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油浸式负荷开关（四工位）

本开关应用于组合式变压器，负荷开关有四位置和二位置开关，四位置开关按结构形式不同可分为丁型、V型和}型。开关安装在组合变压器的箱壁上，以变压器油为绝缘和灭弧介质，适用于频率50日z，设备最高电压12kV, 40.5kV，额定电流315A, 630A三相供电线路，在终端供电或环网供电系统中，作为工业、民用电能的控制和保护装置。在操纵杆的作用下，能使开关在组合式变压器带负荷状态下，作三相联动关、合电源或改变供电方式。

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BFY型油浸式负荷开关
BFY type oil-immersed load break switch

This switch is used for compounded type transformer. It is classified into four-position and two-position products. Thefour-position switch is divided into“T”type、“V”type and“I”.The switch is installed on the tank well of compoundedtransformer, the transformer oil is used for its insulating and are eliminated material. It is suitable for three phase power supply circuit with rated frequency 50Hz, highest voltage for equipment 1 2kV、40.5kV, rated current 315 A and 630A. In the radialfeed or loop feed supply system, it is used as controlling and protective device in the industry civil used electric energy. When functioned by operating pole, the switch can drive three phase linkage cut and close power resource or transfer supply method.

负荷开关型号含义
Type of load break switch

各电压等级的负荷开关，在变压器油中应承受下表规定的试验电压
Voltage class of load switch should withstand the test voltage in transformer oil shown in following table

BFY3I两工位负荷开关外形图
Overall drawing for two-position load break switch

两工位开关箱壁开孔及焊装图
Sketch diagram for making hole on the two-position tank wall and welding

两工位负荷开关带信号安装图及型号
Two-position load switch with signal installation diagram and its type

二工位负荷开关带信号接点派生代号说明
Derived code for two position load switch with signal contact

如需35kV两工位负荷开关独立接线两开两闭型号为BFY3I2-35/630-20- II K2
If 35kV two-position load switch with independent wiring is needed The type of BFY312-35/630-20- II K2 has two open and two close working position.

开关外形安装尺寸图(电动操作在开关型号后加D).如35kV两工位电动操作型号为BFY312-35/630-20-D:
Outline installation drawing for load switch《皇冠hg6668欢迎您》,BFY312-35/630-20- II -D is of 35kV electric -driven operation type.

两工位负荷开关带电动操作机构FD-1型，其结构紧凑可靠。安装简单方便，具有明显的分合状态指示。与控制器配合既可电动操作，又可直接手动操作.操作转换灵活、方便。
Two-position load switch with electric-driven operating mechanism is called type FD-1 .The product is compact and reliable, and easy to install, the open and close statue is marked very clearly，it is suitable for automatic and manual operation， the control mechanism could be converted flexibly and conveniently.

1.控制器工作电压:AC 220V;
2.电动操作机构的控制器必须始终保持有电源，电源不能从变压器低压侧直接接出，要有另外的备用电源，这样才能保证负荷开关在切换过程中不因变压器断电而使电动机构的电机突然停转，防止机构不到位而卡死;
3.控制器电缆线配长5m，如需加长请用户提出。

1.Controller operating voltage:AC 220V;
2.The controller with power-driven operating mechanism must always maintain a power supply, the power supply can not be directly connect to the low-voltage side of the transformer, there must be an additional backup power, so as to ensure that the motor in the power-driven mechanism will not suddenly stall due to the power outage of transformer while the load switch is switching, preventing mechanism is not in place and stuck;
3. Controller cable shall be 5 meter long, if need longer please putting forward by users.

四工位T型负荷开关外形图
Overall drawing for four-position load break switch