| 摘要 |
<p>A lead box is provided by dynamoelectric machines, such as large turbine generators, which includes shielding means within the lead box for shielding the generator leads in a manner to eliminate stray magnetic fluxes. Preferably, the shields are cylindrical structures arranged concentrically with the leads to maintain a symmetrical field within the shields, and current transformers associated with the leads are disposed inside the shields.</p> |
