CN202634061U - High-voltage switch monitoring system power supply for transformer station - Google Patents
High-voltage switch monitoring system power supply for transformer station Download PDFInfo
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- CN202634061U CN202634061U CN2012201683505U CN201220168350U CN202634061U CN 202634061 U CN202634061 U CN 202634061U CN 2012201683505 U CN2012201683505 U CN 2012201683505U CN 201220168350 U CN201220168350 U CN 201220168350U CN 202634061 U CN202634061 U CN 202634061U
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Abstract
本实用新型涉及一种变电站高压开关监测系统电源，其特征在于：取能线圈T套装在电力电缆上，通过电磁感应原理，由电力电缆上获取能量，两输出端接到单相桥式整流、滤波电路，取能线圈T二次侧并联二极管TVS1，输出端连接整流桥ZB，整流桥ZB输出连接滤波电路，L1和C1构成滤波电路，TVS2并联在C1上，D1为稳压二极管连接功率三极管Q，DC/DC为稳压芯片，DC/DC前端并联电解电容器C2，输出与D2正极连接，D2为稳压二极管，D2正极连接1个LC滤波电路，由L2和C3组成，输出连接二极管D3，D3输出连接R1与超级电容的串联回路，R1起到充电限流的作用，超级电容的正极连接电池储能回路的D4，D4与备用电池、电阻R2串联，电路Uo1与Uo2为电源输出端。其通过感应取电的方式，电源在给电子监测装置可靠供能的同时，可以保证对地的可靠绝缘，具有简单、经济、可靠的优点，适应变电站内不同的应用场合。
The utility model relates to a power supply for a substation high-voltage switch monitoring system, which is characterized in that: an energy-taking coil T is set on a power cable, and energy is obtained from the power cable through the principle of electromagnetic induction, and two output terminals are connected to a single-phase bridge rectifier, Filter circuit, the secondary side of the energy-taking coil T is connected in parallel with the diode TVS1, the output terminal is connected to the rectifier bridge ZB, the output of the rectifier bridge ZB is connected to the filter circuit, L1 and C1 form a filter circuit, TVS2 is connected in parallel to C1, and D1 is a Zener diode connected to the power transistor Q, DC/DC is a voltage regulator chip, the DC/DC front-end is connected in parallel with an electrolytic capacitor C2, the output is connected to the positive pole of D2, D2 is a Zener diode, and the positive pole of D2 is connected to an LC filter circuit, which is composed of L2 and C3, and the output is connected to diode D3 , the output of D3 is connected to the series circuit of R1 and the supercapacitor, R1 plays the role of charging current limiter, the positive pole of the supercapacitor is connected to D4 of the battery energy storage circuit, D4 is connected in series with the backup battery and resistor R2, and the circuits Uo1 and Uo2 are the output terminals of the power supply . It adopts the way of inductive power supply, the power supply can reliably supply energy to the electronic monitoring device, and at the same time, it can ensure reliable insulation to the ground. It has the advantages of simplicity, economy and reliability, and is suitable for different applications in the substation.
Description
技术领域 technical field
本实用新型涉及一种变电站高压开关监测系统电源，属于一种变电站内开关场断路器、隔离开关实时在线监测系统的电源。 The utility model relates to a power supply for a high-voltage switch monitoring system in a substation, which belongs to a power supply for a real-time on-line monitoring system for switch field circuit breakers and isolating switches in a substation.
背景技术 Background technique
变电站内供电电源获取很不方便，为了一次设备的安全，有时不允许接入其操作电源，允许接入的电源系统往往离开关设备较远，需要挖沟下管线引入，施工量较大。为了满足监测设备的供电需求，本系统设计了感应取电的供电方式，就近从动力电缆感应获取能量，保持原有供电系统方式不变，且满足本系统的供电要求。采用在动力电缆导线上套装取能线圈感应交流电压，然后经过整流、滤波、稳压后输出直流电源，电源在给电子监测装置可靠供能的同时，可以保证对地的可靠绝缘，具有简单、经济、可靠的优点。 It is very inconvenient to obtain the power supply in the substation. For the safety of the primary equipment, sometimes it is not allowed to connect to its operating power supply. The power supply system that is allowed to be connected is often far away from the switching equipment, and it needs to dig trenches to introduce pipelines, and the construction volume is relatively large. In order to meet the power supply requirements of the monitoring equipment, the system has designed a power supply method of inductive power acquisition, which can obtain energy from the power cable induction nearby, keeping the original power supply system unchanged, and meeting the power supply requirements of the system. The AC voltage is induced by the energy-taking coil on the power cable conductor, and then the DC power is output after rectification, filtering, and voltage stabilization. The power supply can provide reliable energy to the electronic monitoring device while ensuring reliable insulation to the ground. It is simple, Economical and reliable advantages.
发明内容 Contents of the invention
本实用新型的目的是提供一种变电站高压开关监测系统电源，其通过感应取电的方式，电源在给电子监测装置可靠供能的同时，可以保证对地的可靠绝缘，具有简单、经济、可靠的优点，适应变电站内不同的应用场合。 The purpose of the utility model is to provide a power supply for a substation high-voltage switch monitoring system, which takes power through induction. The power supply can reliably supply energy to the electronic monitoring device and at the same time ensure reliable insulation to the ground. It is simple, economical and reliable. Advantages, suitable for different applications in substations.
本实用新型的技术方案是这样实现的：变电站高压开关监测系统电源，其特征在于：取能线圈T套装在电力电缆上，通过电磁感应原理，由电力电缆上获取能量，两输出端接到单相桥式整流、滤波电路，取能线圈T二次侧并联二极管TVS1，输出端连接整流桥ZB，整流桥ZB输出连接滤波电路，滤波电路L1和电解电容器C1构成滤波电路，二极管TVS2并联在电解电容器C1上， D1为稳压二极管连接功率三极管Q，DC/DC为稳压芯片，稳压芯片DC/DC前端并联电解电容器C2，输出与稳压二极管D2正极连接，稳压二极管D2正极连接1个滤波电路LC，由滤波电路L2和电解电容器C3组成，输出连接二极管D3， 二极管D3输出连接电阻R1与超级电容的串联回路，电阻R1起到充电限流的作用，超级电容的正极连接电池储能回路的二极管D4，二极管D4与备用电池、电阻R2串联，电路Uo1与Uo2为电源输出端。 The technical scheme of the utility model is realized in the following way: the power supply of the substation high-voltage switch monitoring system is characterized in that: the energy-taking coil T is set on the power cable, and the energy is obtained from the power cable through the principle of electromagnetic induction, and the two output terminals are connected to the single Phase bridge rectification and filter circuit, the secondary side of the energy-taking coil T is connected in parallel with the diode TVS1, the output terminal is connected to the rectifier bridge ZB, and the output of the rectifier bridge ZB is connected to the filter circuit, the filter circuit L1 and the electrolytic capacitor C1 form a filter circuit, and the diode TVS2 is connected in parallel to the electrolytic On the capacitor C1, D1 is the Zener diode connected to the power transistor Q, DC/DC is the voltage regulator chip, the DC/DC front end of the voltage regulator chip is connected in parallel with the electrolytic capacitor C2, the output is connected to the positive pole of the Zener diode D2, and the positive pole of the Zener diode D2 is connected to 1 A filter circuit LC is composed of filter circuit L2 and electrolytic capacitor C3. The output is connected to diode D3. The output of diode D3 is connected to the series circuit of resistor R1 and supercapacitor. Resistor R1 plays the role of charging current limiter. The positive pole of supercapacitor is connected to the battery storage The diode D4 of the power circuit, the diode D4 is connected in series with the backup battery and the resistor R2, and the circuits Uo1 and Uo2 are power output terminals.
本实用新型的积极效果是其通过感应取电的方式，电源在给电子监测装置可靠供能的同时，可以保证对地的可靠绝缘，具有简单、经济、可靠的优点，适应变电站内不同的应用场合。 The positive effect of the utility model is that it takes electricity through induction. The power supply can ensure reliable insulation to the ground while reliably supplying energy to the electronic monitoring device. It has the advantages of simplicity, economy and reliability, and is suitable for different applications in substations. occasion.
附图说明 Description of drawings
图1为本实用新型的电路框图。 Fig. 1 is the circuit block diagram of the utility model.
具体实施方式 Detailed ways
下面结合附图对本实用新型作进一步说明：如图1所示，变电站高压开关监测系统电源，其特征在于：取能线圈T套装在电力电缆上，通过电磁感应原理，由电力电缆上获取能量，两输出端接到单相桥式整流、滤波电路，感应线圈T二次侧并联瞬态抑制二极管TVS1，起到抑制瞬间高电压的作用，输出连接整流桥ZB，整流桥输出连接滤波电路，滤波电路L1和C1构成滤波电路，TVS2并联在电解电容器C1上，抑制直流回路瞬间高电压，D1为稳压二极管，连接功率三极管Q，当电压大于10V时,稳压二极管D1击穿，大功率三极管Q工作，能量泄放进入工作状态,多余能量通过大功率三极管泄放掉；当U DC较低时,电路不工作,因此不会影响电源启动电流和小电流下正常工作。DC/DC前端并联电解电容器C2再次进行滤波，DC/DC为稳压芯片，本电源DC-DC模块选择了AMC34063A，电压输入范围为3-40V,输出电压5V,最大输出电流1.5A,约2mA的静态电流，具有高转换效率，高转换效率有利于进一步降低启动电流,提高电源输出功率,输出与D2正极连接，D2为稳压二极管，起限制电压的作用，稳压二极管D2正极连接1个LC滤波电路，由滤波电路L2和电解电容器C3组成，输出连接二极管D3，起到后面的储能回路不能反送点的作用，二极管D3输出连接电阻R1与超级电容的串联回路，电阻R1起到充电限流的作用，超级电容的正极连接电池储能回路的二极管D4，二极管D4与备用电池、电阻R2串联，锂电池作用是当装置第一次上电时的电源供给和感应电能不足时备用输出，超级电容作为有瞬时较大功率时提供电能，平时一直处于电荷充满状态，电路Uo1与Uo2为电源输出端。 The utility model will be further described below in conjunction with the accompanying drawings: as shown in Figure 1, the power supply of the substation high-voltage switch monitoring system is characterized in that: the energy-taking coil T is set on the power cable, and the energy is obtained from the power cable through the principle of electromagnetic induction. The two output terminals are connected to the single-phase bridge rectifier and filter circuit, and the secondary side of the induction coil T is connected in parallel with the transient suppression diode TVS1 to suppress the instantaneous high voltage. The output is connected to the rectifier bridge ZB, and the output of the rectifier bridge is connected to the filter circuit. The circuit L1 and C1 form a filter circuit, TVS2 is connected in parallel to the electrolytic capacitor C1 to suppress the instantaneous high voltage of the DC circuit, D1 is a Zener diode, connected to the power transistor Q, when the voltage is greater than 10V, the Zener diode D1 breaks down, and the high-power transistor When Q is working, the energy discharge enters the working state, and the excess energy is discharged through the high-power triode; when U DC is low, the circuit does not work, so it will not affect the starting current of the power supply and the normal operation under low current. The DC/DC front-end parallel electrolytic capacitor C2 is used for filtering again. DC/DC is a voltage regulator chip. The DC-DC module of this power supply chooses AMC34063A. The voltage input range is 3-40V, the output voltage is 5V, and the maximum output current is 1.5A, about 2mA The quiescent current has high conversion efficiency, and the high conversion efficiency is conducive to further reducing the starting current and increasing the output power of the power supply. The output is connected to the positive pole of D2. D2 is a Zener diode that limits the voltage. The positive pole of the Zener diode D2 is connected to one The LC filter circuit is composed of filter circuit L2 and electrolytic capacitor C3. The output is connected to diode D3, which plays the role of the energy storage circuit in the back. The output of diode D3 is connected to the series circuit of resistor R1 and supercapacitor. The role of charging current limiting, the positive electrode of the super capacitor is connected to the diode D4 of the battery energy storage circuit, and the diode D4 is connected in series with the backup battery and the resistor R2. The role of the lithium battery is to supply power when the device is powered on for the first time and as a backup when the induction power is insufficient. Output, the supercapacitor is used to provide electric energy when there is a large instantaneous power, and it is always in a fully charged state at ordinary times. The circuits Uo1 and Uo2 are the output terminals of the power supply.
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| CN2012201683505U CN202634061U (en) | 2012-04-20 | 2012-04-20 | High-voltage switch monitoring system power supply for transformer station |
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| CN2012201683505U CN202634061U (en) | 2012-04-20 | 2012-04-20 | High-voltage switch monitoring system power supply for transformer station |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103746443A (en) * | 2013-12-27 | 2014-04-23 | 北京四方继保自动化股份有限公司 | Alternating-current and direct-current power taking method for secondary circuit power supply of converter |
| CN104201757A (en) * | 2014-06-17 | 2014-12-10 | 国家电网公司 | Distribution network pole-mounted power supply device |
| CN105226732A (en) * | 2015-11-16 | 2016-01-06 | 重庆大学 | The draw-out power supply circuit of cable temperature monitoring device |
| CN105846660A (en) * | 2015-11-01 | 2016-08-10 | 梁德新 | Switching power supply circuit with function of power supply through backup battery |
| CN106408909A (en) * | 2016-06-23 | 2017-02-15 | 潍坊五洲浩特电气有限公司 | An intelligent electric energy meter adopting 2.4 G radio communication in place of infrared communication |
| CN108494036A (en) * | 2018-03-29 | 2018-09-04 | 安克创新科技股份有限公司 | Charging unit |
| CN108879973A (en) * | 2018-07-11 | 2018-11-23 | 广东电网有限责任公司 | Ultra-high-tension power transmission line sensing electricity getting device and system |
| CN109038865A (en) * | 2018-08-16 | 2018-12-18 | 四川瑞霆电力科技有限公司 | Temperature measuring device and its power-taking module, switching power supply circuit applied to cable accessories |
| CN109816915A (en) * | 2019-03-20 | 2019-05-28 | 武汉恒安数联电子科技有限公司 | A kind of fire acousto-optic alarm circuit |
| CN114050665A (en) * | 2022-01-17 | 2022-02-15 | 广东电网有限责任公司佛山供电局 | Working power supply for three-phase cable on-line monitoring |
| CN116582008A (en) * | 2023-05-12 | 2023-08-11 | 华东交通大学 | A magnetic field energy power management circuit |
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- 2012-04-20 CN CN2012201683505U patent/CN202634061U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103746443A (en) * | 2013-12-27 | 2014-04-23 | 北京四方继保自动化股份有限公司 | Alternating-current and direct-current power taking method for secondary circuit power supply of converter |
| CN104201757A (en) * | 2014-06-17 | 2014-12-10 | 国家电网公司 | Distribution network pole-mounted power supply device |
| CN105846660B (en) * | 2015-11-01 | 2018-10-26 | 梁德新 | With the battery-powered switching power circuit of standby electricity |
| CN105846660A (en) * | 2015-11-01 | 2016-08-10 | 梁德新 | Switching power supply circuit with function of power supply through backup battery |
| CN105226732A (en) * | 2015-11-16 | 2016-01-06 | 重庆大学 | The draw-out power supply circuit of cable temperature monitoring device |
| CN105226732B (en) * | 2015-11-16 | 2018-06-26 | 重庆大学 | The draw-out power supply circuit of cable temperature monitoring device |
| CN106408909A (en) * | 2016-06-23 | 2017-02-15 | 潍坊五洲浩特电气有限公司 | An intelligent electric energy meter adopting 2.4 G radio communication in place of infrared communication |
| CN108494036A (en) * | 2018-03-29 | 2018-09-04 | 安克创新科技股份有限公司 | Charging unit |
| CN108879973A (en) * | 2018-07-11 | 2018-11-23 | 广东电网有限责任公司 | Ultra-high-tension power transmission line sensing electricity getting device and system |
| CN109038865A (en) * | 2018-08-16 | 2018-12-18 | 四川瑞霆电力科技有限公司 | Temperature measuring device and its power-taking module, switching power supply circuit applied to cable accessories |
| CN109038865B (en) * | 2018-08-16 | 2024-01-30 | 四川瑞霆智汇科技有限公司 | Temperature measuring device applied to cable accessory, power taking module thereof and switching power supply circuit |
| CN109816915A (en) * | 2019-03-20 | 2019-05-28 | 武汉恒安数联电子科技有限公司 | A kind of fire acousto-optic alarm circuit |
| CN114050665A (en) * | 2022-01-17 | 2022-02-15 | 广东电网有限责任公司佛山供电局 | Working power supply for three-phase cable on-line monitoring |
| CN116582008A (en) * | 2023-05-12 | 2023-08-11 | 华东交通大学 | A magnetic field energy power management circuit |
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Granted publication date: 20121226 Termination date: 20130420 |