Page 32 - 江苏全友电气有限公司

高压共箱封闭母线槽 高压共箱封闭母线槽

高压共箱封闭母线槽 高压共箱封闭母线槽
High voltage common-case Enclosed Busbar High voltage common-case Enclosed Busbar

适用范围 The serial bus ducts have the excellent short-circuit resistance. Due to it that they have the protection of aluminium
Application (or weak magnetic steel plate) shell, they can effectively weaken the structural heat caused by eddy current or
circulating current, reduce the temp. rise of shells, decrease the consumption of energy, raise the current-carrying
共箱封闭母线是我厂与国内多家科研机构共同开发的新型母线通道。适用于交流50~60Hz，额定电压3.6~40.5kV， capacity and lower the electrodynamic power.
额定电流400~3150A的供配电系统。 The bus duct is advanced in structure. The installing and service holes can be optionally set on the upper or lower
parts of the bus duct. To the indoor bus duct with a large current, there are ventilating louvers on the two sides and the
GFM serial co-box enclosed bus is a new type of bus channel which is commonly developed by this Factory and
upper part or the lower part of the shell to strengthen the heat radiation and reduce the temp. rise.
many scientific research institutions in China. It is suitable for the supplying and distributing systems of A.C. 50~60Hz. Adopt the double insulation and multipoint earth of the shell body to decrease the work capacity of maintenance
3.6~40.5KV voltage and 400~3150A rated current. obviously and raise the security remarkably.
In order to solve the negative influence upon the bus duct from the vibration caused by the transformer, motor,
and distributing cabinet in running. Adopt flexible connection or copper woven belt in the places between bus ducts
结构特点及技术参数 and them, add the rubber pad to the places between shells to lighten the vibration. To the body of bus duct, install the
Structural Characteristics and Technical Parameters vibration damper inside the bus duct system. To porcelain insulator and conductive bar, the elastic support is realized
to avoid the damage to the enclosed bus from the mechanical vibration caused by shell and the seismical waves.
■ 母线基本结构 Basic Structure of Bus

● 母线槽采用双层外壳，刚性好、强度大，承载能力强。
The bus duct with a double layer of shell is good in rigidity, high in strength and strong in carrying capacity.

母线槽的热传递主要靠热辐射，为了很好的利用热辐射，在母线槽外表面喷涂浅灰色油漆来减少对可见光的吸收；在
母线槽内表面喷涂黑色油漆来加强内部热量对外壳的辐射，同时防止电晕。
为了避免冬天户外、户内温度变化产生的偶然凝露现象，在穿墙处设置穿墙套管，使户外与户内母线槽完全隔离；垂
直安装时，法兰在内，水平安装时，法兰在外。
为了使母线槽的自振频率避开产生共振的频率范围（对于单条母线其共振频率范围为35-135Hz），并使作用于母线上
的电动力减小，合理地确定绝缘子间的跨距，选择绝缘子的型号、规格及强度等级。
为方便用户，可以根据用户需要，在发电机出口处以及励磁变压器的一次侧装入电流互感器，方便用户检测电流。
■ 结构特点 Structural Characteristics The heat of bus duct is mainly conducted by radiation. In order to make good use of heat radiation, the surface
该系列母线槽具有优良的抗短路性能，由于具有铝（或弱磁钢板）外壳的保护，能够有效地减弱涡流或环流引起的结 of bus duct will be painted light grey color to reduce the absorption from the visible light and the internal part of bus
duct will be painted black to strengthen the capacity to radiate the internal heat to the shell. At the same time they can
构发热，降低母线槽外壳温度，减小电能损耗，提高载流量，减轻电动力。
prevent the corona.
该系列母线槽结构先进，安装维修孔可任意设置于母线槽的上部或下部，对于大电流户内母线槽在壳体的两侧及下部 In order to avoid forming dew in winter due to the temp. difference between outdoors and indoors, the wall-
或上部，设有通风百页窗，来加强散热，降低温升。 penetrating bushing will be set in the through-wall place, so, the outdoor bus duct and indoor one will be separated. In
vertical installation, the flange will be set indoors and in horizontal installation, the flange will be set outdoors.
采用双重绝缘及壳体多点连接接地，使维护工作量明显减小，安全性能得到显著提高。
In order to make the free vibration frequency keep away the scope to produce the resonant frequency (to the
为了解决变压器、发电机及配电柜运行时产生的震动对母线槽的负面影响，在其与母线槽连接处采用软连接或铜编织 single strip bus the scope of resonant frequency: 35~135Hz) and make the electrodynamic force which acts on the bus
带，外壳之间加入橡胶垫来减小震动；对于母线槽本体，在系统中加装减震器，对瓷瓶和导电排实现弹性支持，较好地避 reduce, thus can rationally decide the span between the insulators, choose the proper type, specifieation and strength
grade of insulators
免了外壳产生的机械震动及地震波给封闭母线带来的破坏。
For customers' convenience, the current mutual-inductor can be set at the exit of generator and on primary side of
the exciting transfomer to make customers check the current easily.

29 BUSWAY SERIES BUSWAY SERIES 30