| 摘要 |
The invention relates to a switchgear comprising several three-position load-break switches (4) disposed in a gas tank (1) and having switch blades, one of which is provided for a transformer, in addition to grounding devices (13) and ducts (8) as well as a contact piece serving as busbar for the switch blade having identical phases in the "On" position and an arc extinguishing device. The invention aims at providing a more compact switchgear. To this end, the three-position load-break switch (4) for the transformer tap is fitted with HH fuses (S) and a second, three-pole grounding switch (13) located behind the latter. The HH fuses (S) are disposed in a fuse housing (16) located on the outer side (1) of the gas tank, whereby the connections (17) of the fuse housing (16) are guided through the tank wall and one connection (17) is connected to the corresponding leadthrough (8) for the transformer connection while the other connection (17) is connected to the corresponding phase of the transformer switch (4), whereby the phases (L1, L2, L3) thereof are disposed in the interior in a protective rail (17a).
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