CN204945328U - Relay protection - Google Patents
Relay protection Download PDFInfo
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- CN204945328U CN204945328U CN201520691570.XU CN201520691570U CN204945328U CN 204945328 U CN204945328 U CN 204945328U CN 201520691570 U CN201520691570 U CN 201520691570U CN 204945328 U CN204945328 U CN 204945328U
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- normally closed
- normal opened
- contact
- closed contact
- opened contact
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- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model relates to electric field, disclose a kind of relay protection, this relay comprises normal opened contact and/or normally closed contact, this device comprises: electric resistance measuring apparatus, this electric resistance measuring apparatus is connected in parallel on described normal opened contact or described normally closed contact two ends, for measuring the resistance value at described normal opened contact or described normally closed contact two ends; And display device, for showing described resistance value.This relay protection can be judged by the resistance value detecting normal opened contact or normally closed contact two ends the normal opened contact of relay or normally closed contact whether abnormal, be convenient to staff and process abnormal contact in time, ensure the reliability in loop.
Description
Technical field
The utility model relates to electric field, particularly, relates to a kind of relay protection.
Background technology
Relay protection has been widely used in electric secondary specialty, and Technical comparing is ripe.Whether current relay protection is connected by the bright of pilot lamp and the do not work normal opened contact that detects relay or normally closed contact; but; staff finds when the resistance value at normal opened contact or normally closed contact two ends reaches hundreds of Europe or contact resistance significantly changes; pilot lamp or normal instruction; this easily makes staff ignore the consideration excessive to resistance, and then causes relay fail.
Utility model content
The purpose of this utility model is to provide a kind of relay protection; this relay protection can be judged by the resistance value detecting normal opened contact or normally closed contact two ends the normal opened contact of relay or normally closed contact whether abnormal; be convenient to staff and process abnormal contact in time, ensure the reliability in loop.
To achieve these goals, the utility model provides a kind of relay protection, this relay comprises normal opened contact and/or normally closed contact, this device comprises: electric resistance measuring apparatus, this electric resistance measuring apparatus is connected in parallel on described normal opened contact or described normally closed contact two ends, for measuring the resistance value at described normal opened contact or described normally closed contact two ends; And display device, for showing described resistance value.
Preferably, described relay protection also comprises: power supply; And pilot lamp, be in series with described power supply and described normal opened contact or described normally closed contact, this pilot lamp is lighted when described normal opened contact closes, and extinguishes when normal opened contact disconnects; Or light when described normally closed contact closes, extinguish when normally closed contact disconnects.
Preferably, described electric resistance measuring apparatus is digital resistance apparatus.
Preferably, described electric resistance measuring apparatus is multimeter.
Pass through technique scheme; the basis of existing relay protection installs electric resistance measuring apparatus additional; can make staff clearly detect normal opened contact connect or normally closed contact open after resistance; be convenient to the contact of staff's record or timely process resistance exception, and then ensure the reliability in loop.
Other features and advantages of the utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for instructions, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 shows the structured flowchart of the relay protection that the utility model provides.
Description of reference numerals
10 normal opened contacts or normally closed contact 21 power supply
22 pilot lamp 30 electric resistance measuring apparatus
40 display device
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
Fig. 1 shows the structured flowchart of the relay protection that the utility model provides.As shown in Figure 1, relay comprises normal opened contact and/or normally closed contact, the relay protection that the utility model provides can comprise: electric resistance measuring apparatus 30, this electric resistance measuring apparatus 30 is connected in parallel on the two ends of normal opened contact or normally closed contact 10, for measuring the resistance value at normal opened contact or normally closed contact 10 two ends; And display device 40, for showing resistance value.Use electric resistance measuring apparatus 30, can make staff clearly detect normal opened contact connect or normally closed contact open after resistance, be convenient to the contact of staff's record or timely process resistance exception, and then ensure the reliability in loop.
With further reference to Fig. 1, relay protection can also comprise: power supply 21; Pilot lamp 22, be in series with power supply 21 and normal opened contact or normally closed contact 10, this pilot lamp 22 is lighted when described normal opened contact closes, and extinguishes when normal opened contact disconnects; Or light when described normally closed contact closes, extinguish when normally closed contact disconnects.The pilot lamp 22 of normal opened contact is bright, represents that this normal opened contact is abnormal, and the pilot lamp 22 of normally closed contact extinguishes this normally closed contact of expression extremely.But, when the resistance value at the two ends of normal opened contact or normally closed contact 10 reaches hundreds of Europe or significantly changes, do not affect the bright of pilot lamp 22 or do not work, that is, when the resistance value at normal opened contact or normally closed contact 10 two ends reaches hundreds of Europe or significantly changes, pilot lamp 22 still normally shows, and this may make staff ignore the excessive situation of resistance, therefore, can not judge that whether normal opened contact or normally closed contact be abnormal by means of only the bright of viewing lamp completely with not working.Use electric resistance measuring apparatus 30 to measure the resistance value at the two ends of normal opened contact or normally closed contact 10, and read resistance by display device 40, coordinate the instruction of pilot lamp 22 (bright or extinguishing) simultaneously, effectively can avoid the generation of above-mentioned situation.
In a preferred embodiment, electric resistance measuring apparatus 30 can integrate with power supply 21 and pilot lamp 22, reduces the spatial volume of contact measurement mechanism, but is not restricted to this.
In addition, electric resistance measuring apparatus 30 can be digital resistance apparatus, facilitates staff to read resistance, but is not restricted to this.
In addition, electric resistance measuring apparatus 30 can be multimeter, when after normal opened contact or normally closed contact action, the resistance of the ohms range of multimeter to normal opened contact or normally closed contact can be used to measure, now, staff directly can read resistance from the dial plate of multimeter.
When detecting the normal opened contact of relay or normally closed contact, in conjunction with the bright of pilot lamp 21 with do not work and the resistance measurement result of electric resistance measuring apparatus 30, staff can be avoided to ignore the situation of the excessive or variation abnormality of the resistance value at normal opened contact or normally closed contact 10 two ends, facilitate staff to record or process the contact of resistance exception in time, thus ensureing the reliability in loop.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (4)
1. a relay protection, this relay comprises normal opened contact and/or normally closed contact, it is characterized in that, this device comprises:
Electric resistance measuring apparatus, this electric resistance measuring apparatus is connected in parallel on described normal opened contact or described normally closed contact two ends, for measuring the resistance value at described normal opened contact or described normally closed contact two ends; And
Display device, for showing described resistance value.
2. relay protection according to claim 1, is characterized in that, described relay protection also comprises:
Power supply; And
Pilot lamp, be in series with described power supply and described normal opened contact or described normally closed contact, this pilot lamp is lighted when described normal opened contact closes, and extinguishes when normal opened contact disconnects; Or light when described normally closed contact closes, extinguish when normally closed contact disconnects.
3. relay protection according to claim 1 and 2, is characterized in that, described electric resistance measuring apparatus is digital resistance apparatus.
4. relay protection according to claim 1 and 2, is characterized in that, described electric resistance measuring apparatus is multimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520691570.XU CN204945328U (en) | 2015-09-08 | 2015-09-08 | Relay protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520691570.XU CN204945328U (en) | 2015-09-08 | 2015-09-08 | Relay protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204945328U true CN204945328U (en) | 2016-01-06 |
Family
ID=55012740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520691570.XU Active CN204945328U (en) | 2015-09-08 | 2015-09-08 | Relay protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204945328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919103A (en) * | 2018-05-11 | 2018-11-30 | 广东电网有限责任公司 | The anti-tripping data acquisition device of hydraulic actuating mechanism breaker and method |
-
2015
- 2015-09-08 CN CN201520691570.XU patent/CN204945328U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919103A (en) * | 2018-05-11 | 2018-11-30 | 广东电网有限责任公司 | The anti-tripping data acquisition device of hydraulic actuating mechanism breaker and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |