The company s other published works include : " Line Current Differential Protection : A Collection of Technical Papers Representing Modern Solutions, " edited by H�ctor J . Altuve Ferrer, Bogdan Kasztenny, and Normann Fischer; " Analyzing and Applying Current Transformers, " by Stanley Zocholl; and " AC Motor Protection ", by Stanley Zocholl.
32.
Some smelters achieve approximately 12.8 kW�h / kg ( 46.1 MJ / kg ) . ( Compare this to the heat of reaction, 31 MJ / kg, and the Gibbs free energy of reaction, 29 MJ / kg . ) Minimizing line currents for older technologies are typically 100 to 200 kiloamperes; state-of-the-art smelters operate at about 350 kA.
