Reliability considerations in simple paralleling applications

04/10/2013


Service and support

One of the first questions that should be considered when choosing a supplier of a paralleling system is how the system will be supported in the future. Properly supporting all the system’s equipment requires a diverse skill set. Working with a supplier that has a proven track record of designing, installing, and maintaining complete paralleling systems is the best way to ensure reliable operation over the life of the system. Questions to ask include: 

  • Have the service technicians been trained and certified by the manufacturer on all components of the paralleling system? Claims that an engine dealer technician can service a paralleling system should be viewed with skepticism.
  • Have the service technicians been certified with the make and model of engines being used in the application? Suppliers that use engines from different manufacturers may require different service organizations to support systems within the same geographical region.
  • Does the service organization offer comprehensive maintenance programs for the entire system?
  • Does the service organization have a demonstrated history of supporting paralleling systems in many different types of applications?
  • What is the availability of replacement parts? Power transfer devices will often need to be replaced after faults. Replacing a proprietary contactor rather than a paralleling circuit breaker can result in a system being down for a significant period of time. Replacing a proprietary component with a standard one may not be acceptable if the new device isn’t listed for use with the existing overcurrent protection.
  • If a control needs to be replaced, is custom programming required for the replacement control and who is authorized to do the programming? What is the time frame for replacing the control? 


Anonymous , 05/08/13 10:25 AM:

Excellent Article.
VISH , CA, United States, 05/08/13 12:53 PM:

Some of the increased cost of the parallel system can be off-set by Peak Load shaving technique. Illustration of Pros and cons of the system will greatly help the engineers to make the right decision.
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
Each year, a panel of Control Engineering editors and industry expert judges select the System Integrator of the Year Award winners.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Learn how to create value with re-use; gain productivity with lean automation and connectivity, and optimize panel design and construction.
Go deep: Automation tackles offshore oil challenges; Ethernet advice; Wireless robotics; Product exclusives; Digital edition exclusives
Lost in the gray scale? How to get effective HMIs; Best practices: Integrate old and new wireless systems; Smart software, networks; Service provider certifications
Fixing PID: Part 2: Tweaking controller strategy; Machine safety networks; Salary survey and career advice; Smart I/O architecture; Product exclusives
The Ask Control Engineering blog covers all aspects of automation, including motors, drives, sensors, motion control, machine control, and embedded systems.
Look at the basics of industrial wireless technologies, wireless concepts, wireless standards, and wireless best practices with Daniel E. Capano of Diversified Technical Services Inc.
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
This is a blog from the trenches – written by engineers who are implementing and upgrading control systems every day across every industry.
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.