CTP and MTP Models
    Cost Benefit

  • Avoids oil fire to transformer and surrounding equipment

  • Allows transformers repair after internal fault

  • Render impossible environmental pollution by containing the oil

  • Eliminates risk to human life

  • Reduces the downtime associates with transformer replacement

  • Decreases the high costs associated with purchasing replacement power

  • Eliminates disastrous public relations issues.
    Applications

   For all transformers up 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) (OLTC)

  • Environmental sensitive areas

  • Sites not equipped with firewalls and/or Oil Storage Pits as the TP is the sole technology able to sure existing installations in this case

    STP Model
    Differences with the CTP and MTP Models

    The STP Model only protects small transformers. In this configuration, the Oil-Gas Separation Tank is used as a
    Decompression Chamber called Depressurisation and Oil and Gas Separation Tank.

    The STP Model Decompression Chamber will also perform the Oil and Gas Separation function, as shown on the picutre
    below. In most of the Model arrangements, there is no isolation Valve, no Absorber and no Conservator Shutter.

* Please click on picture ( For view the enlarged image )
     Applications

     For all small indoor transformers from 0.5 to 5 MVA such as: 

  • Residential and office buildings

  • 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



PRINCIPLE

 

uring a transformer short circuit, the TRANSFORMER PROTECTOR (TP) is activated within milliseconds by the first dynamic pressure peak of the shockwave, avoiding transformer explosions before static pressure increases.