CN106848995A - A kind of portable emergency protection device - Google Patents
A kind of portable emergency protection device Download PDFInfo
- Publication number
- CN106848995A CN106848995A CN201710235334.0A CN201710235334A CN106848995A CN 106848995 A CN106848995 A CN 106848995A CN 201710235334 A CN201710235334 A CN 201710235334A CN 106848995 A CN106848995 A CN 106848995A
- Authority
- CN
- China
- Prior art keywords
- microcomputer
- emergency
- protection device
- protecting
- electric wire
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of portable emergency protection device; including microcomputer protecting device; breaker, current transformer, voltage transformer and the microcomputer control device being connected with microcomputer protecting device respectively by electric wire; card has the clamp on amperemeter for reading current signal on electric wire between the current transformer and microcomputer protecting device; the clamp on amperemeter connects emergency protecting equipment, and the emergency protecting equipment connects through electric wire and distinguishes connected with computer protection device, breaker, voltage transformer, microcomputer control device respectively by electric wire.The present invention realizes the portability of emergency protecting equipment, improves power supply reliability.
Description
Technical field
The present invention relates to Protector for electric appliances technical field, and in particular to a kind of portable emergency protection device.
Background technology
Existing below 220kV microcomputer protecting devices are all using single Analysis of Nested Design scheme.When the Microcomputer Protection as secondary device
When device occurs exception or failure, the primary equipment of its protection and control generally requires involvement and is forced to have a power failure, and directly results in power supply
The reduction of reliability.
The content of the invention
To solve the above problems, the present invention considers, in the case where a set of microcomputer protecting device is not increased additionally, to use one
Plant portable emergency protection device and substitute the microcomputer protecting device for going wrong, it is ensured that the microcomputer protecting device failure originally run
During treatment, protected primary equipment does not lose protection need not be forced to have a power failure, and improve power supply reliability.
Technical scheme：
A kind of portable emergency protection device, including microcomputer protecting device, are connected with microcomputer protecting device respectively by electric wire
Breaker, current transformer, voltage transformer and microcomputer control device, between the current transformer and microcomputer protecting device
Card has the clamp on amperemeter for reading current signal on electric wire, and the clamp on amperemeter connects emergency protecting equipment, the emergent guarantor
Protection unit connects through electric wire and distinguishes connected with computer protection device, breaker, voltage transformer, microcomputer measuring and controlling respectively by electric wire
Device.
Further, the emergency protecting equipment includes CPU card, and the CPU card connects AD plug-in units, outlet and inserts respectively
The pressure-wire of part and signal plug-in unit, the AD plug-in units connection clamp on amperemeter and access terminal block.
Further, described outlet plug-in unit includes control positive electricity, tripping operation line, closing line and relay；The signal is inserted
Part includes remote signals and signal positive electricity.
Beneficial effects of the present invention：
Portable emergency protection device key technology of the present invention is to employ clamp on amperemeter collection current signal, it is ensured that electric current
Electric current is directly accessed device in the case that transformer is not opened a way, simultaneously as being greatly reduced as friendship using clamp on amperemeter
The volume and weight of the AD plug-in units of stream signal acquisition part, realizes the portability of emergency protecting equipment, improves power supply reliability.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation of emergency protecting equipment.
In accompanying drawing, 1- microcomputer protecting devices, 2- breakers, 3- current transformers, 4- voltage transformers, 5- microcomputer measuring and controllings dress
Put, 6- clamps on amperemeter, 7- emergency protecting equipments, 7-1-CPU plug-in units, 7-2-AD plug-in units, 7-3- outlet plug-in unit, 7-4- signals are inserted
Part, 7-3-1- control positive electricity, 7-3-2- tripping operation line, 7-3-3- closing lines, 7-3-4- relays, 7-4-1- include remote signals,
7-4-2- signal positive electricity.
Specific embodiment
As depicted in figs. 1 and 2, a kind of portable emergency protection device, including microcomputer protecting device 1, is distinguished by electric wire
Breaker 2, current transformer 3, voltage transformer 4 and the microcomputer control device 5 being connected with microcomputer protecting device 1, the electric current
Card has the clamp on amperemeter 6 for reading current signal, the pincerlike electric current on electric wire between transformer 3 and microcomputer protecting device 1
Table 6 connects emergency protecting equipment 7, the emergency protecting equipment 7 by electric wire difference connected with computer protection device 1, breaker 2,
Voltage transformer 4, microcomputer control device 5.
Further, the emergency protecting equipment 7 connects AD plug-in units respectively including CPU card 7-1, the CPU card 7-1
The voltage of 7-2, outlet plug-in unit 7-3 and signal plug-in unit 7-4, the AD plug-in units 7-2 connection clamps on amperemeter 6 and access terminal block
Line.
Further, described outlet plug-in unit 7-3 include control positive electricity 7-3-1, tripping operation line 7-3-2, closing line 7-3-3 and
Relay 7-3-4；The signal plug-in unit 7-4 includes remote signals 7-4-1 and signal positive electricity 7-4-2.
Microcomputer protecting device 1 mainly obtains the current signal that primary equipment runs by current transformer 3, mutual by voltage
Sensor 4 obtains the voltage signal of operational outfit.Then calculated by the CPU card 7-1 of itself, driven outlet plug-in unit 7-3
Control breaker open operation or combined floodgate, drive signal plug-in unit 7-4 send various signals.
The operation characteristic of current transformer 3 is that can not occur open circuit in running, and the operation characteristic of voltage transformer 4 is
Can not occur short circuit in running.A kind of portable emergency protection device of the present invention, it is considered to do not changed using clamp on amperemeter 6
Becoming the secondary circuit of existing current transformer 3 does not make it mutual by the way that clamp on amperemeter 6 is directly clamped among into primary current on the basis of opening a way
Current signal is read on the secondary line of sensor 3 and is supplied to emergency protecting equipment 7.And for voltage signal, can directly by secondary
Line draws access emergency set 7 in the terminal block of existing protection device.
The emergency protecting equipment 7 also is provided with protecting CPU card 7-1, is connect by analyzing and processing clamp on amperemeter 6 and secondary line
The AC signal for entering carries out logic function judgement.Its outlet plug-in unit 7-3 for being also configured with self adaptation, when the event of microcomputer protecting device 1
When barrier needs to exit, by the power line of control loop, tripping operation line, closing line are directly accessed the emergency protecting equipment 7.Control loop
Access also by terminal block realize.Simultaneously the portable emergency protection device also have circuit breaker closing lock signal access loop and
Emergency protecting equipment outputs signal circuit.Wherein signal outputs loop and accesses former comprehensive automation system of transformer substation.Circuit breaker closing
Lock signal accesses loop and is primarily referred to as when the breaker of protection device control is in abnormality（Mainly SF6 gas pressures
Reduce or spring unstored energy state）, breaker quiescing, now breaker send block signal to protection device, forbid
Protection device operates the breaker.Emergency protecting equipment is outputed signal circuit access comprehensive automation system of transformer substation and is primarily referred to as
The signal of self-operating state is sent to transformer station comprehensively certainly by emergency protecting equipment by hard contact or the formal of soft message
Dynamicization system, is running status that a distant place can monitor the protection device.The signal for reacting protection device running status is main
Have, the signal such as operation exception, device dead electricity, device locking, protection act.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (3)
1. a kind of portable emergency protection device, including microcomputer protecting device（1）, by electric wire respectively with microcomputer protecting device
（1）Connected breaker（2）, current transformer（3）, voltage transformer（4）And microcomputer control device（5）, it is characterised in that institute
State current transformer（3）With microcomputer protecting device（1）Between electric wire on card have read current signal clamp on amperemeter（6）,
The clamp on amperemeter（6）Connection emergency protecting equipment（7）, the emergency protecting equipment（7）Connected with computer is distinguished by electric wire
Protection device（1）, breaker（2）, voltage transformer（4）, microcomputer control device（5）.
2. a kind of portable emergency protection device according to claim 1, it is characterised in that the emergency protecting equipment
（7）Including CPU card（7-1）, the CPU card（7-1）AD plug-in units are connected respectively（7-2）, outlet plug-in unit（7-3）Inserted with signal
Part（7-4）, the AD plug-in units（7-2）Connection clamp on amperemeter（6）With the pressure-wire for accessing terminal block.
3. a kind of portable emergency protection device according to claim 2, it is characterised in that described outlet plug-in unit（7-
3）Including control positive electricity（7-3-1）, tripping operation line（7-3-2）, closing line（7-3-3）And relay（7-3-4）；The signal plug-in unit
（7-4）Including remote signals（7-4-1）With signal positive electricity（7-4-2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235334.0A CN106848995A (en) | 2017-04-12 | 2017-04-12 | A kind of portable emergency protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235334.0A CN106848995A (en) | 2017-04-12 | 2017-04-12 | A kind of portable emergency protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106848995A true CN106848995A (en) | 2017-06-13 |
Family
ID=59146599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710235334.0A Pending CN106848995A (en) | 2017-04-12 | 2017-04-12 | A kind of portable emergency protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106848995A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022986A (en) * | 2012-12-14 | 2013-04-03 | 滁州安瑞电力自动化有限公司 | Digital line protection measuring and control device |
| CN103825259A (en) * | 2014-03-19 | 2014-05-28 | 江苏沙洲电气有限公司 | Relay protection system |
| CN104779705A (en) * | 2015-05-06 | 2015-07-15 | 特变电工湖南智能电气有限公司 | Line protection measurement and control method and device |
| CN206685875U (en) * | 2017-04-12 | 2017-11-28 | 国家电网公司 | A kind of portable emergency protection device |
-
2017
- 2017-04-12 CN CN201710235334.0A patent/CN106848995A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022986A (en) * | 2012-12-14 | 2013-04-03 | 滁州安瑞电力自动化有限公司 | Digital line protection measuring and control device |
| CN103825259A (en) * | 2014-03-19 | 2014-05-28 | 江苏沙洲电气有限公司 | Relay protection system |
| CN104779705A (en) * | 2015-05-06 | 2015-07-15 | 特变电工湖南智能电气有限公司 | Line protection measurement and control method and device |
| CN206685875U (en) * | 2017-04-12 | 2017-11-28 | 国家电网公司 | A kind of portable emergency protection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |