Oil & Gas
Electric Machinery (EM) has manufactured motors
and generators for the petroleum industry for the
greater part of the past century. EM understands that
every application is different and will work with the
customer to meet their needs.
Motors can be designed to API Standards, where
applicable; meeting welding, structural, vibration and
testing requirements. This helps customers avoid costly
down time because the motors start and run reliably,
with these other advantages from API design:
- Stator core laminations are C-5 quality or
better to withstand winding burnout if rewinding is
required.
- Low impedance ground path is welded to the back
of the machine’s core to divert surges in the power
system away from the motor, preventing damage.
- Factory balancing provides low vibration for
smooth field operation. Dynamic balancing at full
operating speed is standard for rotors above 600
rpm. Static balancing is standard for 600 rpm rotors
and below.
- Starting conditions and starting capabilities
are per API requirements.
Motors can be built for operation in classified
hazardous areas per NEC or IEC/EN (ATEX) requirements.
For synchronous motors, standard brushless excitation is
non-sparking for hazardous atmospheres.
Typical applications include:
- Centrifugal compressor motors
- Reciprocating compressor motors
- Extruders
- Expanders
- Pumps
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Synchronous motors for reciprocating compressors
