CN106300104B - Universal attachment device and its application of the power supply vehicle of meet an emergency with low pressure aerial condutor - Google Patents
Universal attachment device and its application of the power supply vehicle of meet an emergency with low pressure aerial condutor Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Abstract
应急电源车与低压架空导线的通用型连接装置，应急电源车和低压架空导线之间设置有一连接装置，该连接装置一端连通应急电源车，另一端连通低压架空导线，为这两者之间建立起带隔离保护功能的电路连接。连接装置包括绝缘横担组件和一开关柜，其中，应急电源车输出的应急电源先通过开关柜再通过与开关柜连接的登杆电缆接入到绝缘横担组件上，再通过该绝缘横担组件将登杆电缆与低压架空导线的电路连接。本发明适用于为变压器台区内低压架空导线沿线客户提供应急保、发电及配合带负荷更换变压器作业等领域，其连接可靠，供电效果稳定且安全性佳，且本发明还可配合带负荷更换变压器及跌落式熔断器等新颖作业项目的开展。
The universal connection device between the emergency power supply vehicle and the low-voltage overhead conductor. There is a connection device between the emergency power supply vehicle and the low-voltage overhead conductor. One end of the connection device is connected to the emergency power supply vehicle, and the other end is connected to the low-voltage overhead conductor. Circuit connection with isolation protection function. The connection device includes an insulating cross-arm assembly and a switch cabinet, wherein the emergency power output by the emergency power supply vehicle first passes through the switch cabinet and then connects to the insulating cross-arm assembly through the climbing pole cable connected with the switch cabinet, and then passes through the insulating cross-arm Assemblies connect pole cables to circuits of low voltage overhead conductors. The invention is suitable for providing emergency protection, power generation, and cooperation with on-load transformer replacement operations for customers along the low-voltage overhead conductors in the transformer station area. It has reliable connection, stable power supply effect and good safety, and the invention can also be used for on-load replacement. The development of novel operation projects such as transformers and drop-out fuses.
Description
技术领域technical field
本发明涉及一种电力设备维修、维护用辅助装置及其相关应用，尤其涉及一种应用于应急电源车与低压架空导线连接的通用型连接装置及其相关应用。The invention relates to an auxiliary device for repairing and maintaining electric equipment and related applications thereof, in particular to a general-purpose connecting device for connecting an emergency power supply vehicle with a low-voltage overhead wire and related applications.
背景技术Background technique
目前，在电力系统的电力设备维修、维护领域中经常使用到了一种特种车辆-应急电源车，该应急电源车能在维修、维护电力设备的断电情况下持续供电，防止区域性的断电，其作用不言而喻。At present, a special vehicle-emergency power supply vehicle is often used in the field of power equipment repair and maintenance in the power system. The emergency power supply vehicle can continue to supply power when the power equipment is repaired and maintained, and prevent regional power outages. , its role is self-evident.
现有技术下的应急电源车在正常使用过程中，发电机组输出末端通过集成式控制终端后预留应急电源车出线电缆接口，使用前先将应急电源车线缆绞盘中的电缆放出，与客户配电设备终端电源接入处连接，再将出线电缆与应急电源车出线电缆接口连接，属于点对点连接方式，供电负荷为单一的客户终端设备，这一属性继而决定了应急电源车只能为单一客户提供应急电源保障，其供电功能受到了极大的制约，而为何只能采取点对点连接供电方式，其主要的制约因素如下：During the normal use of the emergency power supply vehicle in the prior art, the output terminal of the generator set passes through the integrated control terminal and reserves the outlet cable interface of the emergency power supply vehicle. Connect the terminal power supply of the power distribution equipment, and then connect the outgoing cable to the outgoing cable interface of the emergency power supply vehicle, which belongs to the point-to-point connection mode, and the power supply load is a single customer terminal equipment. The customer provides emergency power supply protection, and its power supply function is greatly restricted. The main constraints are as follows:
(1)当配电网出现较大面积停电，例如，一变压器台区低压台区所属10kV架空导线停电检修或10KV跌落式熔断器故障或变压器故障时，沿线的低压客户都将失去电源供电，但应急电源车受到点对点供电方式的制约无法对沿线全部客户提供应急电力保障，而且杆变台区内的低压架空导线均架设在低压电杆之上，该低压电缆高度一般为9米，而应急电源车出线的登杆电缆为一种柔性电缆，其质量较重，不便直接登杆，此外出线电缆线径为185mm2，本身就无法与低压架空导线直接连接，所以无法实现应急电源车为该变压器台区低压出线的沿线客户提供整体应急电力保障；(1) When there is a large-scale power outage in the distribution network, for example, when the 10kV overhead wire belonging to the low-voltage station area of a transformer station area is powered off for maintenance or the 10KV drop-out fuse fails or the transformer fails, the low-voltage customers along the line will lose power supply. However, the emergency power supply vehicle is restricted by the point-to-point power supply mode and cannot provide emergency power guarantee for all customers along the line, and the low-voltage overhead conductors in the pole-changing area are all erected on the low-voltage poles, and the low-voltage cables are generally 9 meters high. The pole-mounting cable for the power supply vehicle is a kind of flexible cable, which is heavy and inconvenient to directly climb onto the pole. In addition, the diameter of the outgoing cable is 185mm 2 , which cannot be directly connected to the low-voltage overhead wire, so it is impossible to realize the emergency power supply vehicle. Provide overall emergency power protection for customers along the line of low-voltage outgoing lines in the transformer station area;
(2)在传统的配网带电作业项目类别中，更换配电变压器只能采取停电作业，其顺序为：(2) In the category of traditional distribution network live work projects, the replacement of distribution transformers can only take power outage operations, and the order is as follows:
1.必须先切断变压器低压侧负荷；1. The load on the low-voltage side of the transformer must be cut off first;
2.再断开高、低压侧开关、闸刀；2. Then disconnect the high and low voltage side switches and switch blades;
3.做好相应的安全措施后才能实施更换.3. The replacement can only be implemented after taking corresponding safety measures.
如果客户是使用专属变压器供电，属于单一客户，在变压器更换停电期间，尚可使用应急电源车采用点对点的供电方式为其提供应急电力保障，如果是杆变台区，杆变低压架空导线沿线有大量居民客户时，应急电源车就将无法采用点对点供电方式提供应急电力保障，同样，更换杆变台区10KV跌落式熔断器时也将造成低压沿线客户停电的问题。If the customer uses a dedicated transformer for power supply and belongs to a single customer, during the power outage period of transformer replacement, the emergency power supply vehicle can still be used to provide emergency power supply in a point-to-point power supply mode. When there are a large number of residential customers, the emergency power supply vehicle will not be able to provide emergency power protection by means of point-to-point power supply. Similarly, when replacing the 10KV drop-out fuse in the pole substation area, it will also cause power outages for customers along the low-voltage line.
综上所述，现有技术下的应急电源车与低压架空导线之间的供电方式存在着种种缺陷，而这也是迫切需要解决的问题，故现需要一种新型的连接装置，能有效地将应急电源车与低压架空导线连通，使其安全供电。。To sum up, there are various defects in the power supply mode between the emergency power supply vehicle and the low-voltage overhead wire in the prior art, and this is also a problem that needs to be solved urgently. Therefore, a new type of connection device is needed, which can effectively connect the The emergency power supply vehicle is connected with the low-voltage overhead wire to make it safe to supply power. .
发明内容Contents of the invention
为了解决上述问题，本发明提供了应急电源车与低压架空导线的通用型连接装置及其应用，设计出的通用型连接装置可适用于变压器台区内低压架空导线沿线客户应急保、发电及配合带负荷更换变压器作业等领域，该应急电源车与低压架空导线的通用型连接装置及其应用除了能实现应急电源车与低压架空导线快速连接、方便为低压架空导线沿线客户提供应急电力保障以外，还能配合带负荷更换变压器作业等新型电力作业项目的开展。In order to solve the above problems, the present invention provides a general-purpose connection device for emergency power supply vehicles and low-voltage overhead wires and its application. The designed general-purpose connection device can be used for emergency protection, power generation and coordination of customers along the low-voltage overhead wires in the transformer station area. In the field of transformer replacement with load and other fields, the universal connection device between the emergency power supply vehicle and the low-voltage overhead conductor and its application can not only realize the quick connection between the emergency power supply vehicle and the low-voltage overhead conductor, and facilitate the provision of emergency power for customers along the low-voltage overhead conductor. It can also cooperate with the development of new power operation projects such as transformer replacement with load.
本发明的应急电源车与低压架空导线的通用型连接装置及其应用的具体结构及应用方式如下所述：The specific structure and application method of the general-purpose connecting device of the emergency power supply vehicle and the low-voltage overhead wire and its application of the present invention are as follows:
应急电源车与低压架空导线的通用型连接装置，包括应急电源车、架设在电杆上的低压架空导线和登杆电缆，其特征在于：The general-purpose connecting device for emergency power supply vehicles and low-voltage overhead conductors, including emergency power supply vehicles, low-voltage overhead conductors erected on electric poles and climbing pole cables, is characterized in that:
所述的应急电源车和低压架空导线之间设置有一连接装置，该连接装置一端连通应急电源车，另一端连通低压架空导线，为这两者之间建立起带隔离保护功能的电路连接；A connection device is provided between the emergency power supply vehicle and the low-voltage overhead wire, one end of the connection device is connected to the emergency power supply vehicle, and the other end is connected to the low-voltage overhead wire, so as to establish a circuit connection with an isolation protection function between the two;
所述的连接装置包括绝缘横担组件和一开关柜，其中，应急电源车输出的应急电源先通过开关柜再通过与开关柜连接的登杆电缆接入到绝缘横担组件上，再通过该绝缘横担组件将登杆电缆与低压架空导线的电路连接。The connection device includes an insulating cross-arm assembly and a switch cabinet, wherein the emergency power output by the emergency power supply vehicle first passes through the switch cabinet and then connects to the insulating cross-arm assembly through the climbing pole cable connected with the switch cabinet, and then passes through the The insulated cross-arm assembly connects the pole cable to the circuit of the low-voltage overhead conductor.
根据本发明的应急电源车与低压架空导线的通用型连接装置，其特征在于，所述的绝缘横担组件包括绝缘横担、绝缘横担用链条锁扣、电缆固定锁扣、电缆终端用接线耳、搭接引线和楔型线夹，其中，绝缘横担共有5～7架，通过绝缘横担用链条锁扣环绕在电杆上并锁紧的方式将各个绝缘横担呈由上至下等间距设置的方法固定设置在电杆上，登杆电缆的一端连通开关柜，登杆电缆的缆身通过设置在绝缘横担上的各个电缆固定锁扣被固定在绝缘横担上，即，登杆电缆随着设置在电杆上的各个绝缘横担被引导至电杆上靠近低压架空导线的位置，且该登杆电缆的另一端设置有电缆终端用接线耳，通过该电缆终端用接线耳与搭接引线的一端连接，而搭接引线的另一端则通过楔型线夹与低压架空导线连接，形成电路通路，为与低压架空导线连接的待供电设备进行电力输送。According to the universal connection device between the emergency power supply vehicle and the low-voltage overhead wires of the present invention, the insulating cross-arm assembly includes an insulating cross-arm, a chain lock for the insulating cross-arm, a cable fixing lock, and a wiring for the cable terminal. Ears, lap lead wires and wedge-shaped clamps. Among them, there are 5 to 7 insulating cross-arms. The insulating cross-arms are wrapped around the poles with chain locks and locked. The method of equidistant setting is fixed on the pole, one end of the climbing pole cable is connected to the switch cabinet, and the cable body of the climbing pole cable is fixed on the insulating cross arm through the cable fixing locks arranged on the insulating cross arm, that is, The climbing pole cable is guided to the position on the pole close to the low-voltage overhead conductor along with each insulating cross arm arranged on the pole, and the other end of the climbing pole cable is provided with a cable terminal lug, through which the cable terminal is used for wiring The ear is connected to one end of the lap lead wire, while the other end of the lap lead wire is connected to the low-voltage overhead wire through a wedge-shaped clamp to form a circuit path for power transmission to the equipment to be powered connected with the low-voltage overhead wire.
该设计为本发明的应急电源车与低压架空导线的通用型连接装置的核心部分，本发明采用绝缘横担为基础，设计5～7架各自独立的电缆固定用的绝缘横担(根据标准电杆的高度，通常为5架即可)，在每路横担上设计4只电缆固定锁扣，用于固定登杆电缆，抵消其自重下滑力，由于登杆电缆的线径较大(185mm2)，无法直接与低压架空导线连接，所以采用了电缆终端用接线耳、搭接引线和楔型线夹，将登杆电缆的电缆出线终端处的电缆终端用接线耳与和低压架空导线同材质的导线作为过渡用的搭接引线连接，再用各种不同类型的楔型线夹将登杆电缆、搭接引线和低压架空导线连接，使其电路畅通。This design is the core part of the general-purpose connecting device of the emergency power supply vehicle and the low-voltage overhead wire of the present invention. The present invention adopts the insulating cross-arm as the basis, and designs 5 to 7 independent insulating cross-arms for fixing cables (according to the standard electrical The height of the pole, usually 5), and 4 cable fixing locks are designed on each cross-arm to fix the climbing pole cable and offset the sliding force of its own weight. Due to the large wire diameter of the climbing pole cable (185mm 2 ), it cannot be directly connected to the low-voltage overhead wire, so the cable terminal lug, lap lead wire and wedge-shaped clamp are used to connect the cable terminal lug at the cable outlet terminal of the climbing pole cable to the low-voltage overhead wire. The wires made of different materials are connected as transitional lap leads, and then various types of wedge-shaped clamps are used to connect the climbing pole cables, lap leads and low-voltage overhead wires to make the circuit unblocked.
根据本发明的应急电源车与低压架空导线的通用型连接装置，其特征在于所述的登杆电缆的数量与需要接入供电的低压架空导线的数量对应。The universal connection device between the emergency power supply vehicle and the low-voltage overhead wire according to the present invention is characterized in that the number of the climbing pole cables corresponds to the number of low-voltage overhead wires that need to be connected to power supply.
现有技术下的低压架空导线通常为4根，故登杆电缆及相应的连接部件均与其数量对应。There are usually four low-voltage overhead conductors in the prior art, so the number of climbing pole cables and corresponding connecting parts corresponds to the number.
根据本发明的应急电源车与低压架空导线的通用型连接装置，其特征在于所述的开关柜，从应急电源车与低压架空导线之间的保护方面考虑，该开关柜具体为一具备相应的电气保护功能的的开关柜，该开关柜采用断路器开关加隔离开关熔断器组的装置类型，柜内设置有断路器和刀闸设备，可对下级负荷的用电起通断控制作用，具有欠压保护、过载保护、短路保护等多项必备保护功能，用以控制两路电源的通断，且柜内还设置有多功能监测装置，该多功能监测装置与设置在柜门处的多功能显示仪配合，现场操作工人可直接对用户的负载情况实施监控，且柜内的进出线母排结构清楚，便于接线。According to the universal connection device between the emergency power supply vehicle and the low-voltage overhead conductors of the present invention, it is characterized in that the switchgear, considering the protection between the emergency power supply vehicle and the low-voltage overhead conductors, the switchgear is specifically a The switchgear with electrical protection function, the switchgear adopts the device type of circuit breaker switch plus isolating switch fuse group, and the circuit breaker and knife switch equipment are installed in the cabinet, which can control the power consumption of the lower load. Under-voltage protection, overload protection, short-circuit protection and many other necessary protection functions are used to control the on-off of the two-way power supply, and there is also a multi-functional monitoring device in the cabinet. With the cooperation of the multi-function display, the on-site operators can directly monitor the user's load, and the structure of the incoming and outgoing busbars in the cabinet is clear, which is convenient for wiring.
应急电源车与低压架空导线的通用型连接装置的应用，基于上述的应急电源车与低压架空导线的通用型连接装置，其具体步骤如下：The application of the universal connection device between the emergency power supply vehicle and the low-voltage overhead conductor is based on the above-mentioned universal connection device between the emergency power supply vehicle and the low-voltage overhead conductor, and the specific steps are as follows:
1.确认应急电源车、低压架空导线与连接装置均为正常工作状态，确保现场安全；1. Confirm that the emergency power supply vehicle, low-voltage overhead wires and connecting devices are in normal working condition to ensure site safety;
2.将开关柜的断路器和刀闸设备断开，然后将登杆电缆的接线端与开关柜连接；2. Disconnect the circuit breaker and knife switch equipment of the switch cabinet, and then connect the terminal of the climbing rod cable to the switch cabinet;
3.操作工人将绝缘横担组件的绝缘横担通过绝缘横担用链条锁扣顺序安装至电杆上，绝缘横担的数量为5～7架，然后将登杆电缆从下往上的方式通过绝缘横担上设置的电缆固定锁扣按顺序安装至各个绝缘横担上，直至登杆电缆的出线端靠近低压架空导线；3. The operator installs the insulating cross-arm of the insulating cross-arm assembly on the pole through the chain lock of the insulating cross-arm in sequence. Install the cable fixing locks on the insulating cross-arms in order to each insulating cross-arm until the outlet end of the climbing pole cable is close to the low-voltage overhead conductor;
4.电缆的出线端设置有电缆终端用接线耳，通过该电缆终端用接线耳与搭接引线的一端连接，而搭接引线的另一端则通过楔型线夹与低压架空导线连接，形成电路通路；4. The outlet end of the cable is provided with a cable terminal lug, through which the cable terminal lug is connected to one end of the lap lead wire, and the other end of the lap lead wire is connected to the low-voltage overhead wire through a wedge-shaped clamp to form a circuit path;
5.将开关柜与应急电源车连通，确认各组件安装无误后，开启应急电源供电功能，并闭合开关柜的断路器和刀闸设备，使得应急电源车通过登杆电缆对低压架空导线进行供电，即使得与低压架空导线连接的待供电设备通电；5. Connect the switch cabinet with the emergency power supply vehicle, and after confirming that all components are installed correctly, turn on the emergency power supply function, and close the circuit breaker and knife switch equipment of the switch cabinet, so that the emergency power supply vehicle can supply power to the low-voltage overhead conductor through the climbing pole cable , that is, to energize the equipment to be powered connected to the low-voltage overhead conductor;
6.最后，操作人员通过观察开关柜设置的与多功能监测装置信号连接的开关柜柜面上设置的多功能显示仪获得各种供电负载情况，进行实时监控，防止供电不稳或其他事故的发生。6. Finally, the operator obtains various power supply load conditions by observing the multifunctional display on the switchgear cabinet that is connected to the signal connection of the multifunctional monitoring device, and performs real-time monitoring to prevent unstable power supply or other accidents. occur.
使用本发明的应急电源车与低压架空导线的通用型连接装置及其应用获得了如下有益效果：Use the universal connection device of the emergency power supply vehicle of the present invention and the low-voltage overhead wire and its application to obtain the following beneficial effects:
1.本发明的应急电源车与低压架空导线的通用型连接装置及其应用,适用于为变压器台区内低压架空导线沿线客户提供应急保、发电及配合带负荷更换变压器作业等领域，其连接可靠，供电效果稳定且安全性佳；1. The general-purpose connection device and application of the emergency power supply vehicle and the low-voltage overhead wire of the present invention are suitable for providing emergency protection, power generation, and cooperation with load replacement transformer operations for customers along the low-voltage overhead wire in the transformer station area. Reliable, stable power supply and good safety;
2.本发明的应急电源车与低压架空导线的通用型连接装置及其应用，在实现应急电源车与低压架空导线连接、方便为低压架空导线沿线客户提供应急电力保障外，还可配合带负荷更换变压器及跌落式熔断器等新颖作业项目的开展。2. The general-purpose connection device and application of the emergency power supply vehicle and the low-voltage overhead wire of the present invention, in addition to realizing the connection between the emergency power supply vehicle and the low-voltage overhead wire, and conveniently providing emergency power protection for customers along the low-voltage overhead wire, it can also cooperate with the load The development of novel operation projects such as replacing transformers and drop-out fuses.
附图说明Description of drawings
图1为本发明的应急电源车与低压架空导线的通用型连接装置及其应用的装置部分的具体结构示意图。Fig. 1 is a specific structural schematic diagram of the universal connection device between the emergency power supply vehicle and the low-voltage overhead wire and its application device of the present invention.
图中：1-应急电源车，2-电杆，3-低压架空导线，4-登杆电缆，A-连接装置，A1-绝缘横担组件，A2-开关柜，，A11-绝缘横担，A12-绝缘横担用链条锁扣，A13-电缆固定锁扣，A14-电缆终端用接线耳，A15-搭接引线，A16-楔型线夹，A21-断路器和刀闸设备，A22-多功能显示仪。In the figure: 1-emergency power supply vehicle, 2-electric pole, 3-low voltage overhead wire, 4-climbing pole cable, A-connecting device, A1-insulated cross-arm assembly, A2-switch cabinet, A11-insulated cross-arm, A12-chain lock for insulated cross arm, A13-cable fixed lock, A14-lug for cable terminal, A15-lap lead, A16-wedge clamp, A21-circuit breaker and knife switch equipment, A22-multiple Function display instrument.
具体实施方式Detailed ways
下面结合附图和实施例对本发明的本发明的应急电源车与低压架空导线的通用型连接装置及其应用做进一步的描述。The general connection device between the emergency power supply vehicle and the low-voltage overhead wire of the present invention and its application will be further described below in conjunction with the accompanying drawings and embodiments.
实施例Example
如图1所示，应急电源车与低压架空导线的通用型连接装置，包括应急电源车1、架设在电杆2上的低压架空导线3和登杆电缆4，应急电源车和低压架空导线之间设置有一连接装置，该连接装置一端连通应急电源车，另一端连通低压架空导线，为这两者之间建立起带隔离保护功能的电路连接；As shown in Figure 1, the general-purpose connection device between the emergency power supply vehicle and the low-voltage overhead conductor includes the emergency power supply vehicle 1, the low-voltage overhead conductor 3 and the climbing pole cable 4 erected on the pole 2, and the connection between the emergency power supply vehicle and the low-voltage overhead conductor. There is a connection device between them, one end of the connection device is connected to the emergency power supply vehicle, and the other end is connected to the low-voltage overhead wire, so as to establish a circuit connection with isolation protection function between the two;
连接装置A包括绝缘横担组件A1和一开关柜A2，其中，应急电源车1输出的应急电源先通过开关柜再通过与开关柜连接的登杆电缆4接入到绝缘横担组件上，再通过该绝缘横担组件将登杆电缆与低压架空导线3的电路连接。The connection device A includes an insulating cross-arm assembly A1 and a switch cabinet A2, wherein the emergency power output by the emergency power supply vehicle 1 first passes through the switch cabinet and then connects to the insulating cross-arm assembly through the climbing pole cable 4 connected to the switch cabinet, and then The pole cable is connected to the circuit of the low-voltage overhead conductor 3 through the insulated cross-arm assembly.
绝缘横担组件A1包括绝缘横担A11、绝缘横担用链条锁扣A12、电缆固定锁扣A13、电缆终端用接线耳A14、搭接引线A15和楔型线夹A16，其中，绝缘横担共有5～7架，通过绝缘横担用链条锁扣环绕在电杆2上并锁紧的方式将各个绝缘横担呈由上至下等间距设置的方法固定设置在电杆上，登杆电缆4的一端连通开关柜A2，登杆电缆的缆身通过设置在绝缘横担上的各个电缆固定锁扣被固定在绝缘横担上，即，登杆电缆随着设置在电杆上的各个绝缘横担被引导至电杆上靠近低压架空导线3的位置，且该登杆电缆的另一端设置有电缆终端用接线耳，通过该电缆终端用接线耳与搭接引线的一端连接，而搭接引线的另一端则通过楔型线夹与低压架空导线连接，形成电路通路，为与低压架空导线连接的待供电设备(图中未示出，下同)进行电力输送。The insulating cross-arm assembly A1 includes the insulating cross-arm A11, the chain lock A12 for the insulating cross-arm, the cable fixing lock A13, the lug A14 for the cable terminal, the lap lead wire A15 and the wedge-shaped clamp A16, among which the insulating cross-arm has a total of 5 to 7 racks, the insulated cross-arms are fixed on the poles with chain locks around the poles 2 and locked, and the insulating cross-arms are arranged at equal intervals from top to bottom on the poles. One end of the pole is connected to the switch cabinet A2, and the cable body of the climbing pole cable is fixed on the insulating cross arm through the cable fixing locks arranged on the insulating cross arm, that is, the climbing pole cable The pole is guided to a position close to the low-voltage overhead conductor 3 on the pole, and the other end of the pole-mounting cable is provided with a cable terminal lug, through which the cable terminal is connected to one end of the lap lead wire with the lug, and the lap lead wire The other end of the wire is connected to the low-voltage overhead wire through a wedge-shaped clamp to form a circuit path for power transmission to the equipment to be powered (not shown in the figure, the same below) connected to the low-voltage overhead wire.
本发明采用绝缘横担为基础，设计5～7架各自独立的电缆固定用的绝缘横担(根据标准电杆的高度，通常为5架即可)，在每路横担上设计4只电缆固定锁扣，用于固定登杆电缆，抵消其自重下滑力，由于登杆电缆的线径较大(185mm2)，无法直接与低压架空导线连接，所以采用了电缆终端用接线耳、搭接引线和楔型线夹，将登杆电缆的电缆出线终端处的电缆终端用接线耳与和低压架空导线同材质的导线作为过渡用的搭接引线连接，再用各种不同类型的楔型线夹将登杆电缆、搭接引线和低压架空导线连接，使其电路畅通。The present invention adopts the insulating cross-arm as the basis, and designs 5 to 7 independent insulating cross-arms for cable fixing (according to the height of the standard pole, usually 5 frames are sufficient), and designs 4 cables on each cross-arm. The fixed lock is used to fix the climbing pole cable to offset the sliding force of its own weight. Due to the large wire diameter of the climbing pole cable (185mm 2 ), it cannot be directly connected to the low-voltage overhead wire, so the cable terminal lug and lap joint are used. Lead wire and wedge-shaped clamp, connect the cable terminal at the cable outlet terminal of the climbing pole cable with the lug and the wire made of the same material as the low-voltage overhead wire as a transitional lap lead, and then use various types of wedge-shaped wires The clip connects the climbing pole cable, the bonding lead and the low-voltage overhead conductor to make the circuit unblocked.
登杆电缆4的数量与需要接入供电的低压架空导线的数量对应。The quantity of climbing rod cables 4 corresponds to the quantity of low-voltage overhead wires that need to be connected to power supply.
现有技术下的低压架空导线通常为4根，故登杆电缆及相应的连接部件均与其数量对应。There are usually four low-voltage overhead conductors in the prior art, so the number of climbing pole cables and corresponding connecting parts corresponds to the number.
开关柜A2，从应急电源车与低压架空导线之间的保护方面考虑，该开关柜具体为一具备相应的电气保护功能的的开关柜，该开关柜采用断路器开关加隔离开关熔断器组的装置类型，柜内设置有断路器和刀闸设备A21，可对下级负荷的用电起通断控制作用，具有欠压保护、过载保护、短路保护等多项必备保护功能，用以控制两路电源的通断，且柜内还设置有多功能监测装置，该多功能监测装置与设置在柜门处的多功能显示仪A22配合，现场操作工人可直接对用户的负载情况实施监控，且柜内的进出线母排结构清楚，便于接线。Switchgear A2, considering the protection between the emergency power supply vehicle and the low-voltage overhead wire, the switchgear is specifically a switchgear with corresponding electrical protection functions, and the switchgear adopts a circuit breaker switch plus a disconnector fuse group Device type, there are circuit breakers and knife switch equipment A21 in the cabinet, which can control the power consumption of the lower loads. The on-off of the power supply, and there is a multi-function monitoring device in the cabinet. The multi-function monitoring device cooperates with the multi-function display instrument A22 installed on the cabinet door. The on-site operators can directly monitor the user's load condition, and The structure of the incoming and outgoing busbars in the cabinet is clear, which is convenient for wiring.
应急电源车与低压架空导线的通用型连接装置的应用，基于上述的应急电源车与低压架空导线的通用型连接装置，其具体步骤如下：The application of the universal connection device between the emergency power supply vehicle and the low-voltage overhead conductor is based on the above-mentioned universal connection device between the emergency power supply vehicle and the low-voltage overhead conductor, and the specific steps are as follows:
1.确认应急电源车1、低压架空导线3与连接装置A均为正常工作状态，确保现场安全1. Confirm that the emergency power supply vehicle 1, the low-voltage overhead wire 3 and the connecting device A are in normal working condition to ensure site safety
2.将开关柜A2的断路器和刀闸设备断开，然后将登杆电缆4的接线端与开关柜连接；2. Disconnect the circuit breaker and switch device of switch cabinet A2, and then connect the terminal of climbing rod cable 4 to the switch cabinet;
3.操作工人将绝缘横担组件A1的绝缘横担A11通过绝缘横担用链条锁扣A12顺序安装至电杆2上，绝缘横担的数量为5～7架(本实施例中为标准电杆，5架即可)，然后将登杆电缆4从下往上的方式通过绝缘横担上设置的电缆固定锁扣A13(本实施例中为4个)按顺序安装至各个绝缘横担上，直至登杆电缆的出线端靠近低压架空导线3；3. The operator installs the insulating cross-arm A11 of the insulating cross-arm assembly A1 on the electric pole 2 sequentially through the chain lock A12 of the insulating cross-arm, and the number of insulating cross-arms is 5 to 7 (standard electric rods, 5 racks are enough), and then install the climbing rod cables 4 from bottom to top through the cable fixing locks A13 (4 in this embodiment) arranged on the insulating cross-arms to each insulating cross-arm in order , until the outlet end of the climbing pole cable is close to the low-voltage overhead conductor 3;
4.电缆的出线端设置有电缆终端用接线耳A14，通过该电缆终端用接线耳与搭接引线A15的一端连接，而搭接引线的另一端则通过楔型线夹A16与低压架空导线3连接，形成电路通路；4. The outlet end of the cable is provided with a cable terminal lug A14, through which the cable terminal lug is connected to one end of the lap lead wire A15, and the other end of the lap lead wire is connected to the low-voltage overhead conductor 3 through the wedge-shaped clamp A16. Connect to form a circuit path;
5.将开关柜A2与应急电源车1连通，确认各组件安装无误后，开启应急电源供电功能，并闭合开关柜的断路器和刀闸设备A21，使得应急电源车通过登杆电缆4对低压架空导线3进行供电，即使得与低压架空导线连接的待供电设备通电；5. Connect the switch cabinet A2 with the emergency power supply vehicle 1. After confirming that all components are installed correctly, turn on the emergency power supply function, and close the circuit breaker and knife switch device A21 of the switch cabinet, so that the emergency power supply vehicle passes through the climbing pole cable 4 pairs of low-voltage The overhead wire 3 supplies power, that is, the equipment to be powered connected with the low-voltage overhead wire is energized;
6.最后，操作人员通过观察开关柜A2设置的与多功能监测装置信号连接的开关柜柜面上设置的多功能显示仪A22获得各种供电负载情况，进行实时监控，防止供电不稳或其他事故的发生。6. Finally, the operator obtains various power supply load conditions by observing the multi-function display instrument A22 set on the switch cabinet A2 and connected to the signal of the multi-function monitoring device, and performs real-time monitoring to prevent power supply instability or other Accidents happen.
本发明的应急电源车与低压架空导线的通用型连接装置及其应用,适用于为变压器台区内低压架空导线沿线客户提供应急保、发电及配合带负荷更换变压器作业等领域，其连接可靠，供电效果稳定且安全性佳；本发明在实现应急电源车与低压架空导线连接、方便为低压架空导线沿线客户提供应急电力保障外，还可配合带负荷更换变压器及跌落式熔断器等新颖作业项目的开展。The general-purpose connection device between the emergency power supply vehicle and the low-voltage overhead wire and its application in the present invention are suitable for providing emergency protection, power generation, and cooperation with on-load transformer replacement operations for customers along the low-voltage overhead wire in the transformer station area, and the connection is reliable. The power supply effect is stable and the safety is good; the invention not only realizes the connection between the emergency power supply vehicle and the low-voltage overhead wire, and provides emergency power protection for customers along the low-voltage overhead wire, but also cooperates with novel operation items such as the replacement of transformers and drop-out fuses with load development.
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| CN109066469A (en) * | 2018-09-17 | 2018-12-21 | 广东电网有限责任公司 | A kind of generator car Quick access device for distribution network overhead line |
| CN110829428A (en) * | 2019-11-27 | 2020-02-21 | 广州供电局有限公司 | Low-voltage quick access communication device and power supply network |
| CN111817203A (en) * | 2020-07-08 | 2020-10-23 | 国网福建省电力有限公司宁德供电公司 | Distribution network high voltage emergency interface and its working method |
| CN112332281A (en) * | 2020-11-16 | 2021-02-05 | 国网江苏省电力有限公司南通供电分公司 | Control method for replacing distribution box of low-voltage distribution area without power outage based on mobile energy storage |
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