| 摘要 |
<p>PURPOSE: To provide a gas insulated switchgear in which a current transformer can be incorporated easily in a vessel in which a circuit breaker is housed. CONSTITUTION: A current transformer conductor 19 is connected to the lower terminal 12 of a circuit breaker CB which is housed in a vessel 1 through a lower conductor 18. A plurality of current transformers CT which detect currents in the current transformer conductors of respective phases are attached to current transformer support frames 32 which are provided for the respectively phases and a current transformer assembly unit 33 is composed of the current transformer support frame 32 and the current transformer CT of each phase Openings if1 which are provided on the bottom plate 1f of the vessel 1 in order to attach enclosing terminal plates 28 which have terminal metal fittings 31 to which the secondary terminals of the current transformers CT are connected are so formed as to have dimensions large enough to insert the current transformer assembly units 33. The current transformer assembly units 33 of the respective phases are inserted into the vessel 1 through the openings 1f1 and fixed to the vessel 1.</p> |
