Cogeneration

Cogenerations / A. Schwarzenbach.- Parity factors for economic comparisons in cogeneration plants / A. Schwarzenbach.- Modern excitation equipment for power station generators / F. Peneder.- Improved stabilization signal for smooth active power transmission / F. Blaser.- Thermal stability of high-voltage current transformers / T. H. Sie.- New distance relays LZ 91 and LZ 92 for medium and high-voltage systems / W. Kolbe, I. De Mesmaeker.- Redundant protection for EHV networks / G. Bohme, F. Frey.- Memoport / P. Affolter, U. Hanselmann.- New broadcasting stations with BBC transmitters / D. Kramer, V. Lenarcic.- The new Brown Boveri 100 kW short-wave transmitter : compact, modern, economical / J. Wyss.-