TTG-600: Load Control Governors and Unit Controllers
TTG-600 Controllers provide high performance governing by maintaining full load on the Hydro Generator at all times. Any Power not utilized by user loads is automatically diverted into a "load dump" which can be either a water cooled heater in the power plant or air heaters installed around the outside of the power plant building. Because the load is always constant on the turbine, water hammer concerns and complex hydraulic governing calculations are not necessary. Highly accurate governing that easily obtains utility quality of power standards is possible.
Pure load control governing is usually limited to plants smaller than 60 kW in output. Above this limit, TTG-600 controllers can still be used by allowing the controller to roughly adjust the output of the turbine by using simple hydraulics. These methods allow the TTG-600 series to control plants of output of up to about 300 kW in size. If the stand alone plant is bigger than 300 kW, then also consider using the TTG-660 and TTG-601 matched pair.
Wasted energy can be minimized by purchasing TTG-50 load management units. These controls will continually try to turn on additional interruptible loads until there is insufficient wasted energy to turn anything else on.
Off-the-shelf components are used throughout. A keypad and alphanumeric display on the controller panel is used for testing, set-up, and local control of the turbine. No additional equipment or software is required. A PLC platform is utilized for the required logic, allowing flexibility to adapt to future needs. Various turbine types can be accomodated. Various options for Turbine Inlet Valve control, Head Level Control and Communications are avaialble.
Features:
- Sequenced Startup upon a start request
- Sequenced Shut-down upon a stop request
- Highly accurate governing without water hammer.
- Head Level Option available.
- Logic can control up to 250 kW if the necessary power circuits are designed in.
- Communications Options including Internet connectivity is available.