Blue e³ is the registered trade name used by EREA Energy Engineering to distinguish energy-efficient transformers from traditional transformers. It is pronounced "blue triple e" – “triple e” stands for “EREA Energy Efficiency”.
Join us in the blue e³ world
The launch of the blue e³ product line is EREA Energy Engineering’s response to the European Union’s 20/20/20 goals. All blue e³ products, whether standard or custom-made for our customers, are developed so as to considerably reduce energy loss. This increased yield translates into euros thanks to the energy savings made during the life span of the product. So the economic value of a blue e³ product is more than just the initial purchase price. The economic value is equivalent to the initial purchase price minus the energy that the product will save.
The EREA blue e³ energy saving insolating transformers (SPT/BTE series) can also be used within the framework of the AREI Art 104 –vital current paths. This is how an isolated system is created to the secondary (IT floating system). Because of isolation monitoring, a first isolation error is detected early on and thus guaranteeing a very high safety level with regard to users, buildings and equipment.
Moreover inrush current limited (IRC)
The transformers marked with the IRC extension are not only energy-efficient but are also Inrush Current limited. (IRC). This allows you to use the full power budget in electrical networks after transformation. The inrush current is less than 5 x the nominal current: Io <5x Inominal.
Three-phase energy-efficient isolating transformer (BTE) - IP00 - Upri 230V ∆ - 400V Y+N // Usec 230V ∆ - 400V Y+N - Power 16000VA