发明申请
US20130021830A1 INSULATION IN A POWER TRANSMISSION SYSTEM 有权
电力传输系统绝缘

INSULATION IN A POWER TRANSMISSION SYSTEM
摘要:
A substation has a converter comprising a first set (S1) of series connected converter valve elements provided between a first (V1) and a second (V2) potential, where the absolute value of the second potential is higher than the absolute value of the first potential, and a second set (S2) of converter valve elements, comprising at least one converter valve element, provided between the second and a third potential (V3), where the absolute value of the third potential is higher than the absolute value of the second potential and all converter valve elements of the second set are placed inside one or more casings (28) placed on elongated post-like insulation (24), where the potential of the end of the post-like insulation on which the casings are placed is in a range between the second and the third potential, while the other end of the post like insulation is at ground potential.
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