本开关是由沈阳变压器研究所组织有关厂家于1994年5月在三门腾龙电器有限公司联合设计的产品。开关采用了新结构、新材料、新工艺(开关箱盖下部高度降低了50~80mm)，具有结构合理、手感强、转动灵活、到位准确、密封性能好、接触电阻小等优点，是目前我国无励磁分接开关更新换代产品，并于1995年12月通过部级鉴定。本开关有三相、单相两种，适用于频率50、60Hz,设备最高电压12、40.5、72.5kV,额定电流63、125、250、400A的三相、单相油浸式电力变压器，可直接固定在变压器箱盖或箱壁处，在无励磁状态下分接调换。
This type of tap-changer was designed by Sanmen Tenglong Electric Appliance Co.Ltd. and the related factories with the help of Shenyang Transformer Research Institute in May 1 994. This tap-changer which is made of new structure , new material and new technology has the merits of reasonable in structure , handle freely, turning flexibly, locating exactly, good hermetically performance and small value of contact resistance ,it has become the new generation product in these days and has been certified by Ministry Department of China in December 1995. There are two sorts of products for this tap-changer, it is suitable for oilimmersed three phase or single-phase power transformer with frequency 50Hz or 60Hz, highest Voltage for equipment 12kV and 40.5kV and 72.5kV, rated current 63A, 125A, 250A and 400A. It can be fixed directly on transformer tank cover or tank wall, they must be working under non-energized condition.
WSP II₁、WSP III₁ 系列无励磁分接开关(盘型)
WSP II₁、WSP III₁，Series de-energized Tap-changer ( Tray form )
WSP III₃系列无励磁分接开关 (盘型)
WSP III₃ Series de-energized Tap-changer ( Tray form)
WDP II₂ 63/15-6 X 5QS系列无励磁分接开关( 盘型)
WDP ll₂ 63/15-6 X 5QS Series de-energized Tap-changer ( Tray form )
WDP ||₃ 63/□ -6x5系列无励磁分接开关(盘型)
WDP ||₃ 63/□ -6x5 Series de-energized Tap-changer ( Tray form)
全密封( QMF )盘型、条型无励磁分接开关
Whole sealing ( QMF ) disc、strap de-energized tap-changer
全密封盘型、条型无励磁分接开关应用于全密封油浸式电力变压器，根据全密封变压器的要求，对开关的密封性能进行改进，采用双重密封，确保开关不渗油,从而提高变压器的整体水平。该开关与同型号普通开关的安装方法和安装尺寸是一样的。
The whole sealing disC、strap de-energized tap-changer is applicable to the whole sealing oil-immersed power transformer and ameliorate the switch’s sealing property according to the requirements of the whole sealing transformer，meanwhile, it can improve the level of the transformer on all respects by adopting the dual sealing to ensure the non-immersion of the switch. This switch’s mounting dimensions and method are the same of the general switch with same specifications.
WSP II₂ 63~125/12~40.5-4x3~6x5盘型无励磁分接开关
本开关是用于组合变压器在无励磁条件下的分接调换装置。该分接开关适用于设备最高电压12、40.5kV，额定电流125A及以下的三相箱式变压器，操作分接开关时，必须在变压器无励磁状态下进行。
This instruction applies to WSP |I 2 63~125/12~40.5-4x3~6x5 type of de-energized tap-changer for pad-mounted transformer specifically used to change its step positions under no-energized condition，the switch is suitable for three-phase pad-mounded transformers with highest voltage for equipment of 12、40.5kV, rated current of 125A and below, it must be operated when the transformer is under de-energized state .
WSP II₂ 250/12-6x5SX盘型无励磁分接开关
