Kiosk
auto reclosers

The VX4 series of Automatic Circuit Recloser is clearly the most advanced and safe product of its kind on today's market. It is built on the well proven VX, Vacuum circuit breaker module and the FTU Recloser controller.

Hughes Power System substation kiosk auto recloser 12kV 24kV
  • Non enclosed switch for extra safety
  • Core balance transformer for detecting low earth faults
  • Operation On and Off without electric power
  • Solid insulated. No harmful SF6 gas
  • Same footprint as ABB NAL loadbreak switch
  • Frame of stainless steel

Module ofVacuum Interrupter

  • High current vacuum breaker element, AMF type
  • 630 or 1250A continuous line load
  • 20 or 25kA fault current in max 3 sec
  • Bushings of epoxy resin or PT66 nylon
  • Optional integrated and synchronized air break switch
  • Optional visible open points on all 3-phases
  • Integrated 3x phase current transformers
  • Integrated 1x core balance CT for low earth faults
Hughes Power System substation kiosk autorecloser recloser 12kV
  • Frame made of 5 and 4mm SIS 2333 stainless steel
  • Electrical circuit made of copper
  • No electro chemical corrosion
  • Integrated heater 
  • Three phase CT + core balance CT for low earth faults (100mA)
  • Manual maneuver of both vacuum interrupter and air break switch.
  • Design specification IEC 62271-111
  • Marking specification IEEE std C37.60 
Hughes Power System substation kiosk autorecloser recloser 12kV 24kV

VX4Electrical diagram

Hughes Power System substation kiosk autorecloser recloser 12kV electric diagram

VX4Technical data

Description Vx4-120 Vx4-120  
Rated maximum voltage 12 kV 12 kV  
Rated basic impulse level, P>P 85 kV 85 kV  
Rated basic impulse level, P>E 75 kV 75 kV  
Power frequency withstand, Dry 50 kV 50 kV  
Power frequency withstand, Wet 45 kV 45 kV  
Description 12 kV 12 kV  
Rated continuous current 630 A 1250 A  
Rated fault making current 50 kA 50 kA  
Rated fault breaking current 20 kV 31.5 kV  
Cable charging current 30 A 35 A  
Line charging current 10 A 25 A  
Rated fault duration time 4 s 4 s  
Contact resistance, VCB < 35 µΩ < 35 µΩ  
Contact resistance,ABI < 60 µΩ < 60 µΩ  
Network frequency 50/60 Hz 50/60 Hz  
Description Winding 1 Winding 2 Winding 3
Phase CT type 1 200/1 400/1 600/1
Core balance CT (12 kV) 20/1    
Description      
Design min mechanical/electrical 20.000 20.000  
Mass (weight) without air break switch - kg (lbs) 75 (165) 77 (170)  
Mass (weight) with air break switch - kg (lbs) 98 (216) 98 (216)  
Description      
Ambient temperature C (F) -45 - +70 -45 - +70  
Humidity 100% at 25 C 100% at 25 C  
Bushing type Epoxy core with silicone surface
Creep distance to group 400 mm 400 mm  
Max installation altitude at rated BIL 3000 M 3000 M  
Description      
Rated operation voltage 220 VAC 110 VDC  
Rated power 40 W 40 W  
Design specification IEC 62271-111
Marking specification IEEE std C37.60
Operation sequence, no charge 25 ms trip - 50 ms close - 25 ms trip

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