Core-balance current transformer for use in earth leakage circuit breaker e.g. relay, for detecting alternating current sensitive residual current in conductor circuit, has partitioning part with wall that is arranged in inner area of core

摘要

#CMT# #/CMT# The transformer (10) has a cylindrical magnetic core wrapped with a secondary conductor (12) i.e. enameled wire secondary conductor. The magnetic core comprises an inner area, which conducts multiple primary conductors (3) i.e. flexible wire primary conductors, of a conductor circuit. A partitioning part (20) protects the secondary conductor from damage while conducting the primary conductors in the inner area of the magnetic core. The partitioning part is formed in a cylindrical manner, and comprises a cylinder wall that is arranged in the inner area of the magnetic core. #CMT#USE : #/CMT# Core-balance current transformer for use in an earth leakage circuit breaker (claimed) e.g. relay and switch lock, for a main voltage-independent electrical installation device for detecting alternating current (AC) sensitive and/or pulse-current sensitive residual current in a conductor circuit. Can also be used for a residual-current circuit breaker for a main voltage-dependent electrical installation device. #CMT#ADVANTAGE : #/CMT# The partitioning part is formed in the cylindrical manner, and comprises the cylinder wall that is arranged in the inner area of the magnetic core, thus producing the transformer in a simple manner with same construction volume by higher triggering power. The partitioning part is mounted in the transformer in a simple manner, so that the assembly cost of the transformer can be reduced. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic side view of an earth leakage circuit breaker with an installed core-balance current transformer. 1 : Earth leakage circuit breaker 2 : Housing 3 : Primary conductors 5 : Connecting terminal 10 : Core-balance current transformer 12 : Secondary conductor 20 : Partitioning part.