Transformation Test Articles & Analysis
6 articles found
Scope & Highlights: Substation: Protection Relays Commissioning Upload and confirm setting files Secondary injection to confirm protection settings I/O configuration and field-testing devices Development of as-built drawings Main 25MVA Transformer Commissioning Power Factor testing Transformer Turn ratio ...
Hermetically Sealed Transformers: Protecting Your Investment Transformers are an essential component of many electrical systems, serving to step-up or step-down voltage levels as required. ...
ByProtrafo
The OECD 308 water‐sediment transformation test has been routinely conducted in Phase II Tier A testing of the environmental risk assessment (ERA) for all human pharmaceutical marketing authorization applications in Europe since finalization of Environmental Medicines Agency (EMA) ERA guidance in June 2006. In addition to the ‘Ready ...
The suitability of three feature extraction methods, viz. cross–wavelet transform (XWT), discrete wavelet transform (DWT) and cross–correlation (CCL) are assessed for identification of failure using differential evolution (DE) classifier. The required winding currents for feature extraction are acquired by emulating different insulation failure in an analogue ...
Accurate identification of winding faults that may develop during impulse testing of transformer is of great importance for ensuring reliability and quality of power supply. ...
In testing transformer oils for durability, it is desirable to use typical transformer operating conditions with appropriate allowances for factor of safety against temperature and voltage. The kinetics of degradation of used type II transformer oil with original flash point of 148?C, pour point of 51?C, and water content of 4 ...