GLOBAL WPI / Global MAX WPI — stock medium-voltage motors, 100–2000 hp, 2300/4000 (4160) V, ODP/WPI

Description

GLOBAL WPI and Global MAX WPI are stock asynchronous medium-voltage motors in a protected design (ODP / WPI, protected against weather effects), supplied from stock for fast commissioning and equipment replacement. GLOBAL WPI is produced from 100 to 1000 hp at 2300/4160 V, and Global MAX WPI from 100 to 2000 hp at 2300/4000 V. Speeds are 3600, 1800, 1200 and 900 rpm, 60 Hz supply, service factor 1.15 in continuous duty. Standard equipment: platinum resistance stator temperature sensors Pt100 (two per phase), 120 V anti-condensation heaters, an enlarged main terminal box rotatable in 90° steps with full sealing and NPT threaded entries; F1 mounting. Rotation is bidirectional, except for two-pole machines (counterclockwise viewed from the drive end). The frame and bearing housings are cast iron. Rotors up to frame 449T have cast aluminum cages; from frame 5000 and above they have cages of copper or copper alloy bars. Bearings are ball or roller type with re-greasable Mobil Polyrex EM lubricant; in two-pole motors of 600 hp and above (in Global MAX WPI, for 3600 rpm) an insulated bearing on the non-drive end protects against bearing currents. Labyrinth metal deflectors on both sides, cast iron inner and outer bearing caps, a grounding terminal in the box and on the foot, and six leads. The motors are CSA certified. Color: dark grey, Munsell 7.5B 3.5/0.5. Applications: pumps, fans, compressors, crushers and conveyors in the oil and gas, water supply, mining and processing industries, and power generation. The motors are part of the medium-voltage range alongside the enclosed TEFC designs Global MAX TEFC and Global-XPE up to 2000 hp.

Technical specifications