High Voltage (HV) Surge Arresters, 6.6kV-42kV - Pfisterer Connex

Pfisterer Power ProductsMedium Voltage MV Surge Arresters​

Pfisterer HV-Connex Surge Arresters

Sizes 4 - 72.5 kV & 5S - 145 kV

 

Pfisterer HV-Connex surge arresters make it possible to achieve the optimum surge protection design for transformers and gas-insulated switchgear (GIS). 

Pfisterer HV-Connex surge arresters for protection of metalclad switchgear and transformers which are fitted with plug-in connections in accordance with EN 50180 / 50181. 

Pfisterer Connex Surge Arresters

Pfisterer HV-Connex Surge Arrester Sizes 4 & 5-S Applications

  • Connecting a transformer via a cable line to the overhead line
  • Connecting switchgear via a cable to the overhead line
  • Connecting a switchgear via a cable to other resources
  • Voltage levels up to Um = 72.5 kV or Um = 145 kV
  • Max rated voltage UR = 72.5 kV or UR =145 kV 

 

Pfisterer HV-Connex Surge Arrester Sizes Features & Benefits 

  • Active part constructed with no spark gaps, using metal-oxide resistors without spark gaps
  • HV-Connex arresters hasve resistors with high thermal stability
  • Corrosion-resistant and shock proof thanks to aluminum and fiberglass housings
  • Hermetic encapsulation of the active components against environmental influences such as humidity or pollution
  • Insulation of the active parts from the metallic housing by means of silicone rubber sheathing „
  • Pfisterer Surge Arresters are maintenance-free, as solid insulated
  • Outdoor resistant
  • Any mounting position
  • Plug-in
  • Bursting disc with rotatable exhaust port for defined pressure relief in the event of overload 

 

Pfisterer Size 4 HV-Connex Surge Arrester Technical Data

Nominal Discharge Current 

10kA, 8/20μs

Rated Short Circuit Current 

40kA, 0.2s

High Current Impulse

100kA, 4/10μs 

Long Duration Current Impulse 

420A, 2000μs 

Rated Frequency

50Hz - 60Hz 

Line Discharge Class

2

Energy Absorption Capacity 

4.28kJ/kV Ur 

Weight 

Approx. 40kg 

 

Pfisterer Size 5S HV-Connex Surge Arrester Technical Data

Nominal Discharge Current 

20kA, 8/20μs 

Rated Short Circuit Current 

40kA, 0.2s

High Current Impulse

100 kA, 4/10 μs 

Long Duration Current Impulse 

900A, 2800μs  

Rated Frequency

50Hz - 60Hz 

Line Discharge Class

4

Weight 

Approx. 115kg 

 

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High Voltage (HV) Surge Arresters, 6.6kV-42kV - Pfisterer Connex