Overheating will accelerate the aging process of the cellulose paper and other insulation materials in a transformer, shortening it useful life over time.
Pressure builds within a transformer due to temperature increases sustained A14:E17 an internal fault situation or under excess load, negatively impacting the tank walls and other internal components.
Over time excess moisture can degrade the insulation properties in a transformer. This negatively affects both the solid (paper) and liquid (oil) insulation with the transformer reducing its useful life.
Monitoring the level of insulating fluid within a transformer is vital to its health. A high level may indicate overfilling or overheating whereas a low level may indicate a catastrophic leak in the system.
Overheating and arching in a transformer can liberate a variety of gases that can be used to pinpoint potential problem areas and help avoid catastrophic failures.
Partial discharge monitoring provides information such as location on the small electrical sparks that occur within the insulation as a result of aging or deterioration.
Overheating in a transformer can signal a potential issue and cut the useful life of the asset. As the temperature rises the cellulose paper and other insulating materials inside will start to breakdown. Understand the temperature profile within the transformer and provide a window into the asset to mitigate the risks and plan preventative actions before its too late.
Basic thermometers provide insight into oil or simulated winding temperatures
Fiber Optic Sensors provides the most accurate hot spot temperatures within a winding
Variety of transformer monitors to trend temperatures and have smart algorithms to assess the remaining life within an asset
Moisture intrusion into a transformer can signal a major issue within the asset. Over time, water can break down the insulating properties of the oil and cellulose paper, causing irreversible damage. Qualitrol’s family of TM Series DGA sensors have an optional moisture probe to measure water within the insulating fluid.
Smart Transformer Breathers prevent atmospheric water intrusion
Data logging, event recording and dynamic loading analysis help to optimize loading
Qualitrol offers electric utilities on-line DGA solutions across the entire power transformer fleet
Partial Discharge monitoring offers rapid detection of even small changes in electrical activity that may be precursors to failures in a transformer. PD data complements proven technologies such as oil and gas analysis which may give an earlier warning.
Add later in the transformer’s life to give more advanced monitoring capabilities once DGA has indicated that there is a problem within the asset
Both portable and standalone Partial Discharge monitors provide an excellent window in the activities within the heart of the transformer
PD may also be incorporated into larger CBM solutions through comprehensive monitoring packages in the QTMS
Fault gases are liberated within a transformer as temperatures rise and start to break down the insulation materials, drastically cutting the assets useful life. Dissolved Gas Analysis (DGA) can signal issues within the winding and help prevent catastrophic damage before it happens by trending the fault gases as they accumulate.
Qualitrol offers many options to suit any need depending on transformer size and application
DGA150/250/400 are utilized to measure Hydrogen on vault transformers and have the option of incorporating rapid pressure rise relay functionality
The TM Series of DGA monitors offer a variety of solutions for gas monitoring from single gas hydrogen applications to all 8 fault gases plus moisture
All of Qualitrol’s DGA options may be paired with transformer monitors including the ITM 505,ITM 509 and all inclusive QTMS CBM packages
Customizable monitor for any number of gases that is a non Gas Chromatograph (GC) based product that utilizes no F53:F65
QUALITROL manufactures monitoring and protection devices for high value electrical assets and OEM manufacturing companies. Established in 1945, QUALITROL produces thousands of different types of products on demand, customized to meet unique requirements.