switch operation closing operation, if combined floodgate actual angle is γ, no matter when, attitude transducer should provide as follows
Differentiate: as θ-β≤γ≤θ+β, attitude transducer provides in-place closing signal, and as γ < θ-β or γ > θ+β, posture is passed
Sensor provides combined floodgate abnormal signal.
Further, the attitude transducer includes high accuracy gyroscope instrument, accelerometer, magnetometer and microprocessor.
Further, the metallic shield hose is mounted on pedestal and column by plastics guide sleeve pipe, is led in plastics
Have into casing and hold the cavity that metallic shield hose passes through, the plastics guide sleeve pipe is fixed on pedestal and column by anchor ear
On.
The present invention has the advantages that disconnecting switch divide-shut brake method for confirming operation of the invention, utilizes disconnecting switch itself
Auxiliary switch node location remote signaling function and attitude transducer cooperation, two steps are carried out to the division gate position of disconnecting switch
Confirmation, it is ensured that the accuracy of disconnecting switch division gate position avoids the erroneous judgement to disconnecting switch position.
By protecting the setting of component, heavy current is reduced using the setting of Metal shielding shell and shielding case, posture is passed
The influence of sensor and receiving device, it is ensured that it is used normal, improves its service life, and metallic shield hose is recycled to realize
Shielding to the electric current of signal transmssion line reduces the influence of electric current, it is ensured that signal transmits normal, guarantees the accurate of secondary-confirmation
Property.
By the way that plastics guide sleeve pipe is arranged in the outside of metallic shield hose, first is that facilitate the installation of metallic shield hose,
Second is that reducing the contact between pedestal, column of metallic shield hose, reducing influences.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the schematic diagram of disconnecting switch divide-shut brake confirming operation system of the invention.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
A kind of disconnecting switch as shown in Figure 1, the column including a horizontally disposed pedestal 4 and a pair of of support base 4
5, mutually matched moving contact and static contact are installed on pedestal 4, moving contact is driven by transmission crank arm 7 to be realized and static contact
Divide-shut brake, transmission crank arm 7 are driven the breaking-closing operating for realizing moving contact and static contact by the operating mechanism 8 being mounted on column 5.
Double confirmation systems include
Secondary-confirmation component, secondary-confirmation component include attitude transducer 1, reception device 3 and connect attitude transducer 1 and connect
The signal transmssion line 2 of receiving apparatus 3, wherein attitude transducer 1 is mounted on transmission crank arm 7 close to the side of moving contact, reception device
1 is mounted on column 5, and is mounted on same root post 5 with operating mechanism 8.
Attitude transducer 1 includes high accuracy gyroscope instrument, accelerometer, magnetometer and microprocessor.
Component is protected, protection component includes the metallic shield hose for being sleeved on 2 outside of signal transmssion line, is sleeved on posture biography
The Metal shielding shell in 1 outside of sensor, and it is sleeved on the shielding case in 3 outside of reception device.By protecting the setting of component, benefit
Influence of the heavy current to attitude transducer 1 and receiving device 3 is reduced with the setting of Metal shielding shell and shielding case, it is ensured that its
What is used is normal, improves its service life, recycles metallic shield hose to realize the shielding of the electric current to signal transmssion line 2,
Reduce the influence of electric current, it is ensured that signal transmits normal, guarantees the accuracy of secondary-confirmation.
Metallic shield hose is mounted on pedestal 4 and column 5 by plastics guide sleeve pipe, is had in plastics guide sleeve pipe
Hold the cavity that metallic shield hose passes through, plastics guide sleeve pipe is fixed on pedestal 4 and column 5 by anchor ear.By in metal
Plastics guide sleeve pipe is arranged in the outside for shielding hose, first is that facilitating the installation of metallic shield hose, second is that it is soft to reduce metallic shield
The contact between pedestal, column is managed, reducing influences.
Disconnecting switch divide-shut brake method for confirming operation of the invention is achieved by following step:
Step 1: double confirmation system installations: firstly, installing double confirmation systems in disconnecting switch.
Step 2: disconnecting switch divide-shut brake confirms for the first time: the auxiliary switch node location being had by disconnecting switch itself is distant
Telecommunication function judges the division gate position of disconnecting switch, if disconnecting switch quartile node closure and the disconnection of coincidence node,
The remote signalling of disconnecting switch position is by closing variation, if disconnecting switch quartile node disconnects and coincidence node is closed, disconnecting switch position
Remote signalling is become by point closes.
Step 3: disconnecting switch divide-shut brake secondary-confirmation: by attitude transducer to the division gate position of disconnecting switch into
Row judgement, and divide-shut brake signal is transferred to reception device.
The secondary-confirmation of attitude transducer specifically: firstly, attitude transducer is demarcated after installing in disconnecting switch,
Demarcate separating brake is 0 ° in place, then, then disconnecting switch operation n times, n >=3, measurement separating brake to the angle between in-place closing
Value θ i is averaging and obtains angle value, referred to as rated value θ between divide-shut brake, and separating brake discrimination threshold α in place is arranged in θ=1/n ∑ θ i,
In-place closing discrimination threshold β, after calibration, attitude transducer carries out normal operating conditions, then attitude transducer meets following require:
When disconnecting switch operation sub-switching operation, if separating brake actual angle is γ, no matter when, attitude transducer should provide as follows
Differentiate: as-α≤γ≤+ α, attitude transducer provides separating brake signal in place, as γ <-α or γ >+α, attitude transducer
Provide separating brake abnormal signal；
When disconnecting switch operation closing operation, if combined floodgate actual angle is γ, no matter when, attitude transducer should provide as follows
Differentiate: as θ-β≤γ≤θ+β, attitude transducer provides in-place closing signal, and as γ < θ-β or γ > θ+β, posture is passed
Sensor provides combined floodgate abnormal signal.
S4: disconnecting switch position analysis confirmation: if disconnecting switch position remote signalling, by closing variation, and reception device receives
The signal of attitude transducer transmission is separating brake signal in place, then illustrate disconnecting switch separating brake in place, if disconnecting switch position is distant
Letter by point become close, and reception device receive attitude transducer transmission signal be in-place closing signal, then explanation keep apart
Close in-place closing.
Disconnecting switch divide-shut brake method for confirming operation of the invention, utilizes the auxiliary switch node location of disconnecting switch itself
The cooperation of remote signaling function and attitude transducer carries out two step confirmations to the division gate position of disconnecting switch, it is ensured that disconnecting switch
The accuracy of division gate position avoids the erroneous judgement to disconnecting switch position.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
It is merely illustrated the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
It is defined by the appending claims and its equivalent thereof.
Claims (4)
1. a kind of disconnecting switch divide-shut brake method for confirming operation, disconnecting switch includes a horizontally disposed pedestal and a pair of of support
The column of pedestal, is equipped with mutually matched moving contact and static contact on pedestal, and the moving contact is driven real by transmission crank arm
Now with the divide-shut brake of static contact, it is characterised in that: divide-shut brake confirmation method includes the following steps
S1: double confirmation system installations: firstly, installing double confirmation systems in disconnecting switch, double confirmation systems include two
Secondary confirmation component, the secondary-confirmation component include that attitude transducer, reception device and connection attitude transducer and reception fill
The signal transmssion line set, wherein attitude transducer is mounted on side of the transmission crank arm close to moving contact, and reception device is mounted on vertical
On column；Component is protected, the protection component includes the metallic shield hose being sleeved on the outside of signal transmssion line, is sleeved on posture biography
Metal shielding shell on the outside of sensor, and it is sleeved on the shielding case on the outside of reception device；
S2: disconnecting switch divide-shut brake confirms for the first time: the auxiliary switch node location remote signaling function pair being had by disconnecting switch itself
The division gate position of disconnecting switch is judged, if disconnecting switch quartile node closure and the disconnection of coincidence node, disconnecting switch
Position remote signalling is by closing variation, if disconnecting switch quartile node disconnects and coincidence node is closed, the remote signalling of disconnecting switch position is by dividing
Become and closes；
S3: disconnecting switch divide-shut brake secondary-confirmation: being judged by division gate position of the attitude transducer to disconnecting switch, and
Divide-shut brake signal is transferred to reception device；
S4: disconnecting switch position analysis confirmation: if the remote signalling of disconnecting switch position is by closing variation, and the posture that reception device receives
The signal of sensor transmissions is separating brake signal in place, then illustrate disconnecting switch separating brake in place, if the remote signalling of disconnecting switch position by
Point become close, and reception device receive attitude transducer transmission signal be in-place closing signal, then illustrated disconnecting switch
In-place closing.
2. disconnecting switch divide-shut brake method for confirming operation according to claim 1, it is characterised in that: the attitude transducer
Secondary-confirmation specifically: firstly, attitude transducer is demarcated after installing in disconnecting switch, calibration separating brake is 0 ° in place,
Then, then disconnecting switch operation n times, n >=3, measurement separating brake to the angle value θ i between in-place closing are averaging acquirement point
Separating brake discrimination threshold α, in-place closing discrimination threshold β in place is arranged in angle value between combined floodgate, referred to as rated value θ, θ=1/n ∑ θ i,
After calibration, attitude transducer carries out normal operating conditions, then attitude transducer meets following require:
When disconnecting switch operation sub-switching operation, if separating brake actual angle is γ, no matter when, attitude transducer should provide as follows
Differentiate: as-α≤γ≤+ α, attitude transducer provides separating brake signal in place, as γ <-α or γ >+α, attitude transducer
Provide separating brake abnormal signal；
When disconnecting switch operation closing operation, if combined floodgate actual angle is γ, no matter when, attitude transducer should provide as follows
Differentiate: as θ-β≤γ≤θ+β, attitude transducer provides in-place closing signal, and as γ < θ-β or γ > θ+β, posture is passed
Sensor provides combined floodgate abnormal signal.
3. disconnecting switch divide-shut brake method for confirming operation according to claim 1, it is characterised in that: the attitude transducer
Including high accuracy gyroscope instrument, accelerometer, magnetometer and microprocessor.
4. disconnecting switch divide-shut brake method for confirming operation according to claim 1, it is characterised in that: the metallic shield is soft
Pipe is mounted on pedestal and column by plastics guide sleeve pipe, is had in plastics guide sleeve pipe and is held what metallic shield hose passed through
Cavity, the plastics guide sleeve pipe are fixed on pedestal and column by anchor ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910226559.9A CN109830393A (en) | 2019-03-25 | 2019-03-25 | A kind of disconnecting switch divide-shut brake method for confirming operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910226559.9A CN109830393A (en) | 2019-03-25 | 2019-03-25 | A kind of disconnecting switch divide-shut brake method for confirming operation |
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| CN109830393A true CN109830393A (en) | 2019-05-31 |
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| CN201910226559.9A Pending CN109830393A (en) | 2019-03-25 | 2019-03-25 | A kind of disconnecting switch divide-shut brake method for confirming operation |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174613A (en) * | 2019-06-21 | 2019-08-27 | 国网西藏电力有限公司拉萨供电公司 | A kind of state monitoring apparatus and method of disconnecting switch |
| CN110632504A (en) * | 2019-08-07 | 2019-12-31 | 常州爱特科技股份有限公司 | Isolator attitude monitoring method |
| CN111981971A (en) * | 2020-07-16 | 2020-11-24 | 湖南长高高压开关集团股份公司 | Method and device for detecting switching-on and switching-off in-place of folding arm type isolating switch |
| CN112038132A (en) * | 2020-07-16 | 2020-12-04 | 湖南长高高压开关集团股份公司 | Method and device for detecting switching-on and switching-off in place of three-column horizontal rotary isolating switch |
| CN112820578A (en) * | 2021-01-22 | 2021-05-18 | 江苏省如高高压电器有限公司 | Fault identification method for multi-source action signal |
| CN113124855A (en) * | 2021-04-08 | 2021-07-16 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Isolating switch position monitoring system and method based on attitude sensor |
| CN113218357A (en) * | 2021-05-19 | 2021-08-06 | 广西电网有限责任公司电力科学研究院 | On-line monitoring system of high-voltage isolating switch |
| CN113932695A (en) * | 2021-11-09 | 2022-01-14 | 广东电网有限责任公司江门供电局 | Disconnecting link position confirmation sensor device based on magnetic induction technology |
| CN113936950A (en) * | 2021-10-28 | 2022-01-14 | 广东电网有限责任公司 | Method, device and system for determining state of three-station mechanism |
| CN114019361A (en) * | 2021-10-28 | 2022-02-08 | 广东电网有限责任公司 | Method and device for determining state of three-phase box-separated switch |
| CN114113995A (en) * | 2021-10-29 | 2022-03-01 | 河南平高电气股份有限公司 | Method and system for detecting mechanical fault of isolating switch for GIS |
| CN115116775A (en) * | 2022-08-29 | 2022-09-27 | 南京合智电力科技有限公司 | High-voltage switch position judgment method, device and equipment based on state machine |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174613A (en) * | 2019-06-21 | 2019-08-27 | 国网西藏电力有限公司拉萨供电公司 | A kind of state monitoring apparatus and method of disconnecting switch |
| CN110632504A (en) * | 2019-08-07 | 2019-12-31 | 常州爱特科技股份有限公司 | Isolator attitude monitoring method |
| CN111981971A (en) * | 2020-07-16 | 2020-11-24 | 湖南长高高压开关集团股份公司 | Method and device for detecting switching-on and switching-off in-place of folding arm type isolating switch |
| CN112038132A (en) * | 2020-07-16 | 2020-12-04 | 湖南长高高压开关集团股份公司 | Method and device for detecting switching-on and switching-off in place of three-column horizontal rotary isolating switch |
| CN112820578B (en) * | 2021-01-22 | 2024-05-28 | 江苏省如高高压电器有限公司 | Fault identification method for multi-source action signal |
| CN112820578A (en) * | 2021-01-22 | 2021-05-18 | 江苏省如高高压电器有限公司 | Fault identification method for multi-source action signal |
| CN113124855A (en) * | 2021-04-08 | 2021-07-16 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Isolating switch position monitoring system and method based on attitude sensor |
| CN113218357A (en) * | 2021-05-19 | 2021-08-06 | 广西电网有限责任公司电力科学研究院 | On-line monitoring system of high-voltage isolating switch |
| CN113936950A (en) * | 2021-10-28 | 2022-01-14 | 广东电网有限责任公司 | Method, device and system for determining state of three-station mechanism |
| CN114019361A (en) * | 2021-10-28 | 2022-02-08 | 广东电网有限责任公司 | Method and device for determining state of three-phase box-separated switch |
| CN114019361B (en) * | 2021-10-28 | 2023-05-26 | 广东电网有限责任公司 | Method and device for determining state of three-phase box-separating switch |
| CN114113995A (en) * | 2021-10-29 | 2022-03-01 | 河南平高电气股份有限公司 | Method and system for detecting mechanical fault of isolating switch for GIS |
| CN114113995B (en) * | 2021-10-29 | 2024-04-05 | 河南平高电气股份有限公司 | Method and system for detecting mechanical faults of isolating switch for GIS |
| CN113932695A (en) * | 2021-11-09 | 2022-01-14 | 广东电网有限责任公司江门供电局 | Disconnecting link position confirmation sensor device based on magnetic induction technology |
| CN115116775A (en) * | 2022-08-29 | 2022-09-27 | 南京合智电力科技有限公司 | High-voltage switch position judgment method, device and equipment based on state machine |
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