All data points received from each unit are streamed into the RMC every one to three seconds, and stored for no less than two years for historical reference, making this system a very dynamic troubleshooting tool.
Approximately 1,000 to 3,000 data points are monitored for each gas turbine configuration, including all of the auxiliary system information. Examples of parameters monitored for a standard gas turbine unit include:
- Ambient Conditions
- Hot Gas Path Conditions
- Combustor Dynamics (CPFM)
- Control System Features
- Vibration Indications
- Valve Demand, Position and Feedback Signals
- Auxiliary System Parameters
- Alarm Indications and Set Points
While most of their competitors will do a batch summary of the information once or twice per day, Mitsubishi receives continuous data stream of thousands of points of data per second in real time. All of this data comes back to their OSISoft PI System in the Orlando monitoring facility where they use Exele TopView Alarm Management Software to congregate the alarms from every monitored installation, globally. Exele TopView provides audible, visual and even email alarm message notification to the RMC Staff. Any unexpected deviations alert the RMC staff to take immediate action.
Alarm Management and Notification
About a year ago RMC looked to find an alarm management package that could serve their needs. "The alarm management package that we had been using for years was no longer supported by the manufacturer" said Daryl Massey, Manager of the Remote Monitoring Center. "In addition, we had outgrown the package as we continued to add to the number of monitoring points so we ran into more and more issues." They choose Exele TopView Alarm Management and Notification Software. "TopView had a lot of benefits. It's very flexible, it offers several notification options and the support has been great", said Massey.