HIGH VOLTAGE DESIGN STRUCTURE FOR HIGH TEMPERATURE SUPERCONDUCTING DEVICE

摘要

In accordance with the present invention, modular corona shields are employed in a HTS device to reduce the electric field surrounding the HTS device. In a exemplary embodiment a fault current limiter module in the insulation region of a cryogenic cooling system (10) has at least one fault current limiter set (16) which employs a first corona shield (8) disposed along the top portion of the fault current limiter set and is electrically coupled to the fault current limiter set. A second corona shield (8) is disposed along the bottom portion of the fault current limiter set and is electrically coupled to the fault current limiter set. An insulation barrier (120) is disposed within the insulation region along at least one side of the fault current limiter set. The first corona shield and the second corona shield act together to reduce the electric field surrounding the fault limiter set when voltage is applied to the fault limiter set.