CN201549843U - Low-voltage pre-paid measuring box - Google Patents
Low-voltage pre-paid measuring box Download PDFInfo
- Publication number
- CN201549843U CN201549843U CN200920180721XU CN200920180721U CN201549843U CN 201549843 U CN201549843 U CN 201549843U CN 200920180721X U CN200920180721X U CN 200920180721XU CN 200920180721 U CN200920180721 U CN 200920180721U CN 201549843 U CN201549843 U CN 201549843U
- Authority
- CN
- China
- Prior art keywords
- switch
- low
- controller
- vacuum contactor
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a low-voltage pre-paid measuring box, which comprises a box body. The low-voltage pre-paid measuring box is characterized in that the box body comprises a measuring chamber, a switch chamber and a control chamber; a plurality of current transformers and a vacuum contactor switch are installed in the switch chamber; an electric energy meter is installed in the measuring chamber; a controller is installed in the control chamber; three inlet wires are led into the switch chamber, then respectively connected with one current transformer in series and then connected with the vacuum contactor switch to form three outlet wires to be led out; the secondary coils of the current transformers are led to the circuit of the electric energy meter and the circuit of the controller; and the control terminal of the controller controls the switching of a corresponding vacuum contactor. The low-voltage pre-paid measuring box has the advantages of simple operation, security, reliability, low power consumption, no noise, long service life and the like; the measuring circuit, the control circuit and the vacuum contactor switch realize integration; the terminals of the current transformers and electrified bodies are not exposed; and the low-voltage pre-paid measuring box has good theft-proof performance.
Description
Technical field
The utility model relates to the device field that low pressure is surveyed electric energy metrical, is specifically related to a kind of low pressure prepayment metering case.
Background technology
Low pressure prepayment metering device is to be used for the device of medium and small load user in the control of low-pressure side electric energy metrical.Be applicable to exchange 50Hz, do low pressure prepayment metering or negative control use in 0.4kV, the 10-630A three-phase and four-line low voltage electric network system.
The utility model content
The technical problems to be solved in the utility model provides a kind of low pressure prepayment metering case, and it is not good enough to solve existing low-voltage electric energy metering case power-steeling preventing effect, and does not have technical problem such as prepayment metering function.
For addressing the above problem, the technical solution of the utility model is:
A kind of low pressure prepayment metering case includes casing, and chamber door is installed on the casing, and transparent window is arranged on the chamber door; It is characterized in that: described casing is made up of measuring room, switch gear room and control room, and three current transformers and a switch of vacuum contactor are installed in the described switch gear room, in the described measuring room electric energy meter is installed, and in the described control room controller is installed; Three-phase inlet wire insertion switch is indoor, and every phase inlet wire passes respectively draws after a current transformer is connected to switch of vacuum contactor; The wiring of current transformer is drawn respectively and is received electric energy meter and controller; Be connected by control line between described switch of vacuum contactor, electric energy meter and the controller.
Described low pressure prepayment metering case, it is characterized in that: described measuring room, control room have chamber door, and chamber door is provided with several buttons, and each button is connected with controller in the control room respectively by lead.
The beneficial effects of the utility model:
It is not good enough that the utility model has solved existing low-voltage electric energy metering case power-steeling preventing effect, and do not have technical problems such as prepayment metering function; Have simple to operate, safety and stability, advantage such as low in energy consumption, measurement loop, control loop, realize integratedly with switch of vacuum contactor, instrument transformer terminal and electrified body do not have and expose, and have good theftproof performance; The utility model entire combination is strong, economical and practical, is convenient to install, and is easy to management; Switch is a high-quality break-make equipment in the metering cabinet, reliability height, noiseless, long service life.
Description of drawings
Fig. 1 is an internal structure schematic diagram of the present utility model.
Fig. 2 is an outside schematic diagram of the present utility model.
Embodiment
Referring to Fig. 1, a kind of low pressure prepayment metering case includes casing 1, and casing 1 is separated into measuring room 2, switch gear room 3 and control room 4 by dividing plate, be respectively equipped with entrance hole and wire hole on the sidewall of casing 1, also be respectively equipped with perforate on the dividing plate between measuring room 2, switch gear room 3 and the control room 4; Three current transformers 5 and a switch of vacuum contactor 6 are installed in the switch gear room 3, electric energy meter 7 is installed in the measuring room 2, controller 8 is installed in the control room 4; The three-phase inlet wire passes in the entrance hole and insertion switch case 3 on casing 1 sidewall, and every phase inlet wire passes a current transformer respectively and is connected with switch of vacuum contactor then, and the three-phase outlet is passed the wire hole on casing 1 sidewall and drawn; Current transformer provides the no-load voltage ratio electric current for metering electric energy meter; Metering electric energy meter 7, switch of vacuum contactor 6 and controller 8 are connected by control line.
Claims (2)
1. a low pressure prepayment metering case includes casing, and chamber door is installed on the casing, and transparent window is arranged on the chamber door; It is characterized in that: described casing is made up of measuring room, switch gear room and control room, indoor three current transformers and the switch of vacuum contactor of being equipped with of described switch-box, in the described measuring room electric energy meter is installed, in the described control room controller is installed; In the three-phase inlet wire insertion switch case, every phase inlet wire passes respectively draws after a current transformer is connected to switch of vacuum contactor; The wiring of current transformer is drawn respectively and is received electric energy meter and controller; Be connected by control line between described switch of vacuum contactor, electric energy meter and the controller.
2. low pressure prepayment metering case according to claim 1, it is characterized in that: described measuring room, control room have chamber door, and chamber door is provided with several buttons, and each button is connected with controller in the control room respectively by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920180721XU CN201549843U (en) | 2009-11-20 | 2009-11-20 | Low-voltage pre-paid measuring box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920180721XU CN201549843U (en) | 2009-11-20 | 2009-11-20 | Low-voltage pre-paid measuring box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201549843U true CN201549843U (en) | 2010-08-11 |
Family
ID=42605024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920180721XU Expired - Fee Related CN201549843U (en) | 2009-11-20 | 2009-11-20 | Low-voltage pre-paid measuring box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201549843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360872A (en) * | 2011-09-26 | 2012-02-22 | 江苏金榆科技集团有限公司 | 10kV combined transformer |
-
2009
- 2009-11-20 CN CN200920180721XU patent/CN201549843U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360872A (en) * | 2011-09-26 | 2012-02-22 | 江苏金榆科技集团有限公司 | 10kV combined transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI XINCHEN ELECTRIC EQUIPMENT CO., LTD. Free format text: FORMER NAME: NINGGUO XINCHEN INDUSTRY TRADE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 242300 outer ring road south, Ningguo economic and Technological Development Zone, Anhui Patentee after: ANHUI XINCHEN ELECTRICAL EQUIPMENT CO., LTD. Address before: 242300 outer ring road south, Ningguo economic and Technological Development Zone, Anhui Patentee before: Ningbo Xinchen Commerce Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20141120 |
|
| EXPY | Termination of patent right or utility model |