| 摘要 |
<p>PURPOSE: To obtain a gas insulated switchgear which can be transported as a unit by disposing a transformer perpendicularly to a bus coupling a power receiving unit and an interrupting unit and coupling the transformer unit with a circuit breaker through an L-shaped branch bus. CONSTITUTION: A lead-in bushing 1, a current transformer 7, and a power receiving circuit breaker 2 constitute a conduction path as a power receiving unit. A ground switch 3 on the primary of circuit breaker is connected between the power receiving unit and the upper bus 11 of a circuit breaker 4. A lower bus passes through the circuit breaker 4 and connected with an L-type enclosure 10 housing a ground switch 5 on the secondary of circuit breaker connected with a transformer 6. With such arrangement, the gas insulated switchgear 14 and the transformer 6 can be confined within a transportation limit dimension L2 . Since the gas insulated switchgear can be transported as a unit except the bushing 1, transportation cost and the labor required for installation at site can be reduced.</p> |
