CN214585731U - Auxiliary monitor for outlet test of microcomputer relay protection device - Google Patents
Auxiliary monitor for outlet test of microcomputer relay protection device Download PDFInfo
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- CN214585731U CN214585731U CN202023158561.4U CN202023158561U CN214585731U CN 214585731 U CN214585731 U CN 214585731U CN 202023158561 U CN202023158561 U CN 202023158561U CN 214585731 U CN214585731 U CN 214585731U
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Abstract
The utility model provides a computer relay protection device export test auxiliary monitoring ware, a serial communication port, include: a plurality of mutually independent passive open-in detection circuits or/and a plurality of mutually independent active open-in detection circuits; each passive open detection circuit and each active open detection circuit are respectively and correspondingly provided with a wiring terminal and an indicator light for indicating the detection result, and each indicator light is lightened and kept when an open state is detected; and the indicating lamps are distributed on a functional interface of the monitor to form a trip indicating matrix. This application has provided more comprehensive, can monitor almost all tripping operation exit signal states simultaneously, presents the technical means of the tripping operation matrix that corresponding function protection corresponds, can effectively improve inspection efficiency, saves inspection man-hour, reduces and lou examines the risk, can present the tripping operation matrix that corresponding function protection corresponds simultaneously, makes things convenient for the maintainer to know the tripping operation signal state directly perceived.
Description
Technical Field
The utility model belongs to computer protection device functional test's appurtenance, concretely relates to computer relay protection device export test auxiliary monitoring ware.
Background
The protection device comprises a power plant, a transformer substation and a screen cabinet type microcomputer protection device assembled by a power consumer, such as a bus protection device, a line protection device, a generator-transformer group protection device and the like, wherein the reliability of the protection device plays an important role in the safe operation of a power system and equipment. According to the inspection regulation of the relay protection device, the protection device needs to be periodically checked regularly and fully. The protection device test is primarily a protection function test and a loop check, the most important of which is a check of the trip loop.
The prior inspection means mainly depends on a multifunctional multimeter to measure the tripping signal state one by one, needs to repeat for many times and measure different outlet loops every time, thus greatly wasting time and being easy to omit, not being intuitive and low in efficiency, and being incapable of presenting the tripping matrix corresponding to the corresponding function protection at the same time.
SUMMERY OF THE UTILITY MODEL
The utility model provides a computer relay protection device export test auxiliary monitoring ware, it realizes through following technical means:
an exit test auxiliary monitor of a microcomputer relay protection device, comprising: a plurality of mutually independent passive open-in detection circuits or/and a plurality of mutually independent active open-in detection circuits; each passive open detection circuit and each active open detection circuit are respectively and correspondingly provided with a wiring terminal and an indicator light for indicating the detection result, and each indicator light is lightened and kept when an open state is detected; and the indicating lamps are distributed on a functional interface of the monitor to form a trip indicating matrix.
In one or more embodiments of the present invention, the passive open detection circuit includes a connection terminal P3, a first interface circuit and a first latch circuit, the input terminal of the first interface circuit is connected to the connection terminal P3, the output terminal thereof is connected to the first latch circuit, and the output terminal of the first latch circuit is connected to the indicator light LED 2.
In one or more embodiments of the utility model, first interface circuit includes steady voltage chip VR9 and isolation opto-coupler U52, steady voltage chip VR 9's output is connected to binding post P3's one end, and the input of isolation opto-coupler U52 is connected to its other end, the output of isolation opto-coupler U52 is connected first latch circuit.
In one or more embodiments of the present invention, the output end of the isolation optocoupler U52 is connected to the output end of the voltage regulator chip VR9 through a resistor R33 to obtain the bias voltage.
In one or more embodiments of the present invention, the first latch circuit includes a D flip-flop U54, a logic and gate U98A and a logic not gate U100A, an input of the logic and gate U98A is connected to the first interface circuit, another input is connected to the output of the logic not gate U100A, an input of the logic not gate U100A is connected to the Q terminal of the D flip-flop U54, an output of the logic and gate U98A is connected to the CLK terminal of the D flip-flop U54, and a D terminal of the D flip-flop U54 and the CLK terminal of the D flip-flop U A are connected to the output of the D flip-flop U54
The terminals are commonly connected to the anode of indicator LED 2.
In one or more embodiments of the present invention, the active open detection circuit includes a connection terminal P2, a second interface circuit and a second latch circuit, the input terminal of the second interface circuit is connected to the connection terminal P2, the output terminal thereof is connected to the second latch circuit, and the output terminal of the second latch circuit is connected to the indicator light LED 1.
In one or more embodiments of the utility model, second interface circuit includes voltage regulation chip VR6, keeps apart opto-coupler U16 and many grades of switches S9, many grades of switches S9 ' S common port is connected binding post P2, its each grade output respectively via gear resistance with keep apart opto-coupler U16 ' S input and connect, keep apart opto-coupler U16 ' S output and be connected to the second latch circuit.
In one or more embodiments of the present invention, the output end of the isolation optocoupler U16 is connected to the output end of the voltage regulator chip VR6 through a resistor R81 to obtain the bias voltage.
In one or more embodiments of the present invention, the second latch circuit includes a D flip-flop U18, a logic and gate U148A and a logic not gate U147A, an input of the logic and gate U148A is connected to the second interface circuit, another input is connected to the output of the logic not gate U147A, an input of the logic not gate U147A is connected to the Q terminal of the D flip-flop U18, an output of the logic and gate U148A is connected to the CLK terminal of the D flip-flop U18, and the D terminal of the D flip-flop U18 and the CLK terminal of the D flip-flop U18 are connected to the output of the logic and gate U148A
The terminals are commonly connected to the anode of indicator LED 1.
In one or more embodiments of the present invention, the microcomputer relay protection device export test auxiliary monitor is provided with a reset switch S7 for resetting all passive open detection circuits and a reset switch S8 for resetting all active open detection circuits.
The utility model has the advantages that: compared with the method of measuring the tripping outlet signal state by a universal meter which is generally adopted when a microcomputer protection device is subjected to periodic inspection, the technical means that almost all tripping outlet signal states can be monitored simultaneously and the tripping matrixes corresponding to corresponding function protection are presented is provided, the inspection efficiency can be effectively improved, the inspection working hours are saved, the missing inspection risk is reduced, the tripping matrixes corresponding to corresponding function protection can be presented simultaneously, and the overhauling personnel can conveniently and visually know the tripping signal state.
Drawings
Fig. 1 is a schematic view of the functional interface of the present invention.
Fig. 2 is a schematic block diagram of the circuit of the present invention.
Fig. 3 is a schematic diagram of the passive open monitoring circuit of the present invention.
Fig. 4 is a schematic diagram of the active open monitoring circuit of the present invention.
Fig. 5 is a schematic diagram of a power circuit according to the present invention.
Detailed Description
The application is further described below with reference to the accompanying drawings:
referring to fig. 1 and 2, an auxiliary monitor for outlet testing of microcomputer relay protection device includes: a plurality of mutually independent passive open-in detection circuits or/and a plurality of mutually independent active open-in detection circuits; each passive open detection circuit and each active open detection circuit are respectively and correspondingly provided with a wiring terminal and an indicator light for indicating the detection result, and each indicator light is lightened and kept when an open state is detected; and the indicating lamps are distributed on a functional interface of the monitor to form a trip indicating matrix.
Referring to fig. 3, the passive open-in detection circuit includes a connection terminal P3, a first interface circuit and a first latch circuit, wherein an input terminal of the first interface circuit is connected to the connection terminal P3, an output terminal of the first interface circuit is connected to the first latch circuit, and an output terminal of the first latch circuit is connected to an indicator light LED 2. The first interface circuit comprises a voltage stabilizing chip VR9 and an isolating optocoupler U52, one end of the wiring terminal P3 is connected with the output end of the voltage stabilizing chip VR9, the other end of the wiring terminal P3 is connected with the input end of the isolating optocoupler U52, and the output end of the isolating optocoupler U52 is connected with the first latch circuit. The output end of the isolation optocoupler U52 is connected with the output end of the voltage stabilizing chip VR9 through a resistor R33 to obtain bias voltage. The first latch circuit comprises a D flip-flop U54, a logic AND gate U98A and a logic NOT gate U100A, one input end of the logic AND gate U98A is connected with the first interface circuit, and the other input end of the logic AND gate U98A is connected with the first interface circuitThe input end of the logic NOT gate U100 is connected with the output end of a logic NOT gate U100A, the input end of the logic NOT gate U100A is connected with the Q end of a D flip-flop U54, the output end of the logic AND gate U98A is connected with the CLK end of a D flip-flop U54, and the D end of the D flip-flop U54 are connected with the CLK end of the D flip-flop U54
The terminals are commonly connected to the anode of indicator LED 2. A reset switch S7 is also provided to reset all passive open-in detection circuits, the reset switch S7 being connected to the R terminal of the D flip-flop U54.
Referring to fig. 4, the active open-in detection circuit includes a connection terminal P2, a second interface circuit and a second latch circuit, an input terminal of the second interface circuit is connected to the connection terminal P2, an output terminal of the second interface circuit is connected to the second latch circuit, and an output terminal of the second latch circuit is connected to the indicator LED 1. The second interface circuit comprises a voltage stabilizing chip VR6, an isolation optocoupler U16 and a multi-gear switch S9, wherein the common end of the multi-gear switch S9 is connected with the wiring terminal P2, the output ends of all gears of the multi-gear switch S9 are respectively connected with the input end of the isolation optocoupler U16 through gear resistors, each gear resistor comprises resistors R2, R3 and R4, and the resistance values of the resistors are selected to enable all gears to respectively correspond to 220V, 110V and 48V; the output end of the isolation optocoupler U16 is connected to a second latch circuit. The output end of the isolation optocoupler U16 is connected with the output end of the voltage stabilizing chip VR6 through a resistor R81 to obtain bias voltage. The second latch circuit comprises a D flip-flop U18, a logic AND gate U148A and a logic NOT gate U147A, wherein one input end of the logic AND gate U148A is connected with the second interface circuit, the other input end of the logic AND gate U148A is connected with the output end of the logic NOT gate U147A, the input end of the logic NOT gate U147A is connected with the Q end of the D flip-flop U18, the output end of the logic AND gate U148A is connected with the CLK end of the D flip-flop U18, and the D end of the D flip-flop U18 are connected with each other
The terminals are commonly connected to the anode of indicator LED 1. And a reset switch S8 for resetting all the active open-in detection circuits is further arranged, and the reset switch S8 is connected with the R end of the D trigger U18.
Referring to fig. 5, the power circuit includes a power interface P1, a transformer T1, a rectifier bridge D1, a filter capacitor C1, and a power indicator LED0, the power indicator LED0 and the filter capacitor C1 are respectively connected to the output end of the rectifier bridge D1, and the input ends of the voltage regulation chips VR6 and VR9 are respectively connected to the output end of the rectifier bridge D1.
The utility model discloses an operating principle:
firstly, passive open state monitoring is carried out, and the input obtained by a connecting terminal P3 is a passive idle contact pulse signal; when the opening state signal is received, the indicator light LED2 lights; after the on state signal disappears, the indicator LED2 remains on due to the latch circuit until the lights go off after an artificial reset.
Secondly, active on-state monitoring is carried out, the input obtained by a connecting terminal P2 is an active pulse signal, the signal voltage is in three grades of direct current 220V, 110V or 48V, and the corresponding input contact signal voltage is selected and adapted through a multi-gear switch S9; when an open status signal is received, indicator light LED1 lights up. After the on state signal disappears, the indicator LED1 remains on due to the latch circuit until the lights go off after an artificial reset.
The utility model discloses when doing periodic inspection to computer protection device, the universal meter that adopts relatively measures the way of tripping operation exit signal state, has proposed more comprehensively, can monitor almost all tripping operation exit signal states simultaneously, presents the technical means of the tripping operation matrix that corresponding function protection corresponds, can effectively improve detection efficiency, save inspection man-hour, reduce and miss the risk of examining, can present the tripping operation matrix that corresponding function protection corresponds simultaneously, make things convenient for the maintainer to know the tripping operation signal state directly perceived.
The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.
Claims (10)
1. An auxiliary monitor for outlet test of microcomputer relay protection device, comprising: a plurality of mutually independent passive open-in detection circuits or/and a plurality of mutually independent active open-in detection circuits; each passive open detection circuit and each active open detection circuit are respectively and correspondingly provided with a wiring terminal and an indicator light for indicating the detection result, and each indicator light is lightened and kept when an open state is detected; and the indicating lamps are distributed on a functional interface of the monitor to form a trip indicating matrix.
2. The microcomputer relay protection device outlet test auxiliary monitor of claim 1, wherein: the passive open-in detection circuit comprises a wiring terminal P3, a first interface circuit and a first latch circuit, wherein the input end of the first interface circuit is connected with the wiring terminal P3, the output end of the first interface circuit is connected with the first latch circuit, and the output end of the first latch circuit is connected with an indicator light LED 2.
3. The microcomputer relay protection device outlet test auxiliary monitor of claim 2, wherein: the first interface circuit comprises a voltage stabilizing chip VR9 and an isolating optocoupler U52, one end of the wiring terminal P3 is connected with the output end of the voltage stabilizing chip VR9, the other end of the wiring terminal P3 is connected with the input end of the isolating optocoupler U52, and the output end of the isolating optocoupler U52 is connected with the first latch circuit.
4. The microcomputer relay protection device outlet test auxiliary monitor of claim 3, wherein: the output end of the isolation optocoupler U52 is connected with the output end of the voltage stabilizing chip VR9 through a resistor R33 to obtain bias voltage.
5. The microcomputer relay protection device outlet test auxiliary monitor of claim 3, wherein: the first latch circuit comprises a D flip-flop U54, a logic AND gate U98A and a logic NOT gate U100A, one input end of the logic AND gate U98A is connected with a first interface circuit, the other input end of the logic AND gate U98A is connected with the output end of the logic NOT gate U100A, the input end of the logic NOT gate U100A is connected with the Q end of the D flip-flop U54, the output end of the logic AND gate U98A is connected with the CLK end of the D flip-flop U54, and the D flip-flop U100D terminal of device U54 and
the terminals are commonly connected to the anode of indicator LED 2.
6. The microcomputer relay protection device outlet test auxiliary monitor of claim 1, wherein: the active open-in detection circuit comprises a wiring terminal P2, a second interface circuit and a second latch circuit, wherein the input end of the second interface circuit is connected with the wiring terminal P2, the output end of the second interface circuit is connected with the second latch circuit, and the output end of the second latch circuit is connected with an indicator light LED 1.
7. The microcomputer relay protection device outlet test auxiliary monitor of claim 6, wherein: the second interface circuit comprises a voltage stabilizing chip VR6, an isolation optocoupler U16 and a multi-gear switch S9, the public end of the multi-gear switch S9 is connected with the wiring terminal P2, the output ends of all gears of the multi-gear switch are respectively connected with the input end of the isolation optocoupler U16 through gear resistors, and the output end of the isolation optocoupler U16 is connected to the second latch circuit.
8. The microcomputer relay protection device outlet test auxiliary monitor of claim 7, wherein: the output end of the isolation optocoupler U16 is connected with the output end of the voltage stabilizing chip VR6 through a resistor R81 to obtain bias voltage.
9. The microcomputer relay protection device outlet test auxiliary monitor of claim 7, wherein: the second latch circuit comprises a D flip-flop U18, a logic AND gate U148A and a logic NOT gate U147A, wherein one input end of the logic AND gate U148A is connected with the second interface circuit, the other input end of the logic AND gate U148A is connected with the output end of the logic NOT gate U147A, the input end of the logic NOT gate U147A is connected with the Q end of the D flip-flop U18, the output end of the logic AND gate U148A is connected with the CLK end of the D flip-flop U18, and the D end of the D flip-flop U18 are connected with each other
The terminals are commonly connected to the anode of indicator LED 1.
10. The microcomputer relay protection device outlet test auxiliary monitor according to any one of claims 1-9, wherein: a reset switch S7 for resetting all the passive open detection circuits and a reset switch S8 for resetting all the active open detection circuits are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023158561.4U CN214585731U (en) | 2020-12-24 | 2020-12-24 | Auxiliary monitor for outlet test of microcomputer relay protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023158561.4U CN214585731U (en) | 2020-12-24 | 2020-12-24 | Auxiliary monitor for outlet test of microcomputer relay protection device |
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| Publication Number | Publication Date |
|---|---|
| CN214585731U true CN214585731U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023158561.4U Active CN214585731U (en) | 2020-12-24 | 2020-12-24 | Auxiliary monitor for outlet test of microcomputer relay protection device |
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| CN (1) | CN214585731U (en) |
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