CN116643111A - Relay protection device outlet pressing plate tester - Google Patents
Relay protection device outlet pressing plate tester Download PDFInfo
- Publication number
- CN116643111A CN116643111A CN202310799717.6A CN202310799717A CN116643111A CN 116643111 A CN116643111 A CN 116643111A CN 202310799717 A CN202310799717 A CN 202310799717A CN 116643111 A CN116643111 A CN 116643111A
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- Prior art keywords
- outlet
- loop
- relay
- protection device
- resistor
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The application discloses an outlet pressing plate tester of a relay protection device, which is used for acquiring an outlet deflection signal of a direct current loop through a starting loop so as to achieve the purpose of indicating whether an outlet of the protection loop acts or not; meanwhile, a lamp for indicating the outlet loop of the pressure plate can be lightened through the self-holding loop, so that the aim of visually indicating whether the protection outlet acts or not is fulfilled; compared with the prior art, the relay protection device outlet pressure plate tester can only be connected to one end of the outlet pressure plate for testing the outlet node on the premise of not damaging the timing safety measure, the wiring is quick and convenient to carry, different resistance values are designed, the switching can be carried out in the actual test process, and the efficiency of the timing work is greatly improved.
Description
Technical Field
The application relates to the technical field of relay protection, in particular to an outlet pressing plate tester of a relay protection device.
Background
In the periodic inspection process of the relay protection device in the power industry, operators need to use a relay protection tester to simulate faults possibly occurring in practice, and whether the relay protection device can accurately act through an outlet pressing plate according to a set value is detected. In actual operation, the relay protection device for performing the definite inspection has an outlet pressing plate related to operation, so that the outlet pressing plate is provided with reliable safety measures before operation to prevent incorrect operation of the equipment in operation caused by incorrect outlet. In order to verify the reliability of the protection logic and the outlet action of the relay protection device, operators often use a multimeter to measure whether the lower end of the outlet pressing plate has voltage change to judge whether the protection device has a tripping outlet command to send.
However, a set of relay protection device is provided with a plurality of outlet pressing plates, an operator needs to measure whether the voltage at the lower end of each outlet pressing plate changes one by one, and the operation needs to add fault quantity to the relay protection device for a plurality of times, so that the potential of the change of the lower end of each outlet pressing plate is measured. In actual operation of the relay protection device, the electrical fault has the characteristics of instantaneous and short duration, the protection outlet time is very rapid, the protection outlet time can be completed within tens of milliseconds, the instantaneous voltage change of the outlet pressing plate can not be accurately measured by using the voltage gear of the universal meter, and thus, the potential change of the outlet pressing plate is very difficult to be measured by operators. If the fault quantity is continuously added to the relay protection device, the relay protection device is in a state of protection starting and protection outlet for a long time, the damage to the internal components is easy to cause, the relay protection device is down by a light person, and the risks of protection refusal and misoperation can be generated in actual work by heavy person.
In addition, the operation method cannot measure the potential change of a plurality of outlet pressing plates at the same time, and a plurality of protection tripping outlet commands can be issued at the same time when the relay protection device is in protection action, so that the consistency of the action of the relay protection device cannot be correctly checked, and whether the pressing plates at the same time act at the same time cannot be checked.
The existing relay protection tester integrates the measuring function of the outlet node, has large volume and heavy weight, and is not easy to carry. And the two ends of the outlet node are required to be led into the tester, so that the wiring is inconvenient.
Disclosure of Invention
The application provides an outlet pressing plate tester for a relay protection device, which is used for solving the problems of low testing accuracy, poor portability and inconvenient wiring of the existing testing device.
In view of this, a first aspect of the present application provides a relay protection device outlet platen tester, the tester comprising: a plurality of groups of starting loops and one-to-one corresponding indicating loops;
the startup loop includes: a wiring terminal, a diode and a first relay which are connected with an outlet pressing plate of the relay protection device; the terminal is connected with the diode, the diode is connected with the first relay, a plurality of groups of starting loops are connected in parallel and then are connected with one end of a switching loop, and the other end of the starting loop is connected with the grounding end of a grounding grid copper bar of the transformer substation; wherein, the switching loop includes: a switch button, a first resistor and a second resistor, such that the start-up loop connects the first resistor or the second resistor through the switch button;
the indication circuit comprises: the power supply device comprises a power switch, a reset button, a first normally open node corresponding to the first relay, a second normally open node corresponding to the second relay and an indicator lamp; one end of the first switch is connected with a power supply, the other end of the first switch is connected with the reset button, the reset button is connected with a parallel loop formed by the first node and the second node, one end of the second relay is connected with the parallel loop, and the other end of the second relay is connected with the indicator lamp;
when the outlet pressing plate is shifted, the starting loop is charged instantly, so that the first normally open node corresponding to the first relay is closed instantly, the second relay is started, the second normally open node corresponding to the second relay is closed, and the indicator lamp is lighted.
Optionally, when the outlet platen is indexed, the method further comprises:
and connecting the first resistor or the second resistor through the switching button according to the voltage of a direct current system or direct current deflection corresponding to the outlet pressing plate of the relay protection device to be detected, and closing the power switch to enable the indication loop to be in a monitoring state.
Optionally, the voltage level of the direct current system is: 220V or 110V, the voltage level of the direct current deflection is: 55V or 110V.
Optionally, the further causing the indicator light to illuminate further comprises:
when the test is completed, the reset button is pressed to enable the indication loop to be disconnected and reset.
Optionally, the resistance values of the first resistor and the second resistor are in kiloohm level.
Optionally, the power supply is a built-in or external dry battery with 3V.
Optionally, the method further comprises: the direct current system selection button is arranged on the tester panel and corresponds to the switching button, so that a tester controls the switching button through the direct current system selection button.
From the above technical scheme, the application has the following advantages:
the application provides an outlet pressing plate tester of a relay protection device, which is used for acquiring an outlet deflection signal of a direct current loop through a starting loop so as to achieve the purpose of indicating whether an outlet of the protection loop acts or not; meanwhile, a lamp for indicating the outlet loop of the pressure plate can be lightened through the self-holding loop, so that the aim of visually indicating whether the protection outlet acts or not is fulfilled; compared with the prior art, the relay protection device outlet pressure plate tester can only be connected to one end of the outlet pressure plate for testing the outlet node on the premise of not damaging the timing safety measure, the wiring is quick and convenient to carry, different resistance values are designed, the switching can be carried out in the actual test process, and the efficiency of the timing work is greatly improved.
Drawings
FIG. 1 is a schematic diagram of a starting circuit of an outlet platen tester of a relay protection device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an indication loop of an outlet platen tester of a relay protection device according to an embodiment of the present application;
fig. 3 is a panel design diagram of an outlet platen tester for a relay protection device according to an embodiment of the present application.
Detailed Description
In order to make the present application better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, an outlet platen tester for a relay protection device according to an embodiment of the present application includes: a plurality of groups of starting loops and one-to-one corresponding indicating loops;
the startup loop includes: a wiring terminal, a diode and a first relay which are connected with an outlet pressing plate of the relay protection device; the terminal is connected with the diode, the diode is connected with the first relay, a plurality of groups of starting loops are connected in parallel and then are connected with one end of the switching loop, and the other end of the starting loop is connected with the grounding end of the grounding grid copper bar of the transformer substation; wherein, switching circuit includes: the switching button, the first resistor and the second resistor, so that the starting loop is connected with the first resistor or the second resistor through the switching button;
the indication circuit comprises: the power supply device comprises a power switch, a reset button, a first normally open node corresponding to the first relay, a second normally open node corresponding to the second relay and an indicator lamp; one end of the first switch is connected with a power supply, the other end of the first switch is connected with a reset button, the reset button is connected with a parallel loop formed by a first node and a second node, one end of the second relay is connected with the parallel loop, and the other end of the second relay is connected with an indicator lamp;
when the outlet pressing plate is shifted, the starting loop is instantly electrified, so that the first normally open node corresponding to the first relay is instantly closed, the second relay is started, the second normally open node corresponding to the second relay is closed, and the indicator lamp is lightened.
It should be noted that, the front of the outlet pressure plate tester of the relay protection device in this embodiment is shown in fig. 3. The panel comprises ten groups of outlet pressing plate access points, a key-type power switch, a grounding wire access point, a direct current selection button and a reset button. The instrument needs to be externally connected with a portable battery as a power supply of the instrument; the outlet pressing plate access point is connected with an outlet pressing plate of relay protection, so that at most ten outlet loops can be measured; when the transformer substation grounding wire access point is used, the grounding wire access point is required to be connected to the copper bar of the transformer substation grounding network. Because the direct current voltage levels used by different substations are different, the voltage levels of 220V and 110V are common, and the direct current system is switched through a direct current system selection button, if IK is selected, the direct current system is suitable for a 110V direct current system, and if the direct current system is connected into the voltage level which is not corresponding by mistake, the tripping outlet voltage measurement is inaccurate.
The internal principle of the relay protection device outlet pressing plate tester is as follows, and the relay protection device outlet pressing plate tester mainly comprises a starting loop and an indicating loop, wherein when the relay protection device outlet is captured through the starting loop, the pressing plate has a voltage difference of instantaneous deflection, so that a node in the indicating loop is started after a corresponding relay in the starting loop acts, and an indicating lamp is lightened through a self-holding design to reflect to a user, so that the user can visually see whether the outlet pressing plate of the relay protection device acts correctly.
As shown in fig. 1 and 3, the connections 1 to 10 correspond to 1 to 10 terminals in the panel, respectively, and are connected to the lower end of the pressing plate of the relay protection device, and the pressing plate is shifted from 0 to 55V or 110V (corresponding to a direct current system of 110V or 220, respectively) when the relay protection device operates, and the starting circuit is instantly electrified. The switching button corresponds to a direct current system selection button in the panel, and different resistance values (R1 or R2) are selected through the switching button, so that the direct current system selection button is suitable for direct current deflection of 55V or 110V. In order to prevent current from flowing into the direct current system from the grounding end, the diode is used for preventing the direct current system from being grounded due to the fact that R1 and R2 are kiloohm-level resistors. And 1-10Q is a relay, and after power is obtained, a normally open node corresponding to the 1-10Q relay in the indication loop is closed instantaneously.
As shown in fig. 2 and 3, the indication circuit has ST corresponding to the power switch in the panel and FG corresponding to the reset button. When the power is turned on, the entire loop enters a monitoring state. For example, after the 1Q node is instantaneously closed, the 1Z relay is started, the normally open node of the 1Z relay is closed, the corresponding indicator lamp is turned on, and a self-holding loop is formed. Even if the closing pulse disappears, after the 1Q relay and the node return, the loop still keeps electrified, the indicator light is on, an indication is provided for an operator, and the loop has an outlet pulse. After the test is completed, the reset button FG needs to be manually pressed to reset the loop off.
The application provides an outlet pressing plate tester of a relay protection device, which is used for acquiring an outlet deflection signal of a direct current loop through a starting loop so as to achieve the purpose of indicating whether an outlet of the protection loop acts or not; meanwhile, a lamp for indicating the outlet loop of the pressure plate can be lightened through the self-holding loop, so that the aim of visually indicating whether the protection outlet acts or not is fulfilled; compared with the prior art, the relay protection device outlet pressure plate tester can only be connected to one end of the outlet pressure plate for testing the outlet node on the premise of not damaging the timing safety measure, the wiring is quick and convenient to carry, different resistance values are designed, the switching can be carried out in the actual test process, and the efficiency of the timing work is greatly improved.
The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: u disk, mobile hard disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (7)
1. An overload protection device export clamp plate tester, characterized by comprising: a plurality of groups of starting loops and one-to-one corresponding indicating loops;
the startup loop includes: a wiring terminal, a diode and a first relay which are connected with an outlet pressing plate of the relay protection device; the terminal is connected with the diode, the diode is connected with the first relay, a plurality of groups of starting loops are connected in parallel and then are connected with one end of a switching loop, and the other end of the starting loop is connected with the grounding end of a grounding grid copper bar of the transformer substation; wherein, the switching loop includes: a switch button, a first resistor and a second resistor, such that the start-up loop connects the first resistor or the second resistor through the switch button;
the indication circuit comprises: the power supply device comprises a power switch, a reset button, a first normally open node corresponding to the first relay, a second normally open node corresponding to the second relay and an indicator lamp; one end of the first switch is connected with a power supply, the other end of the first switch is connected with the reset button, the reset button is connected with a parallel loop formed by the first node and the second node, one end of the second relay is connected with the parallel loop, and the other end of the second relay is connected with the indicator lamp;
when the outlet pressing plate is shifted, the starting loop is charged instantly, so that the first normally open node corresponding to the first relay is closed instantly, the second relay is started, the second normally open node corresponding to the second relay is closed, and the indicator lamp is lighted.
2. The apparatus outlet platen tester of claim 1, wherein when the outlet platen is indexed, the apparatus further comprises:
and connecting the first resistor or the second resistor through the switching button according to the voltage of a direct current system or direct current deflection corresponding to the outlet pressing plate of the relay protection device to be detected, and closing the power switch to enable the indication loop to be in a monitoring state.
3. The apparatus of claim 2, wherein the dc system voltage class is: 220V or 110V, the voltage level of the direct current deflection is: 55V or 110V.
4. The apparatus of claim 1, wherein the means for further causing the indicator light to illuminate further comprises:
when the test is completed, the reset button is pressed to enable the indication loop to be disconnected and reset.
5. The apparatus of claim 1, wherein the first resistor and the second resistor are each of a kiloohm level.
6. The apparatus of claim 1, wherein the power source is a 3V internal or external dry cell.
7. The apparatus for testing an outlet platen of a relay protection apparatus according to claim 1, further comprising: the direct current system selection button is arranged on the tester panel and corresponds to the switching button, so that a tester controls the switching button through the direct current system selection button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310799717.6A CN116643111A (en) | 2023-06-30 | 2023-06-30 | Relay protection device outlet pressing plate tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310799717.6A CN116643111A (en) | 2023-06-30 | 2023-06-30 | Relay protection device outlet pressing plate tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116643111A true CN116643111A (en) | 2023-08-25 |
Family
ID=87619087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310799717.6A Pending CN116643111A (en) | 2023-06-30 | 2023-06-30 | Relay protection device outlet pressing plate tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116643111A (en) |
-
2023
- 2023-06-30 CN CN202310799717.6A patent/CN116643111A/en active Pending
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