CN206962434U - A kind of passive protective relaying device - Google Patents
A kind of passive protective relaying device Download PDFInfo
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- CN206962434U CN206962434U CN201720764074.1U CN201720764074U CN206962434U CN 206962434 U CN206962434 U CN 206962434U CN 201720764074 U CN201720764074 U CN 201720764074U CN 206962434 U CN206962434 U CN 206962434U
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- protective relaying
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- 230000001681 protective effect Effects 0.000 title claims abstract description 38
- 238000009825 accumulation Methods 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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Abstract
The utility model provides a kind of passive protective relaying device, including CPU module, signal acquisition module, signal outlet module and power module, power module and signal acquisition module, signal outlet module and CPU module electrical connection, CPU module and signal acquisition module, signal outlet module connects, signal for signal acquisition module to be gathered carries out the work of logic judgment control signal outlet module, power module is accumulation power supply module, accumulation power supply module is used to connect external power supply, and electric discharge makes protective relaying device continue normal work in external power cut-off, when primary equipment goes wrong or other problemses occurs, control tripping circuit breaker that can be promptly and accurately, disengagement failure loop, faulty equipment is set to be separated from main system, avoid the further expansion of accident and the damage of primary equipment.
Description
Technical field
The utility model belongs to technical field of relay protection, more particularly to a kind of passive protective relaying device.
Background technology
Power system is due to many reasons such as natural environment, workmanship, operation and maintenance level, it may appear that operation event
Barrier, therefore for power system an efficient public security system is established it is necessary to special technology, wherein, most important know-how
One of be exactly Protection Technology, protective relaying device is used for the running status for detecting each element of power system in real time, once be
System is broken down or abnormal, and Fault Isolation or alarm are realized in action to protective relaying device rapidly, ensure power system safety and
It is stable.When a failure occurs it, protective relaying device can react the failure and irregular operating state and automatic rapid of electrical equipment
Ground, selectively act and cut off from system faulty equipment in breaker, ensure that fault-free equipment continues normal operation, and prevent
Only faulty equipment continues to suffer damage；When abnormal working position occurs in power system, relay protection sends signal automatically, makes
Watch is able to observe and take necessary measure in time.Accident can be limited in minimum model by the relay protection of power system
Enclose, improve the reliability of system operation, ensure user security, continuous power supply to greatest extent.
But the above course of work is all the relay in the state of the external power supply of protective relaying device connection is in normal
Protection device is just able to excision faulty equipment promptly and accurately, when being caught fire in external power cut-off or cable duct, without power supply
Powered for protective relaying device, cause relay protection cisco unity malfunction, when primary equipment is problematic, protective relaying device is not
It can promptly and accurately act and cut off faulty equipment from system, cause the accident expansion, influences the normal operation of system and damages once
Equipment.
Utility model content
The purpose of this utility model is to provide a kind of passive protective relaying device, for solving when external power supply powers off
Protective relaying device can not be promptly and accurately excision fault impact system normal operation the problem of.
To achieve the above object, the technical solution of the utility model is：
A kind of passive protective relaying device, including CPU module, signal acquisition module, signal outlet module and power module,
The power module electrically connects with the signal acquisition module, the signal outlet module and the CPU module, the CPU moulds
Block is connected with the signal acquisition module, the signal outlet module, and the signal for signal acquisition module to be gathered is patrolled
Collect and judge to control the signal outlet module work, the power module is accumulation power supply module, and the accumulation power supply module is used
In connection external power supply, and electric discharge makes protective relaying device continue normal work when the external power supply powers off.
Further, the accumulation power supply module is super capacitor.
Further, the accumulation power supply module is battery.
Further, in addition to expansion module, the expansion module are connected with CPU module, power module, the expanded mode
Block includes human-computer dialogue module and/or communication module.
Further, the signal acquisition module includes current transformer and/or voltage transformer, for by the electricity of collection
Stream and/or voltage signal are converted into the voltage signal of setting range.
Further, in addition to housing, the CPU module, signal acquisition module, signal outlet module and power module are equal
It is arranged in the housing.
The beneficial effects of the utility model are：
The utility model provides a kind of passive protective relaying device, and the passive protective relaying device includes CPU module, letter
Number acquisition module, signal outlet module and accumulation power supply module, accumulation power supply module are used to connect external power supply, and in external electricity
Electric discharge makes protective relaying device can continue to normal work for a period of time when source powers off, when a side apparatus goes wrong or occurs
During other problemses, control tripping circuit breaker that can be promptly and accurately, makes faulty equipment be separated from main system at disengagement failure loop
Go out, avoid the further expansion of accident and the damage of primary equipment, and apparatus structure of the present utility model is simple, technique into
It is ripe.
Brief description of the drawings
Fig. 1 is the structural representation of passive protective relaying device of the present utility model.
Embodiment
Specific embodiment of the present utility model is further described below in conjunction with the accompanying drawings：
A kind of embodiment of passive protective relaying device of the present utility model：
A kind of passive protective relaying device, including CPU module, signal acquisition module, signal outlet module and power module,
The power module electrically connects with the signal acquisition module, the signal outlet module and the CPU module, the CPU moulds
Block is connected with the signal acquisition module, the signal outlet module, and the signal for signal acquisition module to be gathered is patrolled
Collect and judge that control signal outlet module works, power module is accumulation power supply module, and accumulation power supply module is used to connect external electricity
Source, and electric discharge makes protective relaying device continue normal work in external power cut-off；Passive protective relaying device also includes expanding
Module is opened up, expansion module is connected with CPU module, power module, and expansion module can add human-computer dialogue module and/or communication mould
Block, it is the relation being bi-directionally connected between expansion module and CPU module, human-computer dialogue module and/or communication module both can be with CPU
Module establishes connection, and CPU module can send control human-computer dialogue module and/or communication module again；The passive relay protection
Device also includes housing, wherein, CPU module, signal acquisition module, signal outlet module and power module are arranged at the shell
In vivo.
The accumulation power supply module of the present embodiment is super capacitor or the battery with charging/discharging function, super capacitor or battery
Can be discharged in external power cut-off makes protective relaying device work on.
It is specifically：External power supply is connected in the accumulation power supply module of protective relaying device, when external power supply inputs back
When road is normal, what the passive protective relaying device of the present embodiment was supplied to signal outlet module is to output sky node, does not provide electricity
Source.Now, signal acquisition module includes current transformer or voltage transformer, and the external voltage current signal of collection is converted into
Voltage signal analog quantity is sent to CPU module by 0~5V voltage signal analog quantitys, signal acquisition module, and CPU module is reception
Voltage signal analog quantity is converted into digital quantity by the AD conversion chip being internally integrated, and the digital quantity after conversion is stored into accordingly
Memory, CPU read the data of register, and carry out logic judgment, when meeting exit condition through signal outlet module outlet,
Corresponding breaker is closed, cuts off faulty equipment, ensures primary equipment safe operation.
In addition, when external power supply is connected on protective relaying device, external power supply power transmission device is started working, accumulation power supply mould
BOB(beginning of block) self-charging, charge circuit or when cable duct catches fire is cut off when external power supply disappears, can site to install this passive
Protective relaying device, now, accumulation power supply module is signal acquisition module and signal outlet module for power supply, and can be according to priority
Expansion module power supply is arranged to, ensures that protective relaying device energy normal work in no external power supply for a period of time, will gather
External voltage current signal be converted into 0~5V voltage signal analog quantitys, signal acquisition module sends voltage signal analog quantity
To CPU module, the voltage signal analog quantity of reception is converted into digital quantity by CPU module by the AD conversion chip being internally integrated,
Digital quantity after conversion is stored into respective memory, CPU reads the data of register, and carries out logic judgment, when meeting
Through signal outlet module outlet during pig's tongue part, corresponding breaker is closed, cuts off faulty equipment, ensures that primary equipment is transported safely
OK, as primary equipment failure, protection can be operating normally, disengagement failure part, it is ensured that safe operation of power system.
Accumulation power supply module is discharged always, when the energy stored by accumulation power supply module is begun to decline, and is dropped to certain
During the stage, it is stopped.
Passive protective relaying device of the present utility model be in the case where external power outage or cable duct catch fire, make after
Electric protection equipment can the device of normal work for a period of time, solve external power supply when suddenly disappearing, if primary equipment have therefore
Protective relaying device can be acted failure removal promptly and accurately during barrier, and the accident that avoids further expands and the damage of primary equipment
It is bad, and apparatus structure is simple, technical maturity, it is compact-sized can site installation.
Specific embodiment is presented above, but the utility model is not limited to embodiment described above.This
The basic ideas of utility model are above-mentioned basic scheme, for those of ordinary skill in the art, according to of the present utility model
Teaching, design the models of various modifications, formula, parameter and creative work need not be spent.The utility model is not being departed from
Principle and spirit in the case of to embodiment carry out change, modification, replacement and modification still fall within guarantor of the present utility model
In the range of shield.
Claims (6)
1. a kind of passive protective relaying device, including CPU module, signal acquisition module, signal outlet module and power module, institute
State power module to electrically connect with the signal acquisition module, the signal outlet module and the CPU module, the CPU module
It is connected with the signal acquisition module, the signal outlet module, the signal for signal acquisition module to be gathered carries out logic
Judge to control the signal outlet module work, it is characterised in that the power module is accumulation power supply module, the energy storage electricity
Source module is used to connect external power supply, and electric discharge makes protective relaying device continue normal work when the external power supply powers off.
2. passive protective relaying device according to claim 1, it is characterised in that the accumulation power supply module is super electricity
Hold.
3. passive protective relaying device according to claim 1, it is characterised in that the accumulation power supply module is battery.
4. the passive protective relaying device according to Claims 2 or 3, it is characterised in that also including expansion module, the expansion
Exhibition module is connected with CPU module, power module, and the expansion module includes human-computer dialogue module and/or communication module.
5. passive protective relaying device according to claim 1, it is characterised in that the signal acquisition module includes electric current
Transformer and/or voltage transformer, for the electric current of collection and/or voltage signal to be converted into the voltage signal of setting range.
6. passive protective relaying device according to claim 1, it is characterised in that also including housing, the CPU module,
Signal acquisition module, signal outlet module, expansion module and power module are arranged in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720764074.1U CN206962434U (en) | 2017-06-27 | 2017-06-27 | A kind of passive protective relaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720764074.1U CN206962434U (en) | 2017-06-27 | 2017-06-27 | A kind of passive protective relaying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206962434U true CN206962434U (en) | 2018-02-02 |
Family
ID=61386389
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720764074.1U Active CN206962434U (en) | 2017-06-27 | 2017-06-27 | A kind of passive protective relaying device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206962434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412123A (en) * | 2018-11-26 | 2019-03-01 | 烟台市华能电器有限公司 | Passive storage/the enquiry circuit of 10KV power circuit CT electric power supply control system |
-
2017
- 2017-06-27 CN CN201720764074.1U patent/CN206962434U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412123A (en) * | 2018-11-26 | 2019-03-01 | 烟台市华能电器有限公司 | Passive storage/the enquiry circuit of 10KV power circuit CT electric power supply control system |
| CN109412123B (en) * | 2018-11-26 | 2024-04-30 | 烟台市华能电器有限公司 | Passive storage/query circuit of 10KV power line CT power supply control system |
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