CN2812018Y - 10KV and 35KV triphase electronics high-pressure electric energy meter - Google Patents
10KV and 35KV triphase electronics high-pressure electric energy meter Download PDFInfo
- Publication number
- CN2812018Y CN2812018Y CN 200420075997 CN200420075997U CN2812018Y CN 2812018 Y CN2812018 Y CN 2812018Y CN 200420075997 CN200420075997 CN 200420075997 CN 200420075997 U CN200420075997 U CN 200420075997U CN 2812018 Y CN2812018 Y CN 2812018Y
- Authority
- CN
- China
- Prior art keywords
- electric energy
- phase
- voltage
- mutually
- electric
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to a gauge for metering three-phase high-voltage electric energy of 10KV and 35KV, which is formed by assembling electric energy metering chips arranged on an A phase and a C phase, electromagnetic type current sensors arranged on the A phase and the C phase and capacitance type voltage sensors arranged on A-B phases and C-B phases, wherein a working power supply of the electric energy metering chips is provided by two capacitor voltage dividers for power supply arranged on the A-B phases and the C-B phases. Electric energy pulses obtained by reckoning are sent by the electric energy metering chips arranged on the A phase and the C phase to a microprocessor arranged on a B phase by an optical fiber, and an electric energy value is output after two-way of electric energy signals are synthesized by the microprocessor and displayed. A measuring cabinet and an electric measuring tank of 10KV and 35KV can be replaced by the gauge which can be used for measuring electric energy of the high voltage side of a distribution transformer.
Description
Affiliated technical field
The utility model relates to a kind of by being connected across 10kV and the 35kV three-phase high-voltage electric energy gauging table meter that two alternate single-phase high voltage electric power meters of A-B and C-B are formed.Be used to measure the on high-tension side electric energy of substation transformer.
Background technology
Be used for the 10kV of bulk sale electric weight and the high-pressure side of 35kV substation transformer at present and use 10kV and 35kV high-voltage electric-energy meter.Be divided on the structure and be installed in indoor high-voltage metering cubicle and be installed in outdoor high-voltage power metering case.They are by being connected across A-B two voltage transformer (VT) alternate with C-B and being serially connected in A, C two current transformers and three-phase two element electric energy meter mutually and forming.Electric energy metering error by ratio error, secondary lead wires pressure drop and the electric energy meter measuring error of electric current, voltage transformer (VT) with reference to JJF 1059-1999 " evaluation of uncertainty in measurement and expression " assess, can not represent with class of accuracy, the artificial possibility of selecting positive error or negative error mutual inductor so just takes place easily, the fairness of influence metering.China is 42kV to the insulating requirements 10kV electric system of high-voltage mutual inductor at present, and 35kV is 95kV, and the secondary rated load requires to have 10VA, therefore the volume and weight of high-voltage electric-energy meter is all quite big, price is also high, and power consumption in service is big, needs bigger installing space.Electromagnetic potential transformer is in operation the ferroresonance accident also takes place easily, is unfavorable for power grid security.The junction of mutual inductor and electric energy meter is anti-electricity-theft weak link.
Summary of the invention
Big, heavy in order to overcome existing 10kV and 35kV high-voltage electric-energy meter volume, the cost height, power consumption is many, the shortcoming that has potential safety hazard strengthens charging fairness and anti-electricity-theft ability, the utility model proposes a kind of 10kV and 35kV electronic type three-phase high-voltage electric energy table.It is the same with present widely used low-voltage electric energy table definite class of accuracy, and volume is little, in light weight, and economize on electricity is installed easily, and cost is lower, ferroresonance can not take place.
The technical solution adopted in the utility model is: with C electric energy computation chip and electromagnetic type current sensor are installed mutually mutually at A, hold voltage divider at A-B alternate installation capacitor voltage sensor of phase and power consumption, the electric energy processing unit of being made up of microprocessor and meter degree display is installed mutually at B with C-B.Electric energy computation chip provides working power with C-B power consumption appearance voltage divider mutually with the electric energy processing unit mutually by being installed in A-B.The secondary voltage of capacitor voltage sensor extracts with C mutually mutually at A, is input into the voltage signal mouth of electric energy computation chip as the voltage circuit signal.The output of electromagnetic type current sensor is input into the current signal mouth of electric energy computation chip as the current return signal.Electric energy computation chip is the signal multiplication of input and to time integral, the electrical energy pulse that integrating obtains sends to the microprocessor that is installed in the B phase by optical fiber, microprocessor to two road single-phase electric energy signal synthesis after output three-phase electric energy value and show with the register display.This table meter can replace 10kV and 35kV metering cabinet and electric metering box to be used for measuring the on high-tension side electric energy of substation transformer.
The beneficial effects of the utility model are that sensor and electric energy chip constitute an indivisible table meter, have improved the charging fairness, have stopped by the possibility of electric energy meter in the low pressure stealing.The Primary Conductor of electromagnetic type current sensor is that single turn runs through, and capacitor voltage sensor and power supply voltage divider are connected by a plurality of capacitor cores, and insulation system is reasonable.The size of this 10kV and 35kV electronic type high-voltage electric energy meter and weight are all little than metering cabinet and batch meter with electric pressure, and better dynamic and thermal stability performance and better technical economical index are arranged.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing 1 is the basic circuit diagram of a kind of embodiment of the utility model, and accompanying drawing 2 is outside drawings of a kind of earth-free high-voltage electric energy meter, and accompanying drawing 3 is outside drawings of another kind of earth-free high-voltage electric energy meter.
1. electromagnetic type current sensors among the figure, 2. capacitor voltage sensor, 3. power consumption appearance voltage divider, 4. electric energy computation chip, 5. optical fiber, 6. electric energy processing unit Switching Power Supply, 7. electric energy processing unit, 8. light receiving tube, 9. electric energy computation chip Switching Power Supply, 10. light-emitting tube, 11. Primary Conductor connection terminals, 12. insulation crust, 13. register windows.
Embodiment
In Fig. 1, use A, B, C sign three-phase electrical power system primary current conductor, current sensor (1) is hollow or cored coil, produce the electric signal corresponding by electromagnetic induction with the Primary Conductor electric current, capacitor voltage sensor (2) produces the electric signal corresponding with the C-B phase voltage mutually with A-B by dividing potential drop, these two electric signal are delivered to the current/voltage multiplier signal input end of electric energy computation chip (4) respectively, obtain representing the pulse output of electric energy by multiplier and time integral device, drive light-emitting tube (10) output optical pulse, be sent to the light receiving tube (8) of B phase through optical fiber (5), the light signal that receives is converted to electric pulse and delivers to the electric energy processing unit of being made up of little process chip and meter degree display (7) that is installed in the B phase, obtain the three-phase electric energy signal and use scale (or charactron and liquid crystal display) to show, power consumption holds voltage divider (3) provides electric shield to the capacitor voltage sensor on the one hand, through the supply voltage about output 100V after the dividing potential drop, after Switching Power Supply (6) and (9) rectification and inversion, power on the other hand to electric energy computation chip (4) and electric energy processing unit (7).
The device of Fig. 1 can be installed in the earth-free insulation crust (12) shown in Figure 2, forms a complete earth-free high-voltage electric energy meter.A, B, C three-phase Primary Conductor connection terminal (11) are housed on the shell (12), can be connected with high voltage bus by connection terminal.High-voltage electric energy meter also can be designed to the bus type structure that accompanying drawing 3 does not have Primary Conductor like that, and the three-phase high-voltage bus passes from the current bus bar hole.Meritorious and the reactive energy of high tension loop can read from register window (13).
Claims (2)
1. 10kV and 35kV three-phase electronic high-voltage electric energy meter, it is formed by being connected across two alternate single-phase high voltage electric power meters of A-B and C-B, it is characterized in that high-voltage electric-energy meter by be installed in A mutually and C electric energy computation chip mutually be installed in A mutually with C mutually the electromagnetic type current sensor and be installed in the A-B phase and form with C-B capacitor voltage sensor combinations mutually.
2. electronic type 10kV according to claim 1 and 35kV three-phase electric energy meter is characterized in that electric energy computation chip provides working power with C-B two power consumptions appearance voltage dividers mutually mutually by being installed in A-B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075997 CN2812018Y (en) | 2004-07-16 | 2004-07-16 | 10KV and 35KV triphase electronics high-pressure electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075997 CN2812018Y (en) | 2004-07-16 | 2004-07-16 | 10KV and 35KV triphase electronics high-pressure electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2812018Y true CN2812018Y (en) | 2006-08-30 |
Family
ID=36938409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420075997 Expired - Lifetime CN2812018Y (en) | 2004-07-16 | 2004-07-16 | 10KV and 35KV triphase electronics high-pressure electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2812018Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640124A (en) * | 2009-07-24 | 2010-02-03 | 江苏通驰自动化系统有限公司 | Suspended capacitor voltage transformer |
| CN101216510B (en) * | 2008-01-02 | 2012-05-09 | 武汉国测恒通智能仪器有限公司 | High voltage electric energy direct metered system and method |
| CN103941051A (en) * | 2014-04-08 | 2014-07-23 | 武汉国测恒通智能仪器有限公司 | Charged pluggable high voltage electric energy metering device and method |
| CN107102201A (en) * | 2017-04-01 | 2017-08-29 | 国网山东省电力公司枣庄供电公司 | A kind of integrated high-pressure electric power meter |
| CN109100554A (en) * | 2018-09-25 | 2018-12-28 | 武汉德能电网技术有限公司 | It is a kind of to dismount convenient and fast high-voltage electric-energy meter and installation method |
-
2004
- 2004-07-16 CN CN 200420075997 patent/CN2812018Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216510B (en) * | 2008-01-02 | 2012-05-09 | 武汉国测恒通智能仪器有限公司 | High voltage electric energy direct metered system and method |
| CN101640124A (en) * | 2009-07-24 | 2010-02-03 | 江苏通驰自动化系统有限公司 | Suspended capacitor voltage transformer |
| WO2011009292A1 (en) * | 2009-07-24 | 2011-01-27 | 江苏通驰自动化系统有限公司 | Suspended capacitor voltage transformer |
| CN101640124B (en) * | 2009-07-24 | 2012-09-05 | 江苏通驰自动化系统有限公司 | Suspended capacitor voltage transformer |
| CN103941051A (en) * | 2014-04-08 | 2014-07-23 | 武汉国测恒通智能仪器有限公司 | Charged pluggable high voltage electric energy metering device and method |
| CN107102201A (en) * | 2017-04-01 | 2017-08-29 | 国网山东省电力公司枣庄供电公司 | A kind of integrated high-pressure electric power meter |
| CN109100554A (en) * | 2018-09-25 | 2018-12-28 | 武汉德能电网技术有限公司 | It is a kind of to dismount convenient and fast high-voltage electric-energy meter and installation method |
| CN109100554B (en) * | 2018-09-25 | 2024-01-16 | 武汉德能电网技术有限公司 | High-voltage electric energy metering device convenient to assemble and disassemble and mounting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101216510B (en) | High voltage electric energy direct metered system and method | |
| CN101424713A (en) | Three-phase four-wire high voltage energy measuring method and device | |
| CN202258772U (en) | Epoxy pouring totally-closed support type electronic combined transformer for centrally installed switchgear | |
| CN104122526B (en) | High voltage electric energy meter with metering unit capable of being charged to replace | |
| CN2812018Y (en) | 10KV and 35KV triphase electronics high-pressure electric energy meter | |
| CN102608414B (en) | Embedded electric energy measuring method and application extension method of high voltage electrical switchgear | |
| US9128131B2 (en) | Device for measuring two phase power with single voltage input | |
| CN103941051B (en) | Charged pluggable high voltage electric energy metering device and method | |
| CN201270107Y (en) | Comprehensive experiment system for circuit | |
| CN103337905A (en) | Digitalized protection and measuring/control device integrated with metering function | |
| CN203772911U (en) | Charged pluggable high voltage electric energy metering device | |
| CN201378184Y (en) | Triphase four-wire system high voltage electric energy meter | |
| CN201364351Y (en) | Metering cabinet of high-voltage power transmission line | |
| CN201149606Y (en) | Direct measurement system for high tension electricity energy | |
| CN107102201A (en) | A kind of integrated high-pressure electric power meter | |
| CN209606517U (en) | Earth resistance tester for home circuit | |
| CN207248995U (en) | A kind of three-phase four-wire high voltage energy table | |
| CN202770874U (en) | High-voltage dry-type composite transformation ratio automatic conversion metering box | |
| CN108878115B (en) | 10kV column-mounted high-voltage integrated metering device | |
| CN201126631Y (en) | 6/10kV vertical compression type energy-saving high-voltage measuring box | |
| CN110780256A (en) | System and method for detecting accuracy of circuit breaker on primary and secondary fusion complete set of columns | |
| CN201594115U (en) | Sleeve-shaped high-voltage electric energy meter with one-phase measurement | |
| CN2929927Y (en) | Integrated outdoor dry type full closed three phase current mutual inductor of transformer | |
| CN211958551U (en) | Ring main unit with built-in ECT and EVT | |
| CN219641815U (en) | Combined multifunctional electric energy meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHAN GUOCE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHANG YUPING; PATENTEE Effective date: 20080328 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080328 Address after: Hubei province Wuhan city Jiangxia District Temple Mountain Economic Development Zone Jiangxia Avenue Road, guoce, zip code: 430023 Patentee after: Wuhan Guoce Science & Technology Co., Ltd. Address before: 1701, block B, East Yijing mansion, 618 Luo Yu Road, Hongshan District, Wuhan, Hubei, zip code: 430074 Co-patentee before: Wang Yuqiong Patentee before: Zhang yupping |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHUHAI GUOCE ELECTRONIC WATTHOUR METER SCIENCE + T Free format text: FORMER OWNER: WUHAN GUOCE SCI-TECH CO., LTD. Effective date: 20100909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430023 SPECIAL NO.1, GUOCE ROAD, JIANGXIA AVENUE, MIAOSHAN ECONOMIC DEVELOPMENT ZONE, JIANGXIA DISTRICT, WUHAN CITY, HUBEI PROVINCE TO: 519070 BUILDING 14, CUIZHU INDUSTRIAL AREA, QIANSHAN, ZHUHAI CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100909 Address after: 519070 Guangdong city in Zhuhai Province before the mountain bamboo industrial zone 14 Patentee after: ZHUHAI GUOCE ELECTRIC ENERGY INSTRUMENT TECHNOLOGY CO., LTD. Address before: 430023 Hubei Province, Wuhan city Jiangxia District Temple Mountain Economic Development Zone Jiangxia Avenue Road, China Patentee before: Wuhan Guoce Science & Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140716 Granted publication date: 20060830 |