WSB Series

Product Description

Designed for the termination of primary winding leads at the front plate of fluid (mineral oil, silicone oil, and seed-based oil or an approved equivalent) filled or insulated gas (SF6, dry air or an approved equivalent ) sidewall mounting apparatus.

Technical Specification

Rated voltage

25kV

Rated Current

600A

Product Type Number

WSB260

Product Category

Weld Type Bushing

Technical Specification

Special Description:

  • Designed and manufactured in accordance with the requirements of IEEE Std 386TM-2016, standard for separable insulated connector systems. For external attachment and allow interchangeability with similarly designed bushings used on many types of pad-mounted transformers.
  • Product manufactured with high quality epoxy material. Operational temperature withstand can be up to 150°C.
  • The flange is made of SUS304 stainless steel, Corrosion resistant up to C3 level (refer to standard ASTM B117 & ISO 9223).
  • A conductive epoxy coating provides appropriate ground conduction from the flange to the lip of the well.

Table 1 - Electrical Data

Voltage and Current Rating 15/25/kV
Operating Voltage
Maximum Phase-to-Phase 26.3kV
Maximum Phase-to-Ground 15.2kV
Withstand Voltage
AC : 60Hz , 60 sec 40kV
DC: 15 Minutes 78kV
Impulse Voltage Withstand
BIL and Full Wave Crest 125kV
Corona Extinction Level
< 3pC (kV) 19kV
Continuous Current 600Amp
Short Time Current 10kA sym. for 0.17s 25kA sym. for 3.0s
Type Number WSB260