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US 8,044,307 B2Granted
Power transformer/reactor
AssigneeABB Technology AG
InventorsJan Anger, Mats Bernesjö, Ramsis Girgis
Life of this patent
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Abstract
A power transformer/reactor immersed in oil including a transformer/reactor core and windings accommodated in a tank including a tank base plate and tank walls. A foundation supports the tank. An elongated continuous band forming a closed frame is arranged between the base plate and the foundation. An outer periphery of the base plate extends outside an inner periphery of the frame and thereby encloses an air volume within the frame, the base plate and foundation. The tank support reduces sound emitted from the transformer/reactor.
Claims10
A power transformer/reactor immersed in oil, comprising:
- transformer/reactor core and windings,
- a tank comprising tank base plate and tank walls, wherein the tank accommodates the transformer/reactor core and windings
- a foundation supporting the tank,
- an elongated continuous pad, comprising oil resistant solid rubber, forming a closed frame arranged between the base plate and the foundation to absorb vibration, the frame forming a full support of the base plate, wherein an outer periphery of the base plate extends outside an inner periphery of the frame, thereby enclosing an air volume within the frame, the base plate and foundation.
1 more element
Dependencies are inferred from the claim text.