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  1. fayehooengtips

    PT broken delta winding should be earthing?

    Some PT's broken delta secondary winding is earthing,but some is not. Why ?Which one is right? The earthing is for safety,why not earthing? And how to earthing? Please help me. http://files.engineering.com/getfile.aspx?folder=2263f742-4bd2-48a4-a26d-19551edcec6d&file=IMG_20110610_171301.jpg...
  2. fayehooengtips

    What type of control cables are these?

    These cables are single core,used for internal wiring in protection cabinets and switch control cabinets by GEC Alstom and Schneider. The core is marked "SFP -1000 1*2.5mmsq NF C 32070 2.2 BVT 85 -CEI 332.3B -LOT N 7292",and looks like a "<HAR> H07VK"cable.These cabinets were made in about...

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