CN106786367A - The combined method and input protector of microcomputer protecting device and outlet protection device - Google Patents
The combined method and input protector of microcomputer protecting device and outlet protection device Download PDFInfo
- Publication number
- CN106786367A CN106786367A CN201611174660.7A CN201611174660A CN106786367A CN 106786367 A CN106786367 A CN 106786367A CN 201611174660 A CN201611174660 A CN 201611174660A CN 106786367 A CN106786367 A CN 106786367A
- Authority
- CN
- China
- Prior art keywords
- protective relay
- relay device
- microcomputer protective
- microcomputer
- former
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to the combined method and input protector and outlet protection device of a kind of microcomputer protecting device.When combined method is that part plug-in unit is damaged in a former microcomputer protective relay device for factory in electric power system, the former microcomputer protective relay device of new microcomputer protective relay device compensation for accessing another factory damages the function of plug-in unit.Input protector is the new microcomputer protective relay device for concatenating another factory in electric power system in a former microcomputer protective relay device for factory, and the former microcomputer protective relay device of compensation damages the function of plug-in unit.Outlet protection device is the tripping operation contact of the new microcomputer protective relay device of the two tripping operation contacts another factory's production in parallel in former microcomputer protective relay device.The combined method of this microcomputer protecting device solves former microcomputer protective relay device part plug-in unit and damages the problem without accessory.Input protector and two good devices of effect that outlet protection device is the combined method for implementing this microcomputer protecting device.
Description
Technical field
The present invention relates to the combined method and input protector and outlet protection device of a kind of microcomputer protecting device.
Background technology
Power system is made up of all kinds of electrical equipments, due to factors, electrical equipment such as manufacture, transport, installation, running environment
Inevitable that the occurrence of exception or failure in actual motion, relay protection be exactly for detecting power system in
The running status of each equipment, is alarmed when unit exception, and when device fails, relay protection is quick, automatically, there is choosing
Faulty equipment is cut off with selecting, make failure original paper from more badly damaged, while ensuring the normal operation of no failure part, make thing
Therefore scope and the influence to system are minimized, it is ensured that the stabilization of power system, malfunction, the tripping of protection can all cause power train
The pernicious consequence of system fault spread.The correctness direct relation of relay protection action the stability and security of power system.
Power system is almost employed Microcomputer Protection, and Microcomputer Protection has dependable performance, and action is fast, powerful etc. all
Many advantages, but due to its electronic building brick, the time limit rear performance more long may become unreliable, easily failure；Microcomputer Protection is sent out simultaneously
The exhibition cycle is very fast, and it is new model that 2 to three years just update, and Microcomputer Protection validity period is generally 80 to ten years, so
The protection device service life rear spare part if having part protective plug-in unit to break down more long is resulted in stop production already and not in stock
Hidden trouble.
The content of the invention
In order to overcome the shortcomings of existing microcomputer protecting device, the present invention provides a kind of combined method of microcomputer protecting device,
This method eliminates because microcomputer protecting device plug-in unit is damaged, and the false protection or the hidden trouble of tripping triggered without spare part,
Avoid the large area dead electricity and fluctuation accident of power network.
The present invention also provides the input protector and outlet protection device of the combined method for realizing microcomputer protecting device.
The combined method of microcomputer protecting device of the invention is that a former microcomputer relay for factory is protected in electric power system
When some plug-in unit is damaged in protection unit, access the former microcomputer of new microcomputer protective relay device compensation of another factory after
The function of electrical protective device broken parts.
With the difference of new microcomputer protective relay device connection, the combined method of this microcomputer protecting device is divided into two kinds of sides again
Method.
A kind of new microcomputer protective relay device of another factory of the combined method of microcomputer protecting device is to press
State what is accessed the step of successively；
I takes former microcomputer protective relay device apart from electric power system, and then the new microcomputer protective relay device for newly increasing is connect
Enter electric power system, then former microcomputer protective relay device concatenated with the current loop of new microcomputer protective relay device, former microcomputer after
The tail end of the three-phase current of electrical protective device is not drawn respectively, electric current will first through new microcomputer protective relay device after, then connect
Former microcomputer protective relay device；
II broken parts for researching and analysing two sets of protection devices of former microcomputer protective relay device and new microcomputer protective relay device are jumped
Lock loop diagram, finds out the broken parts protection of two sets of protection devices of former microcomputer protective relay device and new microcomputer protective relay device
The two ends of trip(ping) circuit access point, i.e., the first tripping operation contact and the second tripping operation contact, by the protection of new microcomputer protective relay device
The tripping operation outlet broken parts trip protection contact for accessing former microcomputer protecting device in parallel, by former microcomputer protective relay device
Broken parts protection control word is set to " 0 ", and normally non-broken parts protection is set to " 1 ", by new microcomputer protective relay device 4
The control word of replacement protection part be set to " 1 ", remaining control word of protection part for being not used to substitute is set to " 0 ", carries out whole
Body is debugged.
In order to test the reliability of the positive above method, two following steps are also carried out；
III data test, loop linkage test：
A. the electricity after being concatenated through two sets of different manufacturers protection devices of former microcomputer protective relay device and new microcomputer protective relay device
Stream sampling circuit sampling test：
The error amount of current sample meets the requirement of code ± 5% standard；
B is that different manufacturers protection device is connected tripping operation outlet through former microcomputer protective relay device and new microcomputer protective relay device
The outlet transmission test in loop：
Protection definite value is per 1.05 times of actions of phase and 0.95 times of detection of being failure to actuate, and transmission result is normal：
Protection definite value 5A, 1.05 times of 5.25A actions, 0.95 times of 4.75A are failure to actuate.
IV can carry out power transmission after above-mentioned reorganization, and electric current, relating rule are carried out after power transmission on-load：
The test of electric current and phasor is carried out after circuit power transmission on-load, test is normal, it is micro- with new through former microcomputer protective relay device
Two sets of different manufacturers protection devices of machine protective relaying device formally put into operation.
Another new microcomputer protective relay device of another factory of the combined method of microcomputer protecting device be by
It is following successively the step of access；
The current loop string of the former microcomputer protective relay device of the I new microcomputer protective relay device that will be newly increased and electric power system
Connect, the tail end of the three-phase current of former microcomputer protective relay device is drawn respectively, then electric current first through former microcomputer protective relay device after,
Directly connect new microcomputer protective relay device；
II broken parts for researching and analysing two sets of protection devices of former microcomputer protective relay device and new microcomputer protective relay device are jumped
Lock loop diagram, finds out the broken parts protection of two sets of protection devices of former microcomputer protective relay device and new microcomputer protective relay device
The two ends of trip(ping) circuit access point, i.e., the first tripping operation contact and the second tripping operation contact, by the protection of new microcomputer protective relay device
The tripping operation outlet trip protection contact for accessing former microcomputer protecting device in parallel, by the broken parts in former microcomputer protective relay device
Protection control word is set to " 0 ", and normally non-broken parts protection is set to " 1 ", and the replacement in new microcomputer protective relay device 4 is protected
The control word for protecting part is set to " 1 ", and remaining control word for being not used to the protection part for substituting is set to " 0 ", carries out overall debugging.
In order to test the reliability of the positive above method, two following steps are also carried out；
III data test, loop linkage test：
A. the electricity after being concatenated through two sets of different manufacturers protection devices of former microcomputer protective relay device and new microcomputer protective relay device
Stream sampling circuit sampling test：
The error amount of current sample meets the requirement of code ± 5% standard；
B is that different manufacturers protection device is connected tripping operation outlet through former microcomputer protective relay device and new microcomputer protective relay device
The outlet transmission test in loop：
Protection definite value is per 1.05 times of actions of phase and 0.95 times of detection of being failure to actuate, and transmission result is normal：
Protection definite value 5A, 1.05 times of 5.25A actions, 0.95 times of 4.75A are failure to actuate
IV can carry out power transmission after above-mentioned reorganization, and electric current, relating rule are carried out after power transmission on-load：
The test of electric current and phasor is carried out after circuit power transmission on-load, test is normal, it is micro- with new through former microcomputer protective relay device
Two sets of different manufacturers protection devices of machine protective relaying device formally put into operation.
Two kinds of devices of the combined method of this microcomputer protecting device are implemented in explanation below.
One kind is input protector, and it includes ground wire, zero line, current transformer with former microcomputer protective relay device, zero
Line is connected on ground wire, the current transformer A phases of current transformer, one end of current transformer B phases and current transformer C phases and ground wire
Connection, it is characterized in that：New microcomputer protective relay device, the input of the A phase coils of the device and the A phases of current transformer are increased newly
Other end connection, the input of the B phase coils of the device is connected with the other end of the B phases of current transformer, the C phases of the device
The input of coil is connected with the other end of the C phases of current transformer；
The input of the A phase coils of former microcomputer protective relay device connects with the tail end of the A phase coils of new microcomputer protective relay device
Connect, the input of the B phase coils of the device is connected with the tail end of the B phase coils of new microcomputer protective relay device, the C phases of the device
Coil input end is connected with the tail end of the C phase coils of new microcomputer protective relay device；
The tail end of the A phase coils of former microcomputer protective relay device, the tail end of B phase coils, the tail end of C phase coils link together,
Draw outside former microcomputer protecting device, be connected with zero line and be connected with ground wire.
One kind is outlet protection device, it include two tripping operation contacts of former microcomputer protective relay device, guard relay,
Normal opened contact, breaking coil, electrode line and negative line and connecting line；Two tripping operation contacts are the of former microcomputer protective relay device
One end of one tripping operation contact and the second tripping operation contact, the first tripping operation contact and the second tripping operation contact is in parallel, and connects with electrode line
Connect；The other end of the first tripping operation contact is connected with one end of the first pressing plate, second other end and second pressing plate for tripping contact
One end connects, and the other end of the other end of the first pressing plate and the second pressing plate is in parallel, and is connected with one end of guard relay, protects
Hold the other end of relay to be connected with one end of normal opened contact, normal opened contact contact is controlled by high-voltage switch gear state, normally opened to connect
Point the other end be connected with one end of breaking coil, the other end of breaking coil is connected with negative line, normal opened contact and trip line
Circle is arranged on high-voltage switch gear；
It is characterized in that：
The tripping operation contact of also new microcomputer protective relay device, one end for the contact that trips connects with the first tripping operation contact and the second tripping operation
Point point in parallel connection, the other end of the contact that trips is connected with the point in parallel of the first pressing plate and the second pressing plate.
The former microcomputer protecting device of above-mentioned input protector and outlet protection device is Beijing Qing Hua Ziguang Microcomputer Protection
Device DCAP-311, described new microcomputer protective relay device is the cubic microcomputer protective relay device CSC-213 in Beijing.
Beneficial effects of the present invention
The combined method and input protector of microcomputer protecting device of the invention and outlet protection device, solve power industry
Microcomputer protecting device is damaged because of part plug-in unit, but spare part not reproduction and the difficult problems that cannot process.Make use of simultaneously existing
Some protection devices and spare part are combined implementation, saved spare part purchase, redesign, perforate, distribution expense and transformation stop
The electric time.Eliminate because Microcomputer Protection plug-in unit is damaged, the false protection or the hidden trouble of tripping triggered without spare part, it is to avoid
The large area dead electricity of power network and fluctuation accident, it is ensured that the safe operation of power system, it is ensured that all more important production lines it is steady
Fixed operation, there is significant safety benefit and economic benefit.
Brief description of the drawings
Fig. 1 is the connection diagram of input protector electric current input circuit.
Fig. 2 is the connection diagram for exporting protection device tripping operation outlet loop.
Fig. 3 is the connection diagram of another input protector electric current input circuit.
In above-mentioned Fig. 1 and Fig. 3
1. ground wire, N. zero lines, 2. current transformer, 2.1. current transformer A phases, 2.2. current transformer B phases, 2.3. electricity
Current transformer C phases, 2.11.A phase terminals, 2.12.B phase terminals, 2.13.C phase terminals, 3. former microcomputer protective relay device,
3.1.A phase coil, 3.2.B phase coils, 3.3.C phase coils, 3.11. A phase terminals, 3.12.B phase terminals, 3.13.C phase terminals,
4. new microcomputer protective relay device, 4.1.A phase coils, 4.2.B phase coils, 4.3.C phase coils, its Central Plains microcomputer protective relay dress
Put 3 represent it is a table apparatus with the dotted line outside new microcomputer protective relay device 4.
In above-mentioned Fig. 2
5. electrode line, 6. negative line, 7. the first tripping operation contact, 8. the first pressing plate, 9. the second tripping operation contact, 10. the second pressing plate,
11. tripping operation contacts, 12. indicator lamps, 13. guard relays, 14. normal opened contacts, 15. breaking coils.
Specific embodiment
With reference to embodiment and its brief description of the drawings specific embodiment of the invention, but it is reason that following embodiments is
The solution present invention, is not limitation of the present invention.
Input protector embodiment one
The partial destruction of original former microcomputer protective relay device 3 of the present embodiment, with the new microcomputer protective relay device 4 for newly increasing
Compensate the function of broken parts.
The schematic diagram of the electric current input circuit of input protector is shown in Fig. 1, and the right in figure is protective current.It includes ground
Line 1, zero line N, current transformer 2 are connected on ground wire 1 with former microcomputer protective relay device 3, zero line N, and the electric current of current transformer 2 is mutual
One end of sensor A phases 2.1, current transformer B phases 2.2 and current transformer C phases 2.3 is connected with ground wire 1, it is characterized in that：It is newly-increased
New microcomputer protective relay device 4, the input of the A phase coils 4.1 of the device is through A phase terminals 2.11 and the A of current transformer 2
The other end of phase 2.1（Arrange earth terminal）Connection, the input of the B phase coils 4.2 of the device is mutual through B phase terminals 2.12 and electric current
The other end connection of the B phases 2.2 of sensor 2, the input of the C phase coils 4.3 of the device is through C phase terminals 2.13 and current transformer
The other end connection of 2 C phases 2.3；
The input of the A phase coils 3.1 of former microcomputer protective relay device 3 is through A phase terminals 3.11 and new microcomputer protective relay device 4
A phase coils 4.1 tail end connection, the input of the B phase coils 3.2 of the device protects through B phase terminals 3.12 with new microcomputer relay
The tail end connection of the B phase coils 4.2 of protection unit 4, the input of C phase coils 3.3 of the device through C phase terminals 3.13 and new microcomputer after
The tail end connection of the C phase coils 4.3 of electrical protective device 4；
The tail end of the A phase coils 3.1 of former microcomputer protective relay device 3, the tail end of B phase coils 3.2, the tail end of C phase coils 3.3 connect
It is connected together, draws outside former microcomputer protecting device 3, is connected with zero line N and is connected with ground wire 1
The new microcomputer protective relay device 4 of the present embodiment is Beijing four directions microcomputer protective relay device CSC-213, former microcomputer relay
Protection device 3 is Beijing Qing Hua Ziguang microcomputer protecting device DCAP-311.
Input protector embodiment two
The difference of the present embodiment and electric current input circuit protection device one, is the A phase coils of former microcomputer protective relay device 3
3.1st, B phase coils 3.2, the tail end of C phase coils 3.3 are drawn respectively, and so, new microcomputer protective relay device 4 can be concatenated directly
After former microcomputer protective relay device 3, two sets of series connection of the current loop of protection device are realized, see Fig. 3.
Outlet protection device embodiment
The outlet protection device tripping operation outlet loop of Fig. 2 descriptions is that the input protector electric current input circuit described with Fig. 1 is
Matching used two parts simultaneously, somebody is also considered as same equipment.Used by Fig. 1 be former microcomputer protective relay device 3 with it is new
The coiler part of micromechanical relay protection device 4, Fig. 2's is that former microcomputer protective relay device 3 is protected with new micromechanical relay
The contact portions of device 4, the outlet loop protection device that tripped during effect is inseparable from electric current input circuit protection device.
The present embodiment is two kinds of connections of protection device tripping operation outlet, and it includes two of former microcomputer protective relay device 3
Tripping operation contact, guard relay 13, normal opened contact 14, breaking coil 15, electrode line 5 and negative line 6 and connecting line.Two tripping operations
Contact is the first tripping operation tripping operation contact 9 of contact 7 and second of former microcomputer protective relay device 3, and the first tripping operation contact 7 and second is jumped
One end of lock contact 9 is in parallel, and is connected with electrode line 5；The other end of the first tripping operation contact 7 and one end of the first pressing plate 8 connect
Connect, the other end of the second tripping operation contact 9 is connected with one end of the second pressing plate 10, the other end of the first pressing plate 8 and the second pressing plate 10
The other end it is in parallel, and be connected with one end of guard relay 13, the other end of guard relay 13 and normal opened contact 15
One end is connected, and the contact of normal opened contact 14 is controlled by high-voltage switch gear state, the other end and the breaking coil 15 of normal opened contact 14
One end connects, and the other end of breaking coil 15 is connected with negative line 6, and normal opened contact 14 is arranged on high-voltage switch gear with breaking coil 15
On.
Indicator lamp 12 is connected between electrode line 5 and the first pressing plate 8 and the point in parallel of the second pressing plate 10.Electrode line 5 with
Voltage between negative line 6 is 220V.
The present embodiment is characterized in：The tripping operation contact 11 of new microcomputer protective relay device 4 also in parallel, tripping operation contact 11
One end be connected with the first tripping operation tripping operation contact 9 point in parallel of contact 7 and second, the other end and the first pressing plate 8 of tripping operation contact 11 and
The point in parallel connection of the second pressing plate 10.
The combined method embodiment one of microcomputer protecting device
The present embodiment is the combined method of different microcomputer protecting devices, the original former microcomputer protective relay device 3 of the present embodiment
Part plug-in unit is damaged, and the function of broken parts is compensated with the new microcomputer protective relay device 4 for newly increasing.
The present embodiment include it is following successively the step of：
I by the current loop string of the current loop of former microcomputer protective relay device 3 and the new microcomputer protective relay device 4 for newly increasing
Connect, the A phase coils 3.1 of former microcomputer protective relay device 3, B phase coils 3.2, the tail end of C phase coils 3.3 are not drawn respectively, only
It is to draw the point N after synthesis, therefore cannot behind concatenates protection device 4, so electric current will first through new microcomputer protective relay
After device 4, then former microcomputer protective relay device 3 of connecting.Exactly former microcomputer protective relay device 3 is taken apart from electric power system,
Then the new microcomputer protective relay device 4 for newly increasing is accessed electric power system, then former microcomputer protective relay device 3 and new microcomputer
The current loop concatenation of protective relaying device 4, is so achieved that two sets of concatenations of protection device current sampling circuit, referring to figure
1；
The II trip protection loop diagram for researching and analysing the broken parts of former microcomputer protective relay device 3, researchs and analyses new microcomputer relay
Protection device 4 will substitute the trip protection loop diagram of part, find out former microcomputer protective relay device 3 and filled with new microcomputer protective relay
Put 4 corresponding trip(ping) circuit access point, the i.e. two ends of Fig. 2 first tripping operation tripping operation contacts 9 of contact 7 and second, by new microcomputer relay
The trip protection outlet broken parts trip protection contact for accessing former microcomputer protecting device 3 in parallel of protection device 4, by former microcomputer
Broken parts protection control word in protective relaying device 3 is set to " 0 ", and normally non-broken parts protection is set to " 1 ", (this 2 points
Do not indicate in fig. 2, be that definite value in device is set, be to be manually set, cannot be represented in figure) by new microcomputer protective relay
The control word of the replacement protection part in device 4 is set to " 1 ", and remaining control word for being not used to the protection part for substituting is set to " 0 ",
Carry out overall debugging（Refer to current sample test）.
III data test, loop linkage test：
A. after being concatenated through 4 liang of set different manufacturers protection devices of former microcomputer protective relay device 3 and new microcomputer protective relay device
Current sampling circuit sampling test：
The error amount of current sample meets the requirement of code ± 5% standard；
B is that different manufacturers protection device is connected and trips out through former microcomputer protective relay device 3 and new microcomputer protective relay device 4
The outlet transmission test in mouth loop：
Protection definite value is per 1.05 times of actions of phase and 0.95 times of detection of being failure to actuate, and transmission result is normal：
Protection definite value 5A, 1.05 times of 5.25A actions, 0.95 times of 4.75A are failure to actuate
IV can carry out power transmission after above-mentioned reorganization, and electric current, relating rule are carried out after power transmission on-load：
The test of electric current and phasor is carried out after circuit power transmission on-load, test is normal, it is micro- with new through former microcomputer protective relay device 3
4 liang of set different manufacturers protection devices of machine protective relaying device formally put into operation, and defencive function is perfect.
The combined method embodiment two of microcomputer protecting device
The combination of different microcomputer protecting devices is required：4 liang of sets of former microcomputer protective relay device 3 and new microcomputer protective relay device
As long as protection device has a set of CT buttock lines open-ended to be capable of achieving, the combined method embodiment of the present embodiment and microcomputer protecting device
One difference is：The present embodiment is A phase coils 3.1, B phase coils 3.2, the C phase coils of former microcomputer protective relay device 3
3.3 tail end is drawn respectively（Three lines）, so, new microcomputer protective relay device 4 can directly be connected on former microcomputer protective relay
After device 3, two sets of series connection of the current loop of protection device are realized, be in Fig. 3 rights referring to Fig. 3.Other are filled with Microcomputer Protection
The combined method embodiment one put is identical.
Claims (9)
1. a kind of combined method of microcomputer protecting device, it is a former microcomputer protective relay dress for factory in electric power system
When some plug-in unit is damaged in putting, the former microcomputer relay of new microcomputer protective relay device compensation for accessing another factory is protected
The function of protection unit broken parts.
2. the combined method of microcomputer protecting device according to claim 1, it is characterized in that another factory is new micro-
Machine protective relaying device by it is following successively the step of access；
I takes former microcomputer protective relay device apart from electric power system, and then the new microcomputer protective relay device for newly increasing is connect
Enter electric power system, then former microcomputer protective relay device concatenated with the current loop of new microcomputer protective relay device, former microcomputer after
The tail end of the three-phase current of electrical protective device is not drawn respectively, electric current will first through new microcomputer protective relay device after, then connect
Former microcomputer protective relay device；
II broken parts for researching and analysing two sets of protection devices of former microcomputer protective relay device and new microcomputer protective relay device are jumped
Lock loop diagram, finds out the broken parts protection of two sets of protection devices of former microcomputer protective relay device and new microcomputer protective relay device
The two ends of trip(ping) circuit access point, i.e., the first tripping operation contact and the second tripping operation contact, by the protection of new microcomputer protective relay device
The tripping operation outlet broken parts trip protection contact for accessing former microcomputer protecting device in parallel, by former microcomputer protective relay device
Broken parts protection control word is set to " 0 ", and normally non-broken parts protection is set to " 1 ", by new microcomputer protective relay device
The control word for substituting protection part is set to " 1 ", and remaining control word for being not used to the protection part for substituting is set to " 0 ", carries out entirety
Debugging.
3. the combined method of microcomputer protecting device according to claim 2, it is characterized in that：Also following two steps：
III data test, loop linkage test：
A. the electricity after being concatenated through two sets of different manufacturers protection devices of former microcomputer protective relay device and new microcomputer protective relay device
Stream sampling circuit sampling test：
The error amount of current sample meets the requirement of code ± 5% standard；
B is that different manufacturers protection device is connected tripping operation outlet through former microcomputer protective relay device and new microcomputer protective relay device
The outlet transmission test in loop：
Protection definite value is per 1.05 times of actions of phase and 0.95 times of detection of being failure to actuate, and transmission result is normal：
Protection definite value 5A, 1.05 times of 5.25A actions, 0.95 times of 4.75A are failure to actuate
IV can carry out power transmission after above-mentioned reorganization, and electric current, relating rule are carried out after power transmission on-load：
The test of electric current and phasor is carried out after circuit power transmission on-load, test is normal, it is micro- with new through former microcomputer protective relay device
Two sets of different manufacturers protection devices of machine protective relaying device formally put into operation.
4. the combined method of microcomputer protecting device according to claim 1, it is characterized in that another factory is new micro-
Machine protective relaying device by it is following successively the step of access；
The current loop string of the former microcomputer protective relay device of the I new microcomputer protective relay device that will be newly increased and electric power system
Connect, the tail end of the three-phase current of former microcomputer protective relay device is drawn respectively, then electric current first through former microcomputer protective relay device after,
Directly connect new microcomputer protective relay device；
II broken parts for researching and analysing two sets of protection devices of former microcomputer protective relay device and new microcomputer protective relay device are jumped
Lock loop diagram, finds out the broken parts protection of two sets of protection devices of former microcomputer protective relay device and new microcomputer protective relay device
The two ends of trip(ping) circuit access point, i.e., the first tripping operation contact and the second tripping operation contact, by the protection of new microcomputer protective relay device
The tripping operation outlet trip protection contact for accessing former microcomputer protecting device in parallel, by the broken parts in former microcomputer protective relay device
Protection control word is set to " 0 ", and normally non-broken parts protection is set to " 1 ", by the replacement protection in new microcomputer protective relay device
Partial control word is set to " 1 ", and remaining control word for being not used to the protection part for substituting is set to " 0 ", carries out overall debugging.
5. the combined method of microcomputer protecting device according to claim 4, it is characterized in that：Also following two steps：
III data test, loop linkage test：
A. the electricity after being concatenated through two sets of different manufacturers protection devices of former microcomputer protective relay device and new microcomputer protective relay device
Stream sampling circuit sampling test：
The error amount of current sample meets the requirement of code ± 5% standard；
B is that different manufacturers protection device is connected tripping operation outlet through former microcomputer protective relay device and new microcomputer protective relay device
The outlet transmission test in loop：
Protection definite value is per 1.05 times of actions of phase and 0.95 times of detection of being failure to actuate, and transmission result is normal：
Protection definite value 5A, 1.05 times of 5.25A actions, 0.95 times of 4.75A are failure to actuate
IV can carry out power transmission after above-mentioned reorganization, and electric current, relating rule are carried out after power transmission on-load：
The test of electric current and phasor is carried out after circuit power transmission on-load, test is normal, it is micro- with new through former microcomputer protective relay device
Two sets of different manufacturers protection devices of machine protective relaying device formally put into operation.
6. a kind of input protector, it includes ground wire, zero line, current transformer and former microcomputer protective relay device, and zero line connects
In ground wire, the current transformer A phases of current transformer, one end of current transformer B phases and current transformer C phases and ground wire connect
Connect, it is characterized in that：New microcomputer protective relay device, the input of the A phase coils of the device and the A phases of current transformer are increased newly
The other end is connected, and the input of the B phase coils of the device is connected with the other end of the B phases of current transformer, the C phase lines of the device
The input of circle is connected with the other end of the C phases of current transformer；
The input of the A phase coils of former microcomputer protective relay device connects with the tail end of the A phase coils of new microcomputer protective relay device
Connect, the input of the B phase coils of the device is connected with the tail end of the B phase coils of new microcomputer protective relay device, the C phases of the device
Coil input end is connected with the tail end of the C phase coils of new microcomputer protective relay device；
The tail end of the A phase coils of former microcomputer protective relay device, the tail end of B phase coils, the tail end of C phase coils link together,
Draw outside former microcomputer protecting device, be connected with zero line and be connected with ground wire.
7. input protector according to claim 6, it is characterized in that：Described former microcomputer protecting device is Beijing Tsing-Hua University
Purple light microcomputer protecting device DCAP-311, described new microcomputer protective relay device is Beijing four directions microcomputer protective relay device
CSC-213。
8. a kind of outlet protection device, it includes two tripping operation contacts of former microcomputer protective relay device, guard relay, normally opened
Contact, breaking coil, electrode line and negative line and connecting line；Two tripping operation contacts are the first jumps of former microcomputer protective relay device
One end of lock contact and the second tripping operation contact, the first tripping operation contact and the second tripping operation contact is in parallel, and is connected with electrode line；The
The other end of one tripping operation contact is connected with one end of the first pressing plate, and the other end of the second tripping operation contact and one end of the second pressing plate connect
Connect, the other end of the other end of the first pressing plate and the second pressing plate is in parallel, and is connected with one end of guard relay, keeps relay
The other end of device is connected with one end of normal opened contact, and normal opened contact contact is controlled by high-voltage switch gear state, normal opened contact it is another
One end is connected with one end of breaking coil, and the other end of breaking coil is connected with negative line, and normal opened contact is installed with breaking coil
On high-voltage switch gear；
It is characterized in that：
The tripping operation contact of also new microcomputer protective relay device, one end for the contact that trips connects with the first tripping operation contact and the second tripping operation
Point point in parallel connection, the other end of the contact that trips is connected with the point in parallel of the first pressing plate and the second pressing plate.
9. outlet protection device according to claim 8, it is characterized in that：Described former microcomputer protecting device is Beijing Tsing-Hua University
Purple light microcomputer protecting device DCAP-311, described new microcomputer protective relay device is Beijing four directions microcomputer protective relay device
CSC-213。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611174660.7A CN106786367B (en) | 2016-12-19 | 2016-12-19 | The combined method and input protector and outlet protective device of microcomputer protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611174660.7A CN106786367B (en) | 2016-12-19 | 2016-12-19 | The combined method and input protector and outlet protective device of microcomputer protecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106786367A true CN106786367A (en) | 2017-05-31 |
| CN106786367B CN106786367B (en) | 2019-03-29 |
Family
ID=58889891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611174660.7A Active CN106786367B (en) | 2016-12-19 | 2016-12-19 | The combined method and input protector and outlet protective device of microcomputer protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106786367B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103279520A (en) * | 2013-05-28 | 2013-09-04 | 国家电网公司 | Power substation secondary system failure reconnaissance method |
| CN105065639A (en) * | 2015-06-19 | 2015-11-18 | 北京唐智科技发展有限公司 | Resonance rupture automatic reconnoitering, identification and prevention monitoring method for gear case and transmission system |
| US20160121783A1 (en) * | 2014-11-05 | 2016-05-05 | Rohm Co., Ltd. | Light emitting element driving device, light emitting device, and vehicle |
| CN105678469A (en) * | 2016-01-29 | 2016-06-15 | 南京市产品质量监督检验院 | Risk assessment method for relay protection equipment in intelligent substation |
-
2016
- 2016-12-19 CN CN201611174660.7A patent/CN106786367B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103279520A (en) * | 2013-05-28 | 2013-09-04 | 国家电网公司 | Power substation secondary system failure reconnaissance method |
| US20160121783A1 (en) * | 2014-11-05 | 2016-05-05 | Rohm Co., Ltd. | Light emitting element driving device, light emitting device, and vehicle |
| CN105065639A (en) * | 2015-06-19 | 2015-11-18 | 北京唐智科技发展有限公司 | Resonance rupture automatic reconnoitering, identification and prevention monitoring method for gear case and transmission system |
| CN105678469A (en) * | 2016-01-29 | 2016-06-15 | 南京市产品质量监督检验院 | Risk assessment method for relay protection equipment in intelligent substation |
Non-Patent Citations (1)
| Title |
|---|
| 李中政: "变电继电保护安全性及常见问题", 《低碳世界》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106786367B (en) | 2019-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105572533B (en) | Method for identifying transient fault and permanent fault | |
| CN107884665A (en) | Prevent the device and method of generator outlet voltage transformer turn-to-turn short circuit false tripping machine | |
| CN209561900U (en) | Intelligent power supply and distribution system | |
| CN203535152U (en) | Recessive defect detecting device for external starting contacts of failure protection equipment | |
| CN108418173A (en) | A kind of arc-fault circuit interrupter | |
| CN108493903A (en) | A kind of pumping energy reactor differential protecting method and device without voltage | |
| CN106786367A (en) | The combined method and input protector of microcomputer protecting device and outlet protection device | |
| CN103887775A (en) | Distribution network microcomputer protection system integrating distribution automation master station dynamic setting | |
| CN105186490B (en) | Breaker and open-circuit system with zero curve and phase line burn out detection function | |
| CN104267276B (en) | Method high-tension motor longitudinal differential protection checked with low pressure locked rotor current | |
| CN201004353Y (en) | External serial clearance arrester with failure indication device | |
| CN207010200U (en) | Prevent the powered shearing device of transformer station's relay protection debugging primary equipment | |
| CN105024341A (en) | Circuit breaker and circuit break system having zero-line disconnection and open-phase protection function | |
| CN208174245U (en) | Double shield TBM mating electrical cabinet detection of electrical leakage grading protection system | |
| CN205029315U (en) | Direct -current overvoltage protection circuit | |
| CN104316823B (en) | A kind of method and device of defects detection | |
| CN105811368A (en) | Self-adaptive zero line broken protection device and system | |
| CN207426664U (en) | Voltage detection type earth leakage protective device | |
| CN110504756A (en) | A kind of ring network cabinet protective device control system | |
| CN205992731U (en) | A kind of arc light protecting system with selectivity trip avoidance function | |
| CN211720258U (en) | Transformer heavy gas protection external tripping circuit | |
| CN206195338U (en) | Bus differential protection prevents unwanted tripping device | |
| Sattari et al. | High reliability electrical distribution system for industrial facilities | |
| CN208028574U (en) | A kind of electric energy security intelligent monitoring platform | |
| CN206114818U (en) | Insulating circuit of detection line |
Legal Events
| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |