An extension of Laurence Scott & Electromotors long standing and acclaimed NORac range, the P-Series maintains the strengths of the NORac and the flexibility to adapt but now incorporates fabricated steel “Box” frame construction for the smaller frame sizes. With proven reliability and cost effective operations in a wide variety of industries and environments, the P-Series continues the LS concept of satisfying the need of individual users with a rationalised but versatile range of machines.

The range covers ratings up to 20MW for supply voltages from 3.3kV to 13.8kV at 50Hz or 60Hz. Machines with centre height of 450 to 710 utilise box frames of fabricated steel construction with end shield mounted bearings, while machines of centre height 900 and above are of unit construction with pedestal mounted bearings. The rigid steel fabricated base plate has machined facings to provide seatings for the stator corepack, bearing pedestals and enclosure.

The range is designed to accommodate top mounted enclosures or heat exchanger. As such the IP code can range from IP22 for simple open ventilated motors to IP55 or IP56 with air or water cooled heat exchanger. NEMA I or NEMA II enclosures are also available.

The strength and versatility of the range has allowed LS to design and apply its technology in many arduous and difficult environments, including the largest off-shore induction motor currently in operation on a North Sea Platform, rated at 14.5MW.