Post-Installation Hermetic Sealing of Oil Transformers
GATRON´s Breathing Buffer Box G3B
(Sale by Elektromotorenwerk Barleben)


  • service-free sealing system
    • oxygen reduction in the transformer
    • protection from outside moisture entry
  • support of gas accumulation function of the BR
  • multiple-box system for various oil volumes and working temperatures
  • for existing and new transformers
  • also usable for OLTC

  • monitoring of oxygen, moisture and hydrogen in the gas room
  • active drying in the gas room
  • nitrogen feeding during resaturation
Breathing Buffer Box G3B
Prototype of G3B installation

Prototype of G3B installation Status: August 2009
Technical modifications reserved

Relevant informations:

Technical datasheet
PDF Format >>
Post-installation hermetic sealing of oil transformers with the Breathing Buffer Box G3B
more >>
CIGRE Colloquium
Paris, August 25, 2010
The Extension of IEC 60599 to Open Type Transformers >>
Gas Household of Open Type Transformers
ew, Jg. 109 (2010),heft 14-15, S.56-59
New Knowledge >>