CN102624092A - Leakage current abnormal remote alarm device for lightning arrester of distribution transformer station zone - Google Patents

Leakage current abnormal remote alarm device for lightning arrester of distribution transformer station zone Download PDF

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CN102624092A
CN102624092A CN2012100948999A CN201210094899A CN102624092A CN 102624092 A CN102624092 A CN 102624092A CN 2012100948999 A CN2012100948999 A CN 2012100948999A CN 201210094899 A CN201210094899 A CN 201210094899A CN 102624092 A CN102624092 A CN 102624092A
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circuit
leakage current
arrester
signal
signal data
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陈家斌
张露江
季宏
陈蕾
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Zhumadian Power Supply Co of State Grid Henan Electric Power Co Ltd
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Zhumadian Power Supply Co of Henan Electric Power Co
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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Abstract

本发明公开了一种配电变压器台区避雷器泄漏电流异常远方报警装置，包括泄漏电流信号数据采集电路，用于从避雷器泄漏电流在线监测电路中采集泄漏电流信号数据；信号数据计算判断电路，用于将泄漏电流信号数据采集电路采集到的电流信号进行计算，判断避雷器泄漏电流是否超过设定值，并将超过设定值信号传送至远方报警通信电路；远方报警通信电路，用于将信号数据计算判断电路输出的避雷器泄漏电流超过设定值信号传送至配网供电智能控制中心和/或值班电工手机。本发明能够对电力系统10~20kV配电变压器台区避雷器的泄漏电流进行实时监控，减小工作人员劳动强度，保证用户的正常供电，提高供电可靠性，降低供电设备损坏率。

The invention discloses a remote alarm device for an abnormal leakage current of a lightning arrester in a distribution transformer station area, which includes a leakage current signal data acquisition circuit for collecting leakage current signal data from an online monitoring circuit for the leakage current of a lightning arrester; and a signal data calculation and judgment circuit for use in It is used to calculate the current signal collected by the leakage current signal data acquisition circuit, judge whether the leakage current of the arrester exceeds the set value, and transmit the signal exceeding the set value to the remote alarm communication circuit; the remote alarm communication circuit is used to transmit the signal data The signal output by the calculation and judgment circuit that the leakage current of the arrester exceeds the set value is sent to the distribution network power supply intelligent control center and/or the mobile phone of the electrician on duty. The invention can monitor the leakage current of the lightning arrester in the 10-20kV distribution transformer area of the power system in real time, reduce the labor intensity of staff, ensure the normal power supply of users, improve the reliability of power supply, and reduce the damage rate of power supply equipment.

Description

一种配电变压器台区避雷器泄漏电流异常远方报警装置A remote alarm device for abnormal leakage current of lightning arrester in distribution transformer station area

技术领域 technical field

本发明涉及一种远方报警装置，尤其涉及一种适用于电力系统10~20kV 配电变压器台区的避雷器泄漏电流异常远方报警装置。 The invention relates to a remote alarm device, in particular to a remote alarm device for abnormal leakage current of arresters suitable for 10-20kV distribution transformers in power systems.

背景技术 Background technique

目前，我国电力系统全面开展智能电网建设，对全电网实行智能控制、智能管理与智能分析。其中，对于电力系统10~20kV 配电变压器台区的避雷器泄漏电流异常远方报警技术研究，也是电网智能化普及应用中重要的一部分。 At present, my country's power system is fully developing smart grid construction, implementing intelligent control, intelligent management and intelligent analysis of the entire grid. Among them, the research on the remote alarm technology for the abnormal leakage current of the arrester in the 10~20kV distribution transformer area of the power system is also an important part of the popularization and application of power grid intelligence.

我国在运行的电力系统10~20kV 配电变压器台区安装的避雷器泄漏电流无法实现实时监控。当避雷器发生故障，如发生泄漏电流异常时，只有依靠供电值班人员去进行设备检查，当发现避雷器发生故障后再进行维修。这种人工检修的方法导致检修时间过长，工作人员劳动强度大，同时影响到用户的正常供电，降低了供电可靠性，增加了供电设备的损坏率。 The leakage current of the arrester installed in the 10~20kV distribution transformer area of the power system in operation in my country cannot be monitored in real time. When the arrester breaks down, such as abnormal leakage current, only rely on the power supply personnel on duty to check the equipment, and repair it after finding the arrester breaks down. This manual maintenance method leads to long maintenance time and high labor intensity, which affects the normal power supply of users, reduces the reliability of power supply, and increases the damage rate of power supply equipment.

发明内容 Contents of the invention

本发明的目的是提供一种配电变压器台区避雷器泄漏电流异常远方报警装置，能够实现对电力系统10~20kV 配电变压器台区避雷器的泄漏电流进行实时监控，减小工作人员劳动强度，保证用户的正常供电，提高供电可靠性，降低供电设备损坏率。 The purpose of the present invention is to provide a remote alarm device for the abnormal leakage current of the distribution transformer arrester, which can realize real-time monitoring of the leakage current of the 10-20kV distribution transformer arrester in the power system, reduce the labor intensity of the staff, and ensure The normal power supply of users improves the reliability of power supply and reduces the damage rate of power supply equipment.

本发明采用下述技术方案： The present invention adopts following technical scheme:

一种配电变压器台区避雷器泄漏电流异常远方报警装置，包括泄漏电流信号数据采集电路，用于从避雷器泄漏电流在线监测电路中采集泄漏电流信号数据；信号数据计算判断电路，用于将泄漏电流信号数据采集电路采集到的电流信号进行计算，判断避雷器泄漏电流是否超过设定值，并将超过设定值信号传送至远方报警通信电路；远方报警通信电路，用于将信号数据计算判断电路输出的避雷器泄漏电流超过设定值信号传送至配网供电智能控制中心和/或值班电工手机。 A remote alarm device for abnormal leakage current of a lightning arrester in a distribution transformer station area, including a leakage current signal data acquisition circuit for collecting leakage current signal data from an online monitoring circuit for the leakage current of a lightning arrester; a signal data calculation and judgment circuit for converting the leakage current Calculate the current signal collected by the signal data acquisition circuit, judge whether the leakage current of the arrester exceeds the set value, and transmit the signal exceeding the set value to the remote alarm communication circuit; the remote alarm communication circuit is used to calculate the signal data and judge the output of the circuit The signal that the leakage current of the lightning arrester exceeds the set value is sent to the distribution network power supply intelligent control center and/or the mobile phone of the electrician on duty.

所述的泄漏电流信号数据采集电路包括泄漏电流监测电路，泄漏电流监测电路的输入端连接避雷器本体下端接线端，泄漏电流监测电路的接地端连接避雷器接地装置，泄漏电流监测电路的输出端连接信号数据计算判断电路的输入端。 The leakage current signal data acquisition circuit includes a leakage current monitoring circuit, the input end of the leakage current monitoring circuit is connected to the terminal at the lower end of the arrester body, the grounding end of the leakage current monitoring circuit is connected to the grounding device of the arrester, and the output end of the leakage current monitoring circuit is connected to the signal The input end of the data calculation judgment circuit.

所述的信号数据计算判断电路包括A/D转换电路、计算判断电路、执行电路，所述A/D转换电路的信号输入端连接泄漏电流监测电路的输出端，A/D转换电路的信号输出端连接计算判断电路的信号输入端，计算判断电路的信号输出端连接执行电路的信号输入端。 The signal data calculation and judgment circuit includes an A/D conversion circuit, a calculation and judgment circuit, and an execution circuit. The signal input end of the A/D conversion circuit is connected to the output end of the leakage current monitoring circuit, and the signal output of the A/D conversion circuit is The terminal is connected to the signal input terminal of the calculation and judgment circuit, and the signal output terminal of the calculation and judgment circuit is connected to the signal input terminal of the execution circuit.

所述的执行电路包括中央处理单元、继电器驱动电路和继电器，中央处理单元的输入端连接计算判断电路的信号输出端，中央处理单元的输出端通过继电器驱动电路控制连接继电器线圈，继电器的常开触点串联在远方报警通信电路上。 The execution circuit includes a central processing unit, a relay drive circuit and a relay, the input end of the central processing unit is connected to the signal output end of the calculation and judgment circuit, the output end of the central processing unit is connected to the relay coil through the control of the relay drive circuit, and the normally open The contacts are connected in series on the remote alarm communication circuit.

所述的远方报警通信电路包括光纤通信电缆电路和/或无线通信电路。 The remote alarm communication circuit includes an optical fiber communication cable circuit and/or a wireless communication circuit.

所述的光纤通信电缆电路包括光纤电缆和用于将电信号转变为光信号的光发射电路，所述的继电器的常开触点串联在光发射电路的电源电路上，光发射电路的输出端连接光纤电缆的输入端，光纤电缆的输出端连接配网供电智能控制中心。 The optical fiber communication cable circuit includes an optical fiber cable and a light emitting circuit for converting electrical signals into optical signals, the normally open contact of the relay is connected in series on the power supply circuit of the light emitting circuit, and the output terminal of the light emitting circuit The input end of the optical fiber cable is connected, and the output end of the optical fiber cable is connected to the distribution network power supply intelligent control center.

所述的无线通信电路包括信号输入电路、编码电路和发射电路，所述的继电器的常开触点串联在信号输入电路的电源电路上，信号输入电路的输出端连接编码电路的输入端，编码电路的输出端连接发射电路的输入端，发射电路与配网供电智能控制中心和/或值班电工手机无线通讯匹配。 The wireless communication circuit includes a signal input circuit, an encoding circuit and a transmitting circuit, the normally open contacts of the relay are connected in series on the power supply circuit of the signal input circuit, the output end of the signal input circuit is connected to the input end of the encoding circuit, and the encoding The output end of the circuit is connected to the input end of the transmitting circuit, and the transmitting circuit is matched with the intelligent control center for distribution network power supply and/or the mobile phone of the electrician on duty for wireless communication.

本发明能够对电力系统10~20kV 配电变压器台区避雷器的泄漏电流进行实时监控，当避雷器发生泄漏电流异常时可及时通知工作人员，减小工作人员劳动强度，保证用户的正常供电，提高供电可靠性，降低供电设备损坏率。 The invention can monitor the leakage current of the lightning arrester in the 10-20kV distribution transformer area of the power system in real time. When the leakage current of the lightning arrester is abnormal, the staff can be notified in time, the labor intensity of the staff can be reduced, the normal power supply of the user can be guaranteed, and the power supply can be improved. Reliability, reduce the damage rate of power supply equipment.

附图说明 Description of drawings

图1为本发明的原理框图； Fig. 1 is a block diagram of the present invention;

图2为本发明所述泄漏电流信号数据采集电路的原理框图； Fig. 2 is the functional block diagram of leakage current signal data acquisition circuit of the present invention;

图3为本发明所述信号数据计算判断电路的原理框图； Fig. 3 is a functional block diagram of the signal data calculation and judgment circuit of the present invention;

图4为本发明所述光纤通信电缆电路的原理框图； Fig. 4 is the functional block diagram of the optical fiber communication cable circuit of the present invention;

图5为本发明所述无线通信电路的原理框图。 Fig. 5 is a functional block diagram of the wireless communication circuit of the present invention.

具体实施方式 Detailed ways

如图1至图5所示，本发明包括泄漏电流信号数据采集电路、信号数据计算判断电路和远方报警通信电路，泄漏电流信号数据采集电路的输出端连接信号数据计算判断电路的输入端，信号数据计算判断电路的输出端连接远方报警通信电路的输入端，远方报警通信电路连接配网供电智能控制中心和/或值班电工手机。 As shown in Figures 1 to 5, the present invention includes a leakage current signal data acquisition circuit, a signal data calculation and judgment circuit, and a remote alarm communication circuit, the output end of the leakage current signal data acquisition circuit is connected to the input end of the signal data calculation and judgment circuit, and the signal The output end of the data calculation and judgment circuit is connected to the input end of the remote alarm communication circuit, and the remote alarm communication circuit is connected to the distribution network power supply intelligent control center and/or the mobile phone of the electrician on duty.

所述的泄漏电流信号数据采集电路用于从避雷器泄漏电流在线监测电路中采集泄漏电流信号数据。泄漏电流信号数据采集电路包括泄漏电流监测电路，泄漏电流监测电路的输入端连接避雷器本体下端接线端，避雷器本体上端接线端连接线路相线，泄漏电流监测电路的接地端连接避雷器接地装置，泄漏电流监测电路的输出端连接信号数据计算判断电路的输入端。 The leakage current signal data collection circuit is used for collecting leakage current signal data from the lightning arrester leakage current online monitoring circuit. The leakage current signal data acquisition circuit includes a leakage current monitoring circuit. The input terminal of the leakage current monitoring circuit is connected to the lower terminal of the arrester body, the upper terminal of the arrester body is connected to the phase line of the line, and the ground terminal of the leakage current monitoring circuit is connected to the grounding device of the arrester. The output end of the monitoring circuit is connected to the input end of the signal data calculation and judgment circuit.

所述的信号数据计算判断电路，用于将泄漏电流信号数据采集电路采集到的电流信号进行计算，判断避雷器泄漏电流是否超过设定值，并将超过设定值信号传送至远方报警通信电路。信号数据计算判断电路包括A/D转换电路、计算判断电路、执行电路，所述A/D转换电路的信号输入端连接泄漏电流监测电路的输出端，A/D转换电路的信号输出端连接计算判断电路的信号输入端，计算判断电路的信号输出端连接执行电路的信号输入端。所述的执行电路包括中央处理单元、继电器驱动电路和继电器，中央处理单元的输入端连接计算判断电路的信号输出端，中央处理单元的输出端通过继电器驱动电路控制连接继电器线圈，继电器的常开触点串联在远方报警通信电路上。中央处理单元可采用单片机。 The signal data calculation and judgment circuit is used to calculate the current signal collected by the leakage current signal data acquisition circuit, judge whether the leakage current of the arrester exceeds the set value, and transmit the exceed set value signal to the remote alarm communication circuit. The signal data calculation and judgment circuit includes an A/D conversion circuit, a calculation and judgment circuit, and an execution circuit. The signal input end of the A/D conversion circuit is connected to the output end of the leakage current monitoring circuit, and the signal output end of the A/D conversion circuit is connected to the calculation The signal input end of the judgment circuit and the signal output end of the calculation judgment circuit are connected to the signal input end of the execution circuit. The execution circuit includes a central processing unit, a relay drive circuit and a relay, the input end of the central processing unit is connected to the signal output end of the calculation and judgment circuit, the output end of the central processing unit is connected to the relay coil through the control of the relay drive circuit, and the normally open The contacts are connected in series on the remote alarm communication circuit. The central processing unit can adopt a single-chip microcomputer.

所述的远方报警通信电路，用于将信号数据计算判断电路输出的避雷器泄漏电流超过设定值信号传送至配网供电智能控制中心或值班电工手机。远方报警通信电路可采用光纤通信电缆电路和/或无线通信电路。光纤通信电缆电路包括光纤电缆和用于将电信号转变为光信号的光发射电路，所述的继电器的常开触点串联在光发射电路的电源电路上，光发射电路的输出端连接光纤电缆的输入端，光纤电缆的输出端连接配网供电智能控制中心。无线通信电路包括信号输入电路、编码电路和发射电路，所述的继电器的常开触点串联在信号输入电路的电源电路上，信号输入电路的输出端连接编码电路的输入端，编码电路的输出端连接发射电路的输入端，发射电路与配网供电智能控制中心和/或值班电工手机无线通讯匹配。 The remote alarm communication circuit is used to transmit the signal that the leakage current of the arrester output by the signal data calculation and judgment circuit exceeds the set value to the distribution network power supply intelligent control center or the mobile phone of the electrician on duty. The remote alarm communication circuit can adopt optical fiber communication cable circuit and/or wireless communication circuit. The optical fiber communication cable circuit includes an optical fiber cable and an optical emission circuit for converting electrical signals into optical signals. The normally open contact of the relay is connected in series with the power supply circuit of the optical emission circuit, and the output end of the optical emission circuit is connected to the optical fiber cable The input end of the fiber optic cable is connected to the distribution network power supply intelligent control center. The wireless communication circuit includes a signal input circuit, an encoding circuit and a transmitting circuit. The normally open contacts of the relay are connected in series on the power supply circuit of the signal input circuit, the output end of the signal input circuit is connected to the input end of the encoding circuit, and the output end of the encoding circuit The terminal is connected to the input terminal of the transmitting circuit, and the transmitting circuit is matched with the wireless communication of the distribution network power supply intelligent control center and/or the mobile phone of the electrician on duty.

本发明在工作时，泄漏电流监测电路从避雷器本体安装电路中采集泄漏电流信号数据，并将采集到的泄漏电流信号数据传送至信号数据计算判断电路，信号数据计算判断电路判断避雷器泄漏电流是否超过设定值，若避雷器泄漏电流超过设定值，中央处理单元通过继电器驱动电路控制继电器线圈通电，继电器的常开触点闭合，此时远方报警通信电路中光发射电路的电源电路和/或信号输入电路的电源电路导通，报警信号可通过光纤电缆和/或发射电路传送至配网供电智能控制中心和/或值班电工手机，提示工作人员进行维修。 When the present invention is working, the leakage current monitoring circuit collects the leakage current signal data from the installation circuit of the arrester body, and transmits the collected leakage current signal data to the signal data calculation and judgment circuit, and the signal data calculation and judgment circuit judges whether the arrester leakage current exceeds Set value, if the arrester leakage current exceeds the set value, the central processing unit controls the relay coil to be energized through the relay drive circuit, and the normally open contact of the relay is closed. At this time, the power circuit and/or signal of the light emitting circuit in the remote alarm communication circuit The power circuit of the input circuit is turned on, and the alarm signal can be transmitted to the distribution network power supply intelligent control center and/or the mobile phone of the electrician on duty through the optical fiber cable and/or the transmitting circuit, prompting the staff to perform maintenance.

以上实施例仅用以说明本发明的技术方案而非对其限制；尽管参照较佳实施例对本发明进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本发明的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本发明技术方案的精神，其均应涵盖在本发明请求保护的技术方案范围当中。 The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the specific implementation of the present invention can still be carried out Modification or equivalent replacement of some technical features; without departing from the spirit of the technical solution of the present invention, all of them shall be included in the scope of the technical solution claimed in the present invention.

Claims (7)

1. a distribution transformer platform district unusual distant place of leakage current of an arrester warning device is characterized in that: comprise the leakage current signal data acquisition circuit, be used for gathering the leakage current signal data from leakage current of an arrester on-line monitoring circuit; Signal data calculates decision circuitry, is used for the current signal that the leakage current signal data acquisition circuit collects is calculated, and judges that whether leakage current of an arrester surpasses set point, and will be sent to distant place alarm communication circuit above duty setting signal; Distant place alarm communication circuit is used for that the leakage current of an arrester that signal data calculates decision circuitry output is surpassed duty setting signal and is sent to distribution supply intelligent control centre and/or shift electrician's mobile phone.
2. the distribution transformer platform according to claim 1 district unusual distant place of leakage current of an arrester warning device; It is characterized in that: described leakage current signal data acquisition circuit comprises the leakage current monitor circuit; The input of leakage current monitor circuit connects lightning arrester body lower end terminals; The earth terminal of leakage current monitor circuit connects earthing of lightening arrester, and the output of leakage current monitor circuit connects the input that signal data calculates decision circuitry.
3. the distribution transformer platform according to claim 2 district unusual distant place of leakage current of an arrester warning device; It is characterized in that: described signal data calculates decision circuitry and comprises the A/D change-over circuit, calculates decision circuitry, executive circuit; The signal input part of said A/D change-over circuit connects the output of leakage current monitor circuit; The signal output part of A/D change-over circuit connects the signal input part that calculates decision circuitry, and the signal output part that calculates decision circuitry connects the signal input part of executive circuit.
4. the distribution transformer platform according to claim 3 district unusual distant place of leakage current of an arrester warning device; It is characterized in that: described executive circuit comprises CPU, relay drive circuit and relay; The input of CPU connects the signal output part that calculates decision circuitry; The output of CPU is through relay drive circuit control connection relay coil, and the normally opened contact of relay is connected on the alarm communication circuit of a distant place.
5. the distribution transformer platform according to claim 4 district unusual distant place of leakage current of an arrester warning device is characterized in that: described distant place alarm communication circuit comprises optical fibre communication cable circuit and/or radio communication circuit.
6. the distribution transformer platform according to claim 5 district unusual distant place of leakage current of an arrester warning device; It is characterized in that: described optical fibre communication cable circuit comprises fiber optic cables and the optical transmission circuit that is used for the signal of telecommunication is changed into light signal; The normally opened contact of described relay is connected on the power circuit of optical transmission circuit; The output of optical transmission circuit connects the input of fiber optic cables, and the output of fiber optic cables connects distribution supply intelligent control centre.
7. the distribution transformer platform according to claim 5 district unusual distant place of leakage current of an arrester warning device; It is characterized in that: described radio communication circuit comprises signal input circuit, coding circuit and radiating circuit; The normally opened contact of described relay is connected on the power circuit of signal input circuit; The output of signal input circuit connects the input of coding circuit; The output of coding circuit connects the input of radiating circuit, radiating circuit and distribution supply intelligent control centre and/or shift electrician's mobile phone wireless communication coupling.
CN2012100948999A 2012-04-01 2012-04-01 Leakage current abnormal remote alarm device for lightning arrester of distribution transformer station zone Pending CN102624092A (en)

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CN102868229A (en) * 2012-10-17 2013-01-09 河南省电力公司驻马店供电公司 Intelligent management command system for state maintenance of power distribution network equipment
CN102868230A (en) * 2012-10-17 2013-01-09 河南省电力公司驻马店供电公司 Intelligent managing device for condition based maintenance of 10-20kv transformer
CN103051057A (en) * 2012-12-04 2013-04-17 河南省电力公司驻马店供电公司 Transformer equipment state overhaul intelligent management monitoring system
CN103050896A (en) * 2012-12-04 2013-04-17 河南省电力公司驻马店供电公司 Intelligent management device for condition based maintenance of electric transformer
CN103759808A (en) * 2014-02-20 2014-04-30 重庆大学 Noise monitoring and early warning signal transmitting system of transformer

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CN201985623U (en) * 2011-02-07 2011-09-21 陈家斌 Device for performing remote alarm to abnormal running of distribution transformer
CN202602369U (en) * 2012-04-01 2012-12-12 河南省电力公司驻马店供电公司 Leakage current abnormity remote alarm device of distribution transformer station area arrester

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CN102868229A (en) * 2012-10-17 2013-01-09 河南省电力公司驻马店供电公司 Intelligent management command system for state maintenance of power distribution network equipment
CN102868230A (en) * 2012-10-17 2013-01-09 河南省电力公司驻马店供电公司 Intelligent managing device for condition based maintenance of 10-20kv transformer
CN103051057A (en) * 2012-12-04 2013-04-17 河南省电力公司驻马店供电公司 Transformer equipment state overhaul intelligent management monitoring system
CN103050896A (en) * 2012-12-04 2013-04-17 河南省电力公司驻马店供电公司 Intelligent management device for condition based maintenance of electric transformer
CN103051057B (en) * 2012-12-04 2015-08-05 河南省电力公司驻马店供电公司 Condition-based Maintenance of Substation Equipment intelligent management supervisory control system
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CN103759808A (en) * 2014-02-20 2014-04-30 重庆大学 Noise monitoring and early warning signal transmitting system of transformer
CN103759808B (en) * 2014-02-20 2017-07-14 重庆大学 Transformer noise is monitored and pre-warning signal emission system

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Application publication date: 20120801