摘要:
A device and a method for a field expansion. A support core (30) is inserted into the device by a field expansion apparatus. The field expansion apparatus has a pressure applying means (20) 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 (10) and an adapter (40). The elastomeric tubing (10) has a forward end opposite a rearward end and an axial bore extending therethrough configured to receive the support core (30). The adapter (40) has a step portion (41) defined by a radial outer surface (42) and a flat surface (43) radially outwardly extending from the radial outer surface (42), and an axial bore (44) extending therethrough. The axial bore (44) has a diameter substantially the same as the diameter of the axial bore (12) of the elastomeric tubing (10). The adapter (40) is positioned substantially coaxially with the elastomeric tubing (10) between the pressure applying means (20) and the elastomeric tubing (10) such that, in response to inserting the support core (30) from the rearward end into the elastomeric tubing (10), the flat surface of the adapter (40) is pushed against the flat surface of the pressure applying means (20) by the elastomeric tubing (10); the interface between a rearward end of the adapter (40) and the forward end of the elastomeric tubing (10) is of high friction so that the adapter (40) and the elastomeric tubing (10) expand radially in unison, and the radial outer surface of the adapter (40) exerts a radially outward pressure against the radially expandable inner surface of the pressure applying means (20). device and method for field expansion device and method for field expansion
摘要:
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.
摘要:
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.
摘要:
The present invention provides an inlet funnel (100) for cable terminal, which comprises a funnel body part (10) and a fixation part (20). The funnel body part (10) has one end with a smaller opening and the other end with a larger opening, said funnel body (10) 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 (10) is suitably to be installed over an electrical cable (C). The fixation part (20) is provided at said other end with the larger opening of said funnel body part (10) and adapted for the attachment of said inlet funnel (100). The inlet funnel (100) further comprises a pretreated mounting part (30) 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.
摘要:
The present invention provides a tool (200) for installation and removal of a connector of a gas-insulated switchgear termination (800). The gas-insulated switchgear termination (800) includes a conical connector member (101) for receiving the cable core (301) of electric cable (300), a sleeve member (102) installed on the conical connector member (101), and, a locating member (103) being mated with the conical connector member (101). The tool (200) comprises: a housing (203) defining an operation chamber (2030) therein; mounting assembly selectively disposed in said operation chamber (2030) of said housing (203) and adapted for securely installing the sleeve member (102) on the conical connector member (101) or removing the sleeve member (102) securely sleeved on the conical connector member (101) from the conical connector member (101); actuator assembly adapted for actuating motion of said mounting assembly; and, friction reducing assembly adapted for reducing friction and resistance occurring during the motion of said mounting assembly.