• Robert Dansertlaan 250, 1702 Groot-Bijgaarden, Belgium

Epoxy transformer bushings for 24 - 36 - 72.5 kV

For use in equipment insulated with fluid oil, typically for transformers, switchgears, capacitors…
Equipment bushings are epoxy insulated castings in accordance with CENELEC EN 50180.
Plug-in type equipment bushings meet the requirements of CENELEC EN 50180 and IEC 60137
The standard rings are equipped with 6 tabs for retaining the bail.

Epoxy resin material

Raw materialAromatic epoxy resin, hardened with dicarboxylic acid anhydrides filled with silanised silica
Tensile strengthISO R 52779,28 N/mm²
Flexural strengthISO R 178102,45 N/mm²
Impact strengthISO 1799,2 kJ/m²
Noth impact strengthISO 1791,2 kJ/m²
Compressive StrengthISO R 604130 - 150 N/mm²
Critical stress intensity factor (K ic)CG 216-0/891.9 - 2.1 Mpa.m 1/2
Specific energy at break (Gic)CG 216-0/89300 - 340 J/m²
Glass transition pointISO 11357-1 (DSC)115 +5/-10 °C
Class of flammabilityUL 94V1 >12mm
Water absorbtionISO 620,018% by wt.
Coeff. of linear thermal expansionDIN 53752 (20 - 80°C)31-36*10-6 K-1
Tracking resistanceIEC 60112CTI >600 -0.0
Dielectric constantDIN 534834,2 (23 °C, 50 Hz)
Dissipation factorIEC 602500,0309 % (23°C - 50 Hz)
Dielectric strengthIEC 60243 - 117 - 20 kV/mm
HV arc resistanceASTM D 495182 - 189 seconds
DensityISO 1183-11.9 g/cm³
Colorbrown

Epoxy transformer bushing 24 kV - 250 A - Interface A

Epoxy transformer bushing 24 kV - 250 A - Interface A

Epoxy transformer bushing 24 kV - 250 A - Interface A

Epoxy transformer bushing 36 kV - 630 A - Interface C

Epoxy Transformer bushings 24-36-72,5 kV

ArticleArtInterfaceRated
Voltage
Rated
current
ThreadABCWeight
TypekVAmmmmmmkg
BUS-24-250-RB21353A24250M10189,5731101,06
BUS-24-250-NB21352A24250M10224,51081101,20
BUS-24-250-LB21351A24250M10284,51681101,43
BUS-36-630B21350C36630M163301501282,50
BUS-72,5-630B22647F72,5630M163841751504,90
BUS-72,5-1250B22648F72,51250M163841751505,75