Product Catalog

PitMaster-Mobile-J33315Z-000

Description

7.5MVA trailer mounted substation

Incoming section

27kV 630A breaker

  • Insulation class: 27kV rms
  • Nominal service voltage: 27kV rms
  • Frequency: 50/60hZ
  • Rated continuous current at 40 C.: 630A
  • Minimum ambient operating temperature: -60°C
  • Maximum ambient operating temperature: 55°C
  • Temperature rise: 80 C
  • BIL: 150 kV BIL
  • Power frequency withstand voltage (1 min dry): 70kV
  • Power frequency withstand voltage (10 sec wet): 60kV
  • Rated short-circuit breaking current: 12.5kA
  • Rated short-circuit making current: 32.5kA
  • Rated short-time withstand current (4 sec) : 12.5kA
  • Mechanical life/ Operating cycles @ rated current: 30 000
  • Operating cycles @ rated short-circuit breaking current: 200
  • Closing time: less than 40ms
  • Opening time: less than 15ms
  • Break time: less than 28ms

Transformer section

7.5MVA power transformer :

  • ABB RESIBLOC
  • 7.5MVA ANN
  • Insulation class: 155°C (standard for RESIBLOC)
  • 80°C Rise
  • Minimum ambient operating temperature: -60°C
  • Maximum ambient operating temperature: 40°C
  • Copper windings
  • Primary: (dual primary voltage)
    • 13.8kV (Delta) BIL: 110kV
    • 25kV (Delta) BIL: 150kV
  • Secondary
    • 7.2/4.16kV (Wye) BIL: 95kV
  • IZ: 5.75%
  • Enclosure:
    • NEMA 3R
    • Approximative dimensions: 138’’ H x 108’’ D x 180’’ W
    • Enclosure is rated for 90mph wind loads

PTO outputs section

2x 7.2kV PTO output including :

  • 1x 7.2kV 800A mainbuss
  • 1x 24kV 630A load break switch
  • 1x switch operation handle
  • 1x kirk key interlock set (interlock between switch handle and door)
  • 1x Visualization window to see switch state (safety glass)
  • 1x 15kV 630A breaker
  • 1x 7.2kV output receptacle
  • 1x “system ground”
  • 1x “isolated ground”
  • 1x controls
  • 2x External light
  • Heating and thermostat control

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