CN102323504B - Transformer protection tripping matrix inspection device - Google Patents
Transformer protection tripping matrix inspection device Download PDFInfo
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- CN102323504B CN102323504B CN2011102339083A CN201110233908A CN102323504B CN 102323504 B CN102323504 B CN 102323504B CN 2011102339083 A CN2011102339083 A CN 2011102339083A CN 201110233908 A CN201110233908 A CN 201110233908A CN 102323504 B CN102323504 B CN 102323504B
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- 238000004088 simulation Methods 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
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- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
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Abstract
The invention discloses a transformer protection tripping matrix inspection device, which comprises a tripping matrix correctness detection module and a protection action contact opening time detection module, wherein the tripping matrix correctness detection module comprises an indicating device; the indicating device is used for indicting closing of the protection action contact of a transformer protection tripping matrix; the protection action contact opening time detection module comprises a timer; the timer is used for calculating protection action contact opening time of the transformerprotection tripping matrix; when a protection action contact of the transformer protection tripping matrix is closed, the timer is stopped; and a fault stimulation device is used for providing a fault signal for the protection action contact opening time detection module and starting the timer when a fault signal is sent out. Through the device, the working efficiency is increased, the labor intensity of working personnel is reduced, and reliable guarantee is provided for smooth production.
Description
Technical field
The present invention relates to tranformer protection, bus differential protection and route protection, relate in particular to the check of tranformer protection tripping operation matrix.
Background technology
Protection equipment for transformer is that transformer realizes that fast trip, excision fault guarantee the visual plant of transformer safe and stable operation when breaking down.Tranformer protection is realized the outlet tripping operation by the tripping operation matrix when transformer breaks down, and mistake appears in the matrix that as seen trips can cause serious consequence, threatens power grid security.
220kV transformer station tripping operation matrix once took place and makes mistakes and cause the malfunction of 10kV segmentation prepared auto restart in Guangdong Power Grid; the accident that the 10kV lightning arrester bursts; according to state, background information and the fault oscillograph Wave data of on-the-spot relevant device, analyzing and drawing the malfunction of 10kV segmentation prepared auto restart is owing to do not receive due to the block signal that the low back-up protection of transformer sends.After consulting protection equipment for transformer instructions, drawing and on-the-spot fixed value list, find that " locking prepared auto restart " control word does not drop in the low reserve tripping operation of the transformer matrix.This shows that the correctness that detects tranformer protection tripping operation matrix is very necessary.
Summary of the invention
At the above-mentioned problems in the prior art, the invention provides tranformer protection tripping operation matrix check device, energy is quick, the correctness of visual test tranformer protection tripping operation matrix.
The invention provides tranformer protection tripping operation matrix check device, comprise tripping operation matrix correctness detection module and protect action connection point to leave the time detecting module;
Tripping operation matrix correctness detection module comprises indicating device, and indicating device is used to indicate the protection action connection point closure of tranformer protection tripping operation matrix;
The protection action connection point is left the time detecting module and is comprised timer, and timer is used for the protection action connection point of calculating transformer protection tripping operation matrix and leaves the time; When the protection action connection point of tranformer protection tripping operation matrix was closed, timer stopped;
The fault simulation device is left the time detecting module for the protection action connection point fault-signal is provided, and starts timer when sending fault-signal.
In one example, the fault simulation device is relay-protection tester.
In one example, be connected both ends of power behind the protection action connection point series connection indicating device of tranformer protection tripping operation matrix;
Relay-protection tester leave junction closure the time, timer initiation.
In one example, power supply is the 3V direct supply, and indicating device is light emitting diode.
In one example, protect action connection point to leave the time detecting module and comprise direct supply, rest-set flip-flop, first Sheffer stroke gate, second Sheffer stroke gate, clock-signal generator and the timer with forward voltage and negative voltage;
The negative voltage of direct supply is through an input end of the protection action connection point input rest-set flip-flop of tranformer protection tripping operation matrix, and the negative voltage of direct supply is through another input end of leaving contact input rest-set flip-flop of relay-protection tester; One output terminal of rest-set flip-flop is connected with an input end of first Sheffer stroke gate, and another input end of first Sheffer stroke gate is connected with the forward voltage of direct supply through reset button; Another output terminal of rest-set flip-flop is connected with an input end of second Sheffer stroke gate, and clock-signal generator is connected with another input end of second Sheffer stroke gate; The output terminal of first Sheffer stroke gate is connected with the reseting port of timer, and the output terminal of second Sheffer stroke gate is connected with the clock signal port of timer.
In one example, clock-signal generator is 555 multivibrators.
The present invention has improved work efficiency, on average can shorten debug time more than 5 days; Reduce intensity of workers, especially in present power transformation project duration anxiety, under the heavy situation of task, can effectively reduce the working time, raised the efficiency, provide reliable guarantee for going into operation smoothly.
Description of drawings
Come the present invention is described in further detail below in conjunction with accompanying drawing, wherein:
Fig. 1 is matrix correctness detection module schematic diagram;
Fig. 2 is that the protection action connection point is left the time detecting module diagram;
Fig. 3 is the electrical block diagram that the protection action connection point is left the time detecting module;
Fig. 4 is the annexation synoptic diagram that relay-protection tester and protection action connection point are left the time detecting module.
Embodiment
The invention provides a kind of tranformer protection tripping operation matrix check device; by the protection action connection point of tranformer protection is aggregated on this device; observe the correctness that order and number are analyzed tranformer protection tripping operation matrix of lighting of this device panel light emitting diode; the deep development timing module realizes showing the protection action connection point function of actuation time; the supervision of more visual in image realization tripping operation matrix testing result when guaranteeing tripping operation matrix testing result accuracy; the final demand that realizes simplifying the operation course and reduce workload improves the work efficiency that tranformer protection tripping operation matrix detects.
Matrix correctness detection module principle of the present invention as shown in Figure 1, and is after protecting action connection point K and light emitting diode or small electric bulb being connected, battery-powered; Corresponding light emitting diode is lighted when the K junction closure.
This device specifically mainly comprises two parts: matrix correctness detection module, the protection action connection point is left the time detecting module.
The time detecting module of leaving the protection action connection point adopts 555 timers to constitute multivibrator and provides the clock source for timing module; its principle as shown in Figure 2, it mainly partly is made up of 555 timers, gate circuit, master control door, counter, code translator, display etc.
Constitute 555 multivibrators with 555 timers, the 4th pin and the 8th pin with 555 timers connect 5V voltage, meet variable resistor R1 between the 4th pin and the 7th pin, connecting resistance R2 between the 4th pin and the 7th pin, the 2nd pin directly is connected with the 6th pin, the 1st pin ground connection, the 5th pin are by capacitor C 2 ground connection, and the 6th pin is by capacitor C 1 ground connection.
Protection action connection point of the present invention is left time detecting modular circuit principle as shown in Figure 3, comprises direct supply, rest-set flip-flop, Sheffer stroke gate Q4, Sheffer stroke gate Q3,555 multivibrators and timer with forward voltage and negative voltage; Rest-set flip-flop comprises Sheffer stroke gate Q1, Sheffer stroke gate Q2, resistance R 3, resistance R 4.
The negative voltage of direct supply is through an input end of protection action connection point K1 input rest-set flip-flop, and the negative voltage of direct supply is through another input end of leaving contact K2 input rest-set flip-flop of relay-protection tester; One output terminal of rest-set flip-flop is connected with the input end of Sheffer stroke gate Q4, and another input end of Sheffer stroke gate Q4 is connected with the forward voltage of direct supply through reset button K3; Another output terminal of rest-set flip-flop is connected with the input end of Sheffer stroke gate Q3, and 555 multivibrators are connected with another input end of Sheffer stroke gate Q3; The output terminal of Sheffer stroke gate Q4 is connected with the reseting port of timer, and the output terminal of second Sheffer stroke gate is connected with the clock signal port of timer.
When relay-protection tester leave node K2 when closed then the Q1 output terminal become 1 by 0; Sheffer stroke gate Q3 opens; Sheffer stroke gate Q2 output terminal becomes 1 by 0 as preparing when tranformer protection trips the protection action connection point K1 junction closure of matrix then for counter starts; then the output terminal of Q1 becomes 0, Q3 by 1 and stops to export timing and stop.
When reset button K3 closure is that then Sheffer stroke gate Q4 output terminal becomes 0 by 1, realize the counter O reset function.
The present invention adopts relay-protection tester to protection equipment for transformer simulated failure amount, carries out the judgement of tranformer protection tripping operation matrix correctness by the sequence of movement of observing protection protection action connection point and the situation of lighting diode.Fig. 4 has shown relay-protection tester and has protected action connection point to leave the annexation synoptic diagram of time detecting module.
In the timing specific implementation process, adopt the output quantity of relay-protection tester as the startup input of timer, protection action connection point outlet signal ceasing and desisting order as timer.
After the test of multistation number of times, can detect the correctness of transformer tripping operation matrix very intuitively, time saving and energy saving.Timer also can operate as normal can satisfy the monitoring requirements of docking point time.
The above only is preferred implementation of the present invention, but protection domain of the present invention is not limited thereto.Any those skilled in the art all can carry out suitable change or variation to it in technical scope disclosed by the invention, and this change or variation all should be encompassed within protection scope of the present invention.
Claims (4)
1. tranformer protection tripping operation matrix check device is characterized in that, comprises tripping operation matrix correctness detection module and protects action connection point to leave the time detecting module;
Tripping operation matrix correctness detection module comprises indicating device, and indicating device is used to indicate the protection action connection point closure of tranformer protection tripping operation matrix, and this indicating device is light emitting diode;
The protection action connection point is left the time detecting module and is comprised timer, and timer is used for the protection action connection point of calculating transformer protection tripping operation matrix and leaves the time; When the protection action connection point of tranformer protection tripping operation matrix was closed, timer stopped;
The fault simulation device is left the time detecting module for the protection action connection point fault-signal is provided, and starts timer when sending fault-signal;
The fault simulation device is relay-protection tester;
The protection action connection point is left the time detecting module and is comprised direct supply, rest-set flip-flop, first Sheffer stroke gate, second Sheffer stroke gate and the clock-signal generator with forward voltage and negative voltage;
The negative voltage of direct supply is through an input end of the protection action connection point input rest-set flip-flop of tranformer protection tripping operation matrix, and the negative voltage of direct supply is through another input end of leaving contact input rest-set flip-flop of relay-protection tester; One output terminal of rest-set flip-flop is connected with an input end of first Sheffer stroke gate, and another input end of first Sheffer stroke gate is connected with the forward voltage of direct supply through reset button; Another output terminal of rest-set flip-flop is connected with an input end of second Sheffer stroke gate, and clock-signal generator is connected with another input end of second Sheffer stroke gate; The output terminal of first Sheffer stroke gate is connected with the reseting port of timer, and the output terminal of second Sheffer stroke gate is connected with the clock signal port of timer.
2. verifying attachment as claimed in claim 1 is characterized in that, is connected the direct supply two ends behind the protection action connection point series connection indicating device of tranformer protection tripping operation matrix;
Relay-protection tester leave junction closure the time, timer initiation.
3. verifying attachment as claimed in claim 1 or 2 is characterized in that, described direct supply is the 3V direct supply.
4. verifying attachment as claimed in claim 3 is characterized in that, clock-signal generator is 555 multivibrators.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102339083A CN102323504B (en) | 2011-08-15 | 2011-08-15 | Transformer protection tripping matrix inspection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102339083A CN102323504B (en) | 2011-08-15 | 2011-08-15 | Transformer protection tripping matrix inspection device |
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| Publication Number | Publication Date |
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| CN102323504A CN102323504A (en) | 2012-01-18 |
| CN102323504B true CN102323504B (en) | 2013-09-11 |
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| CN2011102339083A Active CN102323504B (en) | 2011-08-15 | 2011-08-15 | Transformer protection tripping matrix inspection device |
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| CN110286274A (en) * | 2019-05-21 | 2019-09-27 | 贵州电网有限责任公司 | A kind of relay protection tripping outlet matrix fast verification device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202171628U (en) * | 2011-08-15 | 2012-03-21 | 北京送变电公司 | Protection trip matrix testing device for transformer |
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| CN201555918U (en) * | 2009-12-24 | 2010-08-18 | 余杭供电局 | Relay protection secondary alignment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202171628U (en) * | 2011-08-15 | 2012-03-21 | 北京送变电公司 | Protection trip matrix testing device for transformer |
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Effective date of registration: 20130131 Address after: 100031 West Chang'an Avenue, Beijing, No. 86 Applicant after: State Grid Corporation of China Applicant after: Beijing Electric Distribution Co. Address before: 102401 Beijing City, Fangshan District Liangxiang Haotian Street No. 8 Applicant before: Beijing Electric Distribution Co. |
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