CN204575769U - Secondary current loop of transforming plant state on_line monitoring system - Google Patents
Secondary current loop of transforming plant state on_line monitoring system Download PDFInfo
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- CN204575769U CN204575769U CN201520206974.5U CN201520206974U CN204575769U CN 204575769 U CN204575769 U CN 204575769U CN 201520206974 U CN201520206974 U CN 201520206974U CN 204575769 U CN204575769 U CN 204575769U
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Abstract
本实用新型公开了一种变电站二次电流回路状态在线监测系统，包括前置检测终端、调试监测终端和电源模块；所述前置检测终端与调试监测终端相连接，前置检测终端通过无线向调试监测终端传输实时信号；电源模块分别与前置检测终端、调试监测终端相连接，电源模块为前置检测终端、调试监测终端供电；所述前置检测终端包括若干个温度传感器、若干个滤波器、若干个比较器、若干个过热显示报警器和过热声音报警器，每个温度传感器依次连接对应的滤波器、比较器和过热显示报警器，每个比较器的输出端都与过热声音报警器相连接；本实用新型变电站二次电流回路状态在线监测系统具有检测精度高、判断及时可靠、体积小、易安装的前置检测终端。
The utility model discloses an on-line monitoring system for the secondary current loop state of a substation, which includes a pre-detection terminal, a debugging monitoring terminal and a power supply module; The debugging and monitoring terminal transmits real-time signals; the power module is connected to the front detection terminal and the debugging monitoring terminal respectively, and the power supply module supplies power for the front detection terminal and the debugging monitoring terminal; the front detection terminal includes several temperature sensors, several filter Each temperature sensor is connected to the corresponding filter, comparator and overheating display alarm in turn, and the output of each comparator is connected to the overheating sound alarm The utility model substation secondary current loop status online monitoring system has a pre-detection terminal with high detection accuracy, timely and reliable judgment, small size and easy installation.
Description
技术领域 technical field
本实用新型涉及变电站基础设备领域，特别是一种变电站二次电流回路状态在线监测系统。 The utility model relates to the field of substation basic equipment, in particular to an on-line monitoring system for the secondary current loop state of a substation.
背景技术 Background technique
整个电力系统是有一次系统和二次系统构成，只有这两个系统可靠运行，才能保证整个电力系统的安全、可靠的运行；但如今，在变电所的建设和维护中注重一次系统、忽略二次系统的情况。 The entire power system is composed of a primary system and a secondary system. Only when these two systems operate reliably can the safe and reliable operation of the entire power system be guaranteed; The case of the secondary system.
每个变电所都存在大量的二次电流接线回路，该电流回路是整个电流系统进行测量、保护、调度、监控等的基础。但是由于该回路存在大量的接线端子，且回路电流较大，经常出现接线处烧毁、烧断、损坏等故障，从而影响到整个变电所的测量、保护、调度等部分的正常运行，对整个电网的安全、可靠运行带来极大的隐患。同时，当接点损坏时还可能引起电流互感器开路，产生高压放电，甚至击穿电器元件，引起设备事故；造成大范围的断电或是引起火灾。 Each substation has a large number of secondary current wiring loops, which are the basis for the measurement, protection, scheduling, and monitoring of the entire current system. However, because there are a large number of terminals in this circuit, and the circuit current is relatively large, faults such as burning, blowing, and damage of the wiring often occur, which affects the normal operation of the measurement, protection, dispatching and other parts of the entire substation. The safe and reliable operation of the power grid brings great hidden dangers. At the same time, when the contact is damaged, it may also cause the current transformer to open circuit, generate high-voltage discharge, and even break down electrical components, causing equipment accidents; causing large-scale power outages or fires.
由于每年都有因为二次电流回路故障造成保护误动和拒动事故的发生，各供电公司都加强了对二次回路的巡视和检修。但目前，国内外对于变电所二次电流回路的监测主要有以下几种方法：（1）人工巡视的方法：定期或不定期的安排人员对二次电流回路利用目测的方法进行巡视，通过观察二次电流接线端子以及导线外观是否存在烧灼和异味；（2）一次系统停电后对二次系统进行检测和维护；（3）利用手持式温度测试仪对二次电流回路的接线端子温度进行测量，从而判断二次电流回路的状态。上述这些方法对降低二次电流回路的故障都具有一定的意义，但是这些方法都存在工作量大、可靠性低、不能实时防止二次电流回路故障的发生。 Due to the accidents of protection malfunction and refusal to operate due to the failure of the secondary current circuit every year, all power supply companies have strengthened the inspection and maintenance of the secondary circuit. But at present, there are mainly the following methods for monitoring the secondary current circuit of substations at home and abroad: (1) Manual inspection method: regularly or irregularly arrange personnel to inspect the secondary current circuit by visual inspection. Observe whether there is burning and peculiar smell in the secondary current terminal and the appearance of the wire; (2) detect and maintain the secondary system after the primary system is powered off; (3) use a hand-held temperature tester to measure the temperature of the terminal of the secondary current circuit Measure to judge the state of the secondary current loop. The above-mentioned methods have certain significance for reducing the faults of the secondary current loop, but these methods have heavy workload, low reliability, and cannot prevent the occurrence of secondary current loop faults in real time.
实用新型内容 Utility model content
本实用新型的目的在于提供一种可靠性高、实时监测且能够提高工作效率的变电站二次电流回路状态在线监测系统。 The purpose of the utility model is to provide an on-line monitoring system for the secondary current loop state of a substation with high reliability, real-time monitoring and improved work efficiency.
实现本实用新型目的的技术解决方案为： The technical solution to realize the purpose of this utility model is:
本实用新型变电站二次电流回路状态在线监测系统，包括前置检测终端、调试监测终端和电源模块；所述前置检测终端与调试监测终端相连接，前置检测终端通过无线向调试监测终端传输实时信号；电源模块分别与前置检测终端、调试监测终端相连接，电源模块为前置检测终端、调试监测终端供电；所述前置检测终端包括若干个温度传感器、若干个滤波器、若干个比较器、若干个过热显示报警器和过热声音报警器，每个温度传感器依次连接对应的滤波器、比较器和过热显示报警器，每个比较器的输出端都与过热声音报警器相连接，所述调试监测终端包括计算机主机，接收前置检测终端发送的数据。 The utility model substation secondary current loop status online monitoring system includes a pre-detection terminal, a debugging monitoring terminal and a power supply module; Real-time signal; the power supply module is respectively connected with the front detection terminal and the debugging monitoring terminal, and the power supply module supplies power for the front detection terminal and the debugging monitoring terminal; the front detection terminal includes several temperature sensors, several filters, several Comparator, several overheating display alarms and overheating sound alarms, each temperature sensor is connected to the corresponding filter, comparator and overheating display alarm in turn, and the output end of each comparator is connected to the overheating sound alarm, The debugging and monitoring terminal includes a computer host to receive data sent by the pre-detection terminal.
本实用新型与现有技术相比，其显著优点： Compared with the prior art, the utility model has significant advantages:
（1）本实用新型变电站二次电流回路状态在线监测系统具有检测精度高、判断及时可靠、体积小、易安装的前置检测终端。 (1) The utility model substation secondary current loop status online monitoring system has a pre-detection terminal with high detection accuracy, timely and reliable judgment, small size and easy installation.
（2）本实用新型变电站二次电流回路状态在线监测系统可在开关柜中实现可靠无线通讯的变电站二次电流回路状态监测通讯平台。 (2) The utility model substation secondary current loop state online monitoring system can realize a reliable wireless communication substation secondary current loop state monitoring communication platform in the switch cabinet.
下面结合附图对本实用新型作进一步详细描述。 Below in conjunction with accompanying drawing, the utility model is described in further detail.
附图说明 Description of drawings
图1为本实用新型变电站二次电流回路状态在线监测系统中前置检测终端的结构示意图。 Fig. 1 is a structural schematic diagram of the front-end detection terminal in the on-line monitoring system of the secondary current loop state of the utility model substation.
具体实施方式 Detailed ways
如图1所示： As shown in Figure 1:
一种变电站二次电流回路状态在线监测系统，包括前置检测终端、调试监测终端和电源模块；所述前置检测终端与调试监测终端相连接，前置检测终端通过无线向调试监测终端传输实时信号；电源模块分别与前置检测终端、调试监测终端相连接，电源模块为前置检测终端、调试监测终端供电；所述前置检测终端包括若干个温度传感器、若干个滤波器、若干个比较器、若干个过热显示报警器和过热声音报警器，每个温度传感器依次连接对应的滤波器、比较器和过热显示报警器，每个比较器的输出端都与过热声音报警器相连接，所述调试监测终端包括计算机主机，接收前置检测终端发送的数据。 An on-line monitoring system for the state of a secondary current loop in a substation, comprising a pre-detection terminal, a debugging and monitoring terminal, and a power module; the pre-detecting terminal is connected to the debugging and monitoring terminal, and the pre-detecting terminal transmits real-time signal; the power supply module is respectively connected with the front detection terminal and the debugging monitoring terminal, and the power supply module supplies power for the front detection terminal and the debugging monitoring terminal; the front detection terminal includes several temperature sensors, several filters, several comparison sensor, several overheating display alarms and overheating sound alarms, each temperature sensor is connected to the corresponding filter, comparator and overheating display alarm in turn, and the output end of each comparator is connected to the overheating sound alarm, so The debugging and monitoring terminal described above includes a computer host, which receives data sent by the pre-detection terminal.
所述滤波器与比较器之间设置有运算放大器。 An operational amplifier is arranged between the filter and the comparator.
所述运算放大器采用LM324运算放大器。 The operational amplifier adopts LM324 operational amplifier.
所述温度传感器采用DS18B20数字温度传感器。 The temperature sensor adopts DS18B20 digital temperature sensor.
所述过热显示报警器采用LED灯，过热声音报警器采用5～10V的蜂鸣器。 The overheat display alarm adopts LED lights, and the overheat sound alarm adopts a buzzer of 5-10V.
下面通过实施例对本实用新型变电站二次电流回路状态在线监测系统做进一步的说明： The following is a further description of the on-line monitoring system for the secondary current loop state of the utility model substation through the embodiments:
实施例1： Example 1:
一种变电站二次电流回路状态在线监测系统，包括前置检测终端、调试监测终端和电源模块；所述前置检测终端与调试监测终端相连接，前置检测终端通过无线向调试监测终端传输实时信号；电源模块分别与前置检测终端、调试监测终端相连接，电源模块为前置检测终端、调试监测终端供电；所述前置检测终端包括若干个温度传感器、若干个滤波器、若干个运算放大器、若干个比较器、若干个过热显示报警器和过热声音报警器，每个温度传感器依次连接对应的滤波器、运算放大器、比较器和过热显示报警器，每个比较器的输出端都与过热声音报警器相连接，所述调试监测终端包括计算机主机，接收前置检测终端发送的数据。其中，运算放大器采用LM324运算放大器，温度传感器采用DS18B20数字温度传感器，所述过热显示报警器采用LED灯，过热声音报警器采用5～10V的蜂鸣器。 An on-line monitoring system for the state of a secondary current loop in a substation, comprising a pre-detection terminal, a debugging and monitoring terminal, and a power module; the pre-detecting terminal is connected to the debugging and monitoring terminal, and the pre-detecting terminal transmits real-time signal; the power module is connected to the front detection terminal and the debugging monitoring terminal respectively, and the power module supplies power for the front detection terminal and the debugging monitoring terminal; the front detection terminal includes several temperature sensors, several filters, and several calculation Amplifiers, several comparators, several overheating display alarms and overheating sound alarms, each temperature sensor is connected to the corresponding filter, operational amplifier, comparator and overheating display alarm in turn, and the output of each comparator is connected to The overheating sound alarm is connected, and the debugging and monitoring terminal includes a computer host to receive data sent by the pre-detection terminal. Wherein, the operational amplifier is an LM324 operational amplifier, the temperature sensor is a DS18B20 digital temperature sensor, the overheating display alarm is an LED light, and the overheating sound alarm is a 5-10V buzzer.
实施例2： Example 2:
一种变电站二次电流回路状态在线监测系统，包括前置检测终端、调试监测终端和电源模块；所述前置检测终端与调试监测终端相连接，前置检测终端通过无线向调试监测终端传输实时信号；电源模块分别与前置检测终端、调试监测终端相连接，电源模块为前置检测终端、调试监测终端供电；所述前置检测终端包括若干个温度传感器、若干个滤波器、若干个比较器、若干个过热显示报警器和过热声音报警器，每个温度传感器依次连接对应的滤波器、比较器和过热显示报警器，每个比较器的输出端都与过热声音报警器相连接，所述调试监测终端包括计算机主机，接收前置检测终端发送的数据。其中，运算放大器采用LM324运算放大器，温度传感器采用DS18B20数字温度传感器，所述过热显示报警器采用LED灯，过热声音报警器采用5～10V的蜂鸣器。 An on-line monitoring system for the state of a secondary current loop in a substation, comprising a pre-detection terminal, a debugging and monitoring terminal, and a power module; the pre-detecting terminal is connected to the debugging and monitoring terminal, and the pre-detecting terminal transmits real-time signal; the power supply module is respectively connected with the front detection terminal and the debugging monitoring terminal, and the power supply module supplies power for the front detection terminal and the debugging monitoring terminal; the front detection terminal includes several temperature sensors, several filters, several comparison sensor, several overheating display alarms and overheating sound alarms, each temperature sensor is connected to the corresponding filter, comparator and overheating display alarm in turn, and the output end of each comparator is connected to the overheating sound alarm, so The debugging and monitoring terminal described above includes a computer host, which receives data sent by the pre-detection terminal. Wherein, the operational amplifier is an LM324 operational amplifier, the temperature sensor is a DS18B20 digital temperature sensor, the overheating display alarm is an LED light, and the overheating sound alarm is a 5-10V buzzer.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548750A (en) * | 2015-12-08 | 2016-05-04 | 江苏省电力公司连云港供电公司 | Substation current secondary loop state evaluation method based on multi-data processing |
| CN109709419A (en) * | 2018-12-26 | 2019-05-03 | 国网上海市电力公司 | A kind of Substation secondary circuit state on_line monitoring device |
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2015
- 2015-04-08 CN CN201520206974.5U patent/CN204575769U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548750A (en) * | 2015-12-08 | 2016-05-04 | 江苏省电力公司连云港供电公司 | Substation current secondary loop state evaluation method based on multi-data processing |
| CN105548750B (en) * | 2015-12-08 | 2018-12-14 | 江苏省电力公司连云港供电公司 | Substation's electric current secondary loop state evaluating method based on more data processings |
| CN109709419A (en) * | 2018-12-26 | 2019-05-03 | 国网上海市电力公司 | A kind of Substation secondary circuit state on_line monitoring device |
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