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  • Users: yms
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  1. yms

    EHV power quality with renewable gen

    Does anybody have any data about increasing harmonic penetration and possible electrical resonance in EHV transmission systems caused by utility scale renewable with nontraditional (non-synchronous) generation (Solar, PV, Wind, etc)?
  2. yms

    230-500kV inductive PT replacement with CCVT or optical VT

    Is it feasible to replace 230-500kV PTs with CCVTs or optical voltage transformers from the reliability point of view during major substation upgrade?
  3. yms

    Isolating 69-138kV potential instrument transformers

    What is a common engineering practice of fusing or isolating 69-138kV potential instrument transformers connected directly to the substation bus in order to Doble test or perform other required maintenance without de-energizing the bus?

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