Different Applications   MTP Type Applications For all transformers from 3 to 1 000 MVA or above, located in: • Power plants and any industrial site whose production could be affected by the loss of a transformer • All the transmission and distribution substations • Industrial plants with high explosion risks (oil refineries, offshore plants, mines) • Environmental sensitive areas • Sites not equipped with firewalls and/or Oil Storage Pits (the Transformer Protector is the sole technology able to secure existing installations in this case) Characteristics • Every Depressurization Set has a Decompression Chamber. • The explosive Oil-Gas mixture is evacuated to an Oil-Gas Separation Tank • The explosive gases are channeled to a safe location • The Oil-Gas Separation Set can be shared between multiple transformers when not located too far from each other. For more information on the different applications of the Transformer Protector, please refer to document 8. STP Type Differences with the MTP The STP only protects small transformers. This is why the Oil-Gas Separation Tank is used as a Decompression Chamber called Depressurization Tank. Also, there is no Isolation Valve, no Absorber and no Conservator Shutter when the transformer has no Conservator. Applications For all small indoor transformers from 0.1 to 3 MVA such as: • Residential and office buildings, towers • Schools, universities, hotels, airports, hospitals • Underground substations • Industrial plants with high explosion risks (oil refineries, offshore plants, mines) • Railway network power supply stations • Environmental sensitive areas