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  • Users: tlr7616
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  1. tlr7616

    Number of breaker operations possible...

    I am trying to find out what the typical number of open/close/open/close operations is possible for a high voltage circuit breaker (>69 kV). Many of the higher voltage circuit breakers are blast type breakers and are limited to just a few operations until the compressor can recharge. In my...
  2. tlr7616

    Transformer Impedances

    Hi Everyone, Perhaps I a bit rusty but in any case here is my situation: I am trying to complete a generation interconnection data sheet for submission. I have a project that will be using a 27/230 kV step-up transformer. It will be rated at 150 MVA. Now, given that the client has actually...

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