The gas turbine governor system was upgraded by TCL in 2010; however, this didn’t include upgrading their Dial-A-Megawatt controller from the 1980’s. This system would allow the employee’s at Enfield to remotely dial there MW output at Taylor’s Lane.
The Dial-A-Megawatt controller was outdated; this was causing the MW output value at Enfield’s remote monitoring system to be incorrect.
TCL were contacted by the engineer at Taylor’s Lane to improve the reliability of the of the remote monitoring system’s feature to dial a megawatt setpoint.
Once our engineer was on site they looked at the issue and quickly came up with a solution. Rather than going via several signal cables through the old dial-a-megawatt controller, we took the inputted value from the remote monitoring system and sent it into the TCL PLC. This would allow the PLC to calculate the fuel adjustments needed and either raise or lower the speed of the gas turbine.