Product Catalog



750KVA Mine duty portable substation

Section 1

13.2 kV incoming including:

  • 13.2kV incoming switch
    • 13.2kV 600A Load break switch (unfused)
    • 3x phase CT 300-5 (protection class C100)
    • 2x fused potential transformer 13.2KV/120V (connected on the load side of the switch, between the switch and breaker)
    • Kirk-key interlock between 13.2kV switch door and switch handle to prevent access when energized
    • Kirk-key interlock between 13.2kV transformer doors and switch handle to prevent access when energized
    • Recessed switch operating handle to prevent breaks during handling
    • Visualization window to see 13.2kV switch state (safety glass)
    • High voltage indicator LED at the switch incoming
    • Feedthrough for another 13.2kV load
  • 13.2kV vacuum circuit breaker
    • 13.2kV - 20kA 600A electrically operated fixed type vacuum circuit breaker
      • Under voltage trip release on the 13.2kV breaker (for loss of control voltage protection)
    • SEL 751A Overcurrent protection by the micro-processor based relay (see details in the control section)
    • Breaker will trip in the event of a problem with the NGR

Section 2

Transformer 13200 / 480-277V « Delta-Wye » including:

  • Dry Type Power Transformer :
    • Double epoxy vacuum impregnation
    • 750kVA
    • Copper windings
    • Adjustment taps : 4x 2.5% (2FCAN+2FCBN)
    • Class H insulation 220°C
    • 150 Rise
    • Primary: 13.2kV (Delta) BIL: 95kV
    • Secondary: 480/277V (Wye) BIL: 10kV
    • IZ: 6% (est.)
  • Splash proof ventilation louver with metal mesh protection behind
  • Neutral grounding resistor (NGR) 18,5 Ohm, 15A, 60 seconds
  • Startco ER600V sensing resistor
  • Current transformer for NGR monitoring

Section 3

480V Distribution section including:

  • 3x 225A Output
    • 225A 3P thermomagnetic breaker
      • With under voltage release trip
      • Padlock hasp
    • Startco SE-105 Ground fault relay
      • (Supplied by INSE GROUP – installed by ADRIA)
    • Ground fault indicator lights and controls
      • Reset pushbutton
      • Ground fault LED indication light (RED)
      • Ground check LED indication light (GREEN)
    • 225A Crouse-hinds 8346-802 panel mounted receptacle
    • 3x 325A Output

Enclosure including:

  • Built as per Adria mine duty standard
  • Nema 2 enclosure
  • Drip proof design suitable for underground mining
  • Lifting eye on all 4 corners
  • All compartment that are before 13.2kV main interrupter are closed with removable bolted panel that are removable by a single person
  • All compartment that are after the 13.2kV main interrupter are closed with hinged mounted doors to allow fast and easy access
  • Sand blast surface preparation and epoxy painted (Adria’s standard colors);
  • Estimated Dimensions: 72’’ H x 60’’ D (without plugs) x 148’’ W (1.8m H x 1.5m D x 3.8m W)
  • Estimated weight: 11 000 lbs (5000 kg);

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