CN205103299U - With two return circuit induced voltage current detection device of tower - Google Patents
With two return circuit induced voltage current detection device of tower Download PDFInfo
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- CN205103299U CN205103299U CN201520935389.9U CN201520935389U CN205103299U CN 205103299 U CN205103299 U CN 205103299U CN 201520935389 U CN201520935389 U CN 201520935389U CN 205103299 U CN205103299 U CN 205103299U
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Abstract
本实用新型公开了一种同塔双回路感应电压电流检测装置，包括输电线路一、输电线路二、系统等值阻抗一、系统等值阻抗二、系统等值电源一、系统等值电源二、接地开关一、接地开关二、断路器一、断路器二，所述输电线路二上设有电压互感器、电流互感器；还包括控制器，所述控制器与断路器一、断路器二、接地开关一、接地开关二、电压互感器、电流互感器相连。本实用新型结构简单、检测结果准确有效，对整个220kV及以上电压等级同塔双回输电线路的设计及安全、可靠运行具有重要和现实的意义。
The utility model discloses a double-loop induction voltage and current detection device on the same tower, which comprises a transmission line 1, a transmission line 2, a system equivalent impedance 1, a system equivalent impedance 2, a system equivalent power supply 1, a system equivalent power supply 2, Grounding switch 1, grounding switch 2, circuit breaker 1, circuit breaker 2, said transmission line 2 is provided with a voltage transformer, a current transformer; also includes a controller, said controller and circuit breaker 1, circuit breaker 2, Grounding switch 1, grounding switch 2, voltage transformer and current transformer are connected. The utility model has simple structure, accurate and effective detection results, and has important and practical significance for the design, safe and reliable operation of the entire 220kV and above voltage level double-circuit transmission line on the same tower.
Description
技术领域 technical field
本实用新型涉及一种同塔双回路感应电压电流检测装置。 The utility model relates to a double-loop induced voltage and current detection device on the same tower.
背景技术 Background technique
随着电力工业的发展，220kV及以上电压等级输变电系统发展越来越迅速。随着大型电站的建设，高压输电线路出线日趋密集，由于人口稠密区、森林保护区等对线行的限制，可以使用的线行越来越少。为解决输电线路走廊越来越紧张的问题，新建的220kV及以上电压等级输电线路将尽量采用同塔双回输电线路。同塔双回路即是将两回线路同塔架设，可以有效减小线路走廊及建设费用，满足大容量输电要求。 With the development of the power industry, 220kV and above voltage level power transmission and transformation systems are developing more and more rapidly. With the construction of large-scale power stations, the outgoing lines of high-voltage transmission lines are becoming more and more dense. Due to the restrictions on line lines in densely populated areas and forest protection areas, there are fewer and fewer lines that can be used. In order to solve the problem of increasingly tense transmission line corridors, the newly built 220kV and above voltage level transmission lines will try to use double-circuit transmission lines on the same tower. The double circuit on the same tower is to erect the two circuits on the same tower, which can effectively reduce the line corridor and construction costs, and meet the requirements of large-capacity transmission.
但是，同塔双回交流线路节省了线路走廊的同时也带来了一个问题：双回线路同塔架设使导线间的距离很近，导线与导线之间、导线与大地之间均存在较强的电磁耦合和静电耦合。对于同塔双回交流线路，当一回线路停运时，由于停运线路和运行线路之间存在电磁耦合和静电耦合，在停运线路上会产生感应电压和感应电流，对于较高电压等级的同塔双回交流线路，感应电压甚至会高达几十千伏。为保证停运线路上工作人员的安全作业，避免事故发生，检测停运线路上的感应电压具有重要的意义。 However, the double-circuit AC line on the same tower saves the line corridor, but it also brings a problem: the distance between the conductors is very close when the double-circuit line is erected on the same tower, and there are strong gaps between the conductors and between the conductors and the ground. Electromagnetic coupling and electrostatic coupling. For double-circuit AC lines on the same tower, when the primary line is out of service, due to the electromagnetic coupling and electrostatic coupling between the outage line and the running line, induced voltage and current will be generated on the outage line. The induced voltage of double-circuit AC lines on the same tower may even be as high as tens of kilovolts. In order to ensure the safe operation of the staff on the outage line and avoid accidents, it is of great significance to detect the induced voltage on the outage line.
实用新型内容 Utility model content
为克服现有技术的不足，本实用新型的目的在于提供一种结构简单、操作方便的同塔双回路感应电压电流检测装置。 In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a dual-loop induction voltage and current detection device with simple structure and convenient operation on the same tower.
一种同塔双回路感应电压电流检测装置，包括输电线路一、输电线路二、系统等值阻抗一、系统等值阻抗二、系统等值电源一、系统等值电源二、接地开关一、接地开关二、断路器一、断路器二，所述断路器一设在输电线路一上，断路器二设在输电线路二上；所述系统等值电源一经系统等值阻抗一连接至输电线路一、输电线路二，所述输电线路一、输电线路二的另一端经系统等值阻抗二连接至系统等值电源二，所述接地开关一、接地开关二连接在输电线路二的两端，所述输电线路二上设有电压互感器、电流互感器；还包括控制器，所述控制器与断路器一、断路器二、接地开关一、接地开关二、电压互感器、电流互感器相连。 A dual-loop induced voltage and current detection device on the same tower, including a transmission line 1, a transmission line 2, a system equivalent impedance 1, a system equivalent impedance 2, a system equivalent power supply 1, a system equivalent power supply 2, a grounding switch 1, and a grounding switch Switch 2, circuit breaker 1, and circuit breaker 2, the circuit breaker 1 is set on the transmission line 1, and the circuit breaker 2 is set on the transmission line 2; the system equivalent power supply 1 is connected to the transmission line 1 through the system equivalent impedance 1 , Transmission line 2, the other end of the transmission line 1 and the transmission line 2 is connected to the system equivalent power supply 2 through the system equivalent impedance 2, the grounding switch 1 and the grounding switch 2 are connected to the two ends of the transmission line 2, the The transmission line 2 is provided with a voltage transformer and a current transformer; it also includes a controller, and the controller is connected with the circuit breaker 1, the circuit breaker 2, the grounding switch 1, the grounding switch 2, the voltage transformer and the current transformer.
进一步，所述控制器连接有用于显示检测结果的显示装置。 Further, the controller is connected with a display device for displaying the detection result.
进一步，所述控制器连接有工作指示灯。 Further, the controller is connected with a working indicator light.
进一步，所述控制器设置有微处理器芯片。 Further, the controller is provided with a microprocessor chip.
本实用新型的有益效果是：本实用新型采用的一种同塔双回路感应电压电流检测装置，结构简单、检测结果准确有效，对整个220kV及以上电压等级同塔双回输电线路的设计及安全、可靠运行具有重要和现实的意义。 The beneficial effects of the utility model are: the utility model adopts a double-circuit induction voltage and current detection device on the same tower, which has a simple structure and accurate and effective detection results, and is effective for the design and safety of the entire 220kV and above voltage level double-circuit transmission lines on the same tower. , Reliable operation has important and practical significance.
附图说明 Description of drawings
以下结合附图和实例对本实用新型作进一步说明。 Below in conjunction with accompanying drawing and example the utility model is described further.
图1是本实用新型的结构示意图。 Fig. 1 is a structural representation of the utility model.
具体实施方式 detailed description
参照图1，本实用新型的一种同塔双回路感应电压电流检测装置，包括输电线路一1、输电线路二2、系统等值阻抗一4、系统等值阻抗7二、系统等值电源一3、系统等值电源二8、接地开关一5、接地开关二6、断路器一（图未示出）、断路器二（图未示出），所述断路器一设在输电线路一1上，断路器二设在输电线路二2上；所述系统等值电源一3经系统等值阻抗一4连接至输电线路一1、输电线路二2，所述输电线路一1、输电线路二2的另一端经系统等值阻抗二7连接至系统等值电源二8，所述接地开关一5、接地开关二6连接在输电线路二2的两端，所述输电线路二2上设有电压互感器（图未示出）、电流互感器（图未示出）；还包括控制器（图未示出），所述控制器与断路器一、断路器二、接地开关一5、接地开关二6、电压互感器、电流互感器相连。在使用过程中，通过控制器控制断路器一闭合，断路器二断开，使输电线路一1两端接通系统等值电源一3、系统等值电源二8，然后通过控制器控制输电线路二2两端的接地开关一5、接地开关二6，并通过电压互感器、电流互感器检测输电线路二2以下情况的的感应电压电流：在两端不接地情况下的静电感应电压；在一端接地、一端不接地情况下的电磁感应电压；两端接地情况下的电磁感应电流。 With reference to Fig. 1, a kind of same-tower dual-loop induced voltage and current detection device of the present invention comprises transmission line one 1, transmission line two 2, system equivalent impedance one 4, system equivalent impedance 7 two, system equivalent power supply one 3. System equivalent power supply 2 8, grounding switch 1 5, grounding switch 2 6, circuit breaker 1 (not shown in the figure), circuit breaker 2 (not shown in the figure), the circuit breaker 1 is set on the transmission line 1 Above, the circuit breaker two is set on the transmission line two 2; the system equivalent power supply one 3 is connected to the transmission line one 1 and the transmission line two 2 through the system equivalent impedance one 4, and the transmission line one 1 and transmission line two The other end of 2 is connected to the system equivalent power supply 2 8 through the system equivalent impedance 2 7, the ground switch 1 5 and the ground switch 2 6 are connected to the two ends of the transmission line 2, and the transmission line 2 2 is provided with Voltage transformer (not shown in the figure), current transformer (not shown in the figure); also includes a controller (not shown in the figure), the controller and circuit breaker one, circuit breaker two, grounding switch one 5, grounding Switch two 6, the voltage transformer and the current transformer are connected. During use, the controller controls the circuit breaker 1 to close and the circuit breaker 2 to open, so that the two ends of the transmission line 1 are connected to the system equivalent power supply 1 3 and the system equivalent power supply 2 8, and then the transmission line is controlled by the controller Grounding switch 1 5 and grounding switch 2 6 at both ends of 22, and detect the induced voltage and current of the transmission line 22 through voltage transformers and current transformers: electrostatic induction voltage when both ends are not grounded; grounding at one end , Electromagnetic induction voltage when one end is not grounded; electromagnetic induction current when both ends are grounded.
本实施例中，所述控制器连接有用于显示检测结果的显示装置（图未示出）。 In this embodiment, the controller is connected with a display device (not shown in the figure) for displaying the detection result.
本实施例中，所述控制器连接有工作指示灯（图未示出）。 In this embodiment, the controller is connected with a working indicator light (not shown in the figure).
本实施例中，所述控制器设置有微处理器芯片（图未示出）。 In this embodiment, the controller is provided with a microprocessor chip (not shown in the figure).
本实用新型结构简单、检测结果准确有效，对整个220kV及以上电压等级同塔双回输电线路的设计及安全、可靠运行具有重要和现实的意义。 The utility model has simple structure, accurate and effective detection results, and has important and practical significance for the design, safe and reliable operation of the entire 220kV and above voltage level double-circuit transmission line on the same tower.
以上所述，只是本实用新型的较佳实施例而已，本实用新型并不局限于上述实施方式，只要其以相同的手段达到本实用新型的技术效果，都应属于本实用新型的保护范围。 The above is only a preferred embodiment of the utility model, and the utility model is not limited to the above-mentioned embodiment, as long as it achieves the technical effect of the utility model by the same means, it should belong to the protection scope of the utility model.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520935389.9U CN205103299U (en) | 2015-11-20 | 2015-11-20 | With two return circuit induced voltage current detection device of tower |
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| CN201520935389.9U CN205103299U (en) | 2015-11-20 | 2015-11-20 | With two return circuit induced voltage current detection device of tower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383259A (en) * | 2016-09-06 | 2017-02-08 | 广东电网有限责任公司江门供电局 | Induced current and inducted voltage measurement method of multi-circuit transmission lines on same tower |
| CN108152721A (en) * | 2017-10-26 | 2018-06-12 | 中国电力科学研究院有限公司 | High-speed grounding switch parameter determination method and device along half-wave power transmission circuit |
| CN110568243A (en) * | 2019-09-25 | 2019-12-13 | 国网上海市电力公司 | A method for measuring the induced voltage and current of a four-circuit line on the same tower |
-
2015
- 2015-11-20 CN CN201520935389.9U patent/CN205103299U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383259A (en) * | 2016-09-06 | 2017-02-08 | 广东电网有限责任公司江门供电局 | Induced current and inducted voltage measurement method of multi-circuit transmission lines on same tower |
| CN108152721A (en) * | 2017-10-26 | 2018-06-12 | 中国电力科学研究院有限公司 | High-speed grounding switch parameter determination method and device along half-wave power transmission circuit |
| CN108152721B (en) * | 2017-10-26 | 2022-05-31 | 中国电力科学研究院有限公司 | Method and device for determining parameters of high-speed grounding switch along half-wavelength power transmission line |
| CN110568243A (en) * | 2019-09-25 | 2019-12-13 | 国网上海市电力公司 | A method for measuring the induced voltage and current of a four-circuit line on the same tower |
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Granted publication date: 20160323 |