Siemens Medium Voltage Converter SL150

SINAMICS SL150 - The cycloconverter for slow-speed synchronous and induction motors with a high torque

SINAMICS SL150 cycloconverters with thyristor stacks are the optimum choice when it comes to continuously controlling the speed of high-rating induction and synchronous motors with a high torque and low stator frequencies. They are implemented as three-phase thyristor bridges in a 6 or 12-pulse connection. Ideally suited for powering mine winders, conveyors, grinding mills and excavators due to is rugged design.

Sentinel Zambia - Sentinel Copper Mine, Gearless mill drive systems

Sentinel is a copper mine project located approximately 150 kilometers west of Solwezi in the middle of the savannah. In incorporates the most modern and cutting-edge technology.

Xstrata Copper, Peru - Antapaccay Mine, Integrated Drive Systems in huge mining conveyor system.

The need for highly reliable equipment that manages increasing mine capacity requirements, reduces maintenance costs and can perform in remote mining regions is continously increasing. Such as in Xstrata Copper´s new Antapaccay mine at an elevation of more than 4,200 meters in the Peruvian Andes.

Benefits at a glance

1- Fewest drive components for any given power rating - Low component variety to reduce capital investment and associated costs for storage and logistics.

2- Compact and rugged design for extreme environments - High altitudes, temperatures and air quality, plus service friendliness for remote areas.

3- Optimal configuration and operation - Integrated test routines, feedback and self-diagnostics, including thyristors, improved commissioning and tuning.

Use of standard HV cable due to the typical low switching speed of thyristors (no screened or armored cables required).

Technical data overview

Air cooling*		Supply voltage (V)	Motor voltage (V)	Power (MVA)
Single 6-pulse connection	Open connection	1180	1700	3.2 - 9.4
	Star connection	3 x 950	1515	2.9 - 8.4
	Star connection	3 x 1360	2190	6.3 - 8.7
2 x 6-pulse parallel connection	Open connection	2 x 1180	1700	10.6 - 16.9
	Star connection	6 x 950	1515	9.4 - 15.1
	Star connection	6 x 1360	2190	11.4 - 15.7
12-pulse parallel connection	Open connection	2 x 1180	2 x 1700	11.8 - 18.8
	Star connection	6 x 950	2 x 1515	10.5 - 16.8
	Star connection	6 x 1360	2 x 2190	12.5 - 17.4
Water cooling**		Supply voltage	Motor voltage	Power
12-pulse series connection	Star connection	2 x 1310 V	4000 V	12 - 18 MVA
2 x 6-pulse parallel connection	Star connection	2 x 2620 V	2 x 4000 V	24 - 40 MVA