Product Catalog

MinePwr-UP-R30524

Description

2 MVA 600V/480-13.8KV STEP UP SKID (Copper)

Section 1

600V/480V Incoming section including:

  • 600V-2500A Magnum DS circuit breaker
    • With LSI trip unit and Digitrip RMS protection relays
    • Kirk-key interlock between door and switch handle to prevent access when energized
    • Visualization window to see breaker state (safety glass)
    • Breaker will trip in the event of a problem with the NGR (SE-330) (to comply with CSA M421)
  • 600V-3000A busbar section

Section 2

Step-up transformer 480V/600V-13800V « Delta-Wye » including:

  • Dry type power transformer:
    • 2000KVA rated
    • Winding material: Copper
    • Efficiency level: C802.2/DOE 2010
    • Class H insulation 220°C
    • Primary: 480V/600V (Delta) BIL: 10kV
    • Secondary: 15kV (Wye) BIL: 95kV
    • Taps: +/- 2 x 2.5%
    • IZ: 5.0-8.5 % (Typical)
  • Spashproof ventilation louver with metal mesh protection behind

NGR section including:

  • Neutral grounding resistor (NGR):
    • Voltage: 13.9 kV L/L, 8 V L/N
    • Class: 15 kV
    • Current: 25 Amps, 60 seconds
    • Temp. Rise: 760 C
    • Resistance: 320 Ohms +/-10%
  • Startco ER15kV sensing resistor with CT

Section 3

Secondary feeder including :

  • 15kV – 600A load break switch
    • Snap Action Mechanism
    • Padlock provision
  • 15kV 600A 40kA electrically operated fixed type vacuum circuit breaker
    • Undervoltage device on breaker (trips the breaker if control power is lost)
  • Protection by the Schweitzer relay (SEL-751A) (installed in the control section)
  • Current transformer 400:5
  • Kirk-key interlock between door and switch handle to prevent access when energized
  • Visualization window to see 15kV breaker state (safety glass)

Auxiliary distribution including:

  • 1x 5kVA - 120/240V distribution
  • 1x 120/240V 8 circuits distribution panel
  • 1x30A, 2P main breaker
  • 8x 1P15A branch breaker


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