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  • Users: RBlais13
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  1. RBlais13

    Siemens BZO-145-63-6 Vendor prints

    I'm looking for some vendor prints for a Siemens BZO-145-63-6 OCB. I am doing a relaying upgrade and need to utilize some more 52a and 52b contacts, so a print showing the aux contact wiring in the breaker would be very useful. I can't seem to find anything on-line. any suggestions on where I...
  2. RBlais13

    Supply Side bonding jumper

    I have a 13.8-4.16kV transformer (D-Y). The neutral is impedance grounded (400A @ 10 seconds). The transformer feeds a lineup of switchgear. According to 250.30(A)(1), Exception 2 of the NEC, is worded such that a wire type bonding jumper from the transformer enclosure to the "Incomming Main" of...
  3. RBlais13

    GE 800 Series Relays (850, 845...etc)

    Hello All, We have recently been purchasing the 800 series feeder protection relays (850) and transformer differential relays (845) per our customer specifications on some substation jobs. These relays have to be ordered with different firmware packages based on the relaying options that is...

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