Pfisterer CONNEX Connectors (MV-HV Inner Cone Plugs & Cable Terminations)

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Pfisterer CONNEX Cable Plugs | Medium High Voltage Cables

Pfisterer CONNEX Cable Plugs | Medium & High Voltage Cables 33kV 52kV

Thorne & Derrick distribute Pfisterer CONNEX Connectors for medium and high voltage cable connection and termination to electrical systems – we provide competitive prices for Pfisterer CONNEX connectors used to terminate and connect polymeric insulated MV-HV cables into gas insulated switchgear and electrical equipment from extensive stocks to UK and international destinations.

CONNEX

Pfisterer MV CONNEX cable connectors are specified to terminate medium/high voltage cables into gas insulated switchgear, RMU ring main units, transformers, transducers and capacitors typically distributing 33kV/52kV electricity – depending on MV bushings a range of sizes are available to terminate polymeric cables with XLPE/EPR insulation, bonded or easy strip semicon, copper wire/tape screen and with or without armour.

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Stockists & Suppliers | Pfisterer CONNEX


MV-CONNEX Technical data & Size classification list

The following table provides a specification overview of CONNEX connectors, manufactured by Pfisterer, to suit equipment bushing sizes 0, 1, 2, 3 & 3S on gas insulated switchgear and substation applications.

Bushing Size 0 1 2 3 3-S
Max. operating voltage Um kV 24kV 36kV 42kV 42kV 52kV
Rated voltage U kV 20kV 30kV 36kV 36kV 45kV
Phase-to-earth voltage U0 kV 12kV 18kV 20.8kV 20.8kV 26kV
Nominal current IN A 250 Amps 630 Amps 800 Amps 1250 Amps 1250 Amps
Conductor round stranded solid flexible stranded solid flexible stranded solid flexible stranded solid flexible stranded solid flexible
Cross-section ) (reference value) Min. sqmm 25 35 16 25 70 16 25 70 16 35 95 25 35 95 25
Max. sqmm 70 70 50 240 240 185 400 325 240 800 1000 400 800 1000 400
3)Diameter*(design specification) Min. [mm] 5.6 5.6 5.6 4.9 8.3 6.5 4.9 8.3 6.5 6.1 10.5 6.5 17.5 10.5 6.5
Max. [mm] 11.9 11.9 11.9 20.1 20.1 18.3 24.1 22.0 20.6 36.0 36.0 26.8 36.0 36.0 26.8
Voltage tap w/o with*1) w/o .1) th       / w/ow i w/o (XL) with*1) / w/o w/o (XL) with*1) / w/o w/o (XL)
Diameter over insulation*3) after removing of the semi-conductive cable screen Min. [mm] 12.7 13.5 13.5 13.5 36.0 15.5 46.0 15.5 46.0
Max. [mm] 23.5 31.5 36.0 36.0 44.0 46.0 55.0 46.0 55.0
Rated power withstand voltage 1min [kV] 54 81 95 95 117
Partial discharges at 2 x UO [pC] ≤ 10 ≤ 10 ≤ 10 ≤ 10 ≤ 10
Rated lightning impulse 1,2/50 ìs [kV] 125 170 200 200 250
D.C. voltage test 15min. [kV] 72 108 125 125 156
Rated short-time withstand current           1s
3s
[kA] 16
31.5
16
40
25
60
40
60
40
Rated impulse current [kA] 40 125 125 150 150

*1) Earth the voltage tap test lead separately if it is not needed
*2) The range of the cross section is only valid if min. resp. max. diameter over conductor and min. resp. max. diameter over insulation are in the specified range
*3) The total range is covered by several components

Pfisterer CONNEX Connectors

CONNEX Connectors | High Voltage Substations & Gas Insulated Switchgear

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