Anti-DC transformer cores as a combination of core components, used in electrical degree / watt-hour meter, power measuring systems. Features of the core: 1. Strong anti-DC-capacity; 2. Precision, the scope of application of 0.5-0.1 grade level, the scope of application of current 1.5-200A; 3. Excellent high and low temperature properties; 4. A high price. Wooden case+carton box.