CN111426916A - A method and system for simulating grounding pole line faults - Google Patents
A method and system for simulating grounding pole line faults Download PDFInfo
- Publication number
- CN111426916A CN111426916A CN202010408095.6A CN202010408095A CN111426916A CN 111426916 A CN111426916 A CN 111426916A CN 202010408095 A CN202010408095 A CN 202010408095A CN 111426916 A CN111426916 A CN 111426916A
- Authority
- CN
- China
- Prior art keywords
- module
- line
- arc
- tower
- grounding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004088 simulation Methods 0.000 claims abstract description 64
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 230000000630 rising effect Effects 0.000 claims description 9
- 238000010998 test method Methods 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000010586 diagram Methods 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
Abstract
本发明涉及一种接地极线路故障模拟方法和系统,属于高压电技术领域。所述方法先确定接地极线路中的模拟试验杆塔;再在模拟试验杆塔安装辅助试验装置;再安装模拟试验装置;再安装模拟引线,最后线路带电,启动接地极线路模拟试验装置,实现接地极线路接地故障模拟。所述的接地极线路故障模拟系统包括由绝缘支撑杆和垂直导线构成的辅助试验装置以及由传动模块、动力模块、输入模块、控制模块、电流检测以及引弧线操作模块等构成。通过该故障模拟方法和系统,可以实现接地极线路故障的准确模拟。
The invention relates to a grounding electrode line fault simulation method and system, and belongs to the technical field of high-voltage electricity. The method firstly determines the simulated test tower in the ground electrode line; then installs an auxiliary test device on the simulated test tower; then installs the simulated test device; then installs the simulated lead wire, finally the line is electrified, starts the ground electrode circuit simulation test device, and realizes the ground electrode Line ground fault simulation. The grounding electrode line fault simulation system includes an auxiliary test device composed of an insulating support rod and a vertical wire, and a transmission module, a power module, an input module, a control module, a current detection, and an arc-striking line operation module. Through the fault simulation method and system, accurate simulation of grounding pole line faults can be achieved.
Description
技术领域technical field
本发明涉及一种接地极线路故障模拟方法和系统,属于高压电技术领域。The invention relates to a grounding electrode line fault simulation method and system, and belongs to the technical field of high-voltage electricity.
背景技术Background technique
直流接地极及直流接地极线路是直流输电工程的重要组成部分,开展接地极线路故障模拟,是为了检验直流控制保护系统能否在故障下准确动作,检验故障测距系统能否准确的进行故障距离的测量,是直流工程调试过程中最为重要的一步。传统的直流接地极故障模拟中,在需要在试验时,先对整个直流线路以及直流接地极线路进行停电,在停电后,将试验装置,如短路试验框,悬挂在接地极线路试验位置。然后恢复送电,采用弹射装置或者弓弩装置将一根接地的引弧试验线带入短路试验框,从而形成故障模拟,或者采用人工的方式,进行故障的模拟。不管采用这两种方式中的哪一种,都需要停电,而直流输电输送的电量都比较大,造成较大的停电损失。同时,直流接地极线路的保护与直流线路、交流线路保护等不同,采用上诉方式时,线路故障的持续时间很难准确把握,如果持续时间太短,系统判断为扰动,保护系统不动作;如果持续时间太长,系统判断为永久性故障,系统闭锁,停止送电,给系统带来较大的不利影响。如何在进行接地极线路不停电下的故障的模拟,并持续规定的时间,达到试验目的,成为本领域亟待解决的技术问题。The DC grounding electrode and the DC grounding electrode line are an important part of the DC power transmission project. The grounding electrode line fault simulation is carried out to test whether the DC control and protection system can operate accurately under the fault, and whether the fault location system can accurately carry out the fault. Distance measurement is the most important step in the process of DC engineering debugging. In the traditional DC ground electrode fault simulation, when the test is required, the entire DC line and the DC ground electrode line are first powered off. After the power failure, the test device, such as a short-circuit test frame, is suspended at the ground electrode line test position. Then restore the power transmission, use a catapult device or a crossbow device to bring a grounded arc ignition test wire into the short-circuit test frame, so as to form a fault simulation, or use a manual method to simulate the fault. No matter which one of the two methods is adopted, a power outage is required, and the amount of electricity transmitted by the DC transmission is relatively large, resulting in a large power outage loss. At the same time, the protection of the DC grounding pole line is different from the protection of the DC line and the AC line. When the appeal method is adopted, it is difficult to accurately grasp the duration of the line fault. If the duration is too short, the system will judge it as a disturbance and the protection system will not act. If the duration is too long, the system will be judged as a permanent fault, the system will be blocked, and the power transmission will be stopped, which will bring great adverse effects to the system. How to simulate the fault of the grounding electrode line without power failure and continue for a specified time to achieve the purpose of the test has become a technical problem to be solved urgently in the field.
发明内容SUMMARY OF THE INVENTION
本发明要解决的技术问题是提供一种接地极线路故障模拟方法和系统,用于解决直流接地极故障模拟时故障持续时间不能准确模拟,影响试验效率和电网正常运行的问题。The technical problem to be solved by the present invention is to provide a grounding pole line fault simulation method and system, which is used to solve the problem that the fault duration cannot be accurately simulated during DC grounding fault simulation, which affects the test efficiency and the normal operation of the power grid.
本发明的技术方案是:一种接地极线路故障模拟试验方法,具体步骤为:The technical scheme of the present invention is: a grounding pole line fault simulation test method, the specific steps are:
Step1:根据调度要求的故障范围确定接地极线路故障模拟试验的杆塔N,通过杆塔N的塔图获取杆塔横档高度Ht和绝缘子串长度Lj;Step1: Determine the pole tower N of the grounding pole line fault simulation test according to the fault range required by the dispatching, and obtain the pole tower rung height Ht and the insulator string length Lj through the tower map of the pole tower N;
Step2:在模拟试验杆塔上安装辅助L型试验装置;Step2: Install the auxiliary L-type test device on the simulated test tower;
Step3:安装接地极线路模拟试验装置;Step3: Install the ground electrode circuit simulation test device;
Step4:安装故障模拟引线,故障模拟引线的一端连接至杆塔接地装置,另外一端连接模拟试验装置的引弧线操作装置;Step4: Install the fault simulation lead. One end of the fault simulation lead is connected to the tower grounding device, and the other end is connected to the arc-striking wire operating device of the simulation test device;
Step5:线路带电,启动接地极线路模拟试验装置,实现接地极线路接地故障模拟。Step 5: When the line is live, start the grounding electrode line simulation test device to realize the grounding fault simulation of the grounding electrode line.
优选的,所述Step1中接地极线路故障模拟试验的杆塔N为耐张塔。Preferably, the tower N in the grounding pole line fault simulation test in
优选的,所述Step2中安装辅助L型试验装置时,其支撑用的绝缘支撑杆位置对地高度H1满足对地安全绝缘大于3m。Preferably, when the auxiliary L-shaped test device is installed in the Step 2, the height H 1 of the insulating support rod used for its support to the ground satisfies that the safety insulation to the ground is greater than 3m.
优选的,所述Step2中安装辅助L型试验装置时,其导线引下线的长度为L3,L3=Ht-H1+Δ1+Δ2,Δ1为导线引下线在接地极线路上缠绕的长度,Δ2为导线引下线在绝缘支撑杆上缠绕的长度,所述的导线引下线通常为铜质材料。Preferably, when the auxiliary L-shaped test device is installed in the Step 2, the length of the lead wire is L 3 , L 3 = H t -H 1 +Δ1+Δ2, and Δ1 is the lead wire on the ground electrode line. The winding length, Δ2 is the length of the lead wire wound on the insulating support rod, and the lead wire is usually made of copper material.
优选的,所述Step2中安装模拟试验杆塔辅助L型试验装置前,在接地极线路上采用铝箔带进行缠绕保护,所示保护范围满足垂直导线3-4倍直径,宽度不少于10cm-20cm。Preferably, before installing the simulated test tower auxiliary L-type test device in Step 2, use aluminum foil tape to wrap the grounding electrode line for protection. .
优选的,所述Step4中确定引弧线的长度为L1;Preferably, the length of the arc-starting line is determined to be L 1 in the Step 4;
其中,k1为安全系数,取值范围1.05-1.1之间,将引弧线一端与杆塔接地装置连接,另一端与通过引弧线操作模块实现故障模拟;Among them, k1 is the safety factor, and the value range is between 1.05-1.1. One end of the arc-striking line is connected to the tower grounding device, and the other end is connected to the arc-striking line operation module to achieve fault simulation;
所述的引弧线通常为1mm2-10mm2的裸铜线,一端连接杆塔接地装置,另一端连接引弧线。The arc pilot wire is usually a bare copper wire of 1mm 2 -10mm 2 , one end is connected to the tower grounding device, and the other end is connected to the arc pilot wire.
优选的,所述Step5接接地极线路模拟试验装置的控制方法为:Preferably, the control method of the Step5 grounding circuit simulation test device is:
Step5.1:输入保护电流整定值Iset和时间整定值Tset以及高度H1;Step5.1: Input protection current setting value Iset, time setting value Tset and height H1;
Step5.2;控制模块给动力模块信号,通过传动模块使得引弧线操作装置开始上升;Step5.2: The control module sends a signal to the power module, and through the transmission module, the arc-priming line operating device starts to rise;
Step5.3:判断引弧线操作装置上升的高度是否超过支撑用的绝缘支撑杆的高度;Step5.3: Judging whether the rising height of the arc-starting line operating device exceeds the height of the insulating support rod for support;
Step5.4:如果引弧线操作装置上升的高度超过支撑用的绝缘支撑杆的高度H1,则控制模块给动力模块下降信号,通过传动模块使得引弧线操作装置开始下降,回到初始位置,给出异常信号,试验装置位置不符合要求,试验结束。Step5.4: If the rising height of the arc pilot operating device exceeds the height H1 of the insulating support rod for support, the control module will give the power module a descending signal, and the transmission module will make the arc pilot operating device start to descend and return to the initial position. An abnormal signal is given, the position of the test device does not meet the requirements, and the test ends.
Step5.5:如果引弧线操作装置上升高度没有超过支撑用的绝缘支撑杆的高度,判断电流检测模块检测到的电流是是否小于0.2Iset,如果小于继续上升;Step5.5: If the rising height of the arc-striking wire operating device does not exceed the height of the insulating support rod for support, judge whether the current detected by the current detection module is less than 0.2Iset, and if it is less than continue to rise;
Step5.6:如果电流检测模块检测到的电流大于0.2Iset,则开始计时,并维持在该高度;Step5.6: If the current detected by the current detection module is greater than 0.2Iset, start timing and maintain it at this height;
Step5.7:如果计时超过Tset,则控制模块给动力模块下降信号,通过传动模块使得引弧线操作装置开始下降,回到初始位置,给出信号,试验正常,试验结束。Step5.7: If the timing exceeds Tset, the control module will give a lowering signal to the power module, through the transmission module, the arc-starting line operating device will start to drop, return to the initial position, and give a signal, the test is normal, and the test is over.
优选的,将导线引下线与支撑用的绝缘支撑杆以及直流接地极下线进行连接时可采用停电作业方式进行,也可采用带电作业方式进行。采用带电作业方式进行时,所述的耐张塔附近道路应满足10kV绝缘斗臂车作业要求。Preferably, the connection of the down conductor of the conductor to the insulating support rod for support and the down conductor of the DC grounding electrode can be performed by means of a power failure operation or by a live operation method. When the live operation method is used, the road near the tension tower should meet the operation requirements of the 10kV insulated bucket truck.
一种接地极线路故障模拟试验系统,包括接地极模拟试验装置和L型辅助试验装置;A grounding electrode line fault simulation test system, comprising a grounding electrode simulation test device and an L-shaped auxiliary test device;
所述L型辅助试验装置包括绝缘支撑杆和垂直导线,绝缘支撑杆一端与杆塔连接,另一端与垂直导线连接,垂直导线一端与绝缘支撑杆连接,另一端与接地极导线连接;The L-shaped auxiliary test device comprises an insulating support rod and a vertical wire, one end of the insulating support rod is connected with the tower, the other end is connected with the vertical wire, one end of the vertical wire is connected with the insulating support rod, and the other end is connected with the grounding electrode wire;
所述接地极模拟试验装置包括传动模块、动力模块、输入模块、控制模块、电流检测模块以及引弧线操作模块;The ground electrode simulation test device includes a transmission module, a power module, an input module, a control module, a current detection module and an arc-starting line operation module;
传动模块:用于把动力传输给引弧线操作模块,使得引弧线能从地面转换到L型辅助试验装置,实现接地故障的模拟;Transmission module: used to transmit power to the arc pilot line operation module, so that the arc pilot line can be converted from the ground to the L-shaped auxiliary test device to simulate ground faults;
动力模块:用于接受控制模块和输入模块的控制,给传动模块提供动力;Power module: used to accept the control of the control module and the input module, and provide power to the transmission module;
输入模块:用于接受试验输入相关信息,包括输入保护电流整定值Iset和时间整定值Tset以及高度H1;Input module: used to accept test input related information, including input protection current setting value Iset and time setting value Tset and height H1;
控制模块:用于控制引弧线操作模块,使得引弧线操作模块和直流接地极线路接触后位置相应的时间;Control module: used to control the arc-striking line operation module, so that the time corresponding to the position after the arc-striking line operation module and the DC grounding line are in contact;
引弧线操作模块:用于牵引引弧线至接地极线路,形成人工模拟接地,引弧线操作装置通常为绝缘的,一端连接引弧线,该端为S型铜片,通过螺栓与引弧线相连,另外一端连接动力装置;Arc pilot wire operation module: used to pull the arc pilot wire to the grounding electrode line to form artificial grounding. The arc pilot wire operating device is usually insulated, and one end is connected to the arc pilot wire. This end is an S-shaped copper sheet. The arcs are connected, and the other end is connected to the power unit;
电流检测模块,用于检测流过引弧线的电流,用于给控制模块判断是否实现故障的模拟。The current detection module is used to detect the current flowing through the arc-starting wire, and is used to judge whether to realize the simulation of the fault for the control module.
本发明的有益效果是:实现了直流接地极线路短路过程中时间和电流很难控制的问题,提高了接地极短路试验的成功率。The beneficial effects of the invention are as follows: the problem that time and current are difficult to control during the short circuit process of the DC ground electrode line is realized, and the success rate of the ground electrode short circuit test is improved.
附图说明Description of drawings
图1是本发明直接极线路故障系统结构示意图;1 is a schematic structural diagram of a direct pole line fault system of the present invention;
图2是本发明试验装置控制流程图。Fig. 2 is the control flow chart of the test device of the present invention.
图中:1-导线引下线,2-绝缘支撑杆,3-故障模拟引线,4-引弧线操作装置,5-S型铜片In the picture: 1- Conductor down lead, 2- Insulation support rod, 3- Fault simulation lead, 4- Arc-starting wire operating device, 5-S type copper sheet
具体实施方式Detailed ways
下面结合附图和具体实施方式,对本发明作进一步说明。The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
实施例1:如图1-2所示,一种接地极线路故障模拟试验方法,包括以下步骤:Embodiment 1: As shown in Figure 1-2, a grounding electrode line fault simulation test method includes the following steps:
Step1:根据调度要求的故障范围确定接地极线路故障模拟试验的杆塔N,通过杆塔N的塔图获取杆塔横档高度Ht和绝缘子串长度Lj,根据调度要求,模拟试验杆塔选择在换流站外第1基杆塔,为耐张塔,根据该基杆塔的图纸得到横档高度Ht为18m,绝缘子串长度Lj为0.73m。Step1: Determine the tower N of the grounding pole line fault simulation test according to the fault range required by the dispatching, obtain the tower rung height Ht and the insulator string length Lj through the tower map of the tower N, and select the tower for the simulation test outside the converter station according to the dispatching requirements. The first base tower is a tensile tower. According to the drawing of the base tower, the height Ht of the rungs is 18m, and the length Lj of the insulator string is 0.73m.
Step2:在模拟试验杆塔上安装辅助L型试验装置,支撑用的绝缘支撑杆2位置对地高度H1满足对地安全绝缘大于3m,根据第一步的杆塔图纸,选择为4m;在接地极线路上缠绕长度为0.5m,在绝缘支撑杆2上的缠绕长度为0.2m,导线引下线1的长度L3为4.7m,导线引下线1选择带透明外护套的铜线,截面积25mm2,L3=Ht-H1+Δ1+Δ2,Δ1为导线引下线1在接地极线路上缠绕的长度,Δ2为导线引下线1在绝缘支撑杆2上缠绕的长度,所述的导线引下线1通常为铜质材料,在安装辅助L型试验装置之前,在接地极线路上还安装了铝包带进行保护,宽度15cm。安装方式为停电安装。Step2: Install the auxiliary L-type test device on the simulated test tower. The height H1 of the insulating support rod 2 to the ground meets the ground safety insulation greater than 3m. According to the tower drawing in the first step, choose 4m; in the grounding pole line The length of the upper winding is 0.5m, the winding length on the insulating support rod 2 is 0.2m, the length L3 of the
Step3:安装接地极线路模拟试验装置;该接地极模拟试验装置包括:传动模块、动力模块、输入模块、控制模块、电流检测模块以及引弧线操作模块;Step3: Install a ground electrode circuit simulation test device; the ground electrode simulation test device includes: a transmission module, a power module, an input module, a control module, a current detection module and an arc-striking line operation module;
传动模块:用于把动力传输给引弧线操作模块,使得引弧线能从地面转换到L型辅助试验装置,实现接地故障的模拟;Transmission module: used to transmit power to the arc pilot line operation module, so that the arc pilot line can be converted from the ground to the L-shaped auxiliary test device to simulate ground faults;
动力模块:用于接受控制模块和输入模块的控制,给传动模块提供动力Power module: used to accept the control of the control module and the input module, and provide power to the transmission module
输入模块:用于接受试验输入相关信息,包括输入保护电流整定值Iset和时间整定值Tset以及高度H1;Input module: used to accept test input related information, including input protection current setting value Iset and time setting value Tset and height H1;
控制模块,用于控制引弧线操作模块,使得引弧线操作模块和直流接地极线路接触后位置相应的时间The control module is used to control the arc pilot operation module, so that the arc pilot operation module and the DC ground electrode line are in contact with the position corresponding to the time
引弧线操作模块,牵引引弧线至接地极线路,形成人工模拟接地,引弧线操作装置4通常为绝缘的,一端连接引弧线,该端为S型铜片5,通过螺栓与引弧线相连,另外一端连接动力装置。The arc-striking wire operation module pulls the arc-striking wire to the grounding electrode line to form artificial grounding. The arc-striking wire operating device 4 is usually insulated, and one end is connected to the arc-striking wire. The arcs are connected, and the other end is connected to the power unit.
电流检测模块,用于检测流过引弧线的电流,用于给控制模块判断是否实现故障的模拟;The current detection module is used to detect the current flowing through the arc-starting wire, and is used to judge whether to realize the simulation of the fault for the control module;
Step4:安装故障模拟引线3,故障模拟引线3的一端连接至杆塔接地装置,另外一端连接模拟试验装置的引弧线操作装置4;引弧线的长度L1,其中k1为安全系数,取值1.1之,将引弧线一端与杆塔接地装置连接,另一端与通过引弧线操作模块实现故障模拟;该引弧线截面积为2mm2,一端连接杆塔接地装置,另一端连接引弧线。Step4: Install the fault simulation lead 3, one end of the fault simulation lead 3 is connected to the tower grounding device, and the other end is connected to the arc-striking wire operating device 4 of the simulation test device; the length of the arc-striking wire L1, Among them, k1 is the safety factor, and the value is 1.1. One end of the arc pilot is connected to the tower grounding device, and the other end is connected to the arc pilot operation module to achieve fault simulation; the arc pilot line has a cross-sectional area of 2mm 2 and one end is connected to the tower grounding device. , and the other end is connected to the arc lead.
Step5:线路带电,启动接地极线路模拟试验装置,实现接地极线路接地故障模拟。Step 5: When the line is live, start the grounding electrode line simulation test device to realize the grounding fault simulation of the grounding electrode line.
在Step5启动接地极线路模拟试验装置过程中,还包括以下步骤In the process of starting the ground electrode circuit simulation test device in Step5, the following steps are also included
Step5.1:输入保护电流整定值Iset,1000A,时间整定值Tset,0.2S以及高度H1,4m;Step5.1: Input protection current setting value Iset, 1000A, time setting value Tset, 0.2S and height H1, 4m;
Step5.2;控制模块给动力模块信号,通过传动模块使得引弧线操作装置4开始上升;Step5.2: The control module sends a signal to the power module, and the arc-priming line operating device 4 starts to rise through the transmission module;
Step5.3:判断引弧线操作装置4上升的高度是否超过支撑用的绝缘支撑杆2的高度;Step5.3: Determine whether the height of the arc-starting wire operating device 4 exceeds the height of the insulating support rod 2 for support;
Step5.4:如果引弧线操作装置4上升的高度超过支撑用的绝缘支撑杆2的高度H1,则控制模块给动力模块下降信号,通过传动模块使得引弧线操作装置4开始下降,回到初始位置,给出异常信号,试验装置位置不符合要求,试验结束。Step5.4: If the rising height of the arc pilot operating device 4 exceeds the height H1 of the insulating support rod 2 for support, the control module will give the power module a descending signal, and the arc pilot operating device 4 will start to descend through the transmission module and return to The initial position, an abnormal signal is given, the position of the test device does not meet the requirements, and the test is over.
Step5.5:如果引弧线操作装置4上升高度没有超过支撑用的绝缘支撑杆2的高度,判断电流检测模块检测到的电流是是否小于0.2Iset,如果小于继续上升;Step5.5: If the rising height of the arc-striking wire operating device 4 does not exceed the height of the insulating support rod 2 for support, judge whether the current detected by the current detection module is less than 0.2Iset, and if it is less than continue to rise;
Step5.6:如果电流检测模块检测到的电流大于0.2Iset,则开始计时,并维持在该高度;Step5.6: If the current detected by the current detection module is greater than 0.2Iset, start timing and maintain it at this height;
Step5.4,如果计时超过Tset,则控制模块给动力模块下降信号,通过传动模块使得引弧线操作装置4开始下降,回到初始位置,给出信号,试验正常,试验结束。Step5.4, if the timing exceeds Tset, the control module will give a lowering signal to the power module, and through the transmission module, the arc pilot operating device 4 will start to lower, return to the initial position, and give a signal, the test is normal, and the test is over.
以上结合附图对本发明的具体实施方式作了详细说明,但是本发明并不限于上述实施方式,在本领域普通技术人员所具备的知识范围内,还可以在不脱离本发明宗旨的前提下作出各种变化。The specific embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and can also be made within the scope of knowledge possessed by those of ordinary skill in the art without departing from the spirit of the present invention. Various changes.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010408095.6A CN111426916B (en) | 2020-05-14 | 2020-05-14 | A method and system for simulating grounding pole line faults |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010408095.6A CN111426916B (en) | 2020-05-14 | 2020-05-14 | A method and system for simulating grounding pole line faults |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111426916A true CN111426916A (en) | 2020-07-17 |
CN111426916B CN111426916B (en) | 2021-06-25 |
Family
ID=71553376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010408095.6A Active CN111426916B (en) | 2020-05-14 | 2020-05-14 | A method and system for simulating grounding pole line faults |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111426916B (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012107908A (en) * | 2010-11-15 | 2012-06-07 | Chubu Electric Power Co Inc | Ground fault point display and inspection method therefor |
CN103487731A (en) * | 2013-09-18 | 2014-01-01 | 国家电网公司 | Insulator chain testing device |
CN203881867U (en) * | 2014-05-14 | 2014-10-15 | 国家电网公司 | A single-phase instantaneous artificial grounding short-circuit test device for transmission lines |
CN204964657U (en) * | 2015-09-29 | 2016-01-13 | 国网江西省电力科学研究院 | Test device suitable for research 10kV line gap ground connection form |
US20170025847A1 (en) * | 2011-03-04 | 2017-01-26 | Fairchild Semiconductor Corporation | Ground fault circuit interrupter (gfci) monitor |
CN106950456A (en) * | 2017-05-26 | 2017-07-14 | 云南电网有限责任公司电力科学研究院 | A kind of grounding net of transformer substation performance estimating method tested based on man-made short-circuit |
CN109061358A (en) * | 2018-10-24 | 2018-12-21 | 云南电网有限责任公司电力科学研究院 | A kind of single-phase transient earthing short-circuit test method and system of transmission line of electricity |
CN109061392A (en) * | 2018-09-13 | 2018-12-21 | 广东电网有限责任公司 | A kind of power transmission line phase fault experimental rig |
CN109254234A (en) * | 2018-11-22 | 2019-01-22 | 云南电网有限责任公司红河供电局 | A kind of trees-wire electrical discharge simulation experiment method |
CN109799413A (en) * | 2017-11-16 | 2019-05-24 | 李景禄 | A kind of single phase grounding current of electric power network and electric arc self arc time simulation test method |
-
2020
- 2020-05-14 CN CN202010408095.6A patent/CN111426916B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012107908A (en) * | 2010-11-15 | 2012-06-07 | Chubu Electric Power Co Inc | Ground fault point display and inspection method therefor |
US20170025847A1 (en) * | 2011-03-04 | 2017-01-26 | Fairchild Semiconductor Corporation | Ground fault circuit interrupter (gfci) monitor |
CN103487731A (en) * | 2013-09-18 | 2014-01-01 | 国家电网公司 | Insulator chain testing device |
CN203881867U (en) * | 2014-05-14 | 2014-10-15 | 国家电网公司 | A single-phase instantaneous artificial grounding short-circuit test device for transmission lines |
CN204964657U (en) * | 2015-09-29 | 2016-01-13 | 国网江西省电力科学研究院 | Test device suitable for research 10kV line gap ground connection form |
CN106950456A (en) * | 2017-05-26 | 2017-07-14 | 云南电网有限责任公司电力科学研究院 | A kind of grounding net of transformer substation performance estimating method tested based on man-made short-circuit |
CN109799413A (en) * | 2017-11-16 | 2019-05-24 | 李景禄 | A kind of single phase grounding current of electric power network and electric arc self arc time simulation test method |
CN109061392A (en) * | 2018-09-13 | 2018-12-21 | 广东电网有限责任公司 | A kind of power transmission line phase fault experimental rig |
CN109061358A (en) * | 2018-10-24 | 2018-12-21 | 云南电网有限责任公司电力科学研究院 | A kind of single-phase transient earthing short-circuit test method and system of transmission line of electricity |
CN109254234A (en) * | 2018-11-22 | 2019-01-22 | 云南电网有限责任公司红河供电局 | A kind of trees-wire electrical discharge simulation experiment method |
Non-Patent Citations (2)
Title |
---|
XUEXIN FAN: "Real-time Simulation of Grounding Fault Protection Method Used for Medium-voltage DC Power System Based on RT-LAB", 《PROCEEDINGS OF THE 37TH CHINESE CONTROL CONFERENCE》 * |
马御棠 等: "基于人工短路的配网跨步电压模拟测试与仿真", 《高压电器》 * |
Also Published As
Publication number | Publication date |
---|---|
CN111426916B (en) | 2021-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112611937A (en) | Power distribution network overhead line fault positioning system and positioning method based on unmanned aerial vehicle | |
CN110780353A (en) | Terminal lead lining falling-off detection device and method | |
CN203025306U (en) | Insulator fault accurate positioning system | |
CN108233183B (en) | Safety lightning rod grounding device | |
CN105811307B (en) | A kind of full-automatic crusing robot suitable for transmission circuit insulator string | |
CN111426916A (en) | A method and system for simulating grounding pole line faults | |
Lei et al. | Analysis of an accident caused by current mismatch in the grounding structure of a high-voltage single-core submarine cable | |
CN201413879Y (en) | A special lead wire for the test of lightning arrester for transmission cable pole and tower | |
Jianye et al. | Research on x-ray live inspection method for tensile clamps of transmission lines | |
JPS593090B2 (en) | The method of using the electric current and the electric pressure that were thoroughly examined in accordance with the electric current sensor | |
CN205304202U (en) | Interior high tension cable cross-connection case of establishing on-line monitoring device | |
CN105253035A (en) | Grounding short-circuiting apparatus of urban mass transit power supply system and grounding short-circuit method thereof | |
CN211086633U (en) | Terminal head enameling and falling detection device | |
CN201797066U (en) | A grounding wire capable of secondary electrical testing | |
CN209198030U (en) | Transmission line galloping electromagnetism excitation system | |
CN109167407B (en) | Overhead ground wire energy taking system | |
WO2019169951A1 (en) | Outdoor network access device, system and method for railway power supply system | |
CN210982698U (en) | A 500kV Zinc Oxide Surge Arrester Leakage Current No Ascent Test Device | |
CN109001606A (en) | The test model and application method of a kind of alternate electric discharge of transmission line simulation | |
CN106157783B (en) | The experimental model to fall off using electrocaloric effect control simulation ice-coating load | |
CN201616636U (en) | Intelligent ice-melting device for substation busbar gantry | |
CN109061358A (en) | A kind of single-phase transient earthing short-circuit test method and system of transmission line of electricity | |
CN209979771U (en) | A tree barrier test device for AC transmission lines | |
CN108430124A (en) | Series-parallel heating cable with self-testing function | |
CN210690637U (en) | A special short-circuit device for electrical testing of high-voltage transformers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |