Siemens Low and Medium Voltage Transformer Solutions

Transformers

Siemens transformers are completely static electrical devices which convert alternating current from one voltage level to another. The transformer is used to match the voltage supply to the electrical load. They can increase (step-up) or decrease (step-down) voltages. Since no vaults are required for installation, dry type transformers can be located right at the load to provide correct voltage for the application. This eliminates the need for long, costly, low voltage feeders. Siemens general purpose transformers meet applicable NEMA, ANSI, UL, and IEEE standards.


DOE 2016 is Official and has an Effective Date of January 1st, 2016

Department of Energy (DOE) 10 CFR 431 released efficiency standards which will take effect January 1, 2016. All Transformers covered by this document manufactured after December 31, 2015 must be compliant with the new standard.

  • Any Products Manufactured to the TP1 efficiency standards, before January 1st, 2016, can still be sold and installed after January 1, 2016.

  • For LV Transformers: New efficiency standards apply to Dry-Type Three-Phase Ventilated Transformers, including Harmonic Mitigating Transformers from 15kVA to 1000kVA and XES specialty transformers. The new DOE 2016 standards will surpass and supersede Siemens NEMA TP1 standards and Siemens NEMA Premium Standards. (see chart for values).

  • The change in efficiency ratings may require changes to the basic construction of many configurations and may increase size/ weight of each transformer. Most models will contain higher grade steels and different styles of cores. New cut sheets and mounting data will be available as well.

  • See FAQ’s document for more information and check back for more documents to be added in the future.

  • Siemens Medium Voltage (MV) Distribution Transformers are also affected by this standard. These are custom quoted for each application. These quotations will stipulate in the clarifications, the Department of Energy efficiencies being quoted (DOE 2010 or DOE 2016). If your project is expected to ship after January 1, 2016 please let Application Engineering know at time of quote so the proper standard will be quoted.


Low Voltage Distribution Transformers

Siemens Low Voltage Distribution Transformers are completely static electrical devices which convert alternating current from one voltage level to another. The transformer is used to match the voltage supply to the electrical load. They can increase (step-up) or decrease (step-down) voltages. Since no vaults are required for installation, dry type transformers can be located right at the load to provide correct voltage for the application. This eliminates the need for long, costly, low voltage feeders. Siemens transformers meet all applicable ANSI/IEEE, NEMA, and UL standards.



Medium Voltage Distribution Transformers

Siemens can provide all types of Medium Voltage Transformers that are custom designed for your application. We can also be provide Siemens Unit Substations that utilize close-coupled Siemens Low Voltage Switchgear or Switchboards. You can choose from Dry-type (VPI, VPE, or Cast Coil), we can also supply Liquid-filled transformers that use a variety of insulating fluids such as: FR3 - Enviro-Temp, Silicone, or Mineral Oil.