CN111308235A - Relay protection contact action tester based on wireless transmission - Google Patents
Relay protection contact action tester based on wireless transmission Download PDFInfo
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- CN111308235A CN111308235A CN201911261219.6A CN201911261219A CN111308235A CN 111308235 A CN111308235 A CN 111308235A CN 201911261219 A CN201911261219 A CN 201911261219A CN 111308235 A CN111308235 A CN 111308235A
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
A relay protection contact action tester based on wireless transmission comprises a collector input module, a collector output module, a wireless module and a human-computer interaction module, wherein the collector input module is electrically connected with the collector output module through signals; the invention is composed of a collector input module, a collector output module, a wireless module and a human-computer interaction module, wherein the collector input module is used as a signal input end, an output signal of the collector input module is used as an input signal of the collector output module, and an output signal of the collector output module is transmitted to the human-computer interaction module through the wireless module; through using the data transmission mode based on wireless transmission, simplify the wiring, shorten experimental step, avoid the repetition test, it is consuming time to reduce the analysis of action result simultaneously to shorten relay protection contact action test time.
Description
Technical Field
The invention relates to a tester, in particular to a relay protection contact action tester based on wireless transmission, and belongs to the technical field of relay protection.
Background
At present, a great number of substations are uniformly governed by a state network, each substation is provided with a protection device, and in order to ensure safe use of the substation, firstly, the action logic of the protection devices needs to be ensured to be correct, and all contact actions need to be reliable; the current testing method mainly comprises five parts of preparation work, contact testing, data arrangement, result analysis and site cleaning, and through test summary, the testing work consumption of 13.5 min/group contact action is needed at present, 3-4 persons are needed for auxiliary cooperation, the operation and maintenance efficiency is not high, and the working efficiency is difficult to deal with the huge task amount of contact action testing in annual scheduled inspection, defect elimination and technical improvement tasks.
At present, instruments which can be used for relay protection contact action tests in the market, such as relay protection outlet matrix testers or simulation circuit breakers, still cannot get rid of the fixed thinking that a large number of test wires are used for leading contact actions back to the testers. Meanwhile, the prior art has the following problems: the number of the introduced outlet contacts is limited, the interface cannot be expanded, and the problem of long test time consumption of more outlets such as bus differential protection and the like is difficult to solve; the contact action test has complex wiring, repeated steps and high time consumption.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a relay protection contact action tester based on wireless transmission, which avoids the massive application of test wiring, and meanwhile, due to the modularized design, the relay protection contact action tester can be flexibly expanded according to the number of different protection contacts, so that the time consumed by the whole wiring is reduced.
In order to achieve the purpose, the invention provides a relay protection contact action tester based on wireless transmission, which comprises a collector input module, a collector output module, a wireless module and a human-computer interaction module, wherein the collector input module is electrically connected with the collector output module through signals;
the collector input module comprises resistors R1-R3, a chip U1, a switch S1 and a triode Q1, wherein a power input end is connected with a pin 1 of the chip U1 after being connected with the switch S1 and a resistor R1 in series, a pin 2 of the chip U1 is grounded, a pin 3 of the chip U1 is connected with a power VCC after being connected with a resistor R2 in series, a pin 4 of the chip U1 is connected with a base electrode of the triode Q1, a collector of the triode Q1 is connected with the power VCC and an output interface respectively after being connected with a resistor R3 in series, and an emitter of the triode Q1 is grounded;
the collector output module comprises a resistor R4 and a chip U2, an output interface of the collector input module is connected with a pin 1 of the chip U2 after being connected with the resistor R4 in series, a pin 2 of the chip U2 is grounded, a pin 3 of the chip U2 is connected with a 5V power supply interface, and a pin 4 of the chip U2 is suspended;
the wireless module comprises a resistor R, a crystal oscillator Y, capacitors C-C, a chip U and a chip U, wherein a power input is respectively connected with one end of the capacitor C, one end of the resistor R and one end of the chip U1, the other end of the capacitor C is grounded, 3 pins of the chip U are respectively connected with the other end of the resistor R and one end of the capacitor C, the other end of the capacitor C is grounded, 9 pins of the chip U are connected with 6 pins of the chip U, 10 pins of the chip U are connected with 7 pins of the chip U, 11 pins of the chip U are connected with 8 pins of the chip U, 12 pins of the chip U are connected with 9 pins of the chip U, 13 pins of the chip U are connected with 10 pins of the chip U, 14 pins of the chip U are connected with 11 pins of the chip U, 18 pins of the chip U are respectively connected with one end of the capacitor C and one end of the crystal oscillator Y, 19 pins of the chip U are respectively connected with one end of the capacitor C and, Pins 20 of the chip U3 are all grounded; the pin 1 of the chip U4 is grounded, the power input is respectively connected with one end of a capacitor C1, one end of a capacitor C2 and the pin 5 of the chip U4, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, the pin 13 of the chip U4 is an antenna interface, and the pin 14 of the chip U4 is grounded.
The wireless module comprises resistors R5-R7, a chip U3 and a chip U4,
as a further improvement of the invention, the chip U1 is a photoelectric coupler with the model of PSR 5-L.
As a further improvement of the invention, the chip U2 is a relay with the model number of JDM-0511.
As a further improvement of the invention, the chip U3 is a single chip with the model of PIC18F45K22, and the chip U4 is a wireless transmission chip with the model of SI 4463.
Compared with the prior art, the invention consists of a collector input module, a collector output module, a wireless module and a human-computer interaction module, wherein the collector input module is used as a signal input end, an output signal of the collector input module is used as an input signal of the collector output module, and the output signal of the collector output module is transmitted to the human-computer interaction module through the wireless module; through using the data transmission mode based on wireless transmission, simplify the wiring, shorten experimental step, avoid the repetition test, it is consuming time to reduce the analysis of action result simultaneously to shorten relay protection contact action test time.
Drawings
FIG. 1 is a block diagram of the modules of the present invention;
FIG. 2 is a circuit diagram of the collector input module of the present invention;
FIG. 3 is a circuit diagram of the collector output module of the present invention;
fig. 4 is a circuit diagram of a wireless transmission module according to the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, a relay protection contact action tester based on wireless transmission includes a collector input module, a collector output module, a wireless module, and a human-computer interaction module, wherein the collector input module is electrically connected with the collector output module in signal mode, the collector input module is used as a signal input end, an output signal of the collector input module is used as an input signal of the collector output module, and an output signal of the collector output module is transmitted to the human-computer interaction module through the wireless module;
as shown in fig. 2, the collector input module includes resistors R1-R3, a chip U1, a switch S1, and a triode Q1, and the chip U1 is a photoelectric coupler, and is PSR5-L in model number; the power input end is connected with a pin 1 of a chip U1 after being connected with a switch S1 and a resistor R1 in series, a pin 2 of the chip U1 is grounded, a pin 3 of the chip U1 is connected with a power VCC after being connected with a resistor R2 in series, a pin 4 of the chip U1 is connected with a base electrode of a triode Q1, a collector electrode of the triode Q1 is connected with the power VCC and an output interface respectively after being connected with a resistor R3 in series, and an emitter electrode of the triode Q1 is grounded;
as shown in fig. 3, the collector output module includes a resistor R4 and a chip U2, the chip U2 is a relay, and the model is JDM-0511; an output interface of the collector input module is connected with a pin 1 of the chip U2 after being connected with a resistor R4 in series, a pin 2 of the chip U2 is grounded, a pin 3 of the chip U2 is connected with a 5V power interface, and a pin 4 of the chip U2 is suspended in the air;
as shown in fig. 4, the wireless module includes a resistor R5, a crystal oscillator Y1, capacitors C1-C6, a chip U3, and a chip U4, wherein the chip U3 is a single chip with a model of PIC18F45K22, and the chip U4 is a wireless transmission chip with a model of SI 4463; the power supply input is respectively connected with one end of a capacitor C3, one end of a resistor R5 and a pin 1 of a chip U3, the other end of a capacitor C3 is grounded, a pin 3 of a chip U3 is respectively connected with the other end of a resistor R5 and one end of a capacitor C4, the other end of a capacitor C4 is grounded, a pin 9 of a chip U3 is connected with a pin 6 of a chip U4, a pin 10 of a chip U3 is connected with a pin 7 of a chip U4, a pin 11 of the chip U3 is connected with a pin 8 of the chip U3, a pin 12 of the chip U3 is connected with a pin 9 of the chip U3, a pin 13 of the chip U3 is connected with a pin 10 of the chip U3, a pin 14 of the chip U3 is connected with a pin 11 of the chip U3, a pin 18 of the chip U3 is respectively connected with one end of the capacitor C3 and one end of the crystal oscillator Y3, and a pin 19 of the chip U3 are grounded; the pin 1 of the chip U4 is grounded, the power input is respectively connected with one end of a capacitor C1, one end of a capacitor C2 and the pin 5 of the chip U4, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, the pin 13 of the chip U4 is an antenna interface, and the pin 14 of the chip U4 is grounded.
The resistance values of the elements in fig. 2, 3 and 4 are all common knowledge, and those skilled in the art can adjust the parameters of the elements according to the needs, and the above-mentioned components are obtained by procurement.
The implementation steps of the invention are as follows:
firstly, drawing a photoelectric isolation circuit drawing, carrying out specific implementation after Matlab simulation succeeds, and verifying the circuit correctness through a simulation test; secondly, drawing a relay circuit drawing, and carrying out specific manufacturing after checking that the action is correct through a simulation experiment; moreover, the single chip microcomputer and the wireless module are in interface butt joint, the lapping work of the tester is completed, and finally a program which can realize the visualization of the action time sequence of a plurality of groups of contacts is compiled, and the C language programming is specifically adopted.
The invention relates to a using method of a relay protection contact action tester based on wireless transmission, which comprises the following specific steps:
the method comprises the following steps: the system obtains a work permission;
step two: preparing an instrument required by the test;
step three: checking a drawing to find a connection point wiring position;
step four: preparing an action contact wiring;
step five: adding a protection tester, and performing an action contact test;
step six: recording the action condition time sequence of the action contact;
step seven: analyzing the test result of the action condition of the joint;
step eight: and cleaning the site and finishing the work.
Compared with the conventional test method, the operation method of the relay protection contact action tester adopting the wireless transmission can save a large amount of time, the conventional method needs to repeatedly test the contact, the step is omitted, the time of 70-80min can be saved, the test step is shortened, the repeated test is avoided, and meanwhile, the time consumed for analyzing action results is reduced, so that the time consumed for testing the action of the relay protection contact is shortened; while saving time, the invention obtains remarkable economic benefit, social benefit and safety benefit, and specifically comprises the following steps:
economic benefit, the invention can shorten the contact action test time by more than 50% in practical work application, and the saved power failure time can generate huge economic benefit through multiple power supplies; and the testing time of each group of contacts is about 13.5min by using the traditional testing method, and after the debugging is carried out by using the method, the average testing time of a single group of contacts is shortened to 5min, and the testing time is shortened by more than 50%. When the method is used for testing, the single-group contact testing time is saved by 8.5min, the average annual power failure time is saved by about 1870min, and the economic benefit generated by multiple power supplies per year reaches more than 25 ten thousand yuan.
The invention can accurately and comprehensively test whether the contact action of the device is normal or not, thereby reducing the power failure time and ensuring the safe and stable operation of a power grid;
the invention simplifies the wiring by wireless transmission mode, shortens the working hours, avoids the possibility of wrong wiring and device misoperation caused by complex wiring quantity by simultaneously receiving a plurality of groups of switching values, and greatly improves the operation reliability of the equipment.
Claims (5)
1. A relay protection contact action tester based on wireless transmission is characterized by comprising a collector input module, a collector output module, a wireless module and a human-computer interaction module, wherein the collector input module is electrically connected with the collector output module through signals;
the collector input module comprises resistors R1-R3, a chip U1, a switch S1 and a triode Q1, wherein a power input end is connected with a pin 1 of the chip U1 after being connected with the switch S1 and a resistor R1 in series, a pin 2 of the chip U1 is grounded, a pin 3 of the chip U1 is connected with a power VCC after being connected with a resistor R2 in series, a pin 4 of the chip U1 is connected with a base electrode of the triode Q1, a collector of the triode Q1 is connected with the power VCC and an output interface respectively after being connected with a resistor R3 in series, and an emitter of the triode Q1 is grounded;
the collector output module comprises a resistor R4 and a chip U2, an output interface of the collector input module is connected with a pin 1 of the chip U2 after being connected with the resistor R4 in series, a pin 2 of the chip U2 is grounded, a pin 3 of the chip U2 is connected with a 5V power supply interface, and a pin 4 of the chip U2 is suspended;
the wireless module comprises a resistor R, a crystal oscillator Y, capacitors C-C, a chip U and a chip U, wherein a power input is respectively connected with one end of the capacitor C, one end of the resistor R and one end of the chip U1, the other end of the capacitor C is grounded, 3 pins of the chip U are respectively connected with the other end of the resistor R and one end of the capacitor C, the other end of the capacitor C is grounded, 9 pins of the chip U are connected with 6 pins of the chip U, 10 pins of the chip U are connected with 7 pins of the chip U, 11 pins of the chip U are connected with 8 pins of the chip U, 12 pins of the chip U are connected with 9 pins of the chip U, 13 pins of the chip U are connected with 10 pins of the chip U, 14 pins of the chip U are connected with 11 pins of the chip U, 18 pins of the chip U are respectively connected with one end of the capacitor C and one end of the crystal oscillator Y, 19 pins of the chip U are respectively connected with one end of the capacitor C and, Pins 20 of the chip U3 are all grounded; the pin 1 of the chip U4 is grounded, the power input is respectively connected with one end of a capacitor C1, one end of a capacitor C2 and the pin 5 of the chip U4, the other end of the capacitor C1 and the other end of the capacitor C2 are grounded, the pin 13 of the chip U4 is an antenna interface, and the pin 14 of the chip U4 is grounded.
2. The relay protection contact action tester based on wireless transmission as claimed in claim 1, wherein the chip U1 is a photocoupler with model number PSR 5-L.
3. The relay protection contact action tester based on wireless transmission of claim 2, wherein the chip U2 is a relay, and the model is JDM-0511.
4. The relay protection contact action tester based on wireless transmission as claimed in claim 2, wherein the chip U3 is a single chip microcomputer chip with model number PIC18F45K 22.
5. The relay protection contact action tester based on wireless transmission as claimed in claim 2 or 3, wherein the chip U4 is a wireless transmission chip with model number SI 4463.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911261219.6A CN111308235A (en) | 2019-12-10 | 2019-12-10 | Relay protection contact action tester based on wireless transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911261219.6A CN111308235A (en) | 2019-12-10 | 2019-12-10 | Relay protection contact action tester based on wireless transmission |
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| CN111308235A true CN111308235A (en) | 2020-06-19 |
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| CN201911261219.6A Pending CN111308235A (en) | 2019-12-10 | 2019-12-10 | Relay protection contact action tester based on wireless transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345933A (en) * | 2020-11-26 | 2021-02-09 | 国网河南省电力公司洛阳供电公司 | Relay protection action contact test system |
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Application publication date: 20200619 |
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