ADT ON-LINE DEHYDRATOR & ADT MINI ON-LINE DEHYDRATOR

  • Easy and safe installation and commissioning: 100% computer-controlled
  • No disconnection of the transformer under treatment, not even during the installation of the dehydrator (Plug & Play design)
  • No air venting after installation: hydraulical interconnections to a transformer oil filling are set under vacuum and subsequently rinsed by oil
  • Moisture and particles content is reduced to the level of a new transformer
  • Quick restoration of dielectric strength of oil
  • No impact on the insulating oil properties and DGA
  • Direct check of dehydration efficiency based on the amount of removed water: calculated as the product of difference input-output water content in oil (2 x humidity sensors) x precise volumetric reading of oil throughflow
  • Easy and safely replacement of adsorbent cartridges and filters without a potential oil spill
  • Remote monitoring & control of drying process
  • Calculation of actual value of dielectric strength (Ud-value) of oil
  • Easy verification of simulated Ud-values by lab reading(s) by means of Verification diagram
  • DOG (Dynamic Overdrying Guard) procedure inhibits the overdrying of hard insulants

S-03 ON-LINE DEHYDRATION AND FILTRATION OF TAP-CHANGERS

Designed for the continual operation for the filtration & drying of insulation oils in tap changers & load selectors of main transformers under normal operational conditions. diluted water, as well as mechanical particles, are bound into the large volumes filter insert during the operation

  • The thermal stratification layer then effectively obstructs free mixing of hot oil from the main tank with the cold, and air and moisture contaminated, oil from the conservator
  • Permanent low oxygen level in the oil induces the high-order decreases aging intensity of the oil-cellulose system of a transformer
  • Easy and simple installation – no modification of the conservator ot the main tank of the transformer is necessary
  • No maintenance – the sealing element as a natural phenomenon of the oil is indestructible

TRAFOSEAL

New art of sealing of power transformer utilizing a thermal stratification layer, which spontaneously arises as an “interface” between hot oil (main tank) & in cold oil (conservator) in the trafoseal tank

  • The thermal stratification layer then effectively obstructs free mixing of hot oil from the main tank with the cold, and air and moisture contaminated, oil from the conservator
  • Permanent low oxygen level in the oil induces the high-order decreases aging intensity of the oil-cellulose system of a transformer
  • Easy and simple installation – no modification of the conservator ot the main tank of the transformer is necessary
  • No maintenance – the sealing element as a natural phenomenon of the oil, is indestructible

SIMMS 2.2: IN SITU DIAGNOSTICS OF TRANSFORMER

  • Easy and quick connection to the oil sampling points of a transformer
  • Automatic tracking of Tx temperatures and water content in the oil
  • Check of the temperature and water content equilibrium
  • First data snapshot about a moisture and gas problem of a transformer already within 30 – 40 minutes
  • Evaluation of water content in hard insulants

VACUUM SEPARATOR, VS-06 & VS-07, VERSION 2020

Online dehydration, degassing & filtration of power transfrmer, controlled removal of fault gases

SIMILARITIES
  • No impact on the insulating oil properties
  • Plug & Play design: No disconnection of the transformer
  • Under treatment, usually not even during installation
  • Remote monitoring & control of the degassing process
DIFFERENCES BETWEEN VS06 & VS07
VS06
  • Minimum manpower (Install & Service)
  • Quick restoration of dielectric strength of oil
  • Direct check of the dehydration efficiency
  • No over-drying of the transformer
  • Application of advanced and patented technologies like “hydraulic piston” for vacuum building and “bubble bed” for moisture separation
  • Effective removal of fault gases via stripping procedure
VS07
  • Easy and safe installation and commissioning (100% computer-controlled)
  • Quick restoration of safe operation conditions
  • Direct check of degassing efficiency based on the amount of removed gases
  • No air venting after installation:  hydraulical interconnections to a transformer oil filling are set under vacuum and subsequently rinsed by oil
  • Minimum moving parts, the gear pump works like an oil pump or a vacuum pump
  • Easy control of function by SMS via your handy