CN201935937U - Anti-burndown single-phase electric energy meter - Google Patents
Anti-burndown single-phase electric energy meter Download PDFInfo
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- CN201935937U CN201935937U CN2010206469265U CN201020646926U CN201935937U CN 201935937 U CN201935937 U CN 201935937U CN 2010206469265 U CN2010206469265 U CN 2010206469265U CN 201020646926 U CN201020646926 U CN 201020646926U CN 201935937 U CN201935937 U CN 201935937U
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- electric energy
- energy meter
- phase electric
- temperature sensor
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Abstract
The utility model discloses an anti-burndown single-phase electric energy meter. The anti-burndown single-phase electric energy meter comprises a single-phase electric energy meter body and a small-sized temperature sensor, wherein the small-sized temperature sensor is connected with a central processing unit (CPU) of the single-phase electric energy meter and is arranged in a tail current terminal of the single-phase electric energy meter; the small-sized temperature sensor is set at the temperature of 90 DEG C on the basis that a heat resistance value of tail bakelite is approximately 135 DEG C; a node of the small-sized temperature sensor is closed when the small-sized temperature sensor exceeds 90 DEG C, current is directly transmitted to the CPU of the single-phase electric energy meter, a trip signal is sent by the CPU of the electric energy meter and directly acts on an internal control switch of the single-phase electric energy meter, meanwhile, an over-high tail temperature tripping instruction is displayed on a liquid crystal display screen of the electric energy meter, so that a tail connecting line can be conveniently overhauled; and the fault tripping reason can also be shown in a remote electric energy acquisition system. Thus, the electric energy meter can be effectively prevented from being burnt down, and safety and stability of a power transmission line can be effectively protected.
Description
Technical field
The utility model belongs to the electric energy meter technical field, is specifically related to a kind of anti-single-phase electric energy meter that burns.
Background technology
In the daily power supply, because single-phase electric energy meter table tail connects unreliable and wire diameter is not enough, the current-carrying capacity deficiency, cause the lead heating serious, heat conduction causes single-phase electric energy meter table tail temperature too high to reasons such as table tails, thereby the single-phase electric energy meter that causes low-voltage distribution network burns frequent existence, increasing along with the intelligent electric meter function, the cost of burning electric energy meter is also strengthening, sometimes a single-phase electric energy meter burns, even causes burning of telecommunication terminal and other consumers, causes power failure, have a strong impact on power supply reliability, caused manpower, material resources, the very big loss of financial resources.And at present, prevent that effectively the single-phase electric energy meter that burns seldom.
The utility model content
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and provides a kind of and can prevent effectively that electric energy meter from burning, safety and stability, effectively protects the anti-single-phase electric energy meter that burns of transmission line of electricity.
Realize that the technical scheme that the purpose of this utility model adopted is: a kind of anti-single-phase electric energy meter that burns, comprise single-phase electric energy meter body and mini-temperature sensor, described mini-temperature sensor is arranged on the table tail current terminal inside of single-phase electric energy meter body, described mini-temperature sensor is connected with single-phase electric energy meter CPU, described single-phase electric energy meter body is provided with the internal control switch, and described single-phase electric energy meter body is provided with LCD Panel.
Because the utility model is provided with mini-temperature sensor with the table tail current terminal inside of single-phase electric energy meter, according to the heat-resisting value of table tail bakelite roughly about 135 degree, 90 degree that are set at mini-temperature sensor, when surpassing 90 degree, the node closure of mini-temperature sensor, directly reach on the CPU of single-phase electric energy meter, CPU by electric energy meter sends trip signal, and directly act on the internal control switch of single-phase electric energy meter, on the LCD Panel of electric energy meter, show the indication of " the too high tripping operation of table tail temperature " simultaneously, to make things convenient for repair sheet tail connection line, simultaneously, in the system of remote power collection, also can embody this fault trip reason.The beneficial effect that brings like this is: when the single-phase electric energy meter table tail automatic tripping switch to a certain degree time that generates heat, can prevent effectively that electric energy meter from burning, and effectively protects the safety and stability of transmission line of electricity.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is a circuit diagram of the present utility model.
Embodiment
As shown in Figure 1: a kind of anti-single-phase electric energy meter that burns, comprise single-phase electric energy meter body 1 and mini-temperature sensor 2, described mini-temperature sensor 2 is arranged on table tail current terminal 4 inside of single-phase electric energy meter body 1, described mini-temperature sensor 2 is connected with single-phase electric energy meter CPU3, described single-phase electric energy meter body 1 is provided with the internal control switch, and described single-phase electric energy meter body 1 is provided with LCD Panel.
Utilize the utility model, table tail current terminal 4 inside of single-phase electric energy meter body 1 are provided with mini-temperature sensor 2, according to the heat-resisting value of table tail bakelite roughly about 135 degree, 90 degree that are set at mini-temperature sensor 2, when surpassing 90 degree, the node closure of mini-temperature sensor 2, directly reach on the single-phase electric energy meter CPU3, CPU3 sends trip signal by single-phase electric energy meter, and directly act on the internal control switch of single-phase electric energy meter, on the LCD Panel of single-phase electric energy meter, show the indication of " the too high tripping operation of table tail temperature " simultaneously, to make things convenient for repair sheet tail connection line, simultaneously, in the system of remote power collection, also can embody this fault trip reason.Like this, when the single-phase electric energy meter table tail automatic tripping switch to a certain degree time that generates heat, can prevent effectively that electric energy meter from burning, and effectively protects the safety and stability of transmission line of electricity.
Claims (1)
1. prevent burning single-phase electric energy meter for one kind, comprise single-phase electric energy meter body and mini-temperature sensor, it is characterized in that: described mini-temperature sensor is arranged on the table tail current terminal inside of single-phase electric energy meter body, described mini-temperature sensor is connected with single-phase electric energy meter CPU, described single-phase electric energy meter body is provided with the internal control switch, and described single-phase electric energy meter body is provided with LCD Panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206469265U CN201935937U (en) | 2010-12-08 | 2010-12-08 | Anti-burndown single-phase electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206469265U CN201935937U (en) | 2010-12-08 | 2010-12-08 | Anti-burndown single-phase electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201935937U true CN201935937U (en) | 2011-08-17 |
Family
ID=44447455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206469265U Expired - Fee Related CN201935937U (en) | 2010-12-08 | 2010-12-08 | Anti-burndown single-phase electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201935937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121945A (en) * | 2010-12-08 | 2011-07-13 | 河南省电力公司南阳供电公司 | Anti-overburning single-phase energy meter |
-
2010
- 2010-12-08 CN CN2010206469265U patent/CN201935937U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121945A (en) * | 2010-12-08 | 2011-07-13 | 河南省电力公司南阳供电公司 | Anti-overburning single-phase energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20121208 |