Measuring appts. insensitive to excessive voltage - contg. inner conductor, first sensor for measuring electric field, and second sensor for measuring magnetic field

摘要

Measuring appts. (1) for a metal encapsulated appts. has at least one inner conductor (3), at least one first sensor for measuring an electric field originating from the conductor (3) and at least one second sensor for measuring a magnetic field originating from the conductor (3). The novelty is that: (i) the first sensor is arranged between the second sensor and the conductor (3); (ii) the first sensor partially surrounds the second sensor; and (iii) both sensors are connected to a monolithic sensor block. ADVANTAGE - The appts. is very insensitive to excessive voltage and electric arc effects.