00302nam a2200109Ia 4500008004100000041001200041082001100053100001600064245010000080260000600180650000600186221030s9999    xx            000 0 und d  aEnglish  a105.23  aL. P. Singh 0aDigital Protection Protective Relaying from Electromechanical to Microprocessorcby L. P. Singh  c0  aB