CN202383254U - Breaker trip-out pulse monitoring system - Google Patents

Abstract

Translated fromChinese

本实用新型公开一种断路器跳闸脉冲监测系统，包括：跳闸脉冲监测器和跳闸信号阅读器，跳闸信号阅读器从跳闸脉冲监测器中读取监测到的跳闸发生时刻和跳闸脉冲宽度并转换为GPS授时时间进行显示，对于无保护动作信号的断路器偷跳事件,可以快速甄别本次断路器跳闸是由二次回路故障所引起，还是由断路器机构本身原因所引起，从而确定跳闸原因，使得采取相应的对策而尽快恢复运行，该监测器具有外形小巧、功耗低、免维修的特点，适应不停电安装的特点，合理布置监测点，可以快速有效地缩小故障查找范围，通过无线通信的方式利用跳闸信号阅读器从跳闸脉冲监测器中读取跳闸相关数据以便于进行分析比对，以快速排除故障，保障系统安全运行。

The utility model discloses a circuit breaker tripping pulse monitoring system, comprising: a tripping pulse monitor and a tripping signal reader, and the tripping signal reader reads the monitored tripping occurrence time and tripping pulse width from the tripping pulse monitor and converts them intoGPStiming is displayed, and for a circuit breaker trip event without a protection action signal,it can quickly identify whether the circuit breaker trip is caused by a secondary circuit fault or by the circuit breaker mechanism itself, so as to determine the cause of the trip. To take corresponding countermeasures and resume operation as soon as possible. The monitor has the characteristics of small size, low power consumption, and maintenance-free. The method uses the trip signal reader to read the trip related data from the trip pulse monitor for analysis and comparison, so as to quickly troubleshoot and ensure the safe operation of the system.

Description

Translated fromChinese

断路器跳闸脉冲监测系统Circuit breaker trip pulse monitoring system

技术领域technical field

本实用新型涉及一种断路器跳闸脉冲信号监测系统。The utility model relates to a circuit breaker trip pulse signal monitoring system.

背景技术Background technique

电力系统中高压断路器偷跳时有发生，给系统安全稳定运行带来了一定的危害。一般造成断路器偷跳的原因有两方面，一是断路器机构本身的机械故障引起的跳闸，二是二次回路故障引起的跳闸。由于在可能导致断路器跳闸的各个电气回路没有对应的具有记录功能的跳闸脉冲监测设备，往往使得断路器发生偷跳后无法可靠区分是机构原因造成的偷跳，还是二次回路故障造成的偷跳，要费时费力地区甄别偷跳的原因，排除故障效率低。In the power system, the high-voltage circuit breaker sneaks out from time to time, which brings certain harm to the safe and stable operation of the system. Generally, there are two reasons for the sneak trip of the circuit breaker. One is the trip caused by the mechanical failure of the circuit breaker mechanism itself, and the other is the trip caused by the secondary circuit failure. Since there is no corresponding trip pulse monitoring device with recording function for each electrical circuit that may cause the circuit breaker to trip, it is often impossible to reliably distinguish whether the sneak trip is caused by the mechanism or the secondary circuit fault after the circuit breaker trips. Jumping, it is time-consuming and laborious to identify the reason for stealing jumps, and the efficiency of troubleshooting is low.

实用新型内容Utility model content

本实用新型的是提供一种有助于快速排除跳闸故障的断路器跳闸脉冲监测系统。The utility model provides a circuit breaker tripping pulse monitoring system which helps to quickly eliminate tripping faults.

为解决上述技术问题，本实用新型采用如下技术方案：In order to solve the above technical problems, the utility model adopts the following technical solutions:

一种断路器跳闸脉冲监测系统，安装于二次跳闸回路上，其特征在于，包括用于监测断路器二次跳闸回路中的跳闸信号并记录及保存跳闸发生的相关数据的跳闸脉冲监测器、通过无线通信方式从所述的跳闸脉冲监测器中读取所述的相关数据并转换后进行显示的跳闸信号阅读器，A circuit breaker trip pulse monitoring system, installed on the secondary trip circuit, is characterized in that it includes a trip pulse monitor for monitoring the trip signal in the circuit breaker secondary trip circuit and recording and saving relevant data of tripping, A trip signal reader that reads the relevant data from the trip pulse monitor through wireless communication and converts it for display,

其中，所述的跳闸脉冲监测器包括电流互感器，所述的跳闸脉冲监测器通过该电流互感器监测二次跳闸回路中电流信号；所述的跳闸信号阅读器内部具有GPS授时模块，通过该GPS授时模块将读取的所述的相关数据转换为GPS授时时间并显示，跳闸发生的所述的相关数据包括跳闸发生时刻和跳闸脉冲宽度。Wherein, the trip pulse monitor includes a current transformer, and the trip pulse monitor monitors the current signal in the secondary trip circuit through the current transformer; the trip signal reader has a GPS timing module inside, through which The GPS timing module converts the read related data into GPS timing time and displays that the related data of tripping includes tripping time and tripping pulse width.

优选地，所述的跳闸脉冲监测器包括第一微控制器、接入该第一微控制器第一实时时钟芯片及用于实现无线通信的第一红外收发模块，所述的电流互感器监测到的电流信号经过低通滤波及全波整流放大电路处理后由一个三极管将其转化为TTL电平信号而送至所述的第一微控制器的外部中断接口，所述的第一微控制器记录并保存跳闸信号引起的中断响应的时间和二次跳闸回路由于通电与断电脉冲所引起的两次中断响应的时间间隔。Preferably, the tripping pulse monitor includes a first microcontroller, a first real-time clock chip connected to the first microcontroller and a first infrared transceiver module for wireless communication, and the current transformer monitors The received current signal is converted into a TTL level signal by a triode after being processed by a low-pass filter and a full-wave rectification amplifier circuit, and then sent to the external interrupt interface of the first microcontroller, and the first microcontroller The device records and saves the interrupt response time caused by the trip signal and the time interval between the two interrupt responses caused by the power-on and power-off pulses of the secondary trip circuit.

优选地，所述的电流互感器采用开口式磁感应探头以满足不停电安装。Preferably, the current transformer adopts an open-type magnetic induction probe to meet the requirements of uninterrupted installation.

优选地，所述的跳闸脉冲监测器包括按键和指示灯。Preferably, the tripping pulse monitor includes buttons and indicator lights.

优选地，所述的跳闸信号阅读器包括第二微控制器、接入该第二微控制器的第二实时时钟芯片及与所述的第一红外收发模块相匹配的第二红外收发模块、存储器及LCD显示模块，所述的跳闸信号阅读器通过第一、第二红外收发模块读取所述的跳闸脉冲监测器中保存的跳闸相关数据后转换为GPS授时时间并通过所述的LCD显示模块进行显示。Preferably, the trip signal reader includes a second microcontroller, a second real-time clock chip connected to the second microcontroller, and a second infrared transceiver module matched with the first infrared transceiver module, memory and LCD display module, the trip signal reader reads the trip related data stored in the trip pulse monitor through the first and second infrared transceiver modules and converts it into GPS timing and displays it through the LCD module to display.

优选地，所述的存储器选用EEPROM。Preferably, the memory is EEPROM.

优选地，所述的跳闸信号阅读器包括跳闸试验信号发生模块、按键及指示灯。Preferably, the trip signal reader includes a trip test signal generating module, buttons and indicator lights.

本实用新型现对于现有技术的有益效果在于：该监测器具有外形小巧、功耗低、免维修的特点，适应不停电安装的特点，合理布置监测点，可以快速有效地缩小故障查找范围，通过无线通信的方式利用跳闸信号阅读器从跳闸脉冲监测器中读取跳闸相关数据以便于进行分析比对，以快速排除故障，保障系统安全运行。The beneficial effect of the utility model on the prior art lies in that the monitor has the characteristics of small size, low power consumption, and maintenance-free, adapts to the characteristics of non-stop installation, reasonably arranges monitoring points, and can quickly and effectively narrow the scope of fault finding. Through wireless communication, the trip signal reader is used to read the trip related data from the trip pulse monitor for analysis and comparison, so as to quickly troubleshoot and ensure the safe operation of the system.

附图说明Description of drawings

附图1为本实用新型的断路器跳闸脉冲监测系统中跳闸脉冲监测器的原理框图；Accompanyingdrawing 1 is the functional block diagram of tripping pulse monitor in circuit breaker tripping pulse monitoring system of the present utility model;

附图2为本实用新型的断路器跳闸脉冲监测系统中跳闸信号阅读器的原理框图；Accompanyingdrawing 2 is the functional block diagram of the trip signal reader in the circuit breaker trip pulse monitoring system of the present utility model;

附图3为跳闸脉冲监测器中实时时钟芯片与单片机的硬件连接示意图；Accompanyingdrawing 3 is the hardware connection schematic diagram of real-time clock chip and single-chip microcomputer in the trip pulse monitor;

附图4为跳闸脉冲监测器中红外收发模块与单片机的硬件连接示意图；Accompanying drawing 4 is the hardware connection schematic diagram of infrared transceiver module and single-chip microcomputer in the tripping pulse monitor;

附图5为跳闸脉冲监测器中跳闸脉冲模块与单片机的硬件连接示意图；Accompanyingdrawing 5 is the hardware connection schematic diagram of tripping pulse module and single-chip microcomputer in the tripping pulse monitor;

附图6为跳闸信号阅读器中GPS模块与单片机的硬件连接示意图；Accompanyingdrawing 6 is the hardware connection schematic diagram of GPS module and single-chip microcomputer in the tripping signal reader;

附图7为跳闸信号阅读器中EEPROM与单片机的硬件连接示意图；Accompanying drawing 7 is the hardware connection schematic diagram of EEPROM and single-chip microcomputer in tripping signal reader;

附图8为跳闸信号阅读器中MOSFET继电器与单片机的电路硬件连接示意图；Accompanying drawing 8 is the schematic diagram of circuit hardware connection of MOSFET relay and single-chip microcomputer in the trip signal reader;

附图9为跳闸脉冲监测器内部主程序流程图；Accompanying drawing 9 is the internal main program flowchart of tripping pulse monitor;

附图10为跳闸脉冲监测器内部跳闸监测中断程序流程图；Accompanying drawing 10 is a flow chart of the internal trip monitoring interruption program of the trip pulse monitor;

附图11为跳闸脉冲监测器按键中断程度流程图；Accompanying drawing 11 is the flow chart of tripping pulse monitor key interruption degree;

附图12为跳闸信号阅读器内部主程序流程图；Accompanying drawing 12 is the internal main program flowchart of tripping signal reader;

附图13为跳闸信号阅读器按键中断程序流程图。Accompanying drawing 13 is the flow chart of tripping signal reader button interruption program.

具体实施方式Detailed ways

下面结合附图所示的实施例对本实用新型的技术方案作以下详细描述：The technical scheme of the utility model is described in detail below in conjunction with the embodiment shown in the accompanying drawings:

一种断路器跳闸脉冲监测系统，包括跳闸脉冲监测器和跳闸信号阅读器两部分，跳闸脉冲监测器包括电流互感器，通过该电流互感器监测断路器二次跳闸回路中的跳闸信号，该跳闸脉冲监测器记录跳闸发生的相关数据并进行保存，其中相关数据包括跳闸发生时刻和跳闸脉冲宽度，跳闸信号阅读器内部具有GPS授时模块，该跳闸信号阅读器通过无线通信方式从跳闸脉冲监测器读取相关数据并将其转换为GPS授时时间进行显示，对于无保护动作信号的断路器偷跳事件，可以快速甄别本次断路器跳闸是由二次回路故障所引起，还是由断路器机构本身原因所引起，如果是二次回路故障所引起通过合理地布置监测点，可以有效地缩小查找范围，快速接近故障点，有效地提高了排除故障的效率，为电力系统的正常运行提供保障。A circuit breaker trip pulse monitoring system, including two parts, a trip pulse monitor and a trip signal reader. The trip pulse monitor includes a current transformer, and the trip signal in the secondary trip circuit of the circuit breaker is monitored through the current transformer. The pulse monitor records and saves the relevant data of the trip, and the relevant data includes the time of the trip and the pulse width of the trip. The trip signal reader has a GPS timing module inside, and the trip signal reader reads from the trip pulse monitor through wireless communication. Take relevant data and convert it into GPS timing for display. For a circuit breaker trip event without a protection action signal, it can quickly identify whether the circuit breaker trip is caused by a secondary circuit fault or the circuit breaker itself. If it is caused by a secondary circuit fault, the reasonable arrangement of monitoring points can effectively narrow the search range and quickly approach the fault point, effectively improving the efficiency of troubleshooting and providing guarantee for the normal operation of the power system.

如附图1所示的原理框图，跳闸脉冲监测器包括第一微控制器、接入该第一微控制器第一实时时钟芯片及用于实现无线通信的第一红外收发模块，电流互感器监测到的电流信号经过低通滤波及全波整流放大电路处理后由一个三极管将其转化为TTL电平信号而送至第一微控制器的外部中断接口，第一微控制器记录并保存跳闸信号引起的中断响应的时间和二次跳闸回路由于通电与断电脉冲所引起的两次中断响应的时间间隔，电流互感器采用开口式磁感应探头以满足不停电安装，跳闸脉冲监测器包括按键和指示灯；如附图2所示的原理框图，跳闸信号阅读器包括第二微控制器、接入该第二微控制器的第二实时时钟芯片及与第一红外收发模块相匹配的第二红外收发模块、存储器及LCD显示模块，跳闸信号阅读器通过第一、第二红外收发模块读取跳闸脉冲监测器中保存的跳闸相关数据后转换为GPS授时时间并通过LCD显示模块进行显示，存储器选用EEPROM，跳闸信号阅读器包括跳闸试验信号发生模块、按键及指示灯。As shown in the functional block diagram of accompanyingdrawing 1, the tripping pulse monitor includes a first microcontroller, a first real-time clock chip connected to the first microcontroller and a first infrared transceiver module for realizing wireless communication, and a current transformer The monitored current signal is processed by a low-pass filter and a full-wave rectification amplifier circuit, and then converted into a TTL level signal by a triode and sent to the external interrupt interface of the first microcontroller. The first microcontroller records and saves the trip The interrupt response time caused by the signal and the time interval between the two interrupt responses caused by the power-on and power-off pulses of the secondary tripping circuit. The current transformer adopts an open-type magnetic induction probe to meet the non-stop installation. Indicator light; as shown in the functional block diagram of accompanyingdrawing 2, the trip signal reader includes a second microcontroller, a second real-time clock chip connected to the second microcontroller and a second real-time clock chip matched with the first infrared transceiver module. Infrared transceiver module, memory and LCD display module, the trip signal reader reads the trip-related data saved in the trip pulse monitor through the first and second infrared transceiver modules and converts it into GPS timing and displays it through the LCD display module, memory EEPROM is selected, and the trip signal reader includes a trip test signal generation module, buttons and indicator lights.

硬件部分具体实施方式：The specific implementation of the hardware part:

一）、跳闸脉冲监测器:1) Trip pulse monitor:

1)、第一微控制器选用TI公司超低功耗MSP430F2132单片机,带8kB Program、512kB SRAM和一组IrDA接口和一组I2C接口，工作电压1.8-3.6V，低功耗模式可达0.1uA，适合电池供电系统。1) The first microcontroller uses TI's ultra-low power consumption MSP430F2132 single-chip microcomputer, with 8kB Program, 512kB SRAM, a set of IrDA interface and a set of I2C interface, the working voltage is 1.8-3.6V, and the low power consumption mode can reach 0.1uA , suitable for battery-powered systems.

、第一实时时钟芯片采用ST公司的M41T62高精度低功耗的实时时钟芯片，时间精确到10ms，提供给系统一个精确日历时间，低功耗模式电流为0.35uA。串行接口支持I2C总线，与第一微控制器硬件连接如附图3所示。. The first real-time clock chip adopts ST's M41T62 high-precision and low-power real-time clock chip. The time is accurate to 10ms, providing a precise calendar time for the system, and the current in low-power mode is 0.35uA. The serial interface supports the I2C bus, and is connected with the hardware of the first microcontroller as shown in FIG. 3 .

）、第一红外收发模块采用SHARP公司的GP2W0110YPS红外收发模块。该模块体积小，低功耗，关断状态电流不大于0.1uA，符合irDA1.2串行红外传输标准，其最高的红外传输速度可达115.2kbit/s，可以和第一微控制器IrDA接口直接连接，不需要编码/解码芯片，即可实现对数据的发送和接收，硬件连接如附图4所示。), the first infrared transceiver module adopts the GP2W0110YPS infrared transceiver module of SHARP Company. The module is small in size, low in power consumption, and the off-state current is not more than 0.1uA. It meets the irDA1.2 serial infrared transmission standard. Its highest infrared transmission speed can reach 115.2kbit/s, and it can interface with the first microcontroller IrDA Direct connection, without encoding/decoding chip, can realize the sending and receiving of data, the hardware connection is shown in Figure 4.

、按键和指示灯：采用一个独立式按键，两个LED指示灯（红色和绿色）有单片机直接驱动，根据按键按下到松开的时间确定三种不同状态，分别是数据发送状态，数据接收状态和数据擦除状态。, Button and indicator light: use an independent button, two LED indicators (red and green) are directly driven by the single-chip microcomputer, and determine three different states according to the time from pressing the button to releasing the button, which are the data sending state and the data receiving state. status and data erasure status.

、跳闸脉冲感应模块由电流互感器，低功耗运放，滤波电路和三极管组成。低功耗运放MAX4474在无信号的状态下，工作电流小于0.8uA。电流互感器感应跳闸回路通电及断电瞬间的瞬变电流得到通电及断电的脉冲信号后，经过低通滤波、全波整流放大和三极管转换为第一微控制器可认的TTL电平信号，触发第一微控制器中断。第一微控制器监测该中断响应的时间和由跳闸回路通电及断电的脉冲引起的两次第一微控制器中断的间隔时间就可以测量出二次回路上跳闸回路跳闸脉冲发生的时间和脉宽。电路图如附图5所示，其中H1为电流互感器，U1-A和U1-B为MAX4474，D1为二极管，Q1为三极管。, The tripping pulse sensing module is composed of a current transformer, a low-power operational amplifier, a filter circuit and a triode. The low-power op amp MAX4474 has an operating current of less than 0.8uA when there is no signal. The current transformer senses the transient current at the moment of power-on and power-off in the tripping circuit. After the pulse signal of power-on and power-off is obtained, it is converted into a TTL level signal recognized by the first microcontroller through low-pass filtering, full-wave rectification and amplification, and a triode. , triggers the first microcontroller interrupt. The first micro-controller monitors the time of the interrupt response and the interval time between the two first micro-controller interruptions caused by the tripping circuit power-on and power-off pulses to measure the time and pulse of the tripping circuit tripping pulse on the secondary circuit. Width. The circuit diagram is shown in Figure 5, where H1 is a current transformer, U1-A and U1-B are MAX4474, D1 is a diode, and Q1 is a triode.

二）、跳闸信号阅读器：2) Trip signal reader:

1)第二微控制器选用TI公司超低功耗MSP430F248单片机,带48kB Program,4096kB SRAM和一组IrDA接口，两组I2C接口，一组USCI接口，最大48个I/O接口，工作电压1.8-3.6V，低功耗模式可达0.1uA，适合电池供电系统。1) The second microcontroller is MSP430F248 MCU with ultra-low power consumption from TI Company, with 48kB Program, 4096kB SRAM, a set of IrDA interfaces, two sets of I2C interfaces, a set of USCI interfaces, a maximum of 48 I/O interfaces, and a working voltage of 1.8 -3.6V, low power mode up to 0.1uA, suitable for battery-powered systems.

）第一实时时钟采用ST公司的M41T62芯片，第二红外模块采用SHARP公司的GP2W0110YPS红外数据收发模块，硬件连接图等同于附图3和附图4。) The first real-time clock adopts the M41T62 chip of ST Company, and the second infrared module adopts the GP2W0110YPS infrared data transceiver module of SHARP Company, and the hardware connection diagram is equivalent to attacheddrawings 3 and 4.

）GPS授时模块集成了RF射频芯片、基带芯片和核心CPU，并加上相关外围电路而组成的一个集成电路，支持准确1pps输出信号接轨GPS校准，其脉冲前沿与UTC的同步误差不超过1μs，实现对系统的精确对时，达到电力系统要求的精度。支持串口9600波特率通信，与第二微控制器的硬件连接如附图6所示。) GPS timing module integrates RF radio frequency chip, baseband chip and core CPU, plus an integrated circuit composed of related peripheral circuits, supports accurate 1pps output signal to connect with GPS calibration, and the synchronization error between the pulse front and UTC does not exceed 1μs, Realize the precise timing of the system and achieve the accuracy required by the power system. It supports serial port 9600 baud rate communication, and the hardware connection with the second microcontroller is shown in Figure 6.

）LCD模块采用规格240*160，和第二微控制器并口连接，进行接收数据显示，或者系统其它显示。) The LCD module adopts the specification of 240*160, and is connected with the parallel port of the second micro-controller to display the received data or other displays of the system.

）EEPROM (Electrically Erasable Programmable)，电可擦可编程只读存储器--一种掉电后数据不丢失的存储芯片，对红外接收到的数据进行保存，以便于以后的查看。EEPROM采用常用的AT24C08芯片，可以存储约80组跳闸监测器的数据，串行接口支持I2C总线，与第二微控制器硬件连接如附图7所示。) EEPROM (Electrically Erasable Programmable), Electrically Erasable Programmable Read-Only Memory - a memory chip that does not lose data after power failure, and saves the data received by infrared for later viewing. The EEPROM adopts the commonly used AT24C08 chip, which can store the data of about 80 groups of trip monitors. The serial interface supports the I2C bus, and the hardware connection with the second microcontroller is shown in Figure 7.

）按键为独立式按键，使用按键完成对系统的时间设置，数据收发，数据存储或擦除，自检等等。指示灯采用两个LED指示灯（红色和绿色），用微控制器直接驱动，对系统的不同状态进行指示。) button is an independent button, use the button to complete the time setting of the system, data sending and receiving, data storage or erasing, self-test and so on. The indicator light adopts two LED indicator lights (red and green), which are directly driven by a microcontroller to indicate different states of the system.

）跳闸试验信号电路，如附图8所示，由大容量电池，电阻，MOSFET继电器和第二微控制器组成。MOSFET继电器选用欧姆龙G3VM-21HR型号，可实现最大2.5A开闭电流。第二微控制器通过控制MOSFET继电器模拟跳闸时的脉冲电流，用于检验跳闸回路脉冲监测器能否监测到跳闸信号。同时第二微控制器记录继电器闭合时的系统准确时间，然后再接收跳闸回路脉冲监测器的数据，两个时间进行对比，就可检验出跳闸回路脉冲监测器工作是否正常。) The tripping test signal circuit, as shown in Figure 8, consists of a large-capacity battery, a resistor, a MOSFET relay and a second microcontroller. The MOSFET relay uses the Omron G3VM-21HR model, which can achieve a maximum switching current of 2.5A. The second micro-controller simulates the pulse current when tripping by controlling the MOSFET relay, and is used to check whether the pulse monitor of the trip circuit can monitor the trip signal. At the same time, the second micro-controller records the system accurate time when the relay is closed, and then receives the data of the trip circuit pulse monitor, and compares the two times to check whether the trip circuit pulse monitor works normally.

）硬件抗干扰措施：主要通过低通滤波电路和外加接地屏蔽罩对一些杂波和其他干扰进行滤除，可以达到良好的抗干扰性能。低通滤波电路见附图5中，电流互感器检测到脉冲后通过低通滤波电路,滤除一些高频信号,再全波整流放大。另外，电路加接地屏蔽罩后可以防止其他设备对系统干扰。两种硬件抗干扰措施基本可以达到抗干扰目的，再加软件上设置一些滤波处理。将大大提高系统的抗干扰性能。) Hardware anti-interference measures: Mainly filter out some clutter and other interference through low-pass filter circuit and external ground shielding cover, which can achieve good anti-interference performance. The low-pass filter circuit is shown in Figure 5. After the current transformer detects the pulse, it passes through the low-pass filter circuit to filter out some high-frequency signals, and then full-wave rectifies and amplifies them. In addition, adding a ground shield to the circuit can prevent other devices from interfering with the system. The two hardware anti-jamming measures can basically achieve the purpose of anti-jamming, plus some filtering processing is set on the software. Will greatly improve the anti-jamming performance of the system.

软件部分具体实施方式：The specific implementation of the software part:

(一)、跳闸脉冲监测器：(1), tripping pulse monitor:

跳闸脉冲监测器主要由主程序和两个中断服务程序组成。主程序主要是进行初始化以及外围设备初始化，然后进入低功耗模式，中断服务程序包括跳闸监测中断服务程序和按键中断服务程序。跳闸中断服务程序主要是完成记录跳闸脉冲发生的时间和脉宽。按键中断程序则主要完成对数据的收发、擦除及系统设置。流程图如附图9、附图10及附图11所示。The tripping pulse monitor mainly consists of the main program and two interrupt service routines. The main program is mainly for initialization and peripheral device initialization, and then enters the low power consumption mode. The interrupt service program includes the trip monitoring interrupt service program and the key interrupt service program. The trip interrupt service program is mainly to record the time and pulse width of the trip pulse. The key interrupt program mainly completes the sending and receiving, erasing and system setting of data. The flowchart is shown in accompanying drawing 9, accompanying drawing 10 and accompanying drawing 11.

二)跳闸信号手持阅读器：2) Trip signal handheld reader:

跳闸信号手持阅读器系统程序要由主程序和按键中断程序组成。The system program of the trip signal handheld reader is composed of the main program and the key interrupt program.

（1）、主程序完成对设备的初始化及LCD显示，等待按键中断响应，如附图12所示。(1). The main program completes the initialization of the device and LCD display, and waits for the key interrupt response, as shown in Figure 12.

（2）、按键中断程序，如附图13所示，按确定键进入主菜单，上下键选择要设置的功能，再按确认键进入，左右键选择设置的位，如需退出按返回键。(2) Press the button to interrupt the program, as shown in Figure 13, press the OK key to enter the main menu, press the up and down keys to select the function to be set, and then press the OK key to enter, the left and right keys to select the set bit, and press the return key to exit.

（3）软件抗干扰措施：首先通过检测电流互感器感应跳闸回路通电及断电瞬间的单个脉冲信号宽度，滤除小于0.5ms脉宽的脉冲信号，解决高频干扰；其次通过检测电流互感器感应跳闸回路通电及断电瞬间的两次脉冲信号宽度，判断是否大于20ms，即判断是否为正常的分闸信号；最后再通过设置软件“看门狗”定时监视程序循环运行，若超出已知的循环设定时间进入死循环，则强迫系统复位，使系统恢复正常运行。(3) Software anti-interference measures: firstly, by detecting the width of a single pulse signal at the moment of power-on and power-off of the current transformer induction trip circuit, filter out the pulse signal with a pulse width less than 0.5ms, and solve high-frequency interference; secondly, by detecting the current transformer The width of the two pulse signals at the moment of power-on and power-off of the induction tripping circuit is judged whether it is greater than 20ms, that is, it is judged whether it is a normal opening signal; finally, the software "watchdog" is set to monitor the program regularly, and if it exceeds the known If the loop setting time enters an infinite loop, the system will be forced to reset and the system will return to normal operation.

本实用新型的系统有监测器和阅读器两部分组成，其中，监测器具有外形小巧、功耗低、免维修的特点，适应不停电安装的特点，合理布置监测点，可以快速有效地缩小故障查找范围，通过无线通信的方式利用跳闸信号阅读器从跳闸脉冲监测器中读取跳闸相关数据以便于后续进行分析比对，以快速排除故障，保障系统安全运行。The system of the utility model is composed of a monitor and a reader, wherein the monitor has the characteristics of small size, low power consumption, maintenance-free, adapts to the characteristics of non-power-off installation, reasonably arranges monitoring points, and can quickly and effectively reduce faults To find the scope, use the trip signal reader to read the trip related data from the trip pulse monitor through wireless communication for subsequent analysis and comparison, so as to quickly troubleshoot and ensure the safe operation of the system.

上述实施例只为说明本实用新型的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本实用新型的内容并据以实施，并不能以此限制本实用新型的保护范围。凡根据本实用新型精神所作的等效变化或修饰，都应涵盖在本实用新型的保护范围之内。The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (7)

Translated fromChinese

1.一种断路器跳闸脉冲监测系统，安装于二次跳闸回路上，其特征在于，包括用于监测断路器二次跳闸回路中的跳闸信号并记录及保存跳闸发生的相关数据的跳闸脉冲监测器、通过无线通信方式从所述的跳闸脉冲监测器中读取所述的相关数据并转换后进行显示的跳闸信号阅读器，1. A circuit breaker tripping pulse monitoring system, installed on the secondary tripping circuit, is characterized in that, includes the tripping pulse monitoring for monitoring the tripping signal in the secondary tripping circuit of the circuit breaker and records and saves the relevant data of tripping device, a trip signal reader that reads the relevant data from the trip pulse monitor through wireless communication and displays it after conversion,其中，所述的跳闸脉冲监测器包括电流互感器，所述的跳闸脉冲监测器通过该电流互感器监测二次跳闸回路中的电流信号；所述的跳闸信号阅读器内部具有GPS授时模块，通过该GPS授时模块将读取的所述的相关数据转换为GPS授时时间并显示，跳闸发生的所述的相关数据包括跳闸发生时刻和跳闸脉冲宽度。Wherein, the trip pulse monitor includes a current transformer, and the trip pulse monitor monitors the current signal in the secondary trip circuit through the current transformer; the trip signal reader has a GPS timing module inside, through The GPS timing module converts the read related data into GPS timing time and displays that the related data of tripping includes tripping time and tripping pulse width.2.根据权利要求1所述的断路器跳闸脉冲监测系统，其特征在于：所述的跳闸脉冲监测器包括第一微控制器、接入该第一微控制器第一实时时钟芯片及用于实现无线通信的第一红外收发模块，所述的电流互感器监测到的电流信号经过低通滤波及全波整流放大电路处理后由一个三极管将其转化为TTL电平信号而送至所述的第一微控制器的外部中断接口，所述的第一微控制器记录并保存跳闸信号引起的中断响应的时间和二次跳闸回路由于通电与断电脉冲所引起的两次中断响应的时间间隔。2. circuit breaker tripping pulse monitoring system according to claim 1, is characterized in that: described tripping pulse monitor comprises the first micro-controller, inserts the first real-time clock chip of this first micro-controller and is used for The first infrared transceiver module that realizes wireless communication. The current signal detected by the current transformer is processed by a low-pass filter and a full-wave rectification amplifier circuit, and then converted into a TTL level signal by a triode and sent to the The external interrupt interface of the first microcontroller, the first microcontroller records and saves the interrupt response time caused by the trip signal and the time interval between the two interrupt responses caused by the power-on and power-off pulses of the secondary trip circuit .3.根据权利要求1或2所述的断路器跳闸脉冲监测系统，其特征在于：所述的电流互感器采用开口式磁感应探头以满足不停电安装。3. The circuit breaker tripping pulse monitoring system according to claim 1 or 2, characterized in that: the current transformer adopts an open-type magnetic induction probe to meet the non-stop installation.4.根据权利要求3所述的断路器跳闸脉冲监测系统，其特征在于：所述的跳闸脉冲监测器包括按键和指示灯。4. The circuit breaker tripping pulse monitoring system according to claim 3, characterized in that: said tripping pulse monitor includes buttons and indicator lights.5.根据权利要求2所述的断路器跳闸脉冲监测系统，其特征在于：所述的跳闸信号阅读器包括第二微控制器、接入该第二微控制器的第二实时时钟芯片及与所述的第一红外收发模块相匹配的第二红外收发模块、存储器及LCD显示模块，所述的跳闸信号阅读器通过第一、第二红外收发模块读取所述的跳闸脉冲监测器中保存的跳闸相关数据后转换为GPS授时时间并通过所述的LCD显示模块进行显示。5. circuit breaker tripping pulse monitoring system according to claim 2, is characterized in that: described tripping signal reader comprises the second micro-controller, the second real-time clock chip that inserts this second micro-controller and with The second infrared transceiver module, memory and LCD display module matched by the first infrared transceiver module, the trip signal reader reads the trip pulse monitor stored in the first and second infrared transceiver modules The relevant tripping data are converted into GPS timing and displayed by the LCD display module.6.根据权利要求5所述的断路器跳闸脉冲监测系统，其特征在于：所述的存储器选用EEPROM。6. The circuit breaker tripping pulse monitoring system according to claim 5, characterized in that: EEPROM is selected as the memory.7.根据权利要求5所述的断路器跳闸脉冲监测系统，其特征在于：所述的跳闸信号阅读器包括跳闸试验信号发生模块、按键及指示灯。7. The circuit breaker tripping pulse monitoring system according to claim 5, wherein the tripping signal reader includes a tripping test signal generating module, buttons and indicator lights.

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