| abstract |
The analysis apparatus comprises means 4 for sampling the current i and means for sampling the voltage on the metering board of an installation, means 5, 11, 15 for generating signal d at least once per period. 'input, a voltage Uc proportional to the intensity of the current i withdrawn, means 16, 19 for generating at each zero crossing of the input signal, a TTL signal synchronized with the voltage Uc proportional to the intensity of the current i means 2 for sampling the current signal i, the voltage signal u, the signal Uc proportional to the current signal i and the TTL signal and means for processing samples of said signals intended to establish a variation in the intensity of the current DELTAI from a predetermined number of samples of the signal Uc proportional to the intensity and if this variation in intensity is greater than a delta threshold corresponding to a sufficient duration of the detected event, in calculating the parameters d 'identifier cation of the phenomenon from the sampled intensity and voltage signals. |