| 摘要 |
<p>A transformer for an intrinsically safe system has separate first and second magnetic cores (28a, 28b) mounted in wells (22a, 22b) in a one-piece plastics housing (10) which serves both as a housing and to electrically segregate the cores. Passing through the housing and through the cores is a wire loop (34) which is turned back and joined outside the housing so as to link the two cores electromagnetically. The cores (28a, 28b) are preferably toroidal cores. <IMAGE></p> |
