What is BS EN 60076-19‒ The losses of power transformers about?
BS EN 60076-19 is a part of an international multi-series standard that focuses on aspects of power transformers and related equipment.
BS EN 60076-19 is a technical specification, illustrating the procedures that should be applied to evaluate the uncertainty that is affecting the measurements of no-load and load losses during the routine tests on power transformers.
BS EN 60076-19 specifications can also be used for the measurements of reactor losses if the attention is paid to the transformers especially, except for large reactors with very low power factors.
BS EN 60076-19 specifies the technicalities such as related terms and definitions, symbols, power measurement, systematic deviation, and uncertainty, procedures for no-load loss measurement, procedures for load loss measurement, three-phase calculations, reporting, estimating the corrections and uncertainty contributions, etc.
Who is BS EN 60076-19‒ The losses of power transformers for?
BS EN 60076-19 on the losses of power transformers is useful for:
- Transformer manufacturers and designers
- Transformer accessories manufacturers
- Transformer test conductors
- Reactor manufacturers
- Regulatory authorities
Why should you use BS EN 60076-19‒ The losses of power transformers?
Evaluation of uncertainty in testing is often characterized as “top-down” or “bottom-up”, where the first one relies on inter-laboratory comparisons on a circulated test object to estimate the dispersion and hence the uncertainty. The “bottom-up” method is applied in BS EN 60076-19.
BS EN 60076-19 deals with the measurement of the losses from a measuring point of view consisting of the estimate of a measurand and the evaluation of the uncertainty that affects the measurand itself.
BS EN 60076-19 sets out the procedure that can be applied to the loss measurements on power transformers and reactors, as an evaluation of the achievable performance of a test facility in the course of prequalification processes. The standard sets an approach and can be applied by the user as an effective estimation of achievable uncertainty, in the inquiry stage of an order or prior to the beginning of the final testing at the manufacturer´s end.
Overall, BS EN 60076-19 proves to be very beneficial for the users, as the losses of the transformers (no-load and load losses) are the object of guarantee and penalty in the majority of the contracts. They play an important role in the evaluation of the total (service) costs and hence, in the investments involved. It can also be used for evaluations of market surveillance measurements.
