Siemens Medium Voltage Drives: Digitalization

The maintenance of a medium voltage drive train system can be challenging. The drive train equipment is often exposed to extreme stresses subject to varying levels of wear and tear. These strains can remain invisible to the naked eye until it is too late, leading to outages and unplanned downtime. 

With Siemens Drive Train Analytics, customers can breathe easy knowing that Siemens experts are continuously monitoring and analyzing their drive train equipment's health and operating conditions remotely from our Service & Support Center. 

Siemens provides valuable insight into equipment health as a service to maintenance personnel, enabling them to be notified and act, often before the equipment breaks down. It's like having your drive train expert on staff – working together with maintenance personnel 24/7 and taking care of your drive train equipment with real-time intelligence. 

For more information about Siemens Medium Voltage Drives in Florida, contact Instrument Specialties. Call them at 407-324-7800 or visit their website at https://isisales.com​.

Next Generation of Medium Voltage Drives From Siemens

One of several variants of the GH180
medium voltage drive
Courtesy Siemens

Siemens, global leader in drive technology, has released its latest generation of medium voltage drives. The Sinamics GH180 line incorporates a newly designed power cell with a reduced part count that increases unit reliability and reduces space requirements. The new drive delivers a number of advantages and improvements.

• High reliability with fault tolerance through cell redundancy and Siemens Advanced Cell Bypass
• Energy efficiency through improved unit control for better throughput and less energy waste
• Delivers near unity power factor by eliminating harmonic current and voltage distortion
• Reduced motor insulation stress and harmonic heating
• Significant torque pulsations eliminated from load
• Proactively alerts operator of potential issues before they become shutdown worthy problems

The drives are suitable for new and retrofit installations because of their compact size. A range of models cover applications from 300 kVA through 18,000 kVA.

A datasheet is included below that provides more detail. Share your motor drive challenges and applications with a product specialist and combine your process and facility knowledge with their product application expertise to develop effective solutions.

Next Generation Medium Voltage Drives from Instrument Specialties, Inc.

Cell Change Out On Siemens Air Cooled Drive

Part of a good design for industrial equipment is providing for effective maintenance and service with a minimal time commitment. In the video, you can see the procedure for change out of an internal cell on a Siemens Sinamic air cooled drive. The procedure, as you will see, is straight forward and takes little valuable time.

Share your drive component requirements and challenges with product experts, combining your facility and process knowledge with their product application expertise to develop effective solutions.

Variable Frequency Drives and Energy Savings: More Than Just Fan and Pump Applications

Siemens Medium Voltage Drive

When discussing energy savings and variable frequency drives (VFD) the attention often focuses on a centrifugal fan or pump application. However, you should not overlook other applications which also have large potential energy savings and energy recovery. Applications involving regeneration, power factor correction, common bus applications or a combination of the three can also quickly achieve a significant reduction in energy use.

The paper below provides detailed insight into other application areas where VFD's provide substantial energy savings.

Variable Frequency Drives and Energy Savings: It‘s More Than Just Fan and Pump Applications from Instrument Specialties, Inc.

Advanced Cell Bypass for Variable Frequency Drives (VFDs)

Advanced cell bypass is patented technology at the Siemens Robicon drive. It allows the drive to continue operating in the unlikely event at the cell fault.

This feature is available on all Siemens Robicon drives. The unique perfect harmony topology makes it all possible.

When a drive is equipped with this feature a contact is present on the output if each other power cells. In the event of a fault the contact closes and isolates the output to the power cell.

With multiple power cells connected in series, the loss of one power cell leaves the remaining cells active, which allows the VFD to continue operating at a voltage a at least 80 percent, or up to 92 percent speed on a centrifugal load. This serial cell configuration is central to the bypass feature.

Watch the video below to learn more abut this technology.