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  • Users: Yogima
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  1. Yogima

    132kV Switchgear Ground Clearance in Substation

    Dear experts, I hope you can provide some insight with an issue I have. My organisation is supervising a new substation that will import 50MW via 132kV transmission line and transformerd into 66kV for reticulation to the existing grid. While reviewing the drawings for the 132kV switchyard, I...
  2. Yogima

    GPR in Concrete

    Dear experts, I have not come across sufficient information to assist me in designing grounding system for a switchyard control building using IEEEStd80:2013. I am seeking your expertise to advise me if my thoughts are incorrect? 1. GPR in concrete is different from GPR in soil. 2. a. What is...
  3. Yogima

    Earthing Design - 66/11kV Substation

    Dear experts, I have been reading the IEEE Std80:2013 (free version) and have compared it to one of our company's recent projects design files and have noted some issues I hope the experts can shed some light on. For example, the consultant had used the fault levels from the 11kV side to size...

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