CN201177643Y - Electrical energy meter of digital transforming plant - Google Patents
Electrical energy meter of digital transforming plant Download PDFInfo
- Publication number
- CN201177643Y CN201177643Y CNU2008200525688U CN200820052568U CN201177643Y CN 201177643 Y CN201177643 Y CN 201177643Y CN U2008200525688 U CNU2008200525688 U CN U2008200525688U CN 200820052568 U CN200820052568 U CN 200820052568U CN 201177643 Y CN201177643 Y CN 201177643Y
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- Prior art keywords
- transformer substation
- digital
- protocol processes
- digital signal
- processes chip
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a digital transformer substation watt-hour meter, which comprises a work power supply, a central microprocessing unit, a digital signal processor, a protocol processing chip meeting the communication protocol standard of the transformer substation, and an optical fiber interface for data transmission during operation of the meter, wherein the optical fiber interface is connected with the protocol processing chip; the protocol processing chip is connected with the digital signal processor; and a digital signal is inputted to the protocol processing chip through the optical fiber interface and then outputted to the digital signal processor for processing. The digital transformer substation watt-hour meter can achieve reception of pure digital signals of electric parameters, meet the communication protocol standard of the transformer substation and obviate the loss resulting from analog signal transmission in the conventional ammeter and the system error therefrom, thereby better meeting the requirement of a digital metering system of the digital transformer substation complying with the protocol.
Description
Technical field
The utility model relates to a kind of substation electric energy meter.
Background technology
Traditional substation electric energy meter generally all comprises electric pressure converter, current converter and an accessory power supply, the working power of electric energy meter is taken from electric pressure converter, as shown in Figure 2, simulating signal is from current transformer and voltage transformer (VT) input, process AD conversion chip is to digital signal processor, deliver to central microprocessor unit, the final table meter function that realizes after finishing calculating by digital signal processor to electric parameter.Along with the appearance of transformer substation communication stipulations (IEC61850) establishment of standard with perfect and protocol processes chip, transformer station's metering is had higher requirement, therefore how to adapt to transformer substation communication stipulations standard, realize that transformer station's metering total digitalization is present problem demanding prompt solution.
The utility model content
The purpose of this utility model is to provide a kind of transformer substation communication stipulations standard that meets, and the digital transformer substation electric energy meter of energy transmission of digital signals.
The utility model digital transformer substation electric energy meter, comprise working power, central microprocessor, digital signal processor, also comprise the protocol processes chip that meets transformer substation communication stipulations standard, the optical fiber interface that is used for showing meter work data transmission, this optical fiber interface is connected with described protocol processes chip, the protocol processes chip is connected with digital signal processor, digital signal by optical fiber interface input protocol processes chip, is transported to digital signal processor by the protocol processes chip again and handled.
Field adjustable and installation for convenience, the RJ45 interface in addition that is connected with described protocol processes chip.
Switch outside for fear of primary power and backup battery, and working power adopts the two-way redundant power supply loop of two-way internal insulation.
The utility model is owing to adopted optical fiber interface and met the protocol processes chip of transformer substation communication stipulations standard, can not only realize the reception of the pure digi-tal signal of electrical network parameter, meet transformer substation communication stipulations standard, and can avoid loss that analog signal transmission causes in traditional ammeter and the systematic error of bringing, satisfy the digitizing measuring system that digital transformer substation is followed the stipulations agreement well.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the prior art constructions synoptic diagram.
Embodiment
The utility model comprises central microprocessor 3, digital signal processor 4, also comprises protocol processes chip 5, optical fiber interface 6, RJ45 interface 7, two working powers (1,2) independently as can be seen from Figure 1, one is standby power supply in these two working powers, two-way redundant power supply loop is adopted in two working powers power supplies, has avoided the outside switching of primary power and backup battery in the prior art like this.The protocol processes chip adopts the protocol processes chip that meets the IEC61850-9-1 agreement, optical fiber interface is connected with the protocol processes chip with the RJ45 interface, the protocol processes chip is connected with digital signal processor, optical fiber interface is used for showing meter work data transmission interface, the RJ45 interface is used for on-the-spot debugging and installation, outside digital signal can be transferred to the protocol processes chip by optical fiber interface, finish calculating by digital signal processor then to electric parameter, deliver to central microprocessor again, finish table meter function.
Claims (5)
1, a kind of digital transformer substation electric energy meter, comprise working power (1,2), central microprocessor (3), with digital signal processor (4), it is characterized in that also comprising the protocol processes chip (5) that meets transformer substation communication stipulations standard, be used for showing the optical fiber interface (6) of meter work data transmission, this optical fiber interface is connected with described protocol processes chip (5), protocol processes chip (5) is connected with digital signal processor (4), digital signal by optical fiber interface (6) input protocol processes chip (5), is transported to digital signal processor (4) by the protocol processes chip again and handled.
2, digital transformer substation electric energy meter according to claim 1 is characterized in that described protocol processes chip adopts the protocol processes chip that meets the IEC61850-9-1 agreement.
3, digital transformer substation electric energy meter according to claim 1 and 2 is characterized in that the RJ45 interface (7) in addition that is connected with the protocol processes chip.
4, digital transformer substation electric energy meter according to claim 1 and 2 is characterized in that described working power adopts the two-way redundant power supply loop-type power supply of two-way internal insulation.
5, digital transformer substation electric energy meter according to claim 3 is characterized in that described working power adopts the two-way redundant power supply loop-type power supply of two-way internal insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200525688U CN201177643Y (en) | 2008-03-19 | 2008-03-19 | Electrical energy meter of digital transforming plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200525688U CN201177643Y (en) | 2008-03-19 | 2008-03-19 | Electrical energy meter of digital transforming plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201177643Y true CN201177643Y (en) | 2009-01-07 |
Family
ID=40217666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200525688U Expired - Lifetime CN201177643Y (en) | 2008-03-19 | 2008-03-19 | Electrical energy meter of digital transforming plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201177643Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053237A (en) * | 2009-10-31 | 2011-05-11 | 郑州三足科技发展有限公司 | Remote on-line detection system of electric energy metering device |
| CN104237629A (en) * | 2013-06-17 | 2014-12-24 | 苏州工业园区新宏博通讯科技有限公司 | Electric energy meter |
-
2008
- 2008-03-19 CN CNU2008200525688U patent/CN201177643Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053237A (en) * | 2009-10-31 | 2011-05-11 | 郑州三足科技发展有限公司 | Remote on-line detection system of electric energy metering device |
| CN104237629A (en) * | 2013-06-17 | 2014-12-24 | 苏州工业园区新宏博通讯科技有限公司 | Electric energy meter |
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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: WEISHENG GROUP CO.,LTD. Free format text: FORMER NAME: CHANGSHA WEISHENG ELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: No. 359, South Bank Road, Changsha hi tech Industrial Development Zone, Hunan, China: 410013 Patentee after: Wasion Group Co., Ltd. Address before: No. 359, South Bank Road, Changsha hi tech Industrial Development Zone, Hunan, China: 410013 Patentee before: Changsha Weisheng Electronics Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: WEISHENG GROUP CO.,LTD. Free format text: NEW ADDRESS: NO.468, TONGZIPO XI ROAD, CHANGSHA COUNTY HIGH-TECH DEVELOPMENT AREA, HUNAN PROVINCE, ZIP CODE:410013 |
|
| CP02 | Change in the address of a patent holder |
Address after: No. 468 west slope, Changsha hi tech Development Zone, Hunan, Tongzi 410013, China Patentee after: Wasion Group Co., Ltd. Address before: No. 359, South Bank Road, Changsha hi tech Industrial Development Zone, Hunan, China: 410013 Patentee before: Wasion Group Co., Ltd. |
|
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Xiaoping Inventor after: Yang Xiaoke Inventor after: Tian Zhongping Inventor after: Xiong Wei Inventor after: Ge Weichun Inventor after: Wang Shihui Inventor before: Zheng Xiaoping Inventor before: Yang Xiaoke Inventor before: Tian Zhongping Inventor before: bear spoil Wei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHENG XIAOPING; YANG XIAOKE; TIAN ZHONGPING; XIONG CHONGWEI TO: ZHENG XIAOPING; YANG XIAOKE; TIAN ZHONGPING; XIONG CHONGWEI; GE WEICHUN; WANG SHIHUI |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090107 |