High-voltage explosion-protected motors Ex eb, Ex ec, Ex p

Description

Explosion-protected motors of medium and high voltage for operation in explosive atmospheres of the oil and gas, petrochemical and chemical industries. This is an important part of the manufacturer’s rotating machine programme; two types of protection are traditionally used in the range: “increased safety” (Ex eb, Ex ec) and “pressurized enclosure” (Ex p). Certification follows the ATEX Directive: any accredited European notified body can issue a certificate valid across the whole EU, without re-certification in each country. Both individual machine certification and serial (type) approval are possible. An example is the ATEX-serially certified starting motors for gas turbines that the manufacturer has supplied continuously to GE since 2000, for Zone 1 and Zone 2 areas of oil and gas facilities. For supplies outside Europe, the machines are certified under the IECEx scheme, which many countries recognize without repeat testing, and for the American market to NEC requirements. Structurally, the explosion-protected motors are based on the manufacturer’s common platform of asynchronous machines of 0.5–15 MW with frame sizes of 400–1250 mm, compliant with IEC standards (NEMA MG.1 on request), and are manufactured at the Tapiószele plant with individual acceptance tests.

Technical specifications