TY JOUR TI ANALYTICAL VOLTAGE AND EXAMPLES OF ITS USE IN FIRE-TECHNICAL EXPERTISE OF ESTABLISHED NON-SINUSOIDAL MODES OF ELECTRICAL CIRCUITS KW electrical circuits KW analytical voltage KW Hilbert conversion KW steady-state modes KW non-sinusoidal modes KW full power KW active power KW reactive power KW distortion power JO MONITORING AND EXPERTISE IN SAFETY SYSTEM AU Agunov, M.V. AU Verbova, N.M. PY 2025 IS 2025 PB Saint-Petersburg University of State Fire Service of Emercom of Russia