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  1. harmonicoscillation

    Underground Transmission in Europe

    I was at a conference with FERC Chairman Pat Wood yesterday regarding the technical feasibility of high voltage UG transmission and one guy made a number of claims regarding the extent of underground transmission in Europe. It left me wondering about the veracity of his claims, as I keep...
  2. harmonicoscillation

    Power factor correcting

    Someone asked why he doesn't want to correct higher than 0.85. I don't know for sure in his case, but many utilities, instead of direct kVA metering or PF billing, only penalize you if you are below 0.85 PF, and don't reward you above that. Other PFs may apply, but .85 is a common threshold...
  3. harmonicoscillation

    Generator issues

    I also want to note that the trouble spot can be pinpointed with some degree of certainty by observing the characteristic of the output. If the load swings are a nice smooth sine wave the governor is more suspect. If the swings are irregular a control valve is more suspect. I would also note...
  4. harmonicoscillation

    Generator issues

    I've run into this any number of times. I'm only aware of two possibilities, barring anything really bizarre. It's either a governor issue or a control valve issue. If you have a (steam) control valve that is binding, it will constantly over- and under- shoot causing a significant oscillation...
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