Siemens Medium Voltage Converter GL150

SINAMICS GL150 - The rugged LCI variable speed and starting converter for large synchronous motors and generators

The LCI-converter (load commutated inverter), SINAMICS GL150, is designed for single-motor applications with variable and constant torque characteristics in power ratings up to 85 MW (Higher ratings on request). Available in air- and water-cooled designs and capable of 2Q or 4Q operation. Commonly used for variable-speed operation as well as for start-up operation of large synchronous motors and generators and with speeds ranging up to approx. 7000 rpm.

Shougang Jingtang Steel Plant -

China Outstanding performance and cost savings at Blast Furnace Blowers, Maximum performance and significant cost savings at the Blast Furnace Blowers.

Benefits at a glance:

1- Compared to VSI drives, most cost-competitive solution for large power ratings -Power density per M2.

2- Mature and proven LCI topology - With over 40 years of experience and large installed base.

3- Rugged and compact design for complex high-power applicaions - Fault tolerant, high MTBF, utilized in marine, starting and high-power applications, most rugged thyristor technology. Regenerative capability for energy-saving drive system solutions.

POSCO Pohang Steel Plant South Korea - Optimizing reliability and efficiency at the Blast Furnace Blowers

Higher reliability and maximum efficiency for the blast furnace blowers at Pohang Steel Plant.

Technical data overview

Input voltage kV	Air-cooling (6- / 12-pulse) Power (MVA/MW)	Water-cooling (12-pulse) Power (MVA/MW)
to 3.0	1.4 to 8.1 / 5.7 to 16.2	6 to 16
to 8.3	5.7 to 9.7 / 11.4 to 30	21 to 32
to 7.8	–	31.5 to 48
to 10.4	–	50 to 64
to 12.0	–	58 to 85