Loher
Категория: Электродвигатели
Industrial motor Ex e
Loher Motors with type of protection "e" (increase safety) distinguish themselves as the various components are optimally harmonized with one another (winding / rotor and components). This is the reason that special construction regulations also apply for these motors. When compared to motors with a flameproof enclosure, which makes any ignition non-hazardous, the protection philosophy for these motors is to avoid ignition, even when a fault situation occurs. The permissible winding temperatures are reduced, which in turn results in a longer lifetime and a low risk of ignition. Fault situation "locked rotor": Loher Ex e motors set themselves apart as a result of the higher (than specified) safe locked rotor time - tE - this makes drive monitoring simpler, safer and uncritical. "Increased safety" therefore also involves a longer service life and especially a higher degree of reliability and operational safety.
Категория: Loher motors in Ex e
Chemstar motor Ex e
From the safety philosophy, this motor is identical with the Ex e industrial motor. What makes it special is the fact that it has been specifically designed for applications in the chemical and petrochemical industry. Efficiency and effectiveness using high-quality components that completely fulfill the stipulations for "increased safety".
Категория: Loher motors in Ex e
Vario / J series
The motors in the "increased safety" version offer a high degree of explosion protection but at the same time have a low weight and complexity. The copper bar rotors used as standard allow starting and operating parameters to be optimized for each and every specific application. The steel version allows various bearing concepts, dimensions can be adapted and a wide range of instruments can be mounted. 3 versions are available: The Vario Ex e series is surface cooled with flat ribs combined with a defined inner cooling circuit with internal shaft-mounted fans. The J series Ex e from Loher have a modular cooling design featuring double flow inner cooling for a high power density and a homogeneous temperature distribution in the following versions: Mounted air-water heat exchanger: The heat exchangers are available in a wide range of versions with single and double pipe versions. Mounted air-air heat exchanger: The cooling pipes are manufactured out of galvanized steel; stainless steel versions are available for especially aggressive atmospheres.
Категория: Loher motors in Ex e