CN107064625A - A kind of three-phase four-wire high voltage energy table and measuring method - Google Patents
A kind of three-phase four-wire high voltage energy table and measuring method Download PDFInfo
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- CN107064625A CN107064625A CN201710419146.3A CN201710419146A CN107064625A CN 107064625 A CN107064625 A CN 107064625A CN 201710419146 A CN201710419146 A CN 201710419146A CN 107064625 A CN107064625 A CN 107064625A
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- 238000005259 measurement Methods 0.000 claims abstract description 11
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- 238000009530 blood pressure measurement Methods 0.000 claims description 4
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
Abstract
A kind of three-phase four-wire high voltage energy table and measuring method, including the direct gauge assembly of high pressure, three-phase electric energy comprehensive unit, the direct gauge assembly of described high pressure is made up of the direct gauge assembly of A phase high pressures, the direct gauge assembly of B phase high pressures, the direct gauge assembly of C phase high pressures, and the direct gauge assembly of A phase high pressures is connected with the A of electric energy meter, the direct gauge assembly of B phase high pressures is connected with the B of electric energy meter, the direct gauge assembly of C phase high pressures is connected with the C in electric energy meter, and complete single-phase electrical measurement and electric energy metrical；Described three-phase electric energy comprehensive unit is connected with the direct gauge assembly of A phase high pressures, the direct gauge assembly of B phase high pressures, the direct gauge assembly of C phase high pressures, and gathers the electric quantity data and energy data of each component in real time；The present invention is applied to 6kV and all kinds of high-voltage fences of the above, with good economy and more high accuracy grade.
Description
Technical field
The invention belongs to high-voltage electric energy meter technical field, more particularly to a kind of three-phase four-wire high voltage energy table and measurement side
Method.
Background technology
Existing high-voltage electric energy measurement scheme is conventional electromagnetic voltage transformer（PT）Summation current transformer（CT）And
Three-phase multifunctional electrical energy meter collectively constitutes High-voltage measuring box or high-voltage metering cubicle realizes high-voltage electric energy measurement.Also three-phase is used
The direct Electric Energy Metering Technology system of high pressure that three line modes are realized.In high-voltage electric energy measurement field, the global error of metering system
Definition, miniaturization, digitlization, low energy consumption, it is anti-electricity-theft be main developing direction.
Traditional scheme：High pressure measurement system is constituted using two groups of high pressure CT, two groups of high pressure PT and three-phase multifunctional electrical energy meter.
As shown in Figure 1.
As shown in Figure 2, high-voltage electric energy meter is measured using three-phase three-wire system two elements method, A-B is alternate and C-B phases
Between install and be mounted on low power consumption current transformer and high-voltage one-phase electric energy metrical unit in high-voltage bleeder, A phases and C phases.B phases
Electric energy comprehensive unit adds up out the total electric quantity data of three-phase and storage in real time, while realizing the multifunctional informations such as multi tariff, requirement
Management.Have a disadvantage in that：
1）, for the earth neutral system or low resistance grounding of power network, completely it cannot be guaranteed that metering accuracy.Even in
Property point isolated neutral system, power network also employs grounding through arc mostly, as long as power network has ground protection, function of measuring
It will no longer satisfy basic class of accuracy requirement.
2）, remove outside earthing mode causes above-mentioned technical proposal to be normally applicable.In 35kV and above
Under, due to the increasing of electric insulation distance, product will being made of one overall structure, the apparatus system general that above-mentioned technology is realized
It is abnormal huge, it has not been convenient to install, and without economy.
The content of the invention
It is an object of the invention to overcome the shortcomings of that prior art is present, and one kind is provided and directly measured based on single-phase high voltage
The three-phase four-wire high voltage energy table and measuring method of component.
The purpose of the present invention is completed by following technical solution, including the direct gauge assembly of high pressure, three-phase electric energy
Comprehensive unit, the direct gauge assembly of described high pressure is by the direct gauge assembly of A phase high pressures, the direct gauge assembly of B phase high pressures, C phases
The direct gauge assembly composition of high pressure, and the direct gauge assembly of A phase high pressures is connected with the A of electric energy meter, B phases high pressure directly metering group
Part is connected with the B of electric energy meter, the direct gauge assembly of C phase high pressures is connected with the C in electric energy meter, and completes single-phase electricity survey
Amount and electric energy metrical；Described three-phase electric energy comprehensive unit and the direct gauge assembly of A phase high pressures, the direct gauge assembly of B phase high pressures,
The direct gauge assembly of C phase high pressures is connected, and gathers the electric quantity data and energy data of each component in real time.
Preferably, described three-phase electric energy comprehensive unit is directly measured with the direct gauge assembly of A phase high pressures, B phases high pressure
It is connected between component, the direct gauge assembly of C phase high pressures using communication channel mode, is needing to consider answering for high-voltage electrical apparatus isolation
Fiber optic communication or communication are used with occasion, arbitrary form is then used in the application scenario that need not consider electrical isolation
Communication channel.
Preferably, it is main website that the link mode of described communication channel, which is three-phase electric energy comprehensive unit, A, B, C three-phase are high
Press the half-duplex operation mode for the main-slave structure that each component of direct gauge assembly is slave station.
Preferably, the direct gauge assembly of described high pressure include electronic current mutual inductor, electronic type voltage transformer,
Single-phase high voltage metering units, equipotential power supply unit；Wherein, electronic current mutual inductor uses LPCT or Rogowski lines
Circle, its second interface is connected with the interface of single-phase high voltage metering units；Electronic type voltage transformer uses resitstance voltage divider, electricity
Hold divider or RC divider, U1 measurement signals access the connecing in single-phase high voltage metering units that its second interface is exported
Mouthful, the U2 exported powers output access in equipotential power supply unit；The U3 that single-phase high voltage metering units are exported powers defeated
Go out access in equipotential power supply unit.
Preferably, described single-phase high voltage metering units include MCU main control chips and respectively with MCU main control chip phases
Connect computation chip, storage chip, clock chip, communication module, hardware watchdog, pulse output light power port.
Preferably, described three-phase electric energy comprehensive unit includes being used to connect A phase, B phase, C phase high pressure directly metering group
The serial ports of part, main control MCU, up serial ports, pulse delivery outlet, and lead to according to the liquid crystal display of configuration, GPRS/4G is actually needed
News, the Auxiliary Functioning Unit of button.
A kind of measuring method using three-phase four-wire high voltage energy table described above, the measuring method includes following step
Suddenly：
1）, the direct gauge assembly of A phase high pressures, the direct gauge assembly of B phase high pressures, the direct gauge assembly of C phase high pressures be respectively completed electricity
The electric quantity acquisition of A, B, C three-phase that can be in table, and the electricity claim frame of A, B, C three-phase is sent by MCU main control chips in real time；
2）, three-phase electric energy comprehensive unit real-time reception to should claim frame A, B, C three-phase electricity packet, obtain A, B, C tri-
Voltage, electric current, power, power factor, the electric energy in the period of phase, carry out a bag reading state normal after unpacking successfully
Record word；
3）, three-phase electric energy comprehensive unit for real-time reception to packet further calculated, including A, B, C three-phase always
Active and reactive electric flux is calculated, the total power of A, B, C three-phase, the calculating of total power factor.
Preferably, described MCU main control chips detect a bag reading state word for abnormal reading state, then exist
When sending electricity claim frame next time, control code is the request command that data item need to update, and the method for data item update is
Instantaneous flow data are added up with new data, cumulative electric quantity data.
Preferably, tired between described three-phase electric energy comprehensive unit and the direct gauge assembly of A phase, B phase, C phase high pressure
Power-up amount data transmission frequency is set using the time interval of two electricity cumulative data transmission.
Beneficial effects of the present invention are：
1st, this method is applied to the metering under 10kV and all kinds of network system ground connection methods of operation of all kinds of voltage class of the above；Tradition
Phase three-wire three metering method be not suitable for the nonisulated system of neutral point, due to it cannot be guaranteed that three-phase current sum（I.e.：Zero sequence electricity
Stream）It is zero always, metering method is untenable in theory, meanwhile, under higher voltage grade, the electrical distance between each phase becomes
It is bigger, phase three-wire three metering need across alternate carry out voltage sample, this is difficult to, this method thus with extensively should
With value；
2nd, it is then that can not accomplish miniaturization and spirit using conventional electromagnetic transformer technology in power transmission and transformation and distribution high-pressure system
Application living, this method uses the direct gauge assembly of high pressure, and the secondary insulating design and space for eliminating traditional transformer make
With greatly reducing the volume and weight of high-voltage meter, also the operation energy consumption of high-voltage meter significantly；
3rd, the metering device global error definition for the high-voltage great-current that this method is realized, rather than each portion in conventional metered dose device
The error of part equipment is individually defined；Conventional high-tension metering device is used voltage transformer, current transformer, electric energy meter, secondary
The gauging error data of each part such as pressure drop, draw composition error, using composition error come evaluation device using calculation formula
Overall metering performance；And in this conventional metered dose method, the calibrating of current transformer be under low voltage condition, it is and actual
Operating condition is that under high voltage condition, this brings uncertainty to the degree of accuracy of metering system；Meanwhile, voltage transformer with
The amount of influencing each other of current transformer in the operating condition, it is impossible to using actually detected means come quantization error numerical value；This method
The global error of realization define be metering device true kinematic error data, improve the accurate of high-voltage great-current electric energy metrical
Degree, is more convenient for measuring law-based control；
4th, the overall plan mesohigh insulated part of this method design only has the electronic type electricity in the direct gauge assembly of high-voltage one-phase
Transformer is pressed, electronic current mutual inductor need not carry out insulating Design, and secondary measurement loop is among an equipotential, with biography
System high-voltage meter, which is compared, enormously simplify insulating Design, hence it is evident that improve high pressure global reliability；
5th, do not use electromagnetic potential transformer, it is to avoid ferromagnetic resonance accident potential, both improve metering device reliability,
It also ensure that the safety in operation of power networks.
Brief description of the drawings
Fig. 1 is existing high-voltage electric energy meter metering system structural representation.
Fig. 2 is existing high-voltage electric energy meter measurement scheme structural representation.
Fig. 3 is the high-voltage electric energy meter metering system structural representation of the present invention.
Fig. 4 is the direct gauge assembly structural representation of high pressure of the present invention.
Fig. 5 is the single-phase high voltage metering units structural representation of the present invention.
Fig. 6 is the exemplary embodiments scenario-frame schematic diagram of the present invention.
Label in accompanying drawing is respectively：1st, the direct gauge assembly of A phases high pressure；2nd, the direct gauge assembly of B phases high pressure；3rd, C phases
The direct gauge assembly of high pressure；4th, three-phase electric energy comprehensive unit；11st, electronic current mutual inductor；12nd, electronic type voltage transformer；
13rd, single-phase high voltage metering units；14th, equipotential power supply unit；131st, MCU main control chips；132nd, computation chip；133rd, core is stored
Piece；134th, clock chip；135th, communication module；136th, hardware watchdog；137th, pulse output light power port.
Embodiment
Detailed introduction is done to the present invention below in conjunction with accompanying drawing：As shown in Figure 3, the present invention is directly measured including high pressure
Component, three-phase electric energy comprehensive unit 4, the direct gauge assembly of described high pressure is by the direct gauge assembly 1 of A phase high pressures, the high straightening of B phases
The direct gauge assembly 3 of gauge assembly 2, C phase high pressures is connect to constitute, and the direct gauge assembly 1 of A phase high pressures be connected with the A of electric energy meter,
The direct gauge assembly 2 of B phase high pressures is connected with the B of electric energy meter, the direct gauge assembly 3 of C phase high pressures is connected with the C in electric energy meter
Connect, and complete single-phase electrical measurement and electric energy metrical；Described three-phase electric energy comprehensive unit 4 and A phases high pressure directly metering group
The direct gauge assembly 2 of part 1, B phase high pressures, the direct gauge assembly 3 of C phase high pressures are connected, and gather the electricity number of each component in real time
According to and energy data.
The described direct gauge assembly 1 of three-phase electric energy comprehensive unit 4 and A phase high pressures, the direct gauge assembly 2 of B phase high pressures, C
It is connected between the direct gauge assembly 3 of phase high pressure using communication channel mode, is needing to consider the applied field that high-voltage electrical apparatus is isolated
Close and use fiber optic communication or communication, then communicated in the application scenario that need not consider electrical isolation using arbitrary form
Channel.
The link mode of described communication channel is that three-phase electric energy comprehensive unit 4 is main website, and A, B, C three-phase high-voltage are directly counted
Measure half-duplex operation mode of each component of component for the main-slave structure of slave station.
As shown in Figure 4, the direct gauge assembly of described high pressure is mutual including electronic current mutual inductor 11, electronic type voltage
Sensor 12, single-phase high voltage metering units 13, equipotential power supply unit 14；Wherein, electronic current mutual inductor 11 using LPCT or
Person's Rogowski coil, its second interface is connected with the interface of single-phase high voltage metering units 13, as long as second interface matching is single
The sampling request of phase high pressure measurement unit, not exclusively can define in accordance with the Standard Interface of IEC60044-7 standards；Electronics
Formula voltage transformer 12 is using resitstance voltage divider, capacitive divider or RC divider, and the U1 that its second interface is exported is surveyed
Interface of the signal access in single-phase high voltage metering units 13 is measured, the U2 exported powers output access in equipotential power supply unit 14
It is interior；The U3 that single-phase high voltage metering units 13 are exported powers output access in equipotential power supply unit 14.
As shown in Figure 5, described single-phase high voltage metering units 13 include MCU main control chips 131 and respectively with MCU master
Computation chip 132, storage chip 133, clock chip 134, communication module 135, hardware watchdog that control chip 131 is connected
136th, pulse output light power port 137；The major function of single-phase high voltage metering units 13 be carry out voltage, the sampling of current signal and
Split multiplication when digital and carry out power and electric flux calculating, while also including data uplink communication.
Described three-phase electric energy comprehensive unit 4 includes the serial ports for being used to connect the direct gauge assembly of A phase, B phase, C phase high pressure,
Main control MCU, up serial ports, pulse delivery outlet, and according to the liquid crystal display, GPRS/4G communications, button for being actually needed configuration
Auxiliary Functioning Unit.
A kind of measuring method using described three-phase four-wire high voltage energy table, the measuring method comprises the following steps：
1）, the direct gauge assembly 1 of A phase high pressures, the direct gauge assembly 2 of B phase high pressures, the direct gauge assembly 3 of C phase high pressures be respectively completed
The electric quantity acquisition of A, B, C three-phase in electric energy meter, and asked by the real-time electricity for sending A, B, C three-phase of MCU main control chips 131
Frame；
2）, the real-time reception of three-phase electric energy comprehensive unit 4 to should claim frame A, B, C three-phase electricity packet, obtain A, B, C tri-
Voltage, electric current, power, power factor, the electric energy in the period of phase, carry out a bag reading state normal after unpacking successfully
Record word；
3）, three-phase electric energy comprehensive unit 4 for real-time reception to packet further calculated, including A, B, C three-phase are total
Active and reactive electric flux calculate, the total power of A, B, C three-phase, the calculating of total power factor.
Described MCU main control chips 131 detect a bag reading state word for abnormal reading state, then next time
When sending electricity claim frame, control code is the request command that data item need to update, and the method for data item update is instantaneous flow
Data are added up with new data, cumulative electric quantity data；The problem of accumulation amount is lost can so be avoided.
Cumulative electric quantity data between three-phase electric energy comprehensive unit 4 and the direct gauge assembly of A phase, B phase, C phase high pressure is sent
Frequency needs to be set.The passing time interval of mutual electricity cumulative data is too short, then the three-phase electric energy for communicating main website is integrated
The normal tasks processing of the direct gauge assembly of the A phase, B phase, C phase high pressure of unit 4 and slave station is difficult to complete, and interval is tired out as oversize
Addend is not suitable with the requirement of user according to updating unavoidably not in time.The time interval of two electricity cumulative data transmission, is used as three
The design parameter that phase electric energy comprehensive unit 4 is configured to the direct gauge assembly of A phase, B phase, C phase high pressure.Such as, it can set in advance
Put 1 minute each phase component and send an electric quantity data to comprehensive unit.
Task includes：Pair when task, real time data task, cumulative electric quantity data task.
Cumulative electric quantity data should include electricity corresponding record time, specific form：
Time：YYYY-MM-DD-HH-MM-SS, such as 20160404245959,
Active energy：It is positive, reverse,
Capacity of idle power：It is positive, reverse.
The form of described packet, be according to sequencing：Frame head, address code, control code, data length, in data
Hold, verification and, postamble.Specific frame head, postamble, address code, control code, data content form can be defined independently, can also be joined
Communications Protocol Specification is answered in photograph.
Typical implementer's case of this measuring method is as follows：As shown in Figure 6,
Three direct gauge assemblies of 10kV single-phase high voltages are respectively completed the electric quantity acquisition of A, B, C three-phase, three-phase electric energy comprehensive unit
Communicated by RF wireless modes and the direct gauge assembly of each single-phase high voltage, the electric quantity data of each phase is obtained in real time, add up three in real time
The instantaneous flow data of mutually total electric flux, in real time monitoring items.The global error of Measurment of Quantities of Three -- Phase high Voltage electric is direct by each single-phase high voltage
Gauge assembly determines that the global error of 10kV high pressure measurements can reach 0.2S grades.
It is understood that it will be understood by those skilled in the art that being subject to technical scheme and inventive concept
It should all belong to the protection domain of appended claims of the invention with replacing or changing.
Claims (9)
1. a kind of three-phase four-wire high voltage energy table, including the direct gauge assembly of high pressure, three-phase electric energy comprehensive unit（4）, it is special
Levy and be：The direct gauge assembly of described high pressure is by the direct gauge assembly of A phase high pressures（1）, the direct gauge assembly of B phase high pressures（2）、
The direct gauge assembly of C phase high pressures（3）Composition, and the direct gauge assembly of A phase high pressures（1）Be connected with the A of electric energy meter, B phase high pressures
Direct gauge assembly（2）Be connected with the B of electric energy meter, the direct gauge assembly of C phase high pressures（3）It is connected with the C in electric energy meter, and
The single-phase electrical measurement of completion and electric energy metrical；Described three-phase electric energy comprehensive unit（4）With the direct gauge assembly of A phase high pressures
（1）, the direct gauge assembly of B phase high pressures（2）, the direct gauge assembly of C phase high pressures（3）It is connected, and gathers the electricity of each component in real time
Measure data and energy data.
2. three-phase four-wire high voltage energy table according to claim 1, it is characterised in that：Described three-phase electric energy integrates single
Member（4）With the direct gauge assembly of A phase high pressures（1）, the direct gauge assembly of B phase high pressures（2）, the direct gauge assembly of C phase high pressures（3）It
Between be connected using communication channel mode, in the application scenario for needing to consider high-voltage electrical apparatus isolation using fiber optic communication or wireless
Communication mode, arbitrary form communication channel is then used in the application scenario that need not consider electrical isolation.
3. three-phase four-wire high voltage energy table according to claim 2, it is characterised in that：The link of described communication channel
Mode is three-phase electric energy comprehensive unit（4）For main website, each component of the direct gauge assembly of A, B, C three-phase high-voltage is the MS master-slave of slave station
The half-duplex operation mode of structure.
4. three-phase four-wire high voltage energy table according to claim 1, it is characterised in that：Described high pressure directly metering group
Part includes electronic current mutual inductor（11）, electronic type voltage transformer（12）, single-phase high voltage metering units（13）, equipotential supply
Electric unit（14）；Wherein, electronic current mutual inductor（11）Using LPCT or Rogowski coil, its second interface with it is single-phase
High pressure measurement unit（13）Interface be connected；Electronic type voltage transformer（12）Using resitstance voltage divider, capacitive divider or
Person's RC divider, the U1 measurement signals that its second interface is exported are accessed in single-phase high voltage metering units（13）Interface, institute
The U2 of output powers output access in equipotential power supply unit（14）It is interior；Single-phase high voltage metering units（13）The U3 exported powers
Output access is in equipotential power supply unit（14）It is interior.
5. three-phase four-wire high voltage energy table according to claim 4, it is characterised in that：Described single-phase high voltage metering is single
Member（13）Including MCU main control chips（131）And respectively with MCU main control chips（131）The computation chip being connected（132）, storage
Chip（133）, clock chip（134）, communication module（135）, hardware watchdog（136）, pulse output light power port（137）.
6. three-phase four-wire high voltage energy table according to claim 1, it is characterised in that：Described three-phase electric energy integrates single
Member（4）Including the serial ports for connecting the direct gauge assembly of A phase, B phase, C phase high pressure, main control MCU, up serial ports, pulse output
Mouthful, and the Auxiliary Functioning Unit according to the liquid crystal display, GPRS/4G communications, button for being actually needed configuration.
7. a kind of measuring method using three-phase four-wire high voltage energy table as claimed in claim 1, it is characterised in that：The survey
Amount method comprises the following steps：
1）, the direct gauge assembly of A phase high pressures（1）, the direct gauge assembly of B phase high pressures（2）, the direct gauge assembly of C phase high pressures（3）Point
The electric quantity acquisition of A, B, C three-phase that Wan Cheng be in electric energy meter, and pass through MCU main control chips（131）A, B, C three-phase are sent in real time
Electricity claim frame；
2）, three-phase electric energy comprehensive unit（4）Real-time reception to should claim frame A, B, C three-phase electricity packet, obtain A, B, C
Voltage, electric current, power, power factor, the electric energy in the period of three-phase, carry out a bag reading state normal after unpacking successfully
Record word；
3）, three-phase electric energy comprehensive unit（4）For real-time reception to packet further calculated, including A, B, C three-phase
Total active and reactive electric flux is calculated, the total power of A, B, C three-phase, the calculating of total power factor.
8. the measuring method of three-phase four-wire high voltage energy table according to claim 7, it is characterised in that：Described MCU
Main control chip（131）A bag reading state word is detected for abnormal reading state, then is sending electricity claim frame next time
When, control code is the request command that need to update of data item, and the method for data item update is instantaneous flow data with new data,
Cumulative electric quantity data is added up.
9. the measuring method of three-phase four-wire high voltage energy table according to claim 7, it is characterised in that：Described three-phase
Electric energy comprehensive unit（4）Cumulative electric quantity data transmission frequency between the direct gauge assembly of A phase, B phase, C phase high pressure uses two
The time interval of individual electricity cumulative data transmission is set.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407029A (en) * | 2018-11-30 | 2019-03-01 | 武汉奇竹科技有限公司 | A kind of high pressure dosing apparatus integration error on-line testing device |
| CN111308191A (en) * | 2020-03-26 | 2020-06-19 | 国家能源集团宁夏煤业有限责任公司 | Coal mine electric energy metering system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2812017Y (en) * | 2005-03-10 | 2006-08-30 | 武汉国测科技股份有限公司 | Single-phase high-voltage electric energy metering module |
| JP2008003055A (en) * | 2006-06-26 | 2008-01-10 | Mitsubishi Electric Corp | Watt-hour meter control device and watt-hour meter |
| CN101183485A (en) * | 2007-11-02 | 2008-05-21 | 江苏通驰自动化系统有限公司 | Distribution transformer automatic gauging device |
| CN101860080A (en) * | 2010-05-18 | 2010-10-13 | 武汉国测科技股份有限公司 | Distribution network metering and protection integral device suspended at high-voltage side |
| CN102053203A (en) * | 2010-11-04 | 2011-05-11 | 武汉国测恒通智能仪器有限公司 | Detection method and device for high-voltage power quality |
| CN103728493A (en) * | 2012-10-12 | 2014-04-16 | 苏州工业园区新宏博通讯科技有限公司 | Multi-path single-phase and three-phase mixed electric energy metering device and method |
| CN104091435A (en) * | 2014-06-23 | 2014-10-08 | 航天科工深圳（集团）有限公司 | Photovoltaic device and master station data communicating method and photovoltaic power generation system |
| CN204789750U (en) * | 2015-07-21 | 2015-11-18 | 威胜集团有限公司 | High voltage energy meter |
| CN205749669U (en) * | 2015-12-15 | 2016-11-30 | 黑龙江龙电电气有限公司 | A kind of three-phase remote bill control intelligent electric energy meter |
| CN207248995U (en) * | 2017-06-06 | 2018-04-17 | 宁波恒力达科技有限公司 | A kind of three-phase four-wire high voltage energy table |
-
2017
- 2017-06-06 CN CN201710419146.3A patent/CN107064625A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2812017Y (en) * | 2005-03-10 | 2006-08-30 | 武汉国测科技股份有限公司 | Single-phase high-voltage electric energy metering module |
| JP2008003055A (en) * | 2006-06-26 | 2008-01-10 | Mitsubishi Electric Corp | Watt-hour meter control device and watt-hour meter |
| CN101183485A (en) * | 2007-11-02 | 2008-05-21 | 江苏通驰自动化系统有限公司 | Distribution transformer automatic gauging device |
| CN101860080A (en) * | 2010-05-18 | 2010-10-13 | 武汉国测科技股份有限公司 | Distribution network metering and protection integral device suspended at high-voltage side |
| CN102053203A (en) * | 2010-11-04 | 2011-05-11 | 武汉国测恒通智能仪器有限公司 | Detection method and device for high-voltage power quality |
| CN103728493A (en) * | 2012-10-12 | 2014-04-16 | 苏州工业园区新宏博通讯科技有限公司 | Multi-path single-phase and three-phase mixed electric energy metering device and method |
| CN104091435A (en) * | 2014-06-23 | 2014-10-08 | 航天科工深圳（集团）有限公司 | Photovoltaic device and master station data communicating method and photovoltaic power generation system |
| CN204789750U (en) * | 2015-07-21 | 2015-11-18 | 威胜集团有限公司 | High voltage energy meter |
| CN205749669U (en) * | 2015-12-15 | 2016-11-30 | 黑龙江龙电电气有限公司 | A kind of three-phase remote bill control intelligent electric energy meter |
| CN207248995U (en) * | 2017-06-06 | 2018-04-17 | 宁波恒力达科技有限公司 | A kind of three-phase four-wire high voltage energy table |
Non-Patent Citations (3)
| Title |
|---|
| 王鹏等: "一种全数字化高压电能计量系统", 《电力系统自动化》, no. 06 * |
| 胡庆瑜;: "10kV配电网的电能整体计量技术分析", 科技资讯, no. 25, pages 130 * |
| 郭琳云;尹项根;卜正良;胡顺;: "10kV配电网的电能整体计量技术研究", 水电能源科学, vol. 27, no. 05, pages 211 - 213 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407029A (en) * | 2018-11-30 | 2019-03-01 | 武汉奇竹科技有限公司 | A kind of high pressure dosing apparatus integration error on-line testing device |
| CN111308191A (en) * | 2020-03-26 | 2020-06-19 | 国家能源集团宁夏煤业有限责任公司 | Coal mine electric energy metering system |
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