CN106451745A - Relay protection outlet loop automatic switching system - Google Patents
Relay protection outlet loop automatic switching system Download PDFInfo
- Publication number
- CN106451745A CN106451745A CN201610905357.3A CN201610905357A CN106451745A CN 106451745 A CN106451745 A CN 106451745A CN 201610905357 A CN201610905357 A CN 201610905357A CN 106451745 A CN106451745 A CN 106451745A
- Authority
- CN
- China
- Prior art keywords
- loop
- protective relaying
- relaying device
- relay protection
- relay
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention discloses a relay protection outlet loop automatic switching system. According to the system, a switching device, a first relay protection device, a second relay protection device, a third relay protection device and a circuit breaker mechanism are adopted; a relay protection device of which the operating power source is connected to a circuit breaker mechanism through an operation loop is judged through the switching device; and since the normally closed contact of a voltage relay is connected in series in the operation loop, it can be ensured that only one set of relay protection device of which the operating power source is connected to the circuit breaker mechanism at the same time exists. With the relay protection outlet loop automatic switching system adopted, when different relay protection devices need outlet transmission, and only one circuit breaker mechanism exists actually, the switching device can be utilized to automatically switch the operating power sources, so that the series connection of the operating power sources of different relay protection devices can be prevented; and the information of a switched-in relay protection device is transferred to a monitoring background, so that a training instructor can be facilitated to control a whole-set transmission test of an on-site trainee.
Description
Technical field
The system the present invention relates to electric relay protection field, more particularly to a kind of relay protection outlet loop are automatically switched
System.
Background technology
In recent years, developing rapidly with power grid construction, the quantity of transformer station is sharply increased, and personnel are newly entered in relay protection
It is gradually increased, simultaneously because improving to grid equipment maintenance requirement, the requirement to the training of relay protection practitioner is also higher,
Need to be more nearly equipment regular maintenance equipment and give training, current relay protection training majority uses mimic-disconnecting switch,
It is rarely employed actual chopper to give training, and rare many set protections is while using a chopper, protect when different relays are needed
During protection unit transmission, realize often by artificial rewiring, at present when different protective relaying devices need outlet transmission
And during an actual only chopper, need manually to remodify loop to realize, simultaneously because the personnel for participating in training are
New registration employee, is unfamiliar with to loop, so often results in loop and changes imperfect and cause different control power supplys mutually to go here and there or connect
Line imperfection leads to not realize transmission
Content of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provides a kind of automatically switching operation power supply, prevents
The relay protection outlet loop automatic switchover system that different protection device operation powers are mutually gone here and there.
The technical scheme that the present invention is provided is as follows：A kind of relay protection outlet loop automatic switchover system, including switching dress
The first protective relaying device for putting and being connected in independent loop with switching device respectively, the second protective relaying device, the 3rd relay
Protection device and breaker mechanism, and the monitoring backstage of monitoring switching state, are provided with control module in the switching device,
Between first protective relaying device, the second protective relaying device and the 3rd protective relaying device and the control module respectively
The first control loop, the second control loop and the 3rd control loop is provided with, first protective relaying device, the second relay are protected
First voltage measure loop, the second electricity is also respectively provided between protection unit and the 3rd protective relaying device and the control module
Pressure measure loop and tertiary voltage measure loop, first protective relaying device, the second protective relaying device and the 3rd relay
Protection device is all connected with the breaker mechanism by circuit, is provided between the control module and the breaker mechanism
Operation circuit, the control module is according to the first voltage measure loop or second voltage measure loop or tertiary voltage detection
The feedback that loop detection voltage has or not is judging whether to fill to corresponding first protective relaying device or the second relay protection
Put or the 3rd protective relaying device sends the control instruction of conducting, so that first protective relaying device switched on or the
The operation power of two protective relaying devices or the 3rd protective relaying device accesses the breaker mechanism by the operation circuit.
In the preferred embodiment, on the operation circuit, voltage relay is provided with, the voltage relay
Normally closed contact be connected in the operation circuit and turn on first protective relaying device or the second protective relaying device or
In the loop of three protective relaying devices so that cannot exist in the operation circuit come from first protective relaying device or
The two-way power supply of the second protective relaying device or the 3rd protective relaying device is concurrently accessed the breaker mechanism.
In the preferred embodiment, the first voltage measure loop, second voltage measure loop and the 3rd electricity
Light coupling relay is provided with pressure measure loop.
In the preferred embodiment, in first control loop, the second control loop and the 3rd control loop
It is provided with PhotoMOS relay.
In the preferred embodiment, also include a measure and control device, the measure and control device is connected to the described first control
Between loop processed, the second control loop and the 3rd control loop and the monitoring backstage, for by first control loop,
The switched conductive signal transmission of two control loops and the 3rd control loop is to monitoring backstage.
In the preferred embodiment, three display lamps, three instructions are additionally provided with the measure and control device
Lamp is respectively electrically connected to first protective relaying device, the conducting of the second protective relaying device and the 3rd protective relaying device and returns
Lu Shang, the corresponding finger when first protective relaying device or the second protective relaying device or the conducting of the 3rd protective relaying device
Show that lamp is lighted.
In the preferred embodiment, the display lamp is set to light emitting diode, the light emitting diode and institute
State PhotoMOS relay to be electrically connected.
In the preferred embodiment, the control module is set to single-chip microcomputer.
In the preferred embodiment, also include power module in the switching device.
The beneficial effect that the present invention is produced is：The relay protection outlet loop automatic switchover system is by arranging switching dress
Put, the first protective relaying device, the second protective relaying device, the 3rd protective relaying device and breaker mechanism, using switching dress
Put the feedback having or not according to first voltage measure loop or second voltage measure loop or tertiary voltage measure loop detection voltage
To judge whether to send and lead to corresponding first protective relaying device or the second protective relaying device or the 3rd protective relaying device
Logical control instruction, so that the first protective relaying device switched on or the second protective relaying device or the 3rd relay protection dress
The operation power that puts accesses breaker mechanism by operation circuit, due to being in series with the normally closed of voltage relay in operation circuit
Contact, therefore ensures simultaneously that the operation power of only a set of protective relaying device accesses breaker mechanism, using the relay protection
Outlet loop automatic switchover system, when different protective relaying devices need outlet transmission and an actual only breaker mechanism
When, using switching device automatically switching operation power supply, prevent different protective relaying device operation powers from mutually going here and there, while will switch to
The information transmission of which set protective relaying device is easy to training instruction teacher that on-site training personnel are done with whole group biography to monitoring backstage
The control of dynamic test.
Description of the drawings
Fig. 1 is the system communication chart of the relay protection outlet loop automatic switchover system in the present invention；
Fig. 2 is the module communication chart in the relay protection outlet loop automatic switchover system in the present invention in switching device；
Fig. 3 be the present invention in relay protection outlet loop automatic switchover system in switching device and protective relaying device it
Between control drawing；
Fig. 4 is the wiring diagram in the relay protection outlet loop automatic switchover system in the present invention in protective relaying device；
Fig. 5 be the present invention in relay protection outlet loop automatic switchover system in switching device and protective relaying device it
Between voltage detection circuit figure；
Fig. 6 is that in the relay protection outlet loop automatic switchover system in the present invention, loop diagram outputed by single-chip microcomputer.
Specific embodiment
Referring to Fig. 1 to Fig. 6, a kind of relay protection outlet loop automatic switchover system, fill including switching device and with switching
Protection device one (the first protective relaying device), two (the first relay protection dress of protection device for connecting respectively is put in independent loop
Put), protection device three (the first protective relaying device) and breaker mechanism, and the monitoring backstage of monitoring switching state, switching
Control module (single-chip microcomputer in Fig. 2) is provided with device, also includes power module (as shown in Figure 2) in switching device, protection
The first control loop is respectively arranged between device one, protection device two and protection device three and control module, second controlled back
Road and the 3rd control loop, are provided with light MOS relay in the first control loop, the second control loop and the 3rd control loop
Device, is also respectively provided with first voltage between protection device one, protection device two and protection device three and control module and detects back
Road, second voltage measure loop and tertiary voltage measure loop, first voltage measure loop, second voltage measure loop and the 3rd
Light coupling relay is provided with voltage detection circuit, and protection device one, protection device two and protection device three are all by circuit
It is connected with breaker mechanism, operation circuit between control module and breaker mechanism, is provided with, control module is according to first voltage
The feedback that measure loop or second voltage measure loop or tertiary voltage measure loop detection voltage have or not is judging whether to right
The protection device one that answers or protection device two or protection device three send the control instruction of conducting, so that protection dress switched on
Put one or the operation power of protection device two or protection device three breaker mechanism is accessed by operation circuit.Set on operation circuit
Voltage relay is equipped with, the normally closed contact of voltage relay is connected on conducting protection device one or protection device two in operation circuit
Or in the loop of protection device three so that cannot exist in operation circuit and come from protection device one or protection device two or protection
The two-way power supply of device three is concurrently accessed breaker mechanism.Also include a measure and control device, measure and control device is connected to the first control and returns
Between road, the second control loop and the 3rd control loop and monitoring backstage, for by the first control loop, the second control loop and
The switched conductive signal transmission of the 3rd control loop is additionally provided with three display lamps to monitoring backstage, on measure and control device, and (figure is not
Show), three display lamps are respectively electrically connected on the conducting loop of protection device one, protection device two and protection device three, work as guarantor
When protection unit one or protection device two or protection device three are turned on, corresponding display lamp is lighted, and display lamp is set to light-emitting diodes
Pipe, light emitting diode is electrically connected with PhotoMOS relay.
Specifically, system is worked referring to Fig. 1, and the relay protection outlet loop automatic switchover system, by three protection devices
(protection device one, protection device two, protection device three) operation circuit is connected to automatic switching control equipment, only one group after switching
Operation circuit is connected with circuit breaker operation mechanism, and the connection of three protection devices is sent to monitoring by measure and control device
Backstage.
Referring to Fig. 2, during the connection of each module in the inside of the switching device is as shown in Fig. 2 protection device operation circuit is connected to
Between relay front end have a potentiometric detection loop, each auxiliary reclay also has a control loop, and has an electricity after switching
Potential relay, only after switching, voltage relay does not have voltage and only one group of auxiliary reclay front end operation circuit has voltage
When from scratch, when single-chip microcomputer can send instruction relay conducting, when relay front voltage from have to no when, then single-chip microcomputer meeting
Sending instruction disconnects relay, is so automatically engaged with the different protection device operation powers of realization and exits.
Referring to Fig. 3, control loop such as Fig. 3 of relay, due to making voltage relay of having connected in the loop of relay conducting
The normally closed contact of device, when there is voltage relay rear end, normally closed contact disconnects, and so allows for having had a protection device
Operation power is served, then when having a protection device to send installation's power source again, then the relay is not turned on, it is to avoid two groups of operation electricity
Source is mutually gone here and there.
Referring to Fig. 4, each contact of auxiliary reclay as shown in figure 4, when contact 1 receives single-chip microcomputer signal, relay
34 contacts, 56 contacts, 9 10 contacts, 11 12 junction closures, then now operation circuit is conducted to chopper, while 7
8 junction closures, actuating signal is sent to monitoring backstage by measure and control device, when middle relay tip 13 receives single-chip microcomputer signal
When, then these contacts are all off.
Referring to Fig. 5, voltage detection circuit is as shown in figure 5, pass through light coupling relay by 1 in operation circuit and 2 voltage differences
It is linked into single-chip microcomputer to open into establishing by cable fashionable when just having, judge that there is voltage in the loop.
Referring to Fig. 6, single-chip microcomputer output loop as shown in fig. 6, when single-chip microcomputer is outputed, PhotoMOS relay light-emitting diode
When pipe is luminous+,-junction closure, for controlling contact-relay.
In sum, the relay protection outlet loop automatic switchover system is by arranging switching device, three sets of relay protections
Device and breaker mechanism, judge to connect the operation power of which set protective relaying device by operation circuit using switching device
Entering breaker mechanism, as the normally closed contact of voltage relay is in series with operation circuit, therefore ensures while only a set of
The operation power of protective relaying device accesses breaker mechanism, using the relay protection outlet loop automatic switchover system, when not
When needing outlet transmission and an actual only breaker mechanism with protective relaying device, using switching device automatically switching operation
Power supply, prevents different protective relaying device operation powers from mutually going here and there, while the information for switching to which set protective relaying device is passed
Monitoring backstage is delivered to, is easy to training instruction teacher that on-site training personnel are done with the control of whole group transmission test.
A specific embodiment of the present invention is above are only, but the design concept of the present invention is not limited thereto, all utilizations
This design carries out the change of unsubstantiality to the present invention, all should belong to the behavior for invading the scope of the present invention.
Claims (9)
1. a kind of relay protection outlet loop automatic switchover system, it is characterised in that:Divide including switching device and with switching device
Cheng not the first protective relaying device of independent loop connection, the second protective relaying device, the 3rd protective relaying device and chopper
Mechanism, and the monitoring backstage of monitoring switching state, are provided with control module in the switching device, first relay protection
The first control is respectively arranged between device, the second protective relaying device and the 3rd protective relaying device and the control module to return
Road, the second control loop and the 3rd control loop, first protective relaying device, the second protective relaying device and the 3rd relay
First voltage measure loop, second voltage measure loop and the 3rd is also respectively provided between protection device and the control module
Voltage detection circuit, first protective relaying device, the second protective relaying device and the 3rd protective relaying device are all by line
Road is connected with the breaker mechanism, is provided with operation circuit between the control module and the breaker mechanism, the control
Molding tuber has according to the first voltage measure loop or second voltage measure loop or tertiary voltage measure loop detection voltage
The feedback of nothing is judging whether to protect to corresponding first protective relaying device or the second protective relaying device or the 3rd relay
Protection unit sends the control instruction of conducting, so that first protective relaying device switched on or the second protective relaying device
Or the 3rd the operation power of protective relaying device the breaker mechanism is accessed by the operation circuit.
2. relay protection outlet loop according to claim 1 automatic switchover system, it is characterised in that：The operation circuit
On be provided with voltage relay, the normally closed contact of the voltage relay is connected in the operation circuit and turns on described first and continue
In the loop of electrical protective device or the second protective relaying device or the 3rd protective relaying device so that cannot in the operation circuit
There is the two-way power supply for coming from first protective relaying device or the second protective relaying device or the 3rd protective relaying device
It is concurrently accessed the breaker mechanism.
3. relay protection outlet loop according to claim 1 automatic switchover system, it is characterised in that：The first voltage
Light coupling relay is provided with measure loop, second voltage measure loop and tertiary voltage measure loop.
4. relay protection outlet loop according to claim 1 automatic switchover system, it is characterised in that：First control
PhotoMOS relay is provided with loop, the second control loop and the 3rd control loop.
5. relay protection outlet loop according to claim 4 automatic switchover system, it is characterised in that：Also include an observing and controlling
Device, the measure and control device is connected to first control loop, the second control loop and the 3rd control loop and the monitoring
Between backstage, for by the switched conductive signal transmission of first control loop, the second control loop and the 3rd control loop
To monitoring backstage.
6. relay protection outlet loop according to claim 5 automatic switchover system, it is characterised in that：The measure and control device
On be additionally provided with three display lamps, three display lamps are respectively electrically connected to first protective relaying device, the second relay
On the conducting loop of protection device and the 3rd protective relaying device, when first protective relaying device or the second relay protection are filled
Put or the 3rd protective relaying device conducting when corresponding display lamp light.
7. relay protection outlet loop according to claim 6 automatic switchover system, it is characterised in that：The display lamp sets
Light emitting diode is set to, the light emitting diode is electrically connected with the PhotoMOS relay.
8. relay protection outlet loop according to claim 1 automatic switchover system, it is characterised in that：The control module
It is set to single-chip microcomputer.
9. relay protection outlet loop according to claim 1 automatic switchover system, it is characterised in that：The switching device
In also include power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610905357.3A CN106451745B (en) | 2016-10-18 | 2016-10-18 | Automatic switching system for relay protection outlet loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610905357.3A CN106451745B (en) | 2016-10-18 | 2016-10-18 | Automatic switching system for relay protection outlet loop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106451745A true CN106451745A (en) | 2017-02-22 |
| CN106451745B CN106451745B (en) | 2023-04-11 |
Family
ID=58177098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610905357.3A Active CN106451745B (en) | 2016-10-18 | 2016-10-18 | Automatic switching system for relay protection outlet loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451745B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264752A (en) * | 2022-07-25 | 2022-11-01 | 珠海格力电器股份有限公司 | Error connection preventing circuit, air conditioner and control method of air conditioner |
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| US20050273207A1 (en) * | 2002-02-25 | 2005-12-08 | Dougherty John J | Distributed protection system for power distribution systems |
| CN103515956A (en) * | 2013-10-08 | 2014-01-15 | 国家电网公司 | Voltage switching automatic paralleling device |
| CN104821557A (en) * | 2015-04-23 | 2015-08-05 | 中国能源建设集团江苏省电力设计院有限公司 | Control loop of breaker operation box |
| CN105655879A (en) * | 2016-01-19 | 2016-06-08 | 国网福建省电力有限公司泉州供电公司 | Voltage arranging mode of bus merging unit double configuration of 110 kV system in intelligent substation double-bus wiring mode |
| CN205429888U (en) * | 2016-03-23 | 2016-08-03 | 国网福建省电力有限公司 | Device that restarts of ripples device is recorded to trouble based on dispatching data network |
| CN205643537U (en) * | 2015-12-22 | 2016-10-12 | 许继集团有限公司 | Middle and low voltage relay protection automatic checkout system |
-
2016
- 2016-10-18 CN CN201610905357.3A patent/CN106451745B/en active Active
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|---|---|---|---|---|
| US20050273207A1 (en) * | 2002-02-25 | 2005-12-08 | Dougherty John J | Distributed protection system for power distribution systems |
| CN103515956A (en) * | 2013-10-08 | 2014-01-15 | 国家电网公司 | Voltage switching automatic paralleling device |
| CN104821557A (en) * | 2015-04-23 | 2015-08-05 | 中国能源建设集团江苏省电力设计院有限公司 | Control loop of breaker operation box |
| CN205643537U (en) * | 2015-12-22 | 2016-10-12 | 许继集团有限公司 | Middle and low voltage relay protection automatic checkout system |
| CN105655879A (en) * | 2016-01-19 | 2016-06-08 | 国网福建省电力有限公司泉州供电公司 | Voltage arranging mode of bus merging unit double configuration of 110 kV system in intelligent substation double-bus wiring mode |
| CN205429888U (en) * | 2016-03-23 | 2016-08-03 | 国网福建省电力有限公司 | Device that restarts of ripples device is recorded to trouble based on dispatching data network |
Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115264752A (en) * | 2022-07-25 | 2022-11-01 | 珠海格力电器股份有限公司 | Error connection preventing circuit, air conditioner and control method of air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106451745B (en) | 2023-04-11 |
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