CN206195330U - Protection of intelligence breaker control circuit and monitoring devices - Google Patents
Protection of intelligence breaker control circuit and monitoring devices Download PDFInfo
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- CN206195330U CN206195330U CN201621116102.0U CN201621116102U CN206195330U CN 206195330 U CN206195330 U CN 206195330U CN 201621116102 U CN201621116102 U CN 201621116102U CN 206195330 U CN206195330 U CN 206195330U
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- breaker
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- control circuit
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Abstract
The utility model discloses a protection of intelligence breaker control circuit and monitoring devices belongs to breaker control circuit protection monitoring devices, but aim at providing one kind not only automatic switch -over breaker closing return circuit, but also can monitor circuit breaker running state's device in good time. It includes the switching -on holding circuit of closing coils auxiliary switch (1) and closing coils (2), and it has relay normally closed contact (11) to establish ties at closing coils auxiliary switch's (1) front end, and the front end of this relay normally closed contact has connect hall current sensor (10), this hall current sensor is connected with detection module (9), operation module (6), control module (7) and relay (8) order. The utility model discloses an external power supply does not cause any interference to former control circuit alone, break down or unsatisfied branchs / combined floodgate when requiring at the circuit breaker, the control circuit of changeable circuit breaker, the realization is to closing coils's protection.
Description
Technical field
The utility model is related to a kind of control circuit of high-voltage circuit breaker to protect and fault monitoring device, more particularly to a kind of base
In the intelligent breaker control loop protection of DSP and monitoring device.
Background technology
It is well known that primary cut-out is transformer station mechanically and electrically acts most frequent equipment, easily sent out in running
Give birth to fault rate and cause power grid accident.Its reason is that breaker may generating mechanism bite, machinery spy in actual moving process
Property do not reach requirement, auxiliary switch DL can not normally switch, breaker is refused point or refuse to close, so as to cause breaker cutting off and closing
Can not effectively extinguish electric arc when closing load current or fault current, cause switching overvoltage or make breaker that blast thing to occur
Therefore.In addition, because circuit breaker failure and caused by auxiliary switch be unable to correct operation, closing coil two ends are powered for a long time, cause close a floodgate
Coil scaling loss.3rd, current breaker is mostly safeguarded that not only workload is big, costly using periodic inspection mode, and
Easily cause " maintenance is not enough " or " maintenance is excessive "；It would therefore be highly desirable to develop it is a kind of can timely monitor the High Voltage Circuit Breaker Condition dress
Put, to improve the reliability of operation of power networks.
The content of the invention
For drawbacks described above present in prior art, the utility model aims to provide a kind of intelligent breaker control loop
Protection and monitoring device；The module can not only switch breaker control circuit when breaker breaks down, realize to point/
The protection of closing coil, and the operating mode of breaker can also be judged according to current parameters, realize fault data real-time storage and
Intelligent decision is carried out by decision-making experts database, so as to realize being transitioned into " repair based on condition of component " from " emergency repair ".
To achieve these goals, the utility model uses following technical scheme：It includes closing coil auxiliary
The combined floodgate holding circuit of switch and closing coil, relay normally closed contact is in series with the front end of closing coil auxiliary switch, should
The front end of relay normally closed contact is simultaneously connected to Hall current sensor；The Hall current sensor and detection module, computing module,
Control module and relay are linked in sequence.
Computing module passes sequentially through memory module, decision-making expert database module and is connected with communication module.
Compared with the prior art, the utility model is by adopting the above-described technical solution, using Hall current sensor reality
When Monitoring and Controlling loop current signal, electric current according to closing circuit diagnoses circuit breaker failure shape with the functional relation of time
State, therefore, it is possible to realize the protection to breaker control circuit by the break-make of control relay normally closed contact.This practicality is new
Type has advantages below：
1) due to only the normally closed contact of relay is series in closing circuit, therefore can guarantee that the closing circuit of breaker
Do not increase any resistance, any negative effect will not be produced to the operation voltage of breaker.
2) due to selecting the relay with connecting-disconnecting function, therefore the phenomenons such as contact adhesion or arcing have been prevented from source
Appearance, protective breaker nonserviceable under can smooth break, play a part of to protect closing coil.
3) sampled using Hall current sensor, it is ensured that the integrality of control cable, will not caused because the end of a thread epidermis
Trouble point that is damaged and causing the increase breaker such as DC earthing.
4) by analyzing the functional relation of switching current and time, and exported onto computer by communication module, therefore inspection
The personnel of repairing can clearly judge the running status of current breaker, service work has been transitioned into " state from " emergency repair "
Maintenance ", saves substantial amounts of human and material resources and financial resources.
The utility model is as a result of the control loop for being totally independent of breaker and employs independent circumscribed electricity
Source, therefore control loop to former breaker does not result in any interference；Even if there is exception in protection device, also will not be to open circuit
The normal operation of device is impacted, and greatly improves the power supply reliability of power network, reduces the grid power blackout time.
Brief description of the drawings
Fig. 1 is principle schematic diagram. of the present utility model.
In figure：Closing coil auxiliary switch 1, closing coil 2, decision-making expert database module 3, communication module 4, memory module 5,
Computing module 6, control module 7, relay 8, detection module 9, Hall current sensor 10, relay normally closed contact 11.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1：Closing coil auxiliary switch 1 is connected with closing coil 2, in the front end of closing coil auxiliary switch 1
Relay normally closed contact 11 is in series with, Hall current sensor 10 is terminated with before the relay normally closed contact；The Hall current
Sensor is linked in sequence with detection module 9, computing module 6, control module 7 and relay 8.
For the ease of the current signal in real-time inspection and control loop, diagnosis fault state of circuit breaker, computing module 6 leads to successively
Memory module 5, decision-making expert database module 3 is crossed to be connected with communication module 4.
Operation principle：The current signal that Hall current sensor 10 will be monitored switchs to data signal by detection module 9
After be transmitted to computing module 6, computing module intelligence judges current breaker state in which, and sends instructions to control
Module 7, relay 8 is acted and disconnects relay normally closed contact 11, and closing circuit is cut off, and realizes the protection of closing coil 2
Function；At the same time, the information of collection is stored in memory module 5 by computing module 6, and decision-making expert database module 4 passes through electric current/time
Quantity of state carrys out the state of monitoring breaker mechanism and coil.
When point/reclosing command assign after, if breaker point/closing time is apparently higher than breaker mechanic property defined
During the time, computing module 6 sends the instruction for disconnecting relay normally closed contact 11 to control module 7, so as to realize to closing coil 2
Protection；If Hall current sensor 10 monitor point/switching current apparently higher than normal division brake current when, computing module
6 send the instruction for disconnecting relay normally closed contact 11 to control module 7, so as to realize the protection to closing coil 2.
Result of calculation according to computing module 6 and monitoring parameter is introduced the methods such as decision-making experts database 4 and can judge
The operating condition of breaker, so as to realize that breaker is transitioned into " repair based on condition of component " from " emergency repair ".
Claims (2)
1. a kind of intelligent breaker control loop is protected and monitoring device, including is included closing coil auxiliary switch (1) and closed
The closing circuit of brake cable circle (2), it is characterised in that：It is in series with that relay is normally closed to be connect in the front end of closing coil auxiliary switch (1)
Point (11), the front end of the relay normally closed contact is simultaneously connected to Hall current sensor (10)；The Hall current sensor and detection
Module (9), computing module (6), control module (7) and relay (8) are linked in sequence.
2. intelligent breaker control loop according to claim 1 is protected and monitoring device, it is characterised in that：Computing module
(6) memory module (5), decision-making expert database module (3) is passed sequentially through to be connected with communication module (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621116102.0U CN206195330U (en) | 2016-10-12 | 2016-10-12 | Protection of intelligence breaker control circuit and monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621116102.0U CN206195330U (en) | 2016-10-12 | 2016-10-12 | Protection of intelligence breaker control circuit and monitoring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206195330U true CN206195330U (en) | 2017-05-24 |
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ID=58730775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621116102.0U Active CN206195330U (en) | 2016-10-12 | 2016-10-12 | Protection of intelligence breaker control circuit and monitoring devices |
Country Status (1)
| Country | Link |
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| CN (1) | CN206195330U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696624A (en) * | 2019-01-15 | 2019-04-30 | 中国南方电网有限责任公司超高压输电公司南宁监控中心 | A kind of disconnecting link control loop surveillance and monitoring method and system |
| CN110492443A (en) * | 2019-09-05 | 2019-11-22 | 广东电网有限责任公司 | 10kV switchgear secondary component real-time monitoring protective device |
| CN111864702A (en) * | 2020-07-15 | 2020-10-30 | 国网河北省电力有限公司检修分公司 | Device and method for protecting circuit breaker coil |
| CN113295991A (en) * | 2021-04-08 | 2021-08-24 | 国网浙江省电力有限公司台州供电公司 | Fault analysis method and device based on high-voltage circuit breaker control loop impedance |
-
2016
- 2016-10-12 CN CN201621116102.0U patent/CN206195330U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696624A (en) * | 2019-01-15 | 2019-04-30 | 中国南方电网有限责任公司超高压输电公司南宁监控中心 | A kind of disconnecting link control loop surveillance and monitoring method and system |
| CN110492443A (en) * | 2019-09-05 | 2019-11-22 | 广东电网有限责任公司 | 10kV switchgear secondary component real-time monitoring protective device |
| CN111864702A (en) * | 2020-07-15 | 2020-10-30 | 国网河北省电力有限公司检修分公司 | Device and method for protecting circuit breaker coil |
| CN113295991A (en) * | 2021-04-08 | 2021-08-24 | 国网浙江省电力有限公司台州供电公司 | Fault analysis method and device based on high-voltage circuit breaker control loop impedance |
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