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Test current transformers for residual magnetism

The CT Analyzer from Omicron Electronics is said to provide fast and comprehensive testing of current transformers for protection and metering applications.

The improved device now features additional software functions and new hardware accessories. 
As a new measurement function, the RemAlyzer allows current transformers to be tested for residual magnetism. 
Residual magnetism may occur in current transformers due to very high currents or DC offsets during fault conditions. Core saturation effects caused by residual magnetism may lead to the incorrect operation of protection relays. 
The new CT SB2 switch box for the automated testing of multi-ratio CTs is available as a stand-alone unit. This can be attached to the device, thus eliminating the need for rewiring. This provides simple, color coded, six-channel connection possibilities, guaranteeing convenient wiring and avoiding time consuming and error prone reconnection, according to the company.

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