Fit & Forget, the next generation Fault Current Limiter

  • Quick to install, minimal disruption
  • Passive device, no operating costs
  • Introduces minimal losses
  • Negligible maintenance
  • No excessive noise pollution or unusual H&S issues
  • Fail-safe
  • Utility operator friendly

TECHNICAL SPECIFICATION

Typical 11 kV pmFCL configured to provide 100MVA of fault reduction.  Flexibility to reconfigure to 5, 10 or 20MVA.

KEY TECHNICAL PARAMETERS 11kV pmFCL NOTE
Line voltage 11kV RMS
Rated load current 1kA RMS
Secondary power requirement 0 Watts
Prospective symmetrical fault current 11kA Peak after sub-transient
Limited symmetical fault current 6.4kA Peak after sub-transient
Fault current reduction 45%
MVA equivalent fault reduction capacity 100MVA At 11kV L-L
Prospective first cycle peak fault current 34kA Peak First current peak of the worst case sub-transient response
Restrained first cycle peak fault current 20kA First current peak of the worst case sub-transient response
First peak current reduction 40%
Power losses at rated current 36kW At full load
Insertion current drop in load < 0.31% At full load
Power transfer advantage 240 kW Over Current Limiting Reactor
Fault withstand 3 secs From maximum load
Response to fault < 2 msec Within first cycle
Recovery from fault < 1 msec Within first post fault cycle
Size 3.5m cube 3 phase unit
Weight 57 tonnes 3 phase unit
Cooling requirements Ambient air -20 to +40 deg.C
Insulation Dry type Suitable for indoor & outdoor installations

TYPICAL 3-PHASE FAULT
CURRENT LIMITED WAVEFORM

waveform