Electricity: electrical systems and devices – Safety and protection of systems and devices – Generator protective circuits
Reexamination Certificate
2005-10-11
2005-10-11
Sircus, Brian (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Generator protective circuits
C361S062000
Reexamination Certificate
active
06954345
ABSTRACT:
A generator for producing high voltages and having at least one generator winding (12) is connected via a generator circuit (10) to a network (19), which generator circuit has means (15, . . . , 17) for protection against overvoltages. Improved protection against higher voltages is achieved in that the at least one generator winding (12) is subdivided into a number of winding sections (12a-c) whose winding insulation is designed such that the insulation level is graduated, and in that the overvoltage protection means have a number of overvoltage protection elements (15, . . . , 17), which are associated with the respective individual winding sections (12a-c) and whose response levels are matched to the requirements of the associated winding section.
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M. Lejion et al, “Breaking Conventions in Electrical Power Plants”, No. 11/37-03, CIGRÉ Session 1998).
Blatter Richard
Joho Reinhard
Lindahl Sture
Soerensen Erland
Alstom Technology Ltd.
Cermak Adam J.
Cermak & Kenealy LLP
Nguyen Danny
Sircus Brian
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