TS110

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The TS110 is a self-powered electronic governor designed for single-valve steam turbines and reciprocating engines. A 9V battery provides enough power to the integral I/P converter to initially open the steam control valve. Once the turbine is running, the speed probes provide speed measurement and enough voltage to continue powering the TS110. The TS110 is applied to both generator and mechanical drive applications where there is no external power available, often in remote location steam turbines or mechanical governor retrofits. The TS110 is used on a wide variety of applications including process fans, pumps, and compressors. Major features of the TS110 include:

  • Self Powered – Operates without external power
  • Isochronos (PID) and droop (PIP) speed/load control – Provided for both generator and mechanical drives
  • Dual pickup selector circuit – With lost signal indication
  • Remote speed setpoint – Allows control from external signal
  • Modular Design – All components, including the controller board, can be replaced in minutes, minimizing downtime
  • Integral I/P – Provides 3-15 PSIG air signal
  • Remote Start Capability – Can be started by an external signal
  • Underspeed Switch – On an underspeed condition, a TS110 controlling a turbine that has lost speed can start a backup turbine controlled by a second TS110
  • Electronic Overspeed Trip Relay – Allows precise selection of overspeed trip for additional protection
  • Digital Tachometer Readout – Eliminates the need for vibrating reed tachometer
  • Accommodates 1 and 2 magnetic pickups – Pickup select circuit keeps unit running on a single pickup to increase availability
  • Nonlinear Gain – Dampens output pulsations in reciprocating engine applications
  • Rugged Design – NEMA 4X SS weather-proof enclosure standard

Typical Configuration

The TS110 utilizes one or two high-power magnetic pickup(s) for power and speed signal. The tooth of a ferrous gear passing under the magnetic pickup creates an AC pulse. This pulse is converted to a DC voltage to power the controller. The pulse rate (or frequency) is also converted into a DC voltage that is compared to a setpoint voltage. The difference is sent through a Proportional/Integral/Derivative loop and converted to a current signal to drive an I/P (current to pressure) transducer. The I/P transducer converts the signal to a 3-15 PSIG (pounds per square inch, gauge) low consumption air signal. The air signal is sent to a pneumatic diaphragm actuator and air booster or a piston type actuator with positioner, depending on size and specifications of the turbine. The actuator is coupled directly, or through linkage, to the valve stem.

Specifications

Inputs

  • Speed Sensors: 2 ea. (3 Vrms / 15 mA, 200 – 10,000 Hz)
  • RemoteStart: 4-20mA or 5V/4mA
  • Setpoints: Local potentiometer, Remote potentiometer, Remote 4-20 mA, Remote 3-15 psig
  • Switches: Overspeed test, Run switch

Outputs

  • Actuator: 3-15 psig, 2.0 CFM at nominal 20 psig supply
  • Supply Pressure: Min: 18 psig / Max: 50 psig
  • Overspeed Trip: Isolated SCR, 400 V max, 0.3 A, max, 0.15 A min.
  • LowSpeedSwitch: 5V/4mA
  • Analog Tachometer: 0 – 50μA
  • Digital Tachometer: 5V pulse
  • Speed Regulation: Exceeds NEMA D
  • Area Classification: Non-incendive Class 1, Gr. A,B,C,D, Div. 2

Power Supply

  • N/A – Self Powered

Display

  • Integrated operator interface including digital tachometer readout, run/stop/start and speed setpoint switches

Environmental Specifications

  • Temperature: -20°F to 160°F
  • Humidity: 0 – 95% non-condensing

Dimensions

  • Surface mount: 12.22”h x 12.22”w x 6.1”d