| 摘要 |
Each span 12 of the three-phase shielded station comprises a breaker compartment 36 enclosing a breaker 34 and a non-isolable earthing sectionaliser 68. A current transformer 44 and an isolable earthing sectionaliser for test functions lie in the measuring compartment 38 interposed between the breaker 34 and the line sectionaliser 54. An isolable earthing sectionaliser 74, 76 is also associated with each set of bars 14, 16. The non-isolable arrangement of the earth sectionaliser 68 allows the cost of manufacture of the breaker compartment 36 to be reduced. <IMAGE>
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