

【技术领域】【Technical field】
本实用新型涉及一种高压电力系统中的高压开关设备,特别涉及一种罐式断路器伴热带监测装置。The utility model relates to a high-voltage switchgear in a high-voltage power system, in particular to a monitoring device for a tank-type circuit breaker heating cable.
【背景技术】【Background technique】
请参阅图1所示,为目前的伴热带工作电路结构图,当外界环境温度低于-25℃时,温控器KT1启动,KT1触点闭合启动接触器KTX1,KTX1触点闭合启动伴热带SH41;当外界环境温度低于-30℃时,温控器KT2启动,KT2触点闭合启动接触器KTX2,KTX2触点闭合启动伴热带SH42。Please refer to Figure 1, which is the structure diagram of the current working circuit of the heating cable. When the external ambient temperature is lower than -25°C, the thermostat KT1 starts, the contact of KT1 is closed to start the contactor KTX1, and the contact of KTX1 is closed to start the heating cable. SH41; when the ambient temperature is lower than -30℃, the thermostat KT2 starts, the KT2 contact closes to start the contactor KTX2, and the KTX2 contact closes to start the heating cable SH42.
目前针对SF6断路器在高寒地区使用时存在气体液化的现象,为保证断路器正常工作,往往采用在断路器外壳上加装保温装置。当环境温度低于SF6气体液化温度时,通过温控器控制加热装置自动投入或退出运行,对断路器内SF6气体进行加热,保证断路器的性能。At present, in view of the phenomenon of gas liquefaction when the SF6 circuit breaker is used in the alpine region, in order to ensure the normal operation of the circuit breaker, an insulation device is often installed on the circuit breaker shell. When the ambient temperature is lower than the liquefaction temperature of SF6 gas, the heating device is automatically put into or out of operation through the temperature controller control, and the SF6 gas in the circuit breaker is heated to ensure the performance of the circuit breaker.
如果没有伴热带监测装置,用户将无法了解伴热带是否正常工作,伴热带损坏无法正常投入时,将会影响产品的正常运行。If there is no heating cable monitoring device, the user will not be able to know whether the heating cable is working normally, and the normal operation of the product will be affected when the heating cable is damaged and cannot be put into operation normally.
【实用新型内容】【Content of utility model】
本实用新型的目的是提供一种罐式断路器伴热带监测装置,真实、及时的反映伴热带的运行状态,为维护和运行的提供了可靠的运行数据。The purpose of this utility model is to provide a tank type circuit breaker heating cable monitoring device, which can truly and timely reflect the running state of the heating cable, and provide reliable operation data for maintenance and operation.
为了解决上述问题,本实用新型采用如下技术方案:In order to solve the above problems, the utility model adopts the following technical solutions:
一种罐式断路器伴热带监测装置,伴热带串联有检测伴热带工作回路电流的电流隔离器,所述电流隔离器并联有继电器,所述继电器串联有指示灯,所述继电器采集电流隔离器的电流后驱动指示灯对伴热带进行监控。A tank circuit breaker heating cable monitoring device, the heating cable is connected in series with a current isolator for detecting the working circuit current of the heating cable, the current isolator is connected in parallel with a relay, the relay is connected in series with an indicator light, and the relay collects the current isolator After the electric current drives the indicator light to monitor the heating cable.
作为本实用新型的优选实施例,所述继电器包括线圈和触点开关,其中,所述线圈与电流隔离器并联,所述触点开关与指示灯串联。As a preferred embodiment of the present invention, the relay includes a coil and a contact switch, wherein the coil is connected in parallel with the current isolator, and the contact switch is connected in series with the indicator light.
作为本实用新型的优选实施例,所述电流隔离器至少包括缠绕在导电外周的线圈,通过线圈感应电流。As a preferred embodiment of the present invention, the current isolator at least includes a coil wound on a conductive outer periphery, and current is induced through the coil.
相对于现有技术,本实用新型具有以下优点:本实用新型在伴热带上串联电流隔离器,电流隔离器并联继电器,而继电器串联指示灯,这样,伴热带工作回路上的高电流被电流隔离器进行有效隔离后的安全电流被继电器检测到后,驱动工作状态指示灯以对伴热带的工作情况进行有效的监控。当伴热带正常工作时,电流隔离器正常输出电流,继电器监测到电流后,伴热带工作状态指示灯亮,说明伴热带运行正常;当伴热带未工作或发生异常情况时,电流隔离器没有电流输出,继电器返回或不动作,伴热带工作状态指示灯灭,说明伴热带未工作或者工作异常。Compared with the prior art, the utility model has the following advantages: the utility model connects the current isolator in series on the heating cable, the current isolator is connected in parallel with the relay, and the relay is connected in series with the indicator light, so that the high current on the working circuit of the heating cable is isolated by current After the safety current after the effective isolation of the relay is detected by the relay, the working status indicator is driven to effectively monitor the working condition of the heating cable. When the heating cable is working normally, the galvanic isolator outputs current normally. After the relay detects the current, the working status indicator of the heating cable is on, indicating that the heating cable is operating normally; when the heating cable is not working or an abnormal situation occurs, the galvanic isolator has no current output , the relay returns or does not act, and the working status indicator of the heating cable is off, indicating that the heating cable is not working or is working abnormally.
【附图说明】【Description of drawings】
图1为传统伴热带的工作电路结构图;Figure 1 is a working circuit structure diagram of a traditional heating cable;
图2为本实用新型监测装置的电路原理图;Fig. 2 is the circuit schematic diagram of the monitoring device of the present invention;
图3为本实用新型监测装置的具体电路结构图。Fig. 3 is a specific circuit structure diagram of the monitoring device of the present invention.
【具体实施方式】【Detailed ways】
下面结合附图对本实用新型做进一步详细描述。Below in conjunction with accompanying drawing, the utility model is described in further detail.
请参阅图2所示,一种罐式断路器伴热带监测装置,伴热带串联有检测伴热带工作回路电流的电流隔离器,所述电流隔离器并联有继电器,所述继电器串联有指示灯,所述继电器采集电流隔离器的电流后驱动指示灯对伴热带进行监控。所述继电器包括线圈和触点开关,其中,所述线圈与电流隔离器并联,所述触点开关与指示灯串联。Please refer to Figure 2, a tank circuit breaker heating cable monitoring device, the heating cable is connected in series with a current isolator for detecting the working circuit current of the heating cable, the current isolator is connected in parallel with a relay, and the relay is connected in series with an indicator light. After collecting the current of the current isolator, the relay drives the indicator light to monitor the heating cable. The relay includes a coil and a contact switch, wherein the coil is connected in parallel with the current isolator, and the contact switch is connected in series with the indicator light.
请参阅图3所示,当伴热带SH41或SH42正常工作时,电流隔离器LBH感应到电流,继电器LTD触点启动,指示灯亮。Please refer to Figure 3, when the heating cable SH41 or SH42 is working normally, the current isolator LBH senses the current, the contact of the relay LTD is activated, and the indicator light is on.
本实用新型伴热带监测系统通过串入伴热带工作回路的电流隔离器,来进行电流采集并对其回路的高电流进行有效的隔离;继电器采集电流隔离器隔离后的安全电流驱动工作状态指示灯对伴热带的工作情况进行有效的监控,将电流隔离器串入在伴热带工作回路中,并通过继电器对电流隔离器电流进行监测,当伴热带正常工作时,电流隔离器正常输出电流,继电器动作,伴热带工作状态指示灯亮,说明伴热带运行正常;当伴热带未工作或发生异常情况时,电流隔离器没有电流输出,继电器返回或不动作,伴热带工作状态指示灯灭,说明伴热带未工作或者工作异常。The monitoring system of the heating cable of the utility model collects the current and effectively isolates the high current of the circuit by connecting the current isolator of the working circuit of the heating cable in series; the safety current after the isolation of the current isolator is collected by the relay to drive the working status indicator To effectively monitor the working conditions of the heating cable, connect the current isolator in series in the working circuit of the heating cable, and monitor the current of the current isolator through the relay. When the heating cable is working normally, the current isolator outputs the current normally, and the relay action, the working status indicator light of the heating cable is on, indicating that the heating cable is operating normally; Not working or working abnormally.
本实用新型伴热带监测装置特点:Features of the monitoring device of the utility model with heating belt:
(1)安全可靠,确保操作人员的人身安全;(1) Safe and reliable, ensuring the personal safety of operators;
(2)抗干扰能力强,系统工作可靠;(2) Strong anti-interference ability and reliable system operation;
(3)系统输出一动合一动断节点,方便用户使用,从主控室进行监控;(3) The system outputs one dynamic and one dynamic break node, which is convenient for users to use and can be monitored from the main control room;
(4)安装方式简单,只需将加热器的线穿过电流隔离器,同时向指示灯提供电源。(4) The installation method is simple, just pass the wire of the heater through the current isolator, and supply power to the indicator light at the same time.
本实用新型伴热带监测装置实施效果:Implementation effect of the monitoring device of the utility model with heating belt:
(1)通过伴热带监测系统,可以真实、及时的反映伴热带的运行状态,为维护和运行的工程师提供了可靠的运行数据。(1) Through the heating cable monitoring system, it can truly and timely reflect the operation status of the heating cable, and provide reliable operation data for maintenance and operation engineers.
(2)通过伴热带监测系统,解决了伴热带工作出现问题时不能及时发现并及时处理的问题,保证变电站安全、可靠的运行。(2) Through the monitoring system of the heating cable, the problem that the heating cable cannot be found and dealt with in time when there is a problem in the work of the heating cable is solved, and the safe and reliable operation of the substation is guaranteed.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625261.3UCN203553721U (en) | 2013-10-09 | 2013-10-09 | Monitoring device for heating tape of tank type breaker |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625261.3UCN203553721U (en) | 2013-10-09 | 2013-10-09 | Monitoring device for heating tape of tank type breaker |
| Publication Number | Publication Date |
|---|---|
| CN203553721Utrue CN203553721U (en) | 2014-04-16 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320625261.3UExpired - LifetimeCN203553721U (en) | 2013-10-09 | 2013-10-09 | Monitoring device for heating tape of tank type breaker |
| Country | Link |
|---|---|
| CN (1) | CN203553721U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044596A (en)* | 2015-08-04 | 2015-11-11 | 国家电网公司 | On-line monitoring device of contact resistance of relay |
| CN107478898A (en)* | 2017-08-28 | 2017-12-15 | 曹长庆 | A kind of explosion-proof electric tracing intelligent detecting instrument and its detection method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044596A (en)* | 2015-08-04 | 2015-11-11 | 国家电网公司 | On-line monitoring device of contact resistance of relay |
| CN107478898A (en)* | 2017-08-28 | 2017-12-15 | 曹长庆 | A kind of explosion-proof electric tracing intelligent detecting instrument and its detection method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | Assignee:XI'AN XD SWITCHGEAR ELECTIC Co.,Ltd. Assignor:CHINA XD ELECTRIC Co.,Ltd. Contract record no.:2014610000106 Denomination of utility model:Monitoring device for heating tape of tank type breaker Granted publication date:20140416 License type:Exclusive License Record date:20140717 | |
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term | Granted publication date:20140416 |