3m Innovative Properties Company

Shanghai Neoent Industrial Co., Ltd.

Jinquan Yang

Zheng Huang

Ming Zhang

Zhigang Xu

Jiangjiang Ma

Lei Guo

Qi Su

Yong Ding

Qingqiang Ma

Huawei Liu

Meng Zhuang

Gaofei Guo

Xiaofeng Mou

Daiping Jiang

Simao Liu

Jianglong Chen

Folding trunk

A tool for installation and removal of a connector of a gas-insulated switchgear termination includes a housing defining an operation chamber therein, a mounting assembly selectively disposed in the operation chamber of the housing and adapted for securely installing a sleeve member of a gas-insulated switchgear termination on a conical connector member of the gas-insulated switchgear termination or removing the sleeve member securely sleeved on the conical connector member from the conical connector member, an actuator assembly adapted for actuating motion of the mounting assembly, and a friction reducing assembly adapted for reducing friction and resistance occurring during the motion of the mounting assembly.

Tool for installation and/or removal of connector or gas-insulated switchgear termination

Disclosed is a corona-free cap assembly for achieving uniform electrical stress distribution around an electrical device having a cylindrical end, the corona-free cap assembly comprising: a clamping member configured for clamping on the cylindrical end along circumferential direction of the cylindrical end; and a corona-free cap comprising a grading chamber with two open ends, the corona-free cap further comprising a connection component fixed inside the grading chamber and adapted for connection with the clamping member in a manner that the corona-free cap is detachably fixed on the electrical device and the cylindrical end of the electrical device is at least partially extended into the grading chamber of the corona-free cap through one of the open ends.

Corona-free cap assembly

The present invention provides an inlet funnel () for cable terminal, which comprises a funnel body part () and a fixation part (). The funnel body part () has one end with a smaller opening and the other end with a larger opening, said funnel body () having a gradually increasing diameter (D) from said one end with the smaller opening to said other end with the larger opening, and the funnel body () is suitably to be installed over an electrical cable (C). The fixation part () is provided at said other end with the larger opening of said funnel body part () and adapted for the attachment of said inlet funnel (). The inlet funnel () further comprises a pretreated mounting part () extending from said one end side with the smaller opening towards said the other end side with the larger opening. Accordingly, the inlet funnel for cable terminal according to the present invention may reduce workload, save time, and simplify the mounting process.

Inlet funnel for cable terminal

A device and a method for a field expansion. A support core () is inserted into the device by a field expansion apparatus. The field expansion apparatus has a pressure applying means () defining a radially expandable inner surface and a flat surface radially outwardly extending from the radially expandable inner surface. The device comprises an elastomeric tubing () and an adapter (). The elastomeric tubing () has a forward end opposite a rearward end and an axial bore extending therethrough configured to receive the support core (). The adapter () has a step portion () defined by a radial outer surface () and a flat surface () radially outwardly extending from the radial outer surface (), and an axial bore () extending therethrough. The axial bore () has a diameter substantially the same as the diameter of the axial bore () of the elastomeric tubing (). The adapter () is positioned substantially coaxially with the elastomeric tubing () between the pressure applying means () and the elastomeric tubing () such that, in response to inserting the support core () from the rearward end into the elastomeric tubing (), the flat surface of the adapter () is pushed against the flat surface of the pressure applying means () by the elastomeric tubing (); the interface between a rearward end of the adapter () and the forward end of the elastomeric tubing () is of high friction so that the adapter () and the elastomeric tubing () expand radially in unison, and the radial outer surface of the adapter () exerts a radially outward pressure against the radially expandable inner surface of the pressure applying means (). device and method for field expansion device and method for field expansion.

Device and method for field expansion

Growing community of inventors

Shanghai, China

Jinquan Yang