21.
ASEA. 1981- Low-voltage control gear
22.
Distance relay type razoa : information RK614-300E
23.
Distance relay type RAZFE : catalogue RK613-300E
24.
ACEC: Contacteurs IOS, Relais ROS, Démarreurs DOS
Data:
1977
25.
Características de operação de um relé fotoeléctrico / O. D. D. Soares , F. V. P. Morais
Autor:
Soares, Olivério D. D.
Data:
Mai-Jun 1978
26.
Merlin Gerin. Catalogue
27.
Brown Boveri. Directional power relays type PM : Relays and Protection Schemes- CH- ES 61-51.1 E / Brown Boveri
28.
Brown Boveri. Static relay for the protection of motors types ITX 162, ITX163 : Relays and Protection Schemes- CH- ES 61-31.1 E / Brown Boveri
29.
ACEC. Rails tendeurs en acier profilé série GA
30.
A half cycle bus differential relay type radss : catalogue RK637-002E