Temperature Spread Monitor
Monitoring the spread of temperature in the exhaust gases can lead to early detection of combustor and burner faults and can prevent catastrophic failure of a plant. TCL have developed a cost-effective solution to gas turbine exhaust temperature spread monitoring.
The TM41-TSM can be configured to monitor up to 24 thermocouple inputs. Standard versions are available for the following gas turbines:
- RR Avon/RB211/Olympus;
- Ruston TD4000/TB5000/Tornado/Typhoon;
- GE Frame 3/5/6/7/9;
- Solar Mars/Centaur/Saturn
- Up to 24 Thermocouple inputs.
- 8 Digital inputs, can be configured for:
- alarm/trip inhibit.
- Remote alarm accept/reset.
- 8 Digital outputs, can be configured for:
- Alarm initiation.
- Trip initiation and indication.
- Sensor fault.
- Hardware fault.
The spread monitor is programmed to perform functions in accordance with engine manufacturer's specification. The functionality for a Rolls Royce Avon, Olympus & RB211 is summarised as:
- Signal validation;– discount faulty inputs and alarm.
- Calculate average of healthy thermocouples.
- Calculate deviation of individual from average.
- Alarm on deviation exceeding alarm setpoint.
- Trip on deviation exceeding trip set point or number of failed thermocouple inputs exceeds set point.
The Operator panel is a backlit ¼VGA graphic monochrome LCD display with keypad.;
Visual Display of important parameters to enable the operator to make quick and informed decisions on the status of the gas turbine. These parameters include:
- Logic I/O Status.
- Bar graph and Digital display of analogue values.
- Alarm and trip alphanumeric message, time and date stamped.
- Trend plot to view temperatures.
Commissioning modes will allow you to ease fault finding, set up forcing of outputs and adjustment of control parameters (Gains, setpoints etc.)