CN219831317U - MFT relay inspection platform - Google Patents
MFT relay inspection platform Download PDFInfo
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- CN219831317U CN219831317U CN202320833297.4U CN202320833297U CN219831317U CN 219831317 U CN219831317 U CN 219831317U CN 202320833297 U CN202320833297 U CN 202320833297U CN 219831317 U CN219831317 U CN 219831317U
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- power supply
- inspection platform
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- 238000007689 inspection Methods 0.000 title claims abstract description 31
- 238000005259 measurement Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004043 responsiveness Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The utility model relates to an MFT relay inspection platform, which comprises a connecting part, a power supply part and a measuring part. The connection portion is used for installing the MFT relay. The power supply part is connected with the connecting part and is used for enabling the setting coil or the resetting coil of the MFT relay installed on the connecting part to be electrified. The measuring part is provided with a plurality of connecting ends which are respectively connected with the connecting parts, so that the measuring part can respectively measure the resistance values of a plurality of pairs of contacts of the MFT relay arranged on the connecting parts. The MFT relay can be rapidly checked without the measures such as signal forcing, so that the possibility of misoperation in the checking and maintaining process is reduced, and the safety is improved. Meanwhile, the actual condition of power on and power off of the MFT relay can be simulated, and the resistance of each contact can be rapidly detected.
Description
Technical Field
The utility model relates to the technical field of electrical detection equipment, in particular to an MFT relay inspection platform.
Background
In general, the inspection of the relay can make the coil of the relay be powered on or powered off by additionally pulling a power supply or directly forcing an instruction on the pin of the relay, so as to measure the resistance value when the contact of the relay is opened or closed. To facilitate the measurement, special instruments for relay verification have been developed. The relay inspection platform is a special platform for supplying corresponding power to the relay, and controlling the coil of the relay to be powered on or powered off to enable the contacts of the relay to be opened or closed, so that the resistance value of the relay when the contacts of the relay are opened or closed is measured, and whether the relay meets the standard or not and whether the relay can be continuously used or not is judged through the resistance value.
The application range of the existing relay inspection platforms is generally aimed at carrying out batch verification on small relays, wherein the power supply level of the relay inspection platforms is 24VDC. However, in the environmental field of thermal power plants, MFT (boiler main fuel trip) relays are mainly used, and the usage amount of MFT relays is large, if the MFT relays are manually checked according to a conventional method, on the one hand, live measurement is easy to cause inaccurate measurement data, and is time-consuming and labor-consuming, and on the other hand, if the MFT relay coils are powered on and off by a forced signal, certain danger is brought to field equipment. Meanwhile, the MFT relay is a 110VDC double-coil magnetic latching relay, certain requirements exist for the responsiveness of a reset signal and a set signal in the operation process, and a general relay inspection platform cannot meet the requirements. Meanwhile, four pairs of contacts are shared on the MFT relay, but a common relay inspection platform can only adapt to the relay with single contact for testing.
Therefore, at present, the manual verification of the MFT relay is difficult, and a common relay inspection platform cannot complete the verification work of the MFT relay.
Disclosure of Invention
The utility model provides an MFT relay inspection platform, which aims to solve the problems that the manual inspection of an MFT relay is difficult at present and the common relay inspection platform cannot finish the inspection work of the MFT relay.
The utility model provides an MFT relay inspection platform for realizing the purpose of the utility model, which comprises: a connection part for mounting the MFT relay; a power supply part connected with the connecting part and used for enabling a setting coil or a resetting coil of the MFT relay arranged on the connecting part to be electrified; and the measuring part is provided with a plurality of connecting ends which are respectively connected with the connecting parts, so that the measuring part can respectively measure the resistance values of a plurality of pairs of contacts of the MFT relay arranged on the connecting parts.
In some of these specific embodiments, the power supply section includes: the power supply is used for supplying power; the setting switch is electrically connected with the power supply and the setting coil of the MFT relay through the connecting part and is used for controlling the setting coil of the MFT relay to obtain electricity; and the reset switch is used for controlling the reset coil of the MFT relay to be electrified.
In some of these embodiments, the measuring section includes: an ohmmeter for measuring resistance; the switching knob is connected with the ohmmeter, and a plurality of connecting ends are arranged on the switching knob, so that the ohmmeter can be respectively connected with the plurality of connecting ends through the switching knob; the plurality of connecting ends are respectively connected with the plurality of pairs of contacts of the MFT relay through the connecting parts, so that the ohm meter can respectively measure the resistance values of the plurality of pairs of contacts of the MFT relay.
In some embodiments, the connection is a relay mount; the relay base is provided with a setting coil interface and a resetting coil interface, and the setting switch and the resetting switch are respectively connected with the setting coil and the resetting coil of the MFT relay through the setting coil interface and the resetting coil interface.
In some embodiments, the relay base is further provided with a plurality of contact interfaces, each contact interface is connected with a plurality of pairs of contacts of the MFT relay, and the plurality of contact interfaces are further connected with a plurality of connection ends in a one-to-one correspondence manner, so that the connection ends can be connected with the contacts of the corresponding MFT relay through the contact interfaces.
In some embodiments, the set switch and the reset switch are both non-hold push button switches.
In some embodiments, the power source may have an input voltage in the range of 100 volts to 240 volts and an output voltage of 110 volts.
In some embodiments, the portable electronic device further comprises a box body, and the connecting portion, the power supply portion and the measuring portion are all arranged in the box body.
In some embodiments, the material of the case is an insulating material.
The utility model has the beneficial effects that:
the MFT relay inspection platform provided by the utility model can be used for rapidly inspecting the MFT relay without signal forcing and other measures, so that the possibility of misoperation in the inspection and maintenance process is reduced, and the safety is improved. Meanwhile, the actual condition of power on and power off of the MFT relay can be simulated, and the resistance of each contact can be rapidly detected.
Drawings
FIG. 1 is a schematic diagram of some embodiments of an MFT relay inspection platform in accordance with the present utility model;
FIG. 2 is a schematic diagram of the MFT relay inspection platform shown in FIG. 1 controlling the power loss at the set and reset coils of the MFT relay;
fig. 3 is a schematic diagram of the MFT relay inspection stage shown in fig. 1 measuring resistance values of multiple pairs of contacts of an MFT relay by an ohmmeter.
In the drawing, 100, a connecting part; 200. a power supply unit; 210. setting a switch; 220. a reset switch; 300. a measuring section; 310. an ohmic gauge; 320. a switching knob; 400. setting a coil; 500. a reset coil; 600. and a contact.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "top," "bottom," "inner," "outer," "axis," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model or simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "engaged," "hinged," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, 2 and 3, an MFT relay inspection platform includes a connection part 100, a power supply part 200 and a measurement part 300. The connection portion 100 is used for mounting an MFT relay. The power supply unit 200 is connected to the connection unit 100, and is configured to supply power to the set coil 400 or the reset coil 500 of the MFT relay mounted on the connection unit 100. The measuring part 300 is provided with a plurality of connection terminals, which are respectively connected to the connection parts 100, so that the measuring part 300 can respectively measure the resistance values of the plurality of pairs of contacts 600 of the MFT relay mounted on the connection parts 100.
Specifically, the MFT relay may be mounted and fixed on the connection portion 100, so that the power supply portion 200 may supply power to the set coil 400 and the reset coil 500 of the MFT relay through the connection portion 100, so as to control the set coil 400 and the reset coil 500 of the MFT relay to obtain power according to actual situations. The four connection ends of the measuring part 300 are connected to four pairs of contacts 600 of the MFT relay through the connection parts 100, respectively. When the set coil 400 or the reset coil 500 of the MFT relay is powered on or off as appropriate, the measurement section 300 can measure the resistance values of the different contacts 600, respectively.
In some embodiments of the present utility model, the power supply part 200 includes a power source, a set switch 210, and a reset switch 220. The power supply is used for supplying power. The power supply is electrically connected with the setting switch 210, the setting switch 210 is electrically connected with the setting coil 400 of the MFT relay through the connection part 100, and the setting switch 210 is used for controlling the setting coil 400 of the MFT relay to obtain electricity. The power supply is electrically connected with the reset switch 220, the reset switch 220 is electrically connected with the reset coil 500 of the MFT relay through the connection part 100, and the reset switch 220 is used for controlling the reset coil 500 of the MFT relay to be powered.
Specifically, a power supply is connected to the setting switch 210, and is connected to the setting coil 400 of the MFT relay through the setting switch 210 and the connection part 100, and the power supply is responsible for supplying power, and the setting switch 210 controls the power supply and the power failure of the MFT relay. The power supply is connected with the reset switch 220, and is connected with the reset coil 500 of the MFT relay through the reset switch 220 and the connecting part 100, the power supply is responsible for supplying power, and the reset switch 220 controls the power supply and the power failure of the MFT relay.
In some embodiments of the present utility model, the measuring part 300 includes: an ohmmeter 310 and a switching knob 320. The ohmmeter 310 is used to measure resistance. The switching knob 320 is connected with the ohmmeter 310, and a plurality of connection ends are provided on the switching knob 320, so that the ohmmeter 310 can be connected with the plurality of connection ends through the switching knob 320. The plurality of connection terminals are respectively connected with the plurality of contacts 600 of the MFT relay through the connection part 100 so that the ohmmeter 310 can respectively measure the resistance values of the plurality of contacts 600 of the MFT relay.
Specifically, the switching knob 320 is provided with four connection terminals, each of which is connected to one of the contacts 600 of the MFT relay through the connection part 100. The measuring end of the ohmmeter 310 is connected with the switching knob 320, and the measuring end of the ohmmeter 310 is respectively connected with four connecting ends by rotating the switching knob 320, so that the ohmmeter 310 can measure the resistance of the contact 600 corresponding to the connecting ends.
In some embodiments of the present utility model, the connection portion 100 is a relay base, and the MFT relay can be firmly installed. The relay base is provided with a setting coil 400 interface and a resetting coil 500 interface, and the setting switch 210 and the resetting switch 220 are respectively connected with the setting coil 400 and the resetting coil 500 of the MFT relay through the setting coil 400 interface and the resetting coil 500 interface. Through setting up of setting coil 400 interface and reset coil 500 interface, make setting switch 210 and reset switch 220 can be firm with setting coil 400 and reset coil 500 of MFT relay be connected, avoid because of contact failure leads to setting coil 400 and reset coil 500 of MFT relay can't effectively get the electricity.
In some embodiments of the present utility model, a plurality of contact interfaces are further provided on the relay base, each contact interface is connected to a plurality of pairs of contacts 600 of the MFT relay, and the plurality of contact interfaces are further connected to a plurality of connection terminals in a one-to-one correspondence, so that the connection terminals can be connected to the contacts 600 of the corresponding MFT relay through the contact interfaces. Through the arrangement of a plurality of contact interfaces, four connecting ends on the switching knob 320 can be firmly connected with four pairs of contacts 600 of the MFT relay, so that the problem that the resistance value of each pair of contacts 600 of the MFT relay cannot be measured due to poor contact is avoided.
In some embodiments of the present utility model, both set switch 210 and reset switch 220 are non-hold push button switches. The non-holding button switch is turned on when a worker presses a button, and is turned off when the worker does not press the button. As shown in fig. 2, after the operator presses the set switch 210, the set coil 400 of the MFT is only briefly energized, and similarly, after the operator presses the reset switch 220, the reset coil 500 of the MFT is also only briefly energized, so that the self-holding function of the MFT relay can be tested.
Specifically, as shown in fig. 3, four pairs of contacts 600 are provided on the MFT relay, including four pairs of normally open contacts 600 and two pairs of normally closed contacts 600, wherein the four pairs of normally open contacts 600 are 11-12 contacts 600, 14-15 contacts 600, 8-9 contacts 600 and 2-3 contacts 600, and the two pairs of normally closed contacts 600 are 7-8 contacts 600 and 2-4 contacts 600, respectively. When the set coil 400 is powered on, the 11-12 contact 600, the 14-15 contact 600, the 8-9 contact 600 and the 2-3 contact 600 are closed, the 7-8 contact 600 and the 2-4 contact 600 are opened, and at this time, the position of the switching knob 320 is sequentially rotated to T1, T2, T3 and T4, so that the resistance values of the 11-12 contact 600, the 14-15 contact 600, the 8-9 contact 600 and the 2-3 contact 600 can be measured by the ohmmeter 310. When the reset coil 500 is powered on, the 7-8 contact 600 and the 2-4 contact 600 are closed, the 11-12 contact 600, the 14-15 contact 600, the 8-9 contact 600 and the 2-3 contact 600 are opened, and at this time, the position of the switching knob 320 is rotated to T3 and T4 in sequence, so that the resistance values of the 7-8 contact 600 and the 2-4 contact 600 can be measured by the ohmmeter 310.
In some embodiments of the present utility model, the power source may have an input voltage in the range of 100 volts to 240 volts and an output voltage of 110 volts. The MFT relay is a 110VDC double-coil magnetic latching relay, and when the output voltage of a power supply is 110 volts, the requirement of the MFT relay on the responsiveness of a reset signal and a set signal in the operation process can be met.
In some embodiments of the present utility model, the power supply device further includes a case, and the connection part 100, the power supply part 200, and the measurement part 300 are disposed inside the case. The material of the box body is insulating material, and is usually thermosetting plastic, such as phenolic plastic, epoxy plastic and the like. The output voltage of the power supply of the MFT relay is higher, the temperature is higher during operation, the box body can be prevented from being melted by using thermosetting plastic, leakage caused by box body fusion can be avoided, and the danger is reduced.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," "particular examples," "one particular embodiment," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The present utility model is not limited to the above preferred embodiments, and any person skilled in the art, within the scope of the present utility model, may apply to the present utility model, and equivalents and modifications thereof are intended to be included in the scope of the present utility model.
Claims (9)
1. An MFT relay inspection platform, comprising:
a connection portion for mounting the MFT relay;
a power supply portion connected to the connection portion for powering on a set coil or a reset coil of the MFT relay mounted on the connection portion;
and the measuring part is provided with a plurality of connecting ends, and the connecting ends are respectively connected with the connecting parts, so that the measuring part can respectively measure the resistance values of a plurality of pairs of contacts of the MFT relay installed on the connecting parts.
2. The MFT relay inspection platform of claim 1, wherein the power supply portion comprises:
the power supply is used for supplying power;
the power supply is electrically connected with the setting switch, the setting switch is electrically connected with a setting coil of the MFT relay through the connecting part, and the setting switch is used for controlling the setting coil of the MFT relay to obtain electricity;
the power supply is electrically connected with the reset switch, the reset switch is electrically connected with the reset coil of the MFT relay through the connecting part, and the reset switch is used for controlling the reset coil of the MFT relay to obtain electricity.
3. The MFT relay inspection platform of claim 2, wherein the measurement portion comprises:
an ohmmeter for measuring resistance;
the switching knob is connected with the ohmmeter, and a plurality of connecting ends are arranged on the switching knob, so that the ohmmeter can be respectively connected with the plurality of connecting ends through the switching knob;
the plurality of connecting ends are respectively connected with the plurality of pairs of contacts of the MFT relay through the connecting parts, so that the ohm meter can respectively measure the resistance values of the plurality of pairs of contacts of the MFT relay.
4. The MFT relay inspection platform of claim 2 or 3, wherein the connection is a relay mount;
the relay base is provided with a setting coil interface and a resetting coil interface, and the setting switch and the resetting switch are respectively connected with the setting coil and the resetting coil of the MFT relay through the setting coil interface and the resetting coil interface.
5. The MFT relay inspection platform of claim 4 wherein the relay base is further provided with a plurality of contact interfaces, each of the contact interfaces being respectively connected to a plurality of pairs of contacts of the MFT relay, and the plurality of contact interfaces being further connected to the plurality of connection terminals in a one-to-one correspondence such that the connection terminals are connectable to the contacts of the corresponding MFT relay through the contact interfaces.
6. The MFT relay inspection platform of claim 4 wherein the set switch and the reset switch are both non-hold push button switches.
7. The MFT relay inspection stage of claim 4 wherein the power source has an inputtable voltage in the range of 100 volts to 240 volts and an output voltage of 110 volts.
8. The MFT relay inspection platform of claim 1, further comprising a tank, the connection portion, the power supply portion, and the measurement portion being disposed inside the tank.
9. The MFT relay inspection platform of claim 8, wherein the housing is an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320833297.4U CN219831317U (en) | 2023-04-12 | 2023-04-12 | MFT relay inspection platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320833297.4U CN219831317U (en) | 2023-04-12 | 2023-04-12 | MFT relay inspection platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219831317U true CN219831317U (en) | 2023-10-13 |
Family
ID=88275716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320833297.4U Active CN219831317U (en) | 2023-04-12 | 2023-04-12 | MFT relay inspection platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219831317U (en) |
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2023
- 2023-04-12 CN CN202320833297.4U patent/CN219831317U/en active Active
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