Protective relays.

Numerical distance protection :principles and application / Gerhard Ziegler ; [editor, Siemens AG]. by: (Language materials, printed)

Power system relaying / by: (Language materials, printed)

Power supply devices and systems of relay protection / by: (Language materials, printed)

Power system protective relaying / by: (Language materials, printed)

Power system protection and relaying :computer-aided design using scada technology / by: (Language materials, printed)

Protective relays.

Electric power systems- Protection.

Electric power systems- Equipment and supplies.

Power electronics.

Electric power supplies to apparatus.