Automatic checking device for outlet relay of relay protection operation box
By drawing out spare contacts in the relay protection operation box and setting up a warning device, the problem of difficulty in accurately judging the relay operation in the closed operation box is solved, and accurate operation voltage range inspection and relay operation judgment are achieved.
Patent Information
- Application Number
- CN202420943939.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the highly closed relay protection operation box, some outlet relays do not lead to backup contacts, resulting in the inability to check the operating voltage range, and there is a lot of on-site interference, making it difficult to accurately judge the operation of the relay.
Design a relay protection operation box outlet relay automatic calibration device, which forms two sets of spare contacts by drawing out all outlet relays, and sets a warning device on the terminal strip, such as indicator lights or buzzers, by applying voltage Promote the relay to operate, and use the warning device to accurately capture the relay's action and return moment.
It realizes accurate judgment of the relay operation in a highly closed operating box, avoids misjudgment, and improves the accuracy and reliability of the operation voltage range inspection.
Smart Images
Figure CN222482384U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automatic calibration of a relay protection operation box, in particular to an automatic calibration device for an outlet relay of a relay protection operation box. Background Art
[0002] The relay protection operation box contains two sets of phase tripping circuits, one set of phase closing circuits, and is equipped with multiple operation interfaces. The protection device and other related equipment can open and close the circuit breaker through various relay devices in the operation box. The operation box uses fully sealed, high-impedance, low-power relays, which greatly reduces the power consumption and heat generation of the device and improves the moisture-proof performance of the device, thereby improving the safety of the device.
[0003] According to the inspection regulations for relay protection and power grid safety automatic devices, the operating voltage range of the output relay in the operation box should also be inspected, and its value should be between 55% and 70% of the rated voltage. For relays in other logic circuits, they should be able to operate reliably at 80% of the rated voltage. It is necessary to calibrate the reclosing relay (ZHJ), manual closing relay (1SHJ), manual tripping relay (1STJ), starting reclosing starting failure relay (TJQ), non-starting reclosing starting failure relay (TJR), and non-starting reclosing non-starting failure relay (TJF) on site. Add the DC positive power supply to terminals 4D83, 4D84, 4D74, etc., and add the DC negative power supply to the negative power supply common terminal. Apply different test voltages according to different DC power supply voltage levels (110V, 220V). Taking 220V DC voltage as an example, when the applied voltage is below 121V (55%), the relay will not operate reliably; when the applied voltage is between 121V and 154V (70%), the relay will operate reliably.
[0004] However, the highly enclosed nature of the operating box also makes it more difficult to calibrate the relay action value. Some export relays do not have spare contacts connected to the test terminal block, making it impossible to test the contacts of the export relays. The only way to judge the relay action on site is to listen to the sound of the contact closing. However, the sound of the contact action is relatively small, and there are many interferences on site, making it difficult to accurately judge the relay action. Utility Model Content
[0005] The utility model provides an automatic checking device for an outlet relay of a relay protection operation box, which solves the problem that there are many on-site interferences and it is difficult to accurately judge the action status of the relay.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A relay automatic calibration device for an output relay of a relay protection operation box comprises two groups of spare contacts. The first group of spare contacts comprises a closing contact and a tripping circuit contact connected in parallel, and the second group of spare contacts comprises a second tripping circuit contact connected in parallel. One section of the two groups of spare contacts is connected to a terminal block, and the two groups of spare contacts are provided with warning devices.
[0008] Preferably, the warning device is an indicator light or a buzzer.
[0009] Preferably, the working power supply of the warning device is DC or AC 12V.
[0010] Preferably, the warning device is connected to the other end of the two sets of spare contacts.
[0011] Preferably, the warning device is arranged on the terminal block.
[0012] Preferably, the closing contacts include reclosing contacts, manual closing contacts and manual opening contacts.
[0013] Preferably, the trip circuit contacts include a first-way starting reclosing switch starting failure relay contact, a first-way non-starting reclosing switch starting failure relay contact, and a first-way non-starting reclosing switch non-starting failure relay contact.
[0014] Preferably, the second tripping circuit contacts include a second-path starting reclosing start failure relay, a second-path non-starting reclosing start failure relay, and a second-path non-starting reclosing non-start failure relay.
[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides an automatic check device for the output relay of the relay protection operation box, which leads out all the spare contacts of the output relay to form two groups of spare contacts, and divides the spare contacts of all the output relays into two groups, which are led out to the terminal block respectively. All the contacts are connected in parallel and led out to the terminal block as a common terminal, and the other ends of the contacts are led out to the terminal block respectively, which is convenient for carrying out the test. A warning device is designed on the terminal block. When the voltage is applied to cause the relay to operate, the relay contact is reliably closed. Through the warning device, the contact operation status can be conveniently checked, avoiding the use of the means of listening to the sound to judge the grounding operation status, which is easy to cause misjudgment.
[0016] Furthermore, the warning device uses an indicator light or a buzzer, which can accurately capture the moment of relay action and return, so that the relay action and return voltage can be accurately recorded and the return coefficient of the relay can be accurately calculated. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the connection of the first group of spare contacts of an automatic calibration device for an outlet relay of a relay protection operation box of the utility model;
[0018] Figure 2 This is a schematic diagram of the connection of the second set of spare contacts of the automatic calibration device for the outlet relay of a relay protection operation box of the utility model;
[0019] In the figure: 1- warning device. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0023] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0024] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0027] like Figure 1 and Figure 2 As shown, the utility model provides an automatic check device for the outlet relay of a relay protection operation box, comprising two groups of spare contacts, wherein the first group of spare contacts comprises a closing contact and a tripping circuit contact connected in parallel, and the second group of spare contacts comprises a second tripping circuit contact connected in parallel, and one section of the two groups of spare contacts is connected to a terminal block, and the two groups of spare contacts are provided with a warning device 1,
[0028] For highly integrated relay protection operation boxes, some of the output relay contacts are not led out to the terminal block, making it impossible to conduct relay action voltage tests. The design leads out all the output relay spare contacts to facilitate testing.
[0029] Another embodiment of the utility model provides an automatic check device for an outlet relay of a relay protection operation box, comprising two sets of spare contacts, wherein the first set of spare contacts comprises a closing contact and a tripping circuit contact connected in parallel, and the second set of spare contacts comprises a second tripping circuit contact connected in parallel, a section of the two sets of spare contacts is connected to a terminal block, and the two sets of spare contacts are provided with a warning device 1;
[0030] The design divides the spare contacts of all the output relays into two groups, which are led out to the terminal blocks respectively. All the contacts are connected in parallel at one end and led out to the terminal block as the common end, and the other ends of the contacts are led out to the terminal blocks respectively. The terminal block layout refers to the relay schematic diagram, and the contacts are designed in adjacent terminal blocks from top to bottom to facilitate the test.
[0031] The warning device 1 is an indicator light or a buzzer, which is used to remind test data recording. The indicator light or buzzer is designed on the terminal block, and the working power is applied to form a complete circuit. When the voltage is applied to cause the relay to operate, the relay contacts are reliably closed. Through the indicator light or buzzer, the contact operation can be easily checked, avoiding the use of listening to the sound to judge the grounding operation, which is easy to cause misjudgment. Through the indicator light or buzzer, the relay operation and return moment can be accurately captured, so the relay operation and return voltage can be accurately recorded, and the return coefficient of the relay can be accurately calculated.
[0032] Another embodiment of the utility model provides an automatic calibration device for an outlet relay of a relay protection operation box, comprising two groups of spare contacts, wherein the first group of spare contacts comprises a closing contact and a tripping circuit contact connected in parallel, and the second group of spare contacts comprises a second tripping circuit contact connected in parallel, a section of the two groups of spare contacts is connected to a terminal block, and a warning device 1 is provided on the two groups of spare contacts.
[0033] Another embodiment of the utility model provides an automatic calibration device for an outlet relay of a relay protection operation box, comprising two groups of spare contacts, wherein the first group of spare contacts comprises a closing contact and a tripping circuit contact connected in parallel, and the second group of spare contacts comprises a second tripping circuit contact connected in parallel, a section of the two groups of spare contacts is connected to a terminal block, and a warning device 1 is provided on the two groups of spare contacts.
[0034] The warning device 1 is connected to the other end of the two sets of spare contacts.
[0035] Another embodiment of the utility model provides an automatic calibration device for an outlet relay of a relay protection operation box, comprising two groups of spare contacts, wherein the first group of spare contacts comprises a closing contact and a tripping circuit contact connected in parallel, and the second group of spare contacts comprises a second tripping circuit contact connected in parallel, a section of the two groups of spare contacts is connected to a terminal block, and a warning device 1 is provided on the two groups of spare contacts.
[0036] The warning device 1 is arranged on the terminal block, providing a variety of position installation methods for the warning device.
[0037] Another embodiment of the utility model provides an automatic calibration device for an outlet relay of a relay protection operation box, comprising two groups of spare contacts, wherein the first group of spare contacts comprises a closing contact and a tripping circuit contact connected in parallel, and the second group of spare contacts comprises a second tripping circuit contact connected in parallel, a section of the two groups of spare contacts is connected to a terminal block, and a warning device 1 is provided on the two groups of spare contacts.
[0038] The closing contacts include reclosing contacts, manual closing contacts and manual opening contacts.
[0039] Another embodiment of the utility model provides an automatic calibration device for an outlet relay of a relay protection operation box, comprising two groups of spare contacts, wherein the first group of spare contacts comprises a closing contact and a tripping circuit contact connected in parallel, and the second group of spare contacts comprises a second tripping circuit contact connected in parallel, a section of the two groups of spare contacts is connected to a terminal block, and a warning device 1 is provided on the two groups of spare contacts.
[0040] The trip circuit contacts include a first-way starting reclosing switch starting failure relay contact, a first-way non-starting reclosing switch starting failure relay contact, and a first-way non-starting reclosing switch non-starting failure relay contact.
[0041] Another embodiment of the utility model provides an automatic calibration device for an outlet relay of a relay protection operation box, comprising two groups of spare contacts, wherein the first group of spare contacts comprises a closing contact and a tripping circuit contact connected in parallel, and the second group of spare contacts comprises a second tripping circuit contact connected in parallel, a section of the two groups of spare contacts is connected to a terminal block, and a warning device 1 is provided on the two groups of spare contacts.
[0042] The second tripping circuit contacts include a second-way starting reclosing start failure relay, a second-way non-starting reclosing start failure relay, and a second-way non-starting reclosing non-start failure relay.
[0043] Another embodiment of the utility model provides an automatic calibration device for the output relay of a relay protection operation box, wherein the relay protection operation box comprises two groups of phase tripping circuits and one group of phase closing circuits, wherein the reclosing, manual closing, manual opening and the first tripping circuit share a first group of DC operating power supply. Therefore, in the design of spare contacts, the reclosing contact (ZHJ), manual closing contact (1SHJ), manual opening contact (1STJ), the first starting reclosing starting failure relay (TJQ), the first non-starting reclosing starting failure relay (TJR), and the first non-starting reclosing non-starting failure relay (TJF) are designed in parallel. One end of the 6 contacts is connected in parallel and led out to the terminal block (4DXX), and the other end of the contact is connected to the indicator light or the buzzer and led out to the terminal block (4DXX). The design ideas of the second starting reclosing starting failure relay (TJQ), the second non-starting reclosing starting failure relay (TJR), and the second non-starting reclosing non-starting failure relay (TJF) are the same as those of the first contact.
[0044] The working power supply of the indicator light or buzzer is AC or DC 12V, and the working power supply can be output through the relay protection tester. The indicator light or buzzer can be directly installed on the terminal block. After the voltage is applied by the relay protection tester to cause the relay to operate, the relay contacts are closed, the corresponding indicator light is on or the buzzer sounds, and the relay protection tester action voltage can be recorded at this time; then the voltage value is gradually reduced, and when the return value of the relay is reached, the relay contacts are reset (disconnected), the corresponding indicator light goes out or the buzzer stops sounding, and the return voltage of the relay protection tester can be recorded at this time, thereby calculating whether the return coefficient of the relay meets the requirements.
[0045] Accordingly, a test device can be designed separately, with a built-in 12V working power supply and indicator light or buzzer, and a retractable middle part to adapt to the test of different terminals. The device has a pin at each end, which can be easily inserted into the terminal block for testing. Designing a small test device with a built-in working power supply and indicator light or buzzer can be used in situations where it is impossible to add an indicator light or buzzer to the terminal block, and it is also suitable for situations where the relay contacts have been led out to the terminal block. The test device is retractable, and the pins at both ends of the device are inserted into the terminal block corresponding to the node, which is convenient for testing.
[0046] Although the embodiments of the present invention are described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments and application fields, and the above-mentioned specific embodiments are merely illustrative and instructive, rather than restrictive. Under the guidance of the specification, a person skilled in the art can make many forms without departing from the scope of protection of the claims of the present invention, all of which belong to the scope of protection of the present invention.
Claims
1. An automatic calibration device for the output relay of a relay protection operation box, characterized in that: It comprises two groups of spare contacts, the first group of spare contacts comprises a closing contact and a tripping circuit contact connected in parallel, the second group of spare contacts comprises a second tripping circuit contact connected in parallel, one section of the two groups of spare contacts is connected to a terminal block, and the two groups of spare contacts are provided with warning devices (1).
2. The automatic calibration device for the output relay of the relay protection operation box according to claim 1 is characterized in that: The warning device (1) is an indicator light or a buzzer.
3. The automatic calibration device for the output relay of the relay protection operation box according to claim 1 is characterized in that: The working power supply of the warning device (1) is direct current or alternating current 12V.
4. The automatic calibration device for the output relay of the relay protection operation box according to claim 1 is characterized in that: The warning device (1) is connected to the other end of the two sets of spare contacts.
5. The automatic calibration device for the output relay of the relay protection operation box according to claim 1 is characterized in that: The warning device (1) is arranged on the terminal block.
6. The automatic calibration device for the output relay of the relay protection operation box according to claim 1 is characterized in that: The closing contacts include reclosing contacts, manual closing contacts and manual opening contacts.
7. The automatic calibration device for the output relay of the relay protection operation box according to claim 1 is characterized in that: The trip circuit contacts include a first-way starting reclosing switch starting failure relay contact, a first-way non-starting reclosing switch starting failure relay contact, and a first-way non-starting reclosing switch non-starting failure relay contact.
8. The automatic calibration device for the output relay of the relay protection operation box according to claim 1 is characterized in that: The second tripping circuit contacts include a second-way starting reclosing start failure relay, a second-way non-starting reclosing start failure relay, and a second-way non-starting reclosing non-start failure relay.