for earth leakage detection: those that are voltage-operated and those that are current-operated. the voltage-operated devices are no longer used but, for completeness, they consisted of a coil connected in series in the earthing conductor or between the metalwork of the installation and an auxiliary...
induction sensors coils on cup cores are mainly usedfor induction sensors. they are characterized by very good magnetic shielding and the ability to achieve high inductances with small core dimensions. the above coils are mainly wound up, which results in better performance. " air coils air coils without...
components and parts ( ) feeds for animal farming ( ) plastics household products ( ) furniture and shelving - office ( ) raw materials for construction and public works ( ) estate agents - commercial and industrial ( ) fruit ( ) warehouses and bonded warehouses ( ) electricity works ( ) poultry - rabbits...