IEEE 11-1937

11-1937 is a superseded AIEE standard covering railway motors and other rotating electrical machinery used on rail cars and locomotives. It focuses on the technical requirements that help define suitable design, electrical performance, and operating expectations for traction equipment. For transportation applications, this kind of document matters because rotating machinery must perform reliably under demanding service conditions, with attention to engineering consistency, insulation, and compatibility with rail vehicle duty.

About 11-1937

This technical document addresses rotating electrical machinery associated with rail vehicles, including motors used in traction and related rail-car or locomotive equipment. As an AIEE American tentative standard, 11-1937 reflects an early effort to formalize requirements for equipment design and evaluation in railway service. Its purpose is typically to bring more uniformity to engineering practice, helping specify how such machinery should be constructed, tested, and assessed for use in transportation systems where performance and durability are closely tied.

Where is 11-1937 used?

11-1937 is most relevant in rail transportation settings where electric motors and similar rotating machines operate on rail cars and locomotives. It may be used in the design, specification, or review of traction equipment, auxiliary rotating machinery, and other rail vehicle electrical components that must function under heavy-duty service. Engineers, procurement teams, and maintenance groups can use it as a reference point when comparing equipment intended for railway applications and related electrical systems.

Importance in practice

In practice, 11-1937 helps support clearer expectations for performance and design control in railway rotating machinery. Standards of this type are important for reducing variation between equipment, improving compatibility across projects, and supporting consistent testing or acceptance decisions. For rail operators and suppliers, using a defined technical basis can lower risk during procurement and service planning, especially where reliability, insulation behavior, and operating consistency are critical to safe transportation service.

• Railway motors and rotating machinery
• Traction and auxiliary rail equipment
• Design and construction requirements
• Testing and acceptance reference
• Superseded historical AIEE document