WO2009065294A1 - Auto-metering unit for power distribution transformer - Google Patents
Auto-metering unit for power distribution transformer Download PDFInfo
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- WO2009065294A1 WO2009065294A1 PCT/CN2008/001765 CN2008001765W WO2009065294A1 WO 2009065294 A1 WO2009065294 A1 WO 2009065294A1 CN 2008001765 W CN2008001765 W CN 2008001765W WO 2009065294 A1 WO2009065294 A1 WO 2009065294A1
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- metering
- distribution transformer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
Definitions
- the invention relates to an automatic electric energy metering device applied to a distribution transformer, in particular to a distribution transformer for realizing primary side, secondary side electric energy metering, distribution transformer operation condition monitoring and having wireless data (middle A metering device for high-voltage power line carrier data, fiber-optic data transmission functions. It can be applied to electric energy metering, distribution transformer operation parameter monitoring and distribution variable line loss calculation.
- the power sector is indirectly conducting power metering and electrical condition monitoring through the power distribution back-end equipment outside the distribution transformer.
- the metering equipment is not only easily altered or destroyed, but also the measurement and measurement links cause construction inconvenience and data. Inaccurate measurement and other issues.
- the collection of existing energy metering and distribution work states is indirect, or not quantitative enough, and becomes a bottleneck for improving the level of power distribution management.
- the object of the present invention is to provide an automatic metering device for distribution transformers, which is used for directly realizing energy metering and collecting distribution transformer running state information for distribution transformers, in view of the shortcomings of current distribution energy metering and distribution parameter monitoring technology. And quantitatively determine the state value of the relevant part.
- the implementation of the device uses a wireless or medium-high voltage power line carrier or optical fiber to implement data transmission, thereby realizing local or remote management and monitoring of energy metering and distribution conditions.
- the technical solution of the invention is: an automatic metering device applied to a distribution transformer, which comprises a floating power supply unit, a high voltage capacitor divider, a wireless transmission unit or a medium and high voltage power line carrier communication unit or an optical fiber data communication unit, and voltage mutual inductance , current transformer, metering unit, distribution parameter monitoring unit.
- the suspension power supply unit provides a power supply for the metering unit and the communication unit installed on the primary side of the distribution transformer; the metering unit mounted on the primary side relies on the signal provided by the primary side current transformer and the high voltage capacitor divider to the primary side.
- the measuring unit installed on the secondary side relies on the signal provided by the secondary side voltage transformer and current transformer to realize the secondary side of the electric quantity, voltage, current and other items.
- the measurement and distribution parameter monitoring unit is installed on the secondary side of the distribution transformer to realize the functions of distribution variable condition monitoring, variable loss and line loss calculation, phase loss, undervoltage, and power quality analysis.
- the wireless transmission unit realizes wireless data exchange between the automatic metering device of the distribution transformer and the external device.
- the medium-high voltage power line carrier communication unit serves as another way for the automatic metering device of the distribution transformer to communicate with the external device, and uses the medium-high voltage power line carrier for data exchange.
- the optical fiber data transmission unit can also be used as a data communication mode between the primary side unit and the secondary side unit of the automatic metering device of the distribution transformer, and the communication mode between the distribution transformer and other devices.
- the above-described automatic distribution metering device of the distribution transformer is further characterized in that it is mounted on a primary side and a secondary side of the transformer to realize metering.
- the installation of the primary and secondary metering units can measure the amount of electricity, current, voltage, phase, power, power factor, and grid frequency of the primary and secondary sides.
- the above-mentioned distribution transformer automatic metering device is further characterized in that the wireless transmission unit adopts two-way wireless transmission and reception, and is composed of a wireless receiving circuit and a wireless transmitting circuit.
- the above-mentioned distribution transformer automatic metering device is further characterized in that the medium-voltage power line carrier communication unit adopts a medium-high voltage power line carrier to realize data transmission and reception, and is composed of a medium-high voltage power line carrier receiving circuit and a medium-high voltage power line carrier transmitting circuit.
- the above-mentioned distribution transformer automatic metering device is further characterized in that the optical fiber communication unit is used to realize data communication between the primary side unit and the secondary side unit of the distribution transformer, and data communication between the distribution transformer and other devices.
- the above-described distribution transformer automatic metering device is further characterized in that the current transformer is a current transformer for low-voltage power.
- the automatic metering device of the distribution transformer of the invention realizes the primary side measurement of the distribution transformer according to the principle of "virtual potential". Since the automatic metering device of the distribution transformer simultaneously realizes the secondary side measurement of the distribution transformer, the calculation can be calculated.
- the variable damage which significantly improves the monitoring and management level of the power distribution, and can be easily applied to the power distribution remote management system.
- the advantages are: direct metering on the primary side; can be used as the high-voltage side metering part of the remote management system; can be used as the high-voltage side communication part of the remote management system.
- a further advantage is that a multi-point, two-point transmission of the high-voltage side related metering value can be achieved.
- FIG. 1 is a schematic block diagram of an automatic metering device for a distribution transformer of the present invention
- FIG. 2 is a schematic block diagram of a primary side circuit of an automatic metering device for a distribution transformer according to the present invention
- FIG. 3 is a block diagram of the secondary side circuit of the automatic metering device of the distribution transformer of the present invention.
- a typical remote distribution management system consists of a distribution transformer automatic metering device and a field service terminal.
- the automatic measuring device of the distribution transformer performs real-time measurement on the primary side and the secondary side of the distribution transformer and realizes internal wireless data transmission and exchange, and calculates data such as primary side, secondary side power, distribution change, and distribution case, and After wireless transmission to the field service terminal, the field service terminal performs calculation, storage and other processing on the data, and uploads the main station.
- the main station comprehensively summarizes the data of each field terminal station, and performs list, display, and plot according to the specific requirements of the business department. Comprehensive processing of printing, storage, and alarming. [Examples]
- an embodiment of the present invention is composed of a voltage transformer, a current transformer, a high voltage capacitor divider, a suspension power unit, a metering unit, a distribution parameter monitoring unit, and a wireless transmission unit
- the floating power unit is A wide dynamic stable feed power supply specially designed for taking power from a high voltage power grid, applying a bootstrap stability principle output voltage and meeting actual needs
- the wireless transmission unit adopts two-way wireless transceiver to construct an adaptive low power radio frequency transmission algorithm, Comprehensive ASK or FSK, POLLING and other system mechanisms ensure wireless data transmission between the automatic metering device and the field service terminal;
- the metering unit installed on the primary side establishes a "virtual potential" reference point for the direct loop of the floating power unit.
- the coupling voltage is applied to the loop voltage and current to measure the electric quantity, current, voltage, phase, power, power factor and grid frequency of the primary side of the distribution transformer.
- the metering unit installed on the secondary side measures the electric quantity, current and voltage of the secondary side of the distribution transformer. , phase, power, power factor, grid frequency Reading the data calculated by the metering unit installed on the primary side through the wireless transmission unit and calculating the parameters of the distribution change condition such as the distribution change and the distribution temperature; after receiving the call command of the field service terminal, the wireless transmission unit will The data is sent wirelessly to the field service terminal.
- FIG. 2 is a block diagram of the primary side circuit of the automatic metering device for distribution transformers.
- the floating power supply unit builds a low-voltage power supply based on the "virtual potential" principle with a primary side high voltage as a reference point, and provides a power supply for the primary side metering unit, the wireless transmission unit, and the processor;
- the current transformer uses a low-voltage power current transformer, The output current signal is sampled and conditioned and supplied to the metering unit;
- the high-voltage capacitor voltage divider supplies the primary side high voltage to the metering unit after sampling and signal conditioning based on the virtual ground voltage division;
- the metering unit performs the power metering and
- the data is provided to the processor, and the processor stores data for the data provided by the metering unit; after receiving the wireless command, the wireless transmission unit transmits the command to the processor, and the processor performs wireless data response according to the command request.
- Figure 3 is a block diagram of the secondary side circuit of the automatic metering device of the distribution transformer.
- the a, b, c three-phase voltage transformer provides the power supply for the secondary side circuit and provides the voltage signal required by the metering unit;
- a, b, c three-phase current transformer provides the current signal required by the metering unit;
- the metering unit measures according to the output signals of the voltage transformer and the current transformer;
- the distribution monitoring unit realizes the distribution temperature, the distribution variable loss calculation, the undervoltage, etc.
- the monitoring of the variable working condition the CPU performs unified processing on the data of the memory, the clock, the distribution monitoring unit, and the measuring unit, performs data exchange with the primary side through the wireless transmission unit, and performs processing; the CPU receives the distribution external device through the wireless transmission unit.
- the wireless command responds to the data via the wireless transmission unit according to the command requirements.
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- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A local or remote distribution management system, especially an auto-metering unit applied to a distribution transformer, comprises a suspending power supply(1), a high voltage capacitance divider(2), a current transformer(5), a wireless transmission unit(4) and a metering unit(3),which are provided in the primary winding(6) of the transformer, and a power transformer(22), a current transformer(21), a transformer parameter monitoring unit(24) and a metering unit(28),which are provided in the secondary winding(29) of the transformer. By metering the primary winding of the transformer and by utilizing the secondary winding metering realized bythe auto-metering unit, so that the loss of the transformer can be calculated.
Description
配电变压器自动计量装置 发明领域 Distribution transformer automatic metering device
本发明涉及一种应用于配电变压器的自动化电能计量装置， 具体地讲是涉及一 种应用于配电变压器实现一次侧、 二次侧电能计量、配电变压器运行状况监测并具 有无线数据 （中高压电力线载波数据、 光纤数据）传输功能的的计量装置。 可应用 于电能计量、 配电变压器运行参数监测和配电变线损计算。 The invention relates to an automatic electric energy metering device applied to a distribution transformer, in particular to a distribution transformer for realizing primary side, secondary side electric energy metering, distribution transformer operation condition monitoring and having wireless data (middle A metering device for high-voltage power line carrier data, fiber-optic data transmission functions. It can be applied to electric energy metering, distribution transformer operation parameter monitoring and distribution variable line loss calculation.
背景技术 Background technique
目前电力部门都是在配电变压器外部通过配电后端设备间接实现电能计量、配 电工况监测， 计量设备不但容易遭到改动、 破坏， 而且计量、 测量的环节较多造成 施工不便、 数据测量不准确等问题。 总之， 现有电能计量、 配变工作状态的采集都 是间接的， 或者说是不够定量的， 成为提高配电管理水平的一个瓶颈。 At present, the power sector is indirectly conducting power metering and electrical condition monitoring through the power distribution back-end equipment outside the distribution transformer. The metering equipment is not only easily altered or destroyed, but also the measurement and measurement links cause construction inconvenience and data. Inaccurate measurement and other issues. In short, the collection of existing energy metering and distribution work states is indirect, or not quantitative enough, and becomes a bottleneck for improving the level of power distribution management.
发明内容 Summary of the invention
本发明的目的是针对目前配电电能计量、 配变参数监测技术上的不足， 提供一 种配电变压器自动计量装置， 以用来直接对配电变压器实现电能计量、 采集配电变 压器运行状态信息并定量测定相关部位的状态数值。该装置的实施釆用无线方式或 中高压电力线载波或光纤实现数据发送， 从而实现电能计量、配变工况的本地或远 程管理、 监测。 The object of the present invention is to provide an automatic metering device for distribution transformers, which is used for directly realizing energy metering and collecting distribution transformer running state information for distribution transformers, in view of the shortcomings of current distribution energy metering and distribution parameter monitoring technology. And quantitatively determine the state value of the relevant part. The implementation of the device uses a wireless or medium-high voltage power line carrier or optical fiber to implement data transmission, thereby realizing local or remote management and monitoring of energy metering and distribution conditions.
本发明的技术方案是：一种应用于配电变压器的自动化计量装置， 它包括悬浮 式电源单元、 高压电容分压器、 无线传输单元或中高压电力线载波通信单元或光纤 数据通信单元、 电压互感器、 电流互感器、 计量单元、 配变参数监测单元。 悬浮式 电源单元提供供安装在配变一次侧的计量单元、通信单元工作的电源； 安装在一次 侧的计量单元依靠安装在一次侧的电流互感器和高压电容分压器提供的信号对一 次侧的电量及电压、 电流等类项的计量； 安装在二次侧的计量单元依靠安装在二次 侧的电压互感器、 电流互感器提供的信号实现二次侧的电量及电压、 电流等类项的 计量； 配变参数监测单元安装在配变内部的二次侧， 实现配变工况监测、 变损和线 损计算、 缺相、 欠压、 电能质量分析等功能。 无线传输单元实现配电变压器自动计 量装置与外部设备的无线数据交换。 中高压电力线载波通信单元作为配电变压器自 动计量装置与外部设备通信的另一种方式， 采用中高压电力线载波进行数据交换。 光纤数据传输单元亦可作为配电变压器自动计量装置一次侧单元与二次侧单元数 据通信方式、 配电变压器与其它设备的通信方式。
上述的配电变压器自动计量装置， 其进一步的特征在于它安装在配 ¾变压器的 一次侧及二次侧实现计量的装置。 安装在一、 二次计量单元可计量配变一、 二次侧 的电量、 电流、 电压、 相位、 功率、 功率因数、 电网频率。 The technical solution of the invention is: an automatic metering device applied to a distribution transformer, which comprises a floating power supply unit, a high voltage capacitor divider, a wireless transmission unit or a medium and high voltage power line carrier communication unit or an optical fiber data communication unit, and voltage mutual inductance , current transformer, metering unit, distribution parameter monitoring unit. The suspension power supply unit provides a power supply for the metering unit and the communication unit installed on the primary side of the distribution transformer; the metering unit mounted on the primary side relies on the signal provided by the primary side current transformer and the high voltage capacitor divider to the primary side. Metering of electric quantity, voltage, current, etc.; The measuring unit installed on the secondary side relies on the signal provided by the secondary side voltage transformer and current transformer to realize the secondary side of the electric quantity, voltage, current and other items. The measurement and distribution parameter monitoring unit is installed on the secondary side of the distribution transformer to realize the functions of distribution variable condition monitoring, variable loss and line loss calculation, phase loss, undervoltage, and power quality analysis. The wireless transmission unit realizes wireless data exchange between the automatic metering device of the distribution transformer and the external device. The medium-high voltage power line carrier communication unit serves as another way for the automatic metering device of the distribution transformer to communicate with the external device, and uses the medium-high voltage power line carrier for data exchange. The optical fiber data transmission unit can also be used as a data communication mode between the primary side unit and the secondary side unit of the automatic metering device of the distribution transformer, and the communication mode between the distribution transformer and other devices. The above-described automatic distribution metering device of the distribution transformer is further characterized in that it is mounted on a primary side and a secondary side of the transformer to realize metering. The installation of the primary and secondary metering units can measure the amount of electricity, current, voltage, phase, power, power factor, and grid frequency of the primary and secondary sides.
上述的配电变压器自动计量装置， 其进一步的特征在于所述无线传输单元采用 双向无线收发， 由无线接收电路和无线发送电路组成。 The above-mentioned distribution transformer automatic metering device is further characterized in that the wireless transmission unit adopts two-way wireless transmission and reception, and is composed of a wireless receiving circuit and a wireless transmitting circuit.
上述的配电变压器自动计量装置， 其进一步的特征在于所述中髙压电力线载波 通信单元采用中高压电力线载波实现数据收发， 由中高压电力线载波接收电路和中 高压电力线载波发送电路组成。 The above-mentioned distribution transformer automatic metering device is further characterized in that the medium-voltage power line carrier communication unit adopts a medium-high voltage power line carrier to realize data transmission and reception, and is composed of a medium-high voltage power line carrier receiving circuit and a medium-high voltage power line carrier transmitting circuit.
上述的配电变压器自动计量装置， 其进一步的特征在于采用光纤通信单元实现 配电变压器内部一次侧单元和二次侧单元的数据通信、配电变压器与其他设备的数 据通信。 The above-mentioned distribution transformer automatic metering device is further characterized in that the optical fiber communication unit is used to realize data communication between the primary side unit and the secondary side unit of the distribution transformer, and data communication between the distribution transformer and other devices.
上述的配电变压器自动计量装置， 更进一步的特征在于所述的电流互感器是采 用低压电力用电流互感器。 The above-described distribution transformer automatic metering device is further characterized in that the current transformer is a current transformer for low-voltage power.
本发明的配电变压器自动计量装置依据 "虚电位"原理， 实现了对配电变压器 的一次侧计量， 由于配电变压器自动计量装置同时实现配电变压器的二次侧计量， 因此可以计算出配变的变损， 从而明显提高了配电的监测管理水平， 并且还可很方 便地应用到配电远程管理***。 其优点在于： 对一次侧直接进行计量； 可作为远程 管理***的高压侧计量部分； 可作为远程管理***的高压侧通信部分。 其进一步的 优点在于可以实现对高压侧相关计量值完成多点对一点的双向传输。 The automatic metering device of the distribution transformer of the invention realizes the primary side measurement of the distribution transformer according to the principle of "virtual potential". Since the automatic metering device of the distribution transformer simultaneously realizes the secondary side measurement of the distribution transformer, the calculation can be calculated. The variable damage, which significantly improves the monitoring and management level of the power distribution, and can be easily applied to the power distribution remote management system. The advantages are: direct metering on the primary side; can be used as the high-voltage side metering part of the remote management system; can be used as the high-voltage side communication part of the remote management system. A further advantage is that a multi-point, two-point transmission of the high-voltage side related metering value can be achieved.
附图说明 DRAWINGS
图 1是本发明配电变压器自动计量装置的示意框图； 1 is a schematic block diagram of an automatic metering device for a distribution transformer of the present invention;
图 2是本发明配电变压器自动计量装置的一次侧电路原理框图； 2 is a schematic block diagram of a primary side circuit of an automatic metering device for a distribution transformer according to the present invention;
图 3是本发明配电变压器自动计量装置的二次侧电路原理框图。 3 is a block diagram of the secondary side circuit of the automatic metering device of the distribution transformer of the present invention.
具体实施方式 detailed description
以下结合附图， 对本发明的优选实施例详细介绍如下： The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings:
一个典型的远程配电管理***由配电变压器自动计量装置和现场服务终端组 成。配电变压器自动计量装置对配变的一次侧、 二次侧进行实时计量并实现内部无 线数据传输交换， 计算出一次侧、 二次侧电量、 配变变损、 配变工况等数据， 并经 无线传输到现场服务终端， 现场服务终端对这些数据进行运算、 存储等处理， 并上 传主站， 主站全面汇总各现场终端站数据， 按照业务部门的具体要求， 进行列表、 显示、 标绘、 打印、 存储和报警等综合处理。
[实施例] A typical remote distribution management system consists of a distribution transformer automatic metering device and a field service terminal. The automatic measuring device of the distribution transformer performs real-time measurement on the primary side and the secondary side of the distribution transformer and realizes internal wireless data transmission and exchange, and calculates data such as primary side, secondary side power, distribution change, and distribution case, and After wireless transmission to the field service terminal, the field service terminal performs calculation, storage and other processing on the data, and uploads the main station. The main station comprehensively summarizes the data of each field terminal station, and performs list, display, and plot according to the specific requirements of the business department. Comprehensive processing of printing, storage, and alarming. [Examples]
参见图 1， 本发明的实施例是由电压互感器、 电流互感器、 高压电容分压器、 悬浮式电源单元、 计量单元、 配变参数监测单元、 无线传输单元组成， 其中悬浮式 电源单元是一种宽动态稳定馈电电源， 专门设计用于从高压电网中取电， 应用自举 稳定原理输出电压并满足实际需要； 无线传输单元采用双向无线收发， 构建自适应 低功耗射频发送算法， 综合 ASK或 FSK、 POLLING等制式机理， 保证了配电变压 器自动计量装置与现场服务终端的无线数据传输； 安装在一次侧的计量单元对悬浮 式电源单元的直接回路建立 "虚电位"参考点， 对回路电压、 电流采用耦合方法计 量配变一次侧的电量、 电流、 电压、 相位、 功率、 功率因数、 电网频率； 安装在二 次侧的计量单元计量配变二次侧的电量、 电流、 电压、 相位、 功率、 功率因数、 电 网频率并通过无线传输单元读取安装在一次侧的计量单元计算的数据并计算配变 变损、 配变温度等配变工况参数； 无线传输单元收到现场服务终端的召测命令后， 将所有的数据通过无线发送给现场服务终端。 Referring to FIG. 1, an embodiment of the present invention is composed of a voltage transformer, a current transformer, a high voltage capacitor divider, a suspension power unit, a metering unit, a distribution parameter monitoring unit, and a wireless transmission unit, wherein the floating power unit is A wide dynamic stable feed power supply specially designed for taking power from a high voltage power grid, applying a bootstrap stability principle output voltage and meeting actual needs; the wireless transmission unit adopts two-way wireless transceiver to construct an adaptive low power radio frequency transmission algorithm, Comprehensive ASK or FSK, POLLING and other system mechanisms ensure wireless data transmission between the automatic metering device and the field service terminal; the metering unit installed on the primary side establishes a "virtual potential" reference point for the direct loop of the floating power unit. The coupling voltage is applied to the loop voltage and current to measure the electric quantity, current, voltage, phase, power, power factor and grid frequency of the primary side of the distribution transformer. The metering unit installed on the secondary side measures the electric quantity, current and voltage of the secondary side of the distribution transformer. , phase, power, power factor, grid frequency Reading the data calculated by the metering unit installed on the primary side through the wireless transmission unit and calculating the parameters of the distribution change condition such as the distribution change and the distribution temperature; after receiving the call command of the field service terminal, the wireless transmission unit will The data is sent wirelessly to the field service terminal.
图 2为配电变压器自动计量装置的一次侧电路原理框图。悬浮式电源单元基于 "虚电位"原理以一次侧高压为参考点构建低电压电源，提供供一次侧的计量单元、 无线传输单元、 处理器工作的电源； 电流互感器采用低压电力电流互感器， 其输出 的电流信号经取样、调理后提供给计量单元； 高压电容分压器将一次侧高压基于虚 地分压为低电压信号经取样、 信号调理后供给计量单元； 计量单元进行电量计量并 将数据提供给处理器， 处理器对计量单元提供的数据进行数据存储； 无线传输单元 接收到无线命令后，将命令传送给处理器，处理器依据命令要求进行无线数据应答。 Figure 2 is a block diagram of the primary side circuit of the automatic metering device for distribution transformers. The floating power supply unit builds a low-voltage power supply based on the "virtual potential" principle with a primary side high voltage as a reference point, and provides a power supply for the primary side metering unit, the wireless transmission unit, and the processor; the current transformer uses a low-voltage power current transformer, The output current signal is sampled and conditioned and supplied to the metering unit; the high-voltage capacitor voltage divider supplies the primary side high voltage to the metering unit after sampling and signal conditioning based on the virtual ground voltage division; the metering unit performs the power metering and The data is provided to the processor, and the processor stores data for the data provided by the metering unit; after receiving the wireless command, the wireless transmission unit transmits the command to the processor, and the processor performs wireless data response according to the command request.
图 3为配电变压器自动计量装置的二次侧电路原理框图， a、 b、 c三相电压互 感器提供供二次侧电路工作的电源并提供计量单元所需的电压信号； a、 b、 c三相 电流互感器提供计量单元所需的电流信号； 计量单元依据电压互感器、 电流互感器 的输出信号进行计量； 配变监测单元实现配变温度、 配变变损计算、 欠压等配变工 况的监测； CPU对存储器、 时钟、 配变监测单元、 计量单元的数据进行统一处理， 通过无线传输单元与一次侧进行数据交换并进行处理； CPU通过无线传输单元接收 配变外部设备发出的无线指令， 根据命令要求通过无线传输单元应答数据。 Figure 3 is a block diagram of the secondary side circuit of the automatic metering device of the distribution transformer. The a, b, c three-phase voltage transformer provides the power supply for the secondary side circuit and provides the voltage signal required by the metering unit; a, b, c three-phase current transformer provides the current signal required by the metering unit; the metering unit measures according to the output signals of the voltage transformer and the current transformer; the distribution monitoring unit realizes the distribution temperature, the distribution variable loss calculation, the undervoltage, etc. The monitoring of the variable working condition; the CPU performs unified processing on the data of the memory, the clock, the distribution monitoring unit, and the measuring unit, performs data exchange with the primary side through the wireless transmission unit, and performs processing; the CPU receives the distribution external device through the wireless transmission unit. The wireless command responds to the data via the wireless transmission unit according to the command requirements.
虽然本发明已以较佳实施例公开如上， 但它们并不是用来限定本发明， 任何熟 悉此技艺者， 在不脱离本发明之精神和范围内， 自当可作各种变化或润饰， 因此本 发明的保护范围应当以本申请的权利要求保护范围所界定的为准。
Although the present invention has been disclosed in the preferred embodiments as described above, they are not intended to limit the invention, and any one skilled in the art can make various changes or modifications without departing from the spirit and scope of the invention. The scope of the invention should be determined by the scope of the claims of the present application.
Claims
1、 一种配电变压器自动计量装置， 它包括悬浮式电源单元、 髙压电容分压器、 无线传输单元或者中高压电力线载波通信单元或者光纤数据传输单元、 电压互感 器、 电流互感器、 计量单元、 配变参数监测单元， 其特征在于： 1. A distribution meter automatic metering device, which comprises a floating power unit, a rolling capacitor divider, a wireless transmission unit or a medium-high voltage power line carrier communication unit or an optical fiber data transmission unit, a voltage transformer, a current transformer, and a metering Unit and distribution parameter monitoring unit, characterized in that:
所述悬浮式电源单元提供供安装在配变一次侧的计量单元、无线传输单元或者 中高压电力线载波通信单元工作的电源； 安装在一次侧的计量单元依靠安装在一次 侧的电流互感器和高压电容分压器提供的信号对一次侧的电量及电压、 电流等类项 的计量； 安装在二次侧的计量单元依靠安装在二次侧的电压互感器、 电流互感器提 供的信号实现二次侧的电量及电压、 电流等类项的计量； 配变参数监测单元安装在 配变内部的二次侧， 实现配变工况监测、 变线损计算、 缺相、 欠压、 电能质量分析 等功能； 无线传输单元或者中高压电力线载波通信单元或者光纤数据传输单元实现 配电变压器自动计量装置与外部设备的数据交换。 The floating power supply unit provides a power supply for a metering unit, a wireless transmission unit or a medium-high voltage power line carrier communication unit mounted on the primary side of the distribution transformer; the metering unit mounted on the primary side relies on a current transformer and a high voltage installed on the primary side The signal provided by the capacitor divider is used to measure the amount of electricity on the primary side, voltage, current, etc.; the metering unit installed on the secondary side relies on the signal provided by the secondary side voltage transformer and current transformer to realize the second time. Measurement of the amount of electricity, voltage, current and other items on the side; the distribution parameter monitoring unit is installed on the secondary side of the distribution transformer to realize the distribution of the working condition monitoring, variable line loss calculation, phase loss, undervoltage, power quality analysis, etc. Function; The wireless transmission unit or the medium-high voltage power line carrier communication unit or the optical fiber data transmission unit realizes data exchange between the automatic metering device of the distribution transformer and the external device.
2、 根据权利要求 1所述的配电变压器自动计量装置， 其特征在于所述的计量 单元包括一次侧计量单元和二次侧计量单元， 安装在变压器内部的实现配变一次侧 及二次侧的计量， 可计量配变一、 二次侧的电量、 电流、 电压、 相位、 功率、 功率 因数、 电网频率。 2. The automatic metering device for distribution transformer according to claim 1, wherein the metering unit comprises a primary side metering unit and a secondary side metering unit, and is installed inside the transformer to realize the primary side and the secondary side of the transformer. The metering can measure the amount of electricity, current, voltage, phase, power, power factor, and grid frequency of the secondary side.
3、 根据权利要求 1所述的配电变压器自动计量装置， 其特征在于所述无线传 输单元采用双向无线收发， 由无线接收电路和无线发送电路组成。 3. The distribution transformer automatic metering device according to claim 1, wherein the wireless transmission unit adopts two-way wireless transmission and reception, and is composed of a wireless receiving circuit and a wireless transmitting circuit.
4、 根据权利要求 1所述的配电变压器自动计量装置， 其特征在于所述中高压 电力线载波通信单元采用中高压电力线载波实现数据收发， 由中髙压电力线载波接 收电路和中高压电力线载波发送电路组成。 4. The automatic metering device for distribution transformer according to claim 1, wherein the medium-high voltage power line carrier communication unit uses a medium-high voltage power line carrier to implement data transmission and reception, and is sent by a medium-voltage power line carrier receiving circuit and a medium-high voltage power line carrier. Circuit composition.
5、 根据权利要求 1所述的配电变压器自动计量装置， 其特征在于所述采用光 纤传输单元实现配电变压器内部一次侧单元和二次侧单元的数据通信、配电变压器 与其他设备的数据通信。 5. The automatic metering device for distribution transformer according to claim 1, wherein the optical fiber transmission unit realizes data communication between the primary side unit and the secondary side unit of the distribution transformer, data of the distribution transformer and other devices. Communication.
6、 根据权利要求 1至 5之一所述的配电变压器自动计量装置， 其特征在于所 述电流互感器是采用低压电力用电流互感器。
6. Distribution transformer automatic metering device according to one of claims 1 to 5, characterized in that the current transformer is a current transformer for low voltage power.
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| CN200710134621.9 | 2007-11-02 | ||
| CNB2007101346219A CN100527181C (en) | 2007-11-02 | 2007-11-02 | Distribution transformer automatic gauging device |
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| CN100527181C (en) * | 2007-11-02 | 2009-08-12 | 江苏通驰自动化***有限公司 | Distribution transformer automatic gauging device |
| CN101354418B (en) * | 2008-09-22 | 2011-07-13 | 河南省电力公司商丘供电公司 | Power transformer test method without disconnecting wire |
| 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 |
| CN103323647B (en) * | 2013-06-07 | 2015-12-09 | 国家电网公司 | Graded insulation Electromagnetic PT primary side current monitoring device and method |
| CN103439616A (en) * | 2013-09-05 | 2013-12-11 | 国家电网公司 | Transformation-loss precision-measurement device |
| CN104515919A (en) * | 2014-12-24 | 2015-04-15 | 镇江长河电力技术有限公司 | Energy-efficiency online monitoring and analysis system of distribution transformer |
| CN104569664A (en) * | 2014-12-24 | 2015-04-29 | 镇江长河电力技术有限公司 | Analytic system provided with energy efficiency online monitoring and analyzing device for distribution transformer |
| CN104502691A (en) * | 2014-12-24 | 2015-04-08 | 镇江长河电力技术有限公司 | Online monitoring and analysis device for energy efficiency of distribution transformer |
| EP3208622B1 (en) * | 2016-02-18 | 2021-01-20 | ABB Power Grids Switzerland AG | A method and a system for measuring power loss in a power transformer |
| CN107064625A (en) * | 2017-06-06 | 2017-08-18 | 宁波恒力达科技有限公司 | A kind of three-phase four-wire high voltage energy table and measuring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934166A (en) * | 1982-08-20 | 1984-02-24 | Mitsubishi Electric Corp | Measuring device of transformer loss |
| CN2253041Y (en) * | 1996-03-18 | 1997-04-23 | 李卡 | High valtage metering power transformer |
| 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 |
| CN1866033A (en) * | 2005-05-20 | 2006-11-22 | 湖南泰通电力科技有限公司 | Real-time monitoring system for preventing electricity theft for power network |
| CN101183485A (en) * | 2007-11-02 | 2008-05-21 | 江苏通驰自动化***有限公司 | Distribution transformer automatic gauging device |
-
2007
- 2007-11-02 CN CNB2007101346219A patent/CN100527181C/en active Active
-
2008
- 2008-10-20 WO PCT/CN2008/001765 patent/WO2009065294A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934166A (en) * | 1982-08-20 | 1984-02-24 | Mitsubishi Electric Corp | Measuring device of transformer loss |
| CN2253041Y (en) * | 1996-03-18 | 1997-04-23 | 李卡 | High valtage metering power transformer |
| 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 |
| CN1866033A (en) * | 2005-05-20 | 2006-11-22 | 湖南泰通电力科技有限公司 | Real-time monitoring system for preventing electricity theft for power network |
| CN101183485A (en) * | 2007-11-02 | 2008-05-21 | 江苏通驰自动化***有限公司 | Distribution transformer automatic gauging device |
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| CN100527181C (en) | 2009-08-12 |
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