Most widely used for monitoring green energy resources around the world for more than 80 years
TRANSFORMER DGA MONITORING
Dissolved gas analysis in the transformer has been used for decades as a reliable tool for indication and prevention of defects. According to international standards for maintenance of transformers and in accordance with the rulebook for testing of HV equipment in Macedonia, this analysis is mandatory.
Gases in oil are created by breaking the molecular bonds of oil molecules caused by electrical stress (partial discharges, hot spots, oxidation, decomposition of insulation, etc.).
This equipment is installed on a transformer for continuous monitoring of the content of dissolved gases (indication of failure) and dissolved water in transformer oil (indication of poor sealing or chemical water).
The Vaisala MHT410 online monitoring system measures the level of dissolved hydrogen (which occurs in all transformer failures) and generally serves as a parameter for the basic indication of a change in state. In addition it measures the water content in the oil and accurately measures the temperature. The advantages of this instrument are:
direct measurement (the probe through the transformer valve enters the vessel and measures directly in the oil due to which it has the fastest reaction)
5 year warranty
durability and reliability
The Optimus 100 online monitoring system measures all 7 gases of defects of diagnostic tools (with additional indication of sealing of the transformer vessel for which N2 and O2 are used), measures dissolved water and temperature. Vasiala Optimus has no consumable spare parts, parts with a limited service life (less than 15 years), no need for recalibration or any maintenance.
The equipment connects to the Scada, has alarm options, has a trend tracking option and responds significantly faster to other transformer protection (such as Buchholz).
Transformers, like any other equipment, are susceptible to defects caused by the factor of imperfection and premature aging of materials, imperfection in making human errors in maintenance and manipulation. Depending on the value of the transformer, these defects, if not noticed in time, grow into more expensive defects. lost production if the defect is repaired in time).
The primary purpose of continuous monitoring is to protect against defects that develop faster (due to the small chances of detecting them with periodic laboratory analysis). An additional limitation of laboratory analysis is the time required to sample, analyze and obtain results (for example if a decision needs to be made to re-enable a transformer after an outage
MHT410 online monitoring system measures level of dissolved hydrogen (which can be found on all transformer defects) and generally serves as a parameter for the basic status indicator. This instrument measures water content in oil and accurately measures temperature. MHT 410 can be connected with the SCADA system. Read more in the datasheet below…
The Optimus 100 online monitoring system measures all 7 gases of defects of diagnostic tools (with additional indication of sealing of the transformer vessel for which N2 and O2 are used), measures dissolved water and temperature. Vasiala Optimus has no consumable spare parts, parts with a limited service life (less than 15 years), no need for recalibration or any maintenance, can be connected with the SCADA. Read more in the datasheet below...