VECTRA® 40G Power Turbine

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The VECTRA 40G modular design improves serviceability while reducing downtime.

Dresser-Rand VECTRA® 40G power turbine was developed to match with the GE® LM2500+ gas generator. Together, they offer the most effective power package available for high-speed operation. As part of a complete package with the GE® LM2500+, the VECTRA 40G turbine has an ISO rating of 40,200 hp (30 MW). Thermal efficiency is 39.9 percent at full load, with a corresponding mass flow to 180 pounds per second. The VECTRA 40G has a maximum continuous operating speed of 6,500 rpm. It is the highest speed power turbine available for the GE® LM2500+.

VECTRA power design features include:

  • Two-stage overhung rotor
  • Rolling element bearings
  • Center tie and curvic couplings

Performance Summary

  • Dresser-Rand Model: VECTRA 40G
  • Engine: LM2500+
Mechanical Drive Generator Drive
ISO Power bhp (kW) 42,101 (31,396) 41,464 (30,920)
ISO Heat Rate BTU/hph (kJ/kWh) 6,347 (8,891) 6,561 (2,217)
Speed rpm 6,200 6,200

 GE and LM2500 are registered trademarks of General Electric Company.

Environmental Focus

Dresser-Rand is committed to addressing critical environmental concerns while continuing to improve operational efficiencies. Dresser-Rand’s emission control system for NOX and CO includes DLE, water injection and steam injection. For example, our DLE solutions for the VECTRA 40G can reduce NOX emissions by approximately 80 percent. Effective noise abatement systems are also a priority.

Most environmental regulations require that all continuous-duty units be low-NOX installations, of which the preferred method is DLE. Even when we produce non-DLE packages, we build with DLE retrofit in mind.