CN205265242U - Computer protector is add and is reclosed after accelerated protection device - Google Patents
Computer protector is add and is reclosed after accelerated protection device Download PDFInfo
- Publication number
- CN205265242U CN205265242U CN201521016031.2U CN201521016031U CN205265242U CN 205265242 U CN205265242 U CN 205265242U CN 201521016031 U CN201521016031 U CN 201521016031U CN 205265242 U CN205265242 U CN 205265242U
- Authority
- CN
- China
- Prior art keywords
- circuit
- protection device
- module
- microcomputer protection
- sel
- 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.)
- Active
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a computer protector is add and is reclosed after accelerated protection device. The utility model discloses the computer protector recloses to throw and moves back input port and change over switch and connect into to reclose and throw the demould piece, it connects into and recloses the shutting module to reclose shutting input port and control switch, breaker state input port and make contact are connected formation breaker state module, reclose export output port through the 3rd signal relay, protection section with prevent jumping control circuit and be connected formation and reclose the export module, the low -voltage, cross the current output terminal mouth and pass through the the first signal relay, formation voltage quick -break module is connected with tripping operation control circuit to first clamp plate, cross the current output terminal mouth through the 2nd signal relay, the second clamp plate is connected and was formed current module with tripping operation control circuit, after -acceleration output port passes through fourth signal relay, formation after accelerated protection module is connected with tripping operation control circuit to the third clamp plate. The utility model has the characteristics of simple structure, high, the easy maintenance of reliability.
Description
Technical field
The utility model belongs to for power distribution protection technical field, relates to the microcomputer of a kind of height simple in structure, reliable, easy careProtector is set up post reclosing acceleration protective device.
Background technology
Supply line safe, reliably affecting daily production and life, in order to improve trolley line transmission of electricity and trolley line confessionThe reliability of electric line power supply, has all taked auto recloser. Overhead transmission line may occur this in runningSituation, reclosing or closing by hand close in fault, accelerate afterwards in this case move immediately according to electric power code regulation,Excision breaker rapidly, in order to avoid expansion accident scope causes device damage. But, for go into operation such as transformer station early fromMoving reclosing device (as Fig. 1), in general station, all protective relaying devices all use traditional electrical electromagnetic relay, have relayAgeing of performance (may cause protection malfunction or tripping), spare unit part buying difficulty (part relay is without manufacturer production), maintenanceThe difficulties such as maintenance and protective debugging workload are large, have had a strong impact on reliability and maintenance cost for distribution. And existing newly-built changeThe auto recloser in power station also has the Microcomputer Protection of employing device to substitute traditional relay, but carries the micro-of after accelerated protectionMotor protector cost is high, is difficult to extensively promote the use of; And lower-cost Microcomputer Protection device is as the SEL-351 protection of SEL seriesDevice does not but possess after accelerated protection function, if there is no after accelerated protection function, when circuit re-switching is in permanent fault stateWhen lower, breaker can not disconnect in time, and fault will have influence on whole electric power system or cause upper level to trip accident soExtension, serious threat electric power system safe power supply, therefore still needs loaded down with trivial details intermediate link and traditional electrical electromagnetic relayRealize after accelerated protection function, reliability and the easy care performance of comparing traditional electrical electromagnetic relay device promote little.
Utility model content
The purpose of this utility model is to provide the Microcomputer Protection device of a kind of height simple in structure, reliable, easy care to set up heavilyCombined floodgate after accelerated protection device.
The purpose of this utility model is achieved in that and comprises Microcomputer Protection device, the reclosing throwing of described Microcomputer Protection deviceMoving back input port one end is connected and the other end and negative control with positive control bus circuit by change-over switch first and the 3rd contactBus circuit is connected to form reclosing throwing and moves back module, reclosing block input port one end and the positive control of described Microcomputer Protection deviceBus circuit connects and the other end is connected to form reclosing by gauge tap second and the 4th contact and negative control bus circuitLock modules, circuit-breaker status input port one end of described Microcomputer Protection device connects by moving together contact and positive control bus circuitConnect and the other end and negative control bus circuit are connected to form circuit-breaker status module, the reclosing outlet of described Microcomputer Protection device is defeatedOutbound port one end is connected with positive control bus circuit and the other end is cut into slices and anti-jump control by the 3rd signal relay, protection successivelyLoop circuit processed is connected to form reclosing outlet module, the low-voltage of described Microcomputer Protection device, overcurrent output port one end withPositive control bus circuit connects and the other end connects with tripping operation control loop circuit by first signal relay, the first pressing plate successivelyConnect and form voltage quick-break module, overcurrent output port one end of described Microcomputer Protection device is connected with positive control bus circuit and is anotherOne end is connected to form overcurrent module by secondary signal relay, the second pressing plate with tripping operation control loop circuit successively, described inRear acceleration output port one end of Microcomputer Protection device is connected with positive control bus circuit and the other end continues by the 4th signal successivelyElectrical equipment, the 3rd pressing plate are connected to form after accelerated protection module with tripping operation control loop circuit.
Compared with prior art, its advantage of the utility model is:
1, by unified the electromagnetic relays such as multiple switching relay, post-accelerated relay, the time relay, electric current relay wholeClose in a Microcomputer Protection device, thereby the quantity of minimizing relay configuration improves the reliability and maintainability installing;
2, Microcomputer Protection device reduces the cost of whole device cheaply;
3, do not possess post reclosing acceleration defencive function for low cost Microcomputer Protection device, but there is programming in logic function,Combine with prior art by preparation Microcomputer Protection device input port and output port, by each in former after accelerated protection configurationThe mated condition of element action and condition are write as logic and are enrolled in outlet equation, allow Microcomputer Protection device realize post reclosing accelerationDefencive function, thus the sensitivity of device and the reliability of device improved.
Brief description of the drawings
Fig. 1 is electromagnetic type relay reclosing protection philosophy figure in prior art;
Fig. 2 is the utility model schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described, but must not adds the utility model by any wayWith restriction, any change or the improvement done based on the utility model training centre, all belong to protection domain of the present utility model.
As shown in Figure 2, the utility model comprises Microcomputer Protection device SEL, and the reclosing throwing of described Microcomputer Protection device SEL is moved back defeatedInbound port IN102 one end by change-over switch ZK first and the 3rd contact is connected with positive control bus+KM circuit and the other end andNegative control bus-KM circuit is connected to form reclosing throwing and moves back module, the reclosing block input port of described Microcomputer Protection device SELIN103 one end is connected with positive control bus+KM circuit and the other end passes through gauge tap KK second and the 4th contact and negative controlBus-KM circuit is connected to form reclosing block module, the circuit-breaker status input port IN101 of described Microcomputer Protection device SELOne end is connected with positive control bus+KM circuit by moving together contact DL and the other end and negative control bus-KM circuit are connected to formCircuit-breaker status module, reclosing outlet output port OUT102 one end and the positive control bus+KM of described Microcomputer Protection device SELCircuit connects and the other end is connected shape by the 3rd signal relay 3XJ, protection section 1QP with anti-jump control loop circuit successivelyBecome reclosing outlet module, low-voltage, overcurrent output port OUT101 one end and the positive control mother of described Microcomputer Protection device SELLine+KM circuit connects and the other end passes through first signal relay 1XJ, the first pressing plate 1LP and tripping operation control loop circuit successivelyBe connected to form voltage quick-break module, overcurrent output port OUT103 one end of described Microcomputer Protection device SEL and positive control bus+KM circuit connects and the other end is connected with tripping operation control loop circuit by secondary signal relay 2XJ, the second pressing plate 2LP successivelyForm overcurrent module, rear acceleration output port OUT104 one end of described Microcomputer Protection device SEL and positive control bus+KM circuitAfter connection and the other end are connected to form with tripping operation control loop circuit by the 4th signal relay 4XJ, the 3rd pressing plate 3LP successivelyAcceleration protection module. Described Microcomputer Protection device SEL is SEL-351A controller.
Described anti-jump control loop comprises that one end is connected with positive control bus+KM circuit and the other end continues by anti-jump successivelyThe switch knob HA structure that electrical equipment normally opened contact TBJ, anti-trip relay potential winding TBJ-U are connected with negative control bus-KM circuitBecome.
Described reclosing outlet module is in parallel with the switch knob HA of anti-jump control loop.
Described tripping operation control loop comprises that the 6th pin 6 is connected with positive control bus+KM circuit and the 7th pin 7 and anti-jumpGauge tap KK, anti-trip relay current coil TBJ-I and anti-trip relay that relay current coil TBJ-I circuit connectsCurrent coil TBJ-I opens contact DL, tripping relay coil TQ and negative control bus-KM circuit connects and composes by moving successively.
Described voltage quick-break module, overcurrent module and after accelerated protection module are in parallel to be opened with the control of tripping operation control loopClose KK parallel connection.
The 25 pin Z25 of described Microcomputer Protection device SEL is connected with positive control bus+KM circuit and the 26 drawsPin Z26 and negative control bus-KM circuit are connected to form protection period power module.
The three-phase current of the reclosing current loop of the utility model flows out with microcomputer and protects from current transformer 2LH secondary sideProtect after device SEL is Y-connection and merge into a N line ground connection.
The low-pressure side WV of the reclosing voltage circuit of the utility model by isolation switch auxiliary contact respectivelyBe connected with the 9th pin Z09, the tenth pin Z10, the 11 pin Z11 circuit of Microcomputer Protection device SEL.
The utility model operation principle and the course of work:
The utility model is by upgrading traditional electrical magnetic-type relay protector to upgrade to Microcomputer Automation protector,By unified the electromagnetic relays such as the multiple switching relay in original device, post-accelerated relay, the time relay, electric current relay wholeClose in a Microcomputer Protection device, thereby reduce the quantity of relay configuration, reduce between each relay because of action generation itselfThe error producing when error and interoperation, reduces the complexity of reclosing device thereby reach, with improve its reliability andMaintainable; Meanwhile, by adopting Microcomputer Protection device cheaply such as SEL-351, to reduce the cost of whole device, and pinLow cost Microcomputer Protection device is not possessed to post reclosing acceleration defencive function, but there is programming in logic function, can arrange flexiblyLogical equation reaches protection effect, by flexible preparation Microcomputer Protection device input port and output port, former rear acceleration is protectedProtect the mated condition of each element action in configuration and condition and write as logic and enroll in outlet equation, allow Microcomputer Protection device realize heavyCombined floodgate after accelerated protection function, thus the sensitivity of device and the reliability of device improved, stop the phenomenon of a mistake central signal,Reduce interruption maintenance number of times. Therefore, the utlity model has the feature of simple in structure, reliable height, easy care.
As shown in Figure 2,110kV always falls and adopts SEL-351 Microcomputer Protection device by Microcomputer Protection device input port, outputMouth combines with available circuit, replaces multiple switching relay, post-accelerated relay, the time relay, electric current relay in Fig. 1Deng electromagnetic relay; By Microcomputer Protection device inside programming with combine with available circuit, realize after accelerated protection function. MicrocomputerThe reclosing of protector SEL is thrown and is moved back input port IN102 one end by change-over switch ZK first and the 3rd contact and positive control motherLine+KM circuit connection and the other end and negative control bus-KM circuit are connected to form reclosing throwing and move back module, described Microcomputer Protection deviceReclosing block input port IN103 one end of SEL is connected with positive control bus+KM circuit and the other end passes through gauge tap KKSecond and the 4th contact and negative control bus-KM circuit be connected to form reclosing block module, described Microcomputer Protection device SEL's is disconnectedDevice state input port IN101 one end, road is connected with positive control bus+KM circuit by moving together contact DL and the other end and negative controlBus-KM circuit processed is connected to form circuit-breaker status module, the reclosing outlet output port of described Microcomputer Protection device SELOUT102 one end is connected with positive control bus+KM circuit and the other end is cut into slices by the 3rd signal relay 3XJ, protection successively1QP and anti-jump control loop circuit are connected to form reclosing outlet module, low-voltage, the overcurrent of described Microcomputer Protection device SELOutput port OUT101 one end be connected with positive control bus+KM circuit and the other end successively by first signal relay 1XJ, theOne pressing plate 1LP is connected to form voltage quick-break module with tripping operation control loop circuit, the overcurrent output of described Microcomputer Protection device SELPort OUT103 one end is connected with positive control bus+KM circuit and the other end is pressed by secondary signal relay 2XJ, second successivelyPlate 2LP is connected to form overcurrent module, the rear acceleration output port of described Microcomputer Protection device SEL with tripping operation control loop circuitOUT104 one end is connected with positive control bus+KM circuit and the other end passes through the 4th signal relay 4XJ, the 3rd pressing plate successively3LP is connected to form after accelerated protection module with tripping operation control loop circuit. After deliberation, built on stilts at the 35kV at the total step-down of 110kV stationIn circuit SEL-351 protective device, do following logic, correct through debugging protection action situation: the protection of 35kV overhead transmission line arrangesFor low-voltage quick-break tripping operation in 0.5 second, overcurrent tripping operation in 1.6 seconds, reclosing action in 1 second, when line fault, protection action tripping operation, withTime automatic reclosing protection move in breaker closing, if breaker closes in permanent fault, after accelerated protection action tripping is disconnectedRoad device.
In SEL-351, complete the rear Accelerated trip logic of closing in permanent fault with following logical statement:
1) 52A=IN1 breaker auxiliary contact state is incorporated into device by IN1 contact. When breaker is while dividing position, 52A,The equal set of IN1 is logical zero; In the time that breaker is co-bit, the equal set of 52A, IN1 is logical one.
2) SV1=! IN1, SV1PU=0, SV1DO=90 wherein "! " be logic NOT operator. When breaker is while dividing position, inBetween variable SV1 set be logical one, that is to say breaker divide position be the entry condition of intermediate variable SV1; When breaker is co-bitTime, intermediate variable SV1 set is logical zero. Intermediate variable SV1 starts (SV1PU) in zero second, keeps 90 cycle/1.8 second (SV1DO=90) auto-returned after. SV1DO is set to 90 cycle/1.8 second herein, be mainly to consider that reclosing actuation time is 1 second,After adding the rear breaker time of protection action, breaker auxiliary contact displacement time and reclosing action, breaker closesLock time, breaker auxiliary contact displacement time, and some allowances, to guarantee the reliable execution of logic.
3) SV4=SV1T*IN1*50P2, SV4PU=0, SV4DO=50,50P2 is alternate specified time current protection secondSection, has been set to overcurrent protection here and has started. Before breaker 100 cycles, for a point position, be co-bit afterwards, and overcurrent protectionStart, SV4 set is logical one. Wherein SV1T*IN1 described breaker auxiliary contact in 2 seconds by assigning to the process of closing.
Intermediate variable SV4 starts (SV2PU=0) in zero second, keeps auto-returned behind 50 cycle/1 second (SV2DO=50). ThisThe SV4DO of place is set to 50 cycles, is mainly to consider that SV4T acts on outlet tripping operation, if this contact retention time is less, hasMay there is the situation that protective device outlet contact first disconnects than breaker auxiliary contact, will be connect by protective device outlet like thisPoint carrys out arc extinguishing, if this outlet contact rating not will burn-back point.
4) OUT104=SV4T, SV4T set is to be exported by OUT4 after logical one, OUT4 is linked in circuit breaker trip loopAccelerated trip function after completing.
Requirement according to power system to relay protection, enters automatic reclosing of the present utility model and post reclosing accelerationRow reliability, rapidity and sensitivity verification. Learn by verification, in the time that overhead transmission line breaks down, protective device will be 1.6Excision fault in second, through after 1 second, breaker being overlapped, if while coinciding with permanent fault, when protective device is not withThe action cut-off breaker of limit non-selectivity.
Claims (9)
1. Microcomputer Protection device is set up a post reclosing acceleration protective device, it is characterized in that comprising Microcomputer Protection device (SEL), instituteState Microcomputer Protection device (SEL) reclosing throw move back input port (IN102) one end by change-over switch (ZK) first and the 3rd touchPoint is connected with positive control bus (+KM) circuit and the other end and negative control bus (KM) circuit are connected to form reclosing throwing and move back mouldPiece, reclosing block input port (IN103) one end of described Microcomputer Protection device (SEL) and positive control bus (+KM) circuit connectConnect and the other end is connected to form reclosing and is closed by gauge tap (KK) second and the 4th contact and negative control bus (KM) circuitLock module, circuit-breaker status input port (IN101) one end of described Microcomputer Protection device (SEL) by moving together contact (DL) with justControl bus (+KM) circuit connection and the other end and negative control bus (KM) circuit are connected to form circuit-breaker status module, described inReclosing outlet output port (OUT102) one end of Microcomputer Protection device (SEL) is connected with positive control bus (+KM) circuit and is anotherOne end is connected to form reclosing by the 3rd signal relay (3XJ), protection section (1QP) with anti-jump control loop circuit successivelyOutlet module, low-voltage, overcurrent output port (OUT101) one end and the positive control bus of described Microcomputer Protection device (SEL) (+KM) circuit connection and the other end are successively by first signal relay (1XJ), the first pressing plate (1LP) and tripping operation control loop electricityRoad is connected to form voltage quick-break module, overcurrent output port (OUT103) one end of described Microcomputer Protection device (SEL) with just controlBus processed (+KM) circuit connects and the other end is controlled with tripping operation by secondary signal relay (2XJ), the second pressing plate (2LP) successivelyLoop circuit processed is connected to form overcurrent module, rear acceleration output port (OUT104) one end of described Microcomputer Protection device (SEL)Be connected with positive control bus (+KM) circuit and the other end successively by the 4th signal relay (4XJ), the 3rd pressing plate (3LP) withTripping operation control loop circuit is connected to form after accelerated protection module.
2. Microcomputer Protection device according to claim 1 is set up post reclosing acceleration protective device, it is characterized in that described micro-Motor protector (SEL) is SEL-351A controller.
3. Microcomputer Protection device according to claim 1 and 2 is set up post reclosing acceleration protective device, described in it is characterized in thatAnti-jump control loop comprises that one end is connected with positive control bus (+KM) circuit and the other end is often opened tactile by anti-trip relay successivelyThe switch knob (HA) that point (TBJ), anti-trip relay potential winding (TBJ-U) are connected with negative control bus (KM) circuit forms.
4. Microcomputer Protection device according to claim 1 is set up post reclosing acceleration protective device, it is characterized in that described heavyCombined floodgate outlet module is in parallel with the switch knob (HA) of anti-jump control loop.
5. Microcomputer Protection device according to claim 1 and 2 is set up post reclosing acceleration protective device, described in it is characterized in thatTripping operation control loop comprises that the 6th pin (6) is connected and the 7th pin (7) and anti-trip relay with positive control bus (+KM) circuitGauge tap (KK), anti-trip relay current coil (TBJ-I) and anti-trip relay that current coil (TBJ-I) circuit connectsCurrent coil (TBJ-I) connects by moving contact (DL), tripping relay coil (TQ) and negative control bus (KM) circuit opened successivelyConnect formation.
6. Microcomputer Protection device according to claim 5 is set up post reclosing acceleration protective device, it is characterized in that described electricityPress quick-break module, overcurrent module and after accelerated protection module in parallel in parallel with the gauge tap (KK) of tripping operation control loop.
7. Microcomputer Protection device according to claim 1 and 2 is set up post reclosing acceleration protective device, described in it is characterized in thatThe 25 pin (Z25) of Microcomputer Protection device (SEL) is connected and the 26 pin with positive control bus (+KM) circuit(Z26) be connected to form protection period power module with negative control bus (KM) circuit.
8. Microcomputer Protection device according to claim 1 and 2 is set up post reclosing acceleration protective device, it is characterized in that overlappingThe three-phase current in brake current loop flows out with Microcomputer Protection device (SEL) and is after Y-connection from current transformer (2LH) secondary sideMerge into a N line ground connection.
9. Microcomputer Protection device according to claim 1 and 2 is set up post reclosing acceleration protective device, it is characterized in that overlappingThe low-pressure side WV of lock voltage circuit draws with the 9th of Microcomputer Protection device (SEL) respectively by isolation switch auxiliary contactPin (Z09), the tenth pin (Z10), the 11 pin (Z11) circuit connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016031.2U CN205265242U (en) | 2015-12-09 | 2015-12-09 | Computer protector is add and is reclosed after accelerated protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016031.2U CN205265242U (en) | 2015-12-09 | 2015-12-09 | Computer protector is add and is reclosed after accelerated protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205265242U true CN205265242U (en) | 2016-05-25 |
Family
ID=56006749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521016031.2U Active CN205265242U (en) | 2015-12-09 | 2015-12-09 | Computer protector is add and is reclosed after accelerated protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205265242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113140971A (en) * | 2021-04-27 | 2021-07-20 | 广东韶钢松山股份有限公司 | Anti-vibration high tension switchgear circuit breaker anti-jumping system |
-
2015
- 2015-12-09 CN CN201521016031.2U patent/CN205265242U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113140971A (en) * | 2021-04-27 | 2021-07-20 | 广东韶钢松山股份有限公司 | Anti-vibration high tension switchgear circuit breaker anti-jumping system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107433883B (en) | Railway traction power supply arm integrated monitoring system | |
| CN101662144A (en) | Feeder automation processing method and device of distribution network | |
| CN110148930A (en) | The method of fault location and topology automatic identification in distribution network | |
| CN201698628U (en) | Simulator of circuit breaker | |
| CN204858540U (en) | Circuit breaker serial -type is electric prevents rebound way | |
| CN102520350B (en) | Circuit for determining lockout states of lockout relays | |
| CN110601350B (en) | High-voltage self-adaptive regional automatic switching system and automatic switching control method thereof | |
| CN109003850A (en) | A kind of switch operation mechanism and its control circuit | |
| CN205265242U (en) | Computer protector is add and is reclosed after accelerated protection device | |
| CN110988524A (en) | Automatic function test device of full-automatic recloser formula feeder | |
| CN101728773B (en) | Full-adaptive high-voltage switch controller based on light-coupled control | |
| CN103019106B (en) | Digital simulation system and circuit breaker operation cabinet on-off interface implementation method | |
| CN110635562A (en) | Self-adaptive area spare power automatic switching device and self-adaptive area spare power automatic switching method | |
| CN100544153C (en) | Method for accelerating discrimination reclosing route selection based on two sides TV | |
| CN204463611U (en) | Secondary loop of breaker analogue means | |
| CN110098599A (en) | A kind of fault handling method and system of overhead lines combined with cable | |
| CN112688418B (en) | Spare power automatic switching device and method for single bus sectional wiring type transformer substation | |
| CN108512203A (en) | A kind of distribution network protection device and method | |
| CN107634508A (en) | The fitting method and system that distribution outlet protection is protected with branch | |
| CN109784699B (en) | Method for checking correctness of SCD (substation configuration description) file between 110kV lines of intelligent substation | |
| CN204760332U (en) | Circuit breaker operating device controlgear and control box thereof | |
| CN202678949U (en) | 110kv circuit protection system capable of avoiding multi-reclosing failures | |
| CN102693884A (en) | Special molded case circuit breaker for prepayment electric energy meter | |
| CN204597238U (en) | 220kV double bus scheme system, control circuit | |
| CN204271607U (en) | A kind of dual trip-preventing circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |