CN103474973A - Intelligent circuit breaker - Google Patents
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Abstract
本发明公开了一种智能断路器，包括断路器开关本体，所述断路器开关本体与智能控制模块相连；所述断路器开关本体与电流互感器的输入端耦合相连，且所述电流互感器的输出端与智能控制模块的电流检测端相连；所述断路器开关本体与第一电压传感器的输入端相连，且所述第一电压传感器的输出端与智能控制模块的电压检测端相连；所述断路器开关本体与第二电压传感器的输入端相连，且所述第二电压传感器的输出端与智能控制模块的电压检测端相连。本发明提供一种智能断路器，其连线结构简单，安装方便，不仅实时监测两条进线电压，而且失压自动切换，切换时间短，提高供电质量的同时降低了成本。
The invention discloses an intelligent circuit breaker, which comprises a circuit breaker switch body, the circuit breaker switch body is connected with an intelligent control module; The output terminal of the intelligent control module is connected to the current detection terminal; the circuit breaker switch body is connected to the input terminal of the first voltage sensor, and the output terminal of the first voltage sensor is connected to the voltage detection terminal of the intelligent control module; The circuit breaker switch body is connected to the input end of the second voltage sensor, and the output end of the second voltage sensor is connected to the voltage detection end of the intelligent control module. The invention provides an intelligent circuit breaker, which has a simple wiring structure and is convenient for installation. It not only monitors the voltages of two incoming lines in real time, but also automatically switches when there is no voltage. The switching time is short, and the cost is reduced while improving the quality of power supply.
Description
the
技术领域 technical field
本发明涉及高压电器设备，尤其涉及一种配置有电阻式电压传感器的户外智能断路器。 The invention relates to high-voltage electrical equipment, in particular to an outdoor intelligent circuit breaker equipped with a resistive voltage sensor.
the
背景技术 Background technique
目前，在电力系统的高压输配电线路（例如10kV架空线路或电缆与架空线路的混合线路）上，为了实现线路的失压保护、过电压保护、过电流保护、分段备投、联络备投、小电流接地保护、自动重合闸等智能化功能，主要通过将断路器或重合器与电流互感器、电压互感器（或传感器）器（如：三相五柱式电压互感器、三个单相电磁式电压互感器、三个电阻（容）式电压传感器、六个电阻（容）式电压传感器等）组合的方式来实现，且其中大部分的方式线路连接复杂，造价高，安装不便。 At present, on the high-voltage transmission and distribution lines of the power system (such as 10kV overhead lines or hybrid lines of cables and overhead lines), in order to realize line loss protection, overvoltage protection, overcurrent protection, segmental backup, and contact backup Switching, small current grounding protection, automatic reclosing and other intelligent functions, mainly through the circuit breaker or recloser and current transformer, voltage transformer (or sensor) device (such as: three-phase five-column voltage transformer, three single-phase electromagnetic voltage transformer, three resistance (capacitance) voltage sensors, six resistance (capacitance) voltage sensors, etc.), and most of them have complex circuit connections, high cost, and inconvenient installation .
the
发明内容 Contents of the invention
为了解决上述问题，本发明的目的在于提供了一种智能断路器，其连线结构简单，安装方便，不仅实时监测两条进线电压，而且失压自动切换，切换时间短，提高供电质量的同时降低了成本。 In order to solve the above problems, the purpose of the present invention is to provide an intelligent circuit breaker, which has a simple wiring structure and is easy to install. It not only monitors the voltages of the two incoming lines in real time, but also switches automatically when there is no voltage. The switching time is short and the quality of power supply is improved. At the same time, the cost is reduced.
本发明为达到上述的目的，本发明采用如下技术方案： The present invention is to achieve above-mentioned purpose, the present invention adopts following technical scheme:
一种智能断路器，包括断路器开关本体，所述断路器开关本体与智能控制模块相连；所述断路器开关本体与电流互感器的输入端耦合相连，且所述电流互感器的输出端与智能控制模块的电流检测端相连；所述断路器开关本体与第一电压传感器的输入端相连，且所述第一电压传感器的输出端与智能控制模块的电压检测端相连；所述断路器开关本体与第二电压传感器的输入端相连，且所述第二电压传感器的输出端与智能控制模块的电压检测端相连。 An intelligent circuit breaker, comprising a circuit breaker switch body, the circuit breaker switch body is connected to an intelligent control module; the circuit breaker switch body is coupled to the input end of a current transformer, and the output end of the current transformer The current detection terminal of the intelligent control module is connected; the circuit breaker switch body is connected with the input terminal of the first voltage sensor, and the output terminal of the first voltage sensor is connected with the voltage detection terminal of the intelligent control module; the circuit breaker switch The main body is connected with the input terminal of the second voltage sensor, and the output terminal of the second voltage sensor is connected with the voltage detection terminal of the intelligent control module.
所述断路器开关本体的进线接线端子与第一电压传感器的输入端相连，所述断路器开关本体的出线接线端子与第二电压传感器的输入端相连。 The incoming wiring terminal of the circuit breaker switch body is connected to the input terminal of the first voltage sensor, and the outgoing wiring terminal of the circuit breaker switch body is connected to the input terminal of the second voltage sensor.
所述断路器开关本体的进线接线端子分别与3个第一电压传感器的的输入端相连，所述断路器开关本体的出线接线端子分别与3个第二电压传感器的输入端相连。 The incoming wiring terminals of the circuit breaker switch body are respectively connected to the input terminals of the three first voltage sensors, and the outgoing wiring terminals of the circuit breaker switch body are respectively connected to the input terminals of the three second voltage sensors.
所述电流互感器通过二次电流输出电缆与智能控制模块的电流检测端相连。 The current transformer is connected to the current detection terminal of the intelligent control module through the secondary current output cable.
所述第一电压传感器和第二电压传感器的输出端还分别通过二次电压输出电缆与智能控制模块的电压检测端相连。 The output terminals of the first voltage sensor and the second voltage sensor are respectively connected to the voltage detection terminal of the intelligent control module through secondary voltage output cables.
所述断路器开关本体为永磁机构型的断路器开关本体。 The circuit breaker switch body is a permanent magnet mechanism type circuit breaker switch body.
所述第一电压传感器为电阻式第一电压传感器，所述第二电压传感器为电阻式的第二电压传感器。 The first voltage sensor is a resistive first voltage sensor, and the second voltage sensor is a resistive second voltage sensor.
本发明的有益效果为：本发明提供了一种智能断路器，在断路器开关本体的进线侧和出线侧分别设置有电阻式电压传感器，将进线侧和出线侧的高电压分别转换为可直接用于智能控制模块的低电压，智能控制模块对电流和电压信号进行检测分析判断，并依据检测结果对断路器开关本体进行控制，其连线结构简单，安装方便，造价低；且克服了传统的手动或半手动的控制方式，实时监测两条进线电压，失压自动切换，转换时间短，可提高供电质量，减小对用户的影响。 The beneficial effects of the present invention are: the present invention provides an intelligent circuit breaker. Resistive voltage sensors are respectively arranged on the incoming line side and the outgoing line side of the circuit breaker switch body, and the high voltages on the incoming line side and the outgoing line side are respectively converted into It can be directly used for the low voltage of the intelligent control module. The intelligent control module detects, analyzes and judges the current and voltage signals, and controls the switch body of the circuit breaker according to the detection results. The connection structure is simple, the installation is convenient, and the cost is low; Instead of the traditional manual or semi-manual control method, the voltage of the two incoming lines is monitored in real time, and the voltage is automatically switched in case of voltage loss. The switching time is short, which can improve the quality of power supply and reduce the impact on users.
the
附图说明 Description of drawings
图1为本发明的连线结构示意图； Fig. 1 is a schematic diagram of the wiring structure of the present invention;
图2为本发明的安装结构示意图。 Fig. 2 is a schematic diagram of the installation structure of the present invention.
the
具体实施方式 Detailed ways
实施例1 Example 1
如图1、图2所示，本实施例提供的是一种智能断路器，包括永磁机构型的断路器开关本体1，所述永磁机构型的断路器开关本体1与智能控制模块2相连；所述永磁机构型的断路器开关本体1与电流互感器5的输入端耦合相连，且所述电流互感器5的输出端与智能控制模块2的电流检测端相连。所述永磁机构型的断路器开关本体1的进线接线端子分别与3个电阻式第一电压传感器3的输入端相连，所述永磁机构型的断路器开关本体1的出线接线端子分别与3个电阻式的第二电压传感器4的输入端相连。所述永磁机构型的断路器开关本体1的进线接线端子与电阻式第一电压传感器3的输入端相连，且所述电阻式第一电压传感器3的输出端与智能控制模块2的电压检测端相连；所述永磁机构型的断路器开关本体1的出线接线端子与电阻式的第二电压传感器4的输入端相连，且所述电阻式的第二电压传感器4的输出端与智能控制模块2的电压检测端相连。所述电流互感器5通过二次电流输出电缆21与智能控制模块2的电流检测端相连。所述电阻式第一电压传感器3和电阻式的第二电压传感器4的输出端还分别通过二次电压输出电缆22与智能控制模块2的电压检测端相连。 As shown in Figure 1 and Figure 2, what this embodiment provides is an intelligent circuit breaker, including a circuit breaker switch body 1 in the form of a permanent magnet mechanism, the circuit breaker switch body 1 in the form of a permanent magnet mechanism and an intelligent control module 2 connected; the permanent magnet mechanism type circuit breaker switch body 1 is coupled and connected to the input end of the current transformer 5 , and the output end of the current transformer 5 is connected to the current detection end of the intelligent control module 2 . The incoming wire terminals of the permanent magnet mechanism type circuit breaker switch body 1 are respectively connected to the input ends of three resistive first voltage sensors 3, and the outgoing wire terminals of the permanent magnet mechanism type circuit breaker switch body 1 are respectively It is connected to the input terminals of three resistive second voltage sensors 4 . The incoming terminal of the circuit breaker switch body 1 of the permanent magnet mechanism type is connected to the input end of the first resistive voltage sensor 3, and the output end of the first resistive voltage sensor 3 is connected to the voltage of the intelligent control module 2. The detection terminal is connected; the outlet connection terminal of the circuit breaker switch body 1 of the permanent magnet mechanism type is connected with the input end of the resistive second voltage sensor 4, and the output end of the resistive second voltage sensor 4 is connected with the intelligent The voltage detection terminals of the control module 2 are connected. The current transformer 5 is connected to the current detection terminal of the intelligent control module 2 through a secondary current output cable 21 . The output terminals of the resistive first voltage sensor 3 and the resistive second voltage sensor 4 are also respectively connected to the voltage detection terminal of the intelligent control module 2 through the secondary voltage output cable 22 .
永磁机构型的断路器开关本体1，有利于缩短重合闸之间的时间间隔，及时排除线路的瞬时故障。 The permanent magnet mechanism type circuit breaker switch body 1 is beneficial to shorten the time interval between reclosing and eliminate the instantaneous fault of the line in time.
智能控制模块2与永磁机构型的断路器开关本体1连接并对其进行控制。智能控制模块2可以是各种根据电压、电流检测结果永磁机构型的断路器开关本体1进行控制的智能控制模块。作为一个非限制性的例子，本实施例中智能控制模块2所采用的型号是PZK-SX-03型。 The intelligent control module 2 is connected with the circuit breaker switch body 1 in the form of a permanent magnet mechanism and controls it. The intelligent control module 2 can be various intelligent control modules that control the circuit breaker switch body 1 of the permanent magnet mechanism type according to the voltage and current detection results. As a non-limiting example, the model of the intelligent control module 2 in this embodiment is PZK-SX-03.
电流互感器5与永磁机构型的断路器开关本体1耦合，其输出端与智能控制模块2的电流检测端连接。电流互感器5产生的电流信号通过二次电流输出电缆21传输至智能控制模块2的电流检测端。 The current transformer 5 is coupled to the circuit breaker switch body 1 in the form of a permanent magnet mechanism, and its output terminal is connected to the current detection terminal of the intelligent control module 2 . The current signal generated by the current transformer 5 is transmitted to the current detection terminal of the intelligent control module 2 through the secondary current output cable 21 .
电阻式第一电压传感器3输入端（即为高压端）与永磁机构型的断路器开关本体1的进线接线端子相连，其输出端（即为低压端）与智能控制模块2的电压检测端连接。电阻式第一电压传感器3对进线侧的高压进行电阻分压，其产生的低电压信号和二次电压输出电缆22传输至智能控制模块2。 The input end (that is, the high voltage end) of the resistive first voltage sensor 3 is connected to the incoming line terminal of the circuit breaker switch body 1 of the permanent magnet mechanism type, and its output end (that is, the low voltage end) is connected to the voltage detection terminal of the intelligent control module 2 end connection. The resistive first voltage sensor 3 resistively divides the high voltage on the incoming line side, and the low voltage signal generated by it and the secondary voltage output cable 22 are transmitted to the intelligent control module 2 .
电阻式的第二电压传感器4输入端（即为高压端）与永磁机构型的断路器开关本体1的出线接线端子相连，其输出端（即为低压端）与智能控制模块2的电压检测端连接。电阻式的第二电压传感器4对出线侧的高压进行电阻分压，其产生的低电压信号和二次电压输出电缆22传输至智能控制模块2。 The input end (that is, the high voltage end) of the resistive second voltage sensor 4 is connected to the outlet terminal of the permanent magnet mechanism type circuit breaker switch body 1, and its output end (that is, the low voltage end) is connected to the voltage detection of the intelligent control module 2 end connection. The resistive second voltage sensor 4 divides the high voltage on the outlet side by resistance, and the low voltage signal generated by it and the secondary voltage output cable 22 are transmitted to the intelligent control module 2 .
其中，可以根据智能控制模块2的输入电压的参数要求，选择电阻式第一电压传感器3和电阻式的第二电压传感器4，使其输出的电压信号能够直接输入至智能控制模块2。 Among them, the resistive first voltage sensor 3 and the resistive second voltage sensor 4 can be selected according to the parameter requirements of the input voltage of the intelligent control module 2 , so that the output voltage signal can be directly input to the intelligent control module 2 .
智能控制模块2通过对接收到的电流与电压信号的分析判断，对永磁机构型的断路器开关本体1进行控制，可以实现失压保护、过电压保护、过电流保护、分段备投、联络备投、小电流接地保护、自动重合闸（例如额定操作顺序：分-0.3s-合分-2s-合分-2s-合分-闭锁）等功能。 The intelligent control module 2 controls the circuit breaker switch body 1 of the permanent magnet mechanism type by analyzing and judging the received current and voltage signals, and can realize voltage loss protection, overvoltage protection, overcurrent protection, segmental backup switching, Contact backup, small current grounding protection, automatic reclosing (for example, rated operation sequence: open-0.3s-closed-2s-closed-2s-closed-lock) and other functions.
本实施例中的智能断路器适用于中高压输配电线路的线路保护，永磁机构型的断路器开关本体1为三相联动，电阻式第一电压传感器3、电阻式的第二电压传感器4的数量均为3个。永磁机构型的断路器开关本体1的进出线接线端子分别连接输配电线路的电源侧与负荷侧，电阻式第一电压传感器3和电阻式的第二电压传感器4分别输出与永磁机构型的断路器开关本体1的进出线电压有较高线性度的低电压信号。 The intelligent circuit breaker in this embodiment is suitable for line protection of medium and high voltage transmission and distribution lines. The circuit breaker switch body 1 of the permanent magnet mechanism is a three-phase linkage, and the first resistive voltage sensor 3 and the second resistive voltage sensor The number of 4 is 3. The incoming and outgoing wiring terminals of the permanent magnet mechanism type circuit breaker switch body 1 are respectively connected to the power supply side and the load side of the power transmission and distribution line, and the resistive first voltage sensor 3 and the resistive second voltage sensor 4 respectively output and connect with the permanent magnet mechanism. The incoming and outgoing line voltage of the circuit breaker switch body 1 has a low-voltage signal with high linearity.
本实施例中电阻式第一电压传感器3和电阻式的第二电压传感器4都是电阻式电压传感器，但是在其他实际应用中，也可以仅二者中的一个采用电阻式电压传感器。 In this embodiment, both the resistive first voltage sensor 3 and the resistive second voltage sensor 4 are resistive voltage sensors, but in other practical applications, only one of them may be a resistive voltage sensor.
本实施例所述的一种智能断路器，在断路器开关本体的进线侧和出线侧分别设置有电阻式电压传感器，将进线侧和出线侧的高电压分别转换为可直接用于智能控制模块的低电压，智能控制模块对电流和电压信号进行检测分析判断，并依据检测结果对断路器开关本体进行控制，其连线结构简单，安装方便，造价低；且克服了传统的手动或半手动的控制方式，实时监测两条进线电压，失压自动切换，转换时间短，可提高供电质量，减小对用户的影响。 An intelligent circuit breaker described in this embodiment is provided with resistive voltage sensors on the incoming line side and the outgoing line side of the circuit breaker switch body, respectively converting the high voltages on the incoming line side and the outgoing line side into The low voltage of the control module, the intelligent control module detects, analyzes and judges the current and voltage signals, and controls the circuit breaker switch body according to the detection results. Its connection structure is simple, easy to install, and low in cost; and it overcomes the traditional manual or Semi-manual control mode, real-time monitoring of the two incoming line voltages, automatic switching in case of voltage loss, short switching time, which can improve the quality of power supply and reduce the impact on users.
Claims (7)
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| CN106405393A (en) * | 2016-05-24 | 2017-02-15 | 国家电网公司 | Apparatus and method of determining faults of low voltage breaker incoming line terminal |
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Application publication date: 20131225 |