AVS-MEKA Mobile Earth Fault Compensation System

An earth fault in a power supply network is usually caused by external influences on overhead lines and cables. In order to be able to continue to guarantee the power supply in the event of such a fault, the resonant star point grounding (RESPE) system is selected, primarily in the high and medium voltage network, which is also known as a compensated network.
The mobile earth fault compensation system can be used to compensate for an unwanted earth fault in the affected network area and thus maintain the supply until the fault is actually rectified.


Performance data and equipment (for a mains voltage of max. 24 kV):

  • Earth fault suppression coil
      • Type power: 5.000 kVA
      • Extinguishing capacity: 4.365 kVAr
      • Rated voltage: 21,000V/√3
      • Rated current: 144A to 300A (DB) or 360A (KB) in 7 steps.
  • Oil grounding transformer
      • Type power: 2.500 kVA
      • effective power: 400 kVA
      • Extinguishing power: 3.637 kVAr
      • Rated current (in OS-STP): 300A (DB) or 360A (KB)
  • Total weight 18 t (20 t interchangeable platform)
  • Control system equipped with fault indication system, protection block, oil level indicator, remote dial thermometer and resistance thermometer.
  • Connection panel via NH fuse switch disconnectors and 4 x Powerlock built-in sockets with 400 A
  • Electromotive cable current unit, equipped with:
      • 2x30m control cable
      • 1x30m LV power supply cable
      • 2x30m grounding cable
      • 3x30m MV cable 35 mm2
      • 1x30m LV power cable 4x35mm2