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开关柜的安装和运行维护分析

发布日期:2018-01-19 作者:贵州开关柜 点击:

开关柜的安装和运行维护分析

Analysis of the installation and operation and maintenance of the switchgear

贵州开关柜

1.高压开关柜的安装

Installation of 1. high voltage switchgear

高压开关柜安装的主要方面有:柜体就位和并柜、主母线之间及引下母线之连接、电缆头制作和上位、二次电缆引接及二次端子排接线等。

The main aspects are: high voltage switch cabinet is installed between the cabinet and cabinet, and in the main bus and bus connections, pull the cable head and the two times, making cable connection and two terminal etc..

施工过程的注意事项有:

The precautions for the construction process are as follows:

(1)柜体不应受碰撞,以免骨架变形,或者薄面板碰凹,表面涂层受撞伤或擦伤,影响外观。

(1) the cabinet should not be affected by the collision, so as to avoid the skeleton deformation, or the thin panel is concave, the surface coating is bruised or bruised, affecting the appearance.

(2)并排柜体的安装基础槽钢要求水平(每米允许误差≯lmm)。

(2) installed side by side cabinet level requirements based channel (per meter error using LMM).

(3)手车柜基础高度的高低要考虑手车进出方便,地坪上不得形成台阶。

(3) the height of the base of the hand cabinets should be taken into account by the convenience of the hand and carriage, and the terrace shall not be formed on the floor.

(4)运输、安装全过程要切实保护真空灭弧室,特别是装设柜顶的主母线时,须用硬板盖住真空开关顶部,以防工具、螺丝掉下砸伤灭弧室。

(4) the transportation and installation process to protect the vacuum interrupter, especially installed on top of the cabinet main line, must use the hard cover at the top of the vacuum switch, to prevent tools from falling, screw interrupter.

(5)自配主母线时须做到:

(5) from the main bus to do with:

a.与电器元件相连的母线,接头须自然吻合,不能硬拉,以免电器产品导电体移位、变形,影响通流能力。

A. and electrical components connected to the busbar, the joint must be naturally anastomosed, can not hard pull, so as to avoid electrical conductivity of electrical products, deformation, influence flow capacity.

b.电流较大时,接头须搪锡。

When the B. current is large, the joint must be stannic.

c.探铜与探铜的导电接触面须涂敷防护剂(导电青、凡土林等),以达防氧化防潮目的。

C. on copper and copper on the conductive contact surface to be coated with protective agent (conductive green, petrolatum, etc.) in order to prevent oxidation to moisture.

(6)柜体二次引线电缆须按指定路径敷设,不得阻碍运动件的活动,或者日后维护检测时被踩伤。柜体安装工程完成后,按照电力部有关规程进行交接试验,合格后办理验收移交手续,即可

(6) the two wire cables are required for the specified path, not hinder the motion of the activities, or inspection and maintenance after being trampled on. After the completion of the installation of the cabinet, the handover test shall be carried out according to the relevant regulations of the Ministry of electric power, and the transfer procedures shall be handled after the acceptance of the approval.


投入运行。

Put into operation.

2.高压开关柜的运行维护

Operation and maintenance of 2. high voltage switchgear

(1)配电间应防潮、防尘、防止小动物钻入。

(1) the distribution room should be moisture-proof, dustproof, and prevent small animals from drilling into.

(2)所有金属器件应防锈蚀(涂上情漆或色漆),运动部件应注意润滑,检查螺钉有否松动,积灰须及时清除。

(2) all metal devices should be anticorrosive (painted or painted), and the moving parts should be lubricated, check the loosening of the screws, and remove the ash in time.

(3)观察各元件的状态,是否有过热变色,发出响声,接触不良等现象。

(3) observe the state of each element, whether there is a phenomenon of overheating and discoloration, the sound of the sound, and the bad contact.

(4)对于真空断路器:

(4) for vacuum circuit breakers:

a.有条件时应进行工频耐压(只能加42KV),既可间接检验真空度,又可作电压老练,很有好处。

When the A. is conditional, the power frequency pressure (only 42KV) can be carried out. It can not only indirectly test the vacuum degree, but also can be used as the voltage practice. It is very good.

b.对于玻璃泡灭弧室,应观察其内部金属表面有否发乌,有无辉光放电等现象。

B. for the glass bubble extinguishing chamber, it should be observed whether the surface of the inner metal is black or not, and there is no glow discharge.

c.更换灭弧室时,应将导电杆卡住,不能让波纹管承受扭转力矩。

When C. changes the arc extinguishing chamber, the conductive rod should be stuck and the bellows can not bear the torsional moment.

d.合闸回路保险丝规格不能用得过大,保险丝的熔化特性须可靠。

The fuse specification of the D. closing circuit can not be used too much, and the fuse characteristics of the fuse must be reliable.

e.贵州开关柜认为合闸失灵时,须检查故障:电气方面可能是合闸电源电压过低(压降太大或电源容量不够),合闸线圈受潮致使匝间短路,熔丝已断;机构方面可能是合闸锁扣扣接量过小,辅助开关调得

When the E. fails, it must check the malfunction. The electrical side may be the closing power supply voltage is too low (the pressure drop is too large or the power capacity is not enough), the closing coil is dampened, resulting in inter turn short circuit and the fuse has been broken.


角度不好,断电过早。

The angle is not good, the power is broken too early.

f.分闸失灵时,须检查故障:电气方面可能是电源电压过低,转换开关接触不良,分闸回路断线;机械方面可能是分闸线圈行程未调好,铁芯被卡滞,锁扣扣接量过大,螺丝松脱。

When the f. is broken down, it must check the malfunction. It is probably that the power supply voltage is too low, the switch is not in good contact and the circuit breaker is broken. The mechanical side may be that the trip of the trip coil has not been adjusted well, the core is stuck, the fastener quantity is too large, and the screw is loose.

g.辅助开关接点转换时刻须精心调整,切换过早可能不到底,切换过慢会使合闸线圈长时带电而烧毁。正确位置是在低电压下合闸,刚能合上。(信息来源:http://www.diangon.com)

The transfer time of the g. auxiliary switch must be carefully adjusted, the switching too early may not be in the end, and the switching too slow will make the closing coil live and burn out for long time. The correct position is to close at low voltage and just fit.  (information source: http://www.diangon.com)

h.经常检查拉动辅助开关的传动件连接螺丝有否松动,必要时可用紧固胶粘住。

H. often checks whether the connecting screw of the driving part of the pull auxiliary switch is loose or not, and the fastening glue can be used when necessary.

i.注意导电夹的夹紧连接。

I. pays attention to the clamping connection of the conductive clamp.

(5)对于隔离开关:

(5) for the isolation switch:

a.注意刀片、触头有无扭歪,合闸时是否合闸到位和接触良好。

A. blade, contact any distortedness, whether in place and good contact closing closing.

b.分闸时断口距离是否≥150mm。

B. gate fracture distance is greater than or equal to 150mm.

c.支持及推杆瓷瓶有否开裂或胶装件松动。

C. support and a push rod porcelain whether cracking or cementing loosening.

d.其操动机构与断路器的联锁装置是否正常、可靠。

D. the interlocking device of the operating mechanism and the circuit breaker is normal and reliable.

e.打开隔离开关检修柜内时,为安全起见,须在隔离断口间插入干净的绝缘插板。

When E. opens the isolation switch overhaul cabinet, a clean insulating board must be inserted between the isolation break for safety.

f.隔离开关操合时,往往需利用冲击合闸力。

When operating F. isolating switch, often need to use the impact of closing force.

(6)对于电流互感器:

(6) for the current transformer:

a.注意接头有无过热,有天响声和异味。

A. notice whether the joint is overheated, sound and smell.

b.绝缘部分有无开裂或放电。

B. insulation part has no crack or discharge.

c.引线螺丝有无松动,绝不能使之开路,以免感生高电压,并使磁性能劣化。

C. lead screw is not loose, can never make it open, so as to avoid high voltage, and make the magnetic energy worse.

3.高压开关柜订货时需提供的资料

3. information to be provided when ordering high voltage switchgear

(1)一次结线系统图。

(1) the first line system diagram.

(2)一次方案排列图,一次元件的详细规格及数量,主母线和引下母排的规格、材质、根数。

(2) the arrangement of a program, a component specifications and quantity of the main bus and guided bus specification, material, root number.

(3)开关拒的排列图及平面布置图。

(3) the arrangement diagram of the switch and the layout of the plane.

(4)二次回路原理图,或标准二次方案编号。端子排列图如果用户提供,则按图施工;如未提供,则生产厂提供施工图。

(4) the two circuit schematic diagram, or the standard two program number. Terminal arrangement, if provided by the user, is constructed according to the diagram; if not provided, the factory provides the construction drawings.

(5)二次回路特殊元件、进口元件的型号、规格、数量(提供使用说明书)。

(5) the type, specification and quantity of the special components of the two circuit and the imported components (providing the instructions for use).

(6)如需特殊母线桥,请提供外形尺寸及跨距,支撑方法,共同协商。

(6) if special bus bridge is needed, please provide the shape and span, support method, and consult together.

(7)五防联锁方面的特殊要求。

(7) five special requirements for anti interlocking.

(8)备品备件名称及数量(如灭弧室、手车摇把等)。

(8) the name and quantity of spare parts (such as the interrupter, hand crank car etc.).

(9)其他要求,例如柜体表面被复层的种类和颜色;紧急分闸手柄是否需要;其他特殊要求。

(9) other requirements, such as the type and color of the surface of the cabinet, and the need for the emergency switch handle; other special requirements.


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