Other Products / Services #4555456

The 512524 and 17121724 EPGs are three-component governing systems for 12 or 24 Vdc operation. All EPG systems include an actuator, an electronic speed control, and magnetic pickup.

Isochronous electronic controls are available with either start-fuel limit or with switch-selected dual dynamics.

Droop controls are available for certain types of parallel generator application. Load sharing devices are available for use with the isochronous models used in paralleled applications.

The selected EPG actuator is mounted on the prime mover and mechanically linked to the fuel control. The rotary design and output shaft on both ends gives 30 (512524) or 35 (17121724) clockwise or counterclockwise travel to low-mass, low-friction fuel linkages. Preloaded internal return springs supply the shaft torque in the decrease-fuel direction and for shutdown should the electronic control signal be lost.

A rugged cast aluminum housing permits installation of the speed control on the engine skid. In operation, the control compares the speed of the engine with the desired speed or desired load and sets the actuator position to correct discrepancies. Gain and stability adjustments tailor the governors response to the specific engine.

EPG controllers with switch-selected dynamics allow stable operation at no load and brisk response when the unit is heavily loaded.

Woodwards Current to Pressure Converter (CPC-II) is an electrohydraulic pressure regulating control valve used to position single-acting steam turbine valve servosactuators. The CPC-IIs superb accuracy and resolution make it ideal for steam turbine valve control and related turbine speed and load control.

The CPC accepts a 4-20 mA pressure demand signal and accurately controls oil pressure to precisely position single-acting steam turbine governor-valves. Precise and stable steam valve control directly relates to improved steam turbine speed and load control and reduced system mechanical wear.

The EHPC is a linear integrating actuator typically used for steam turbine control-valve or valve-rack positioning. This actuator uses a low-pressure (80250 psi 5521724 kPa) hydraulic oil source and then uses three amplification stages to create the required output shaft force. As a custom (made to order) actuator, the EHPC is an actuator that is configured designed and manufactured specifically for the application. The EHPC has the flexibility to be ordered with the following configuration options:

- li Single or double acting cylinder action - li Stroke & cylinder bore options - li Extend or retract current to position direction - li Top or bottom mounting attachment - li Single or dual coil input actuator torque motor - li With or without return spring - li 420 mA or 010 Vdc cylinder feedback signal - li Optional 1st & 2nd stage oil supply - li 2nd stage spring bias option - li 3rd stage spring bias option p This actuator accepts a 0200 mA (100 mA null, with an optional 15 mA null) input control signal, to position its output cylinder shaft, and outputs a 420 mA or 010 Vdc servo position indication feedback signal. An integrating actuator driver (such as a MicroNetTM actuator controller module) or an external servo position driver (such as the Woodward SPC servo position controller) is required to drive and position the EHPC. p The EHPC includes electrical position sensing on the output of the large power cylindera combination that, when used with a compatible electronic or digital control, results in powerful steam valve movement with pinpoint accuracy. The EHPC is driven by oil pressure supplied by either the turbines lubricating-oil supply or from an external independent oil supply and can be operated in any attitude.

EHPC

Woodwards Hydraulic Amplifier is a linear electro-hydraulic actuator designed to operate steam turbine control valves or valve racks. This integrated actuator is intended for use on mechanical-drive or generator-drive steam turbines, and uses a low-pressure hydraulic oil source (typically turbine lube oil) to provide its output shaft force.

The Hydraulic Amplifiers superb accuracy and resolution make it ideal for steam turbine valve control and related turbine speed and load control.

Woodward APECS linear actuators provide proportional fuel control for construction, industrial, and agricultural equipment, forming the foundation of full electronic governing systems. These actuators are suitable for speed governing on generator sets, forklifts, pump sets, wood chippers, pleasure boats, and many types of off-road vehicles.

The actuators are easily mounted near the fuel system and direct connected to the fuel control rod or lever. In most installations, the normal rotary-to-rotary connection is eliminated, resulting in a more trouble-free and accurate control system.

The EM-80 and EM-300 are all-electric actuator systems that provide 40 degrees of actuator output rotation. Each system consists of a three-phase brushless ac motor which drives a high-precision planetary reduction gear box. A dedicated driver controls the actuator position and allows monitoring of most features.

PCWindows based software facilitates the system setup. The EM-80 and EM-300 are freely programmable to meet many customer requirements.

The Woodward L-Series Integrated Engine Control System is the first engine speed control to deliver so much in a package this compact. It can also deliver a big savings in production and field support. Since the L-Series Control System is microprocessor-based, it can easily be programmed to match the operating parameters of every engine you produce. The

With many built-in functions, this microprocessor-based speed control allows a high-volume OEM or packager to stock one part number, but implement a wide variety of engine control strategies by configuring the four auxiliary inputs at their factory.

Besides the traditional bracket mount using external linkage, the L-Series Control System is available in a variety of mechanical configurations, including one integrated into a rotary diesel fuel pump and one integrated with a throttle body or a throttle body and mixer (product spec 03222). The externally mounted systems can be configured for clockwise or counter-clockwise (standard) shaft rotation for increasing fuel.

The L-Series controls high-efficiency torque motor delivers 0.34 Nm (0.25 lb-ft) nominally over 60 travel range to operate fuel or air control devices (see specifications for torque performance offer the full product temperature range).

Woodwards SPM-A speed and phase matching synchronizer provides automatic frequency and phase matching when used with 2301, 2301A, and EPG (Electrically Powered Governor) electric load sharing control systems.

Woodwards SPM-D synchronizer is used on steam turbines with three-phase AC generators utilizing compatible speed controls and automatic voltage regulators.

The SPMD provides automatic frequency, phase and voltage matching, using either analog or discrete output bias signals (depending on model). The SPM-D digitally measures true rms values, ensuring measurement accuracy and maintaining integrity against harmonics, transients, or power spikes. A quick-mains decoupling function permits the SPM-D21 to operate in mains- parallel applications without additional external protection relays.

The BL18 is a versatile direct voltage supply unit t hat can be applied both, as battery charger and as stabilized power pack supply unit. If applied as battery charger, the BL18 serves to ei ther charge or to maintain closed or gas-proof 24 V lead-acid batteries in full charge condition by providing the facility to simultaneously supply consumers with DC cur-rent (parallel operation). W hen the BL18 is operated in parallel with a bat- tery or with another consumer and the battery has to be disconnected, e.g. for maintenance or ex- change, the supply of this consumer will be backed- up to the battery chargers nominal capacity.

Thanks to the units short-circuit capacity, it must not be switched off in case of short-circuit type occurrence, such as e.g. start of a Diesel engine or similar situations.

As stabilized power pack supply unit, the BL18 supp lies connected consumers with a stabilized DC voltage that can be adjusted within a r ange of 24V to 27.5 V andor 12 V to 24 V

Magnetic pickups (MPUs) are speed sensors that detect the speed of a prime mover, typically an engine or turbine. They are the communication link between your engine and a Woodward electronic governor control. The MPU is installed next to a drive shaft gear made of a material that reacts to a magnetic field. As each gear tooth passes the MPU, the gear interrupts the MPU's magnetic field, and an alternating voltage is developed. The frequency of this voltage is translated by the speed control into a signal that accurately depicts the speed of the prime mover.

Woodwards magnetic pickups can be used with most electronic speed controls. Models are available for hazardous location installation.

Woodwards UMT 1 Series consists of measuring transducers that feature true RMS sensing. Measured values are calculated and displayed on a two-line, 16-character LC Display. They can either be assigned to analog outputs (configurable as -20 to 20 mA, 0 to 20 mA, or 4 to 20 mA) or transmitted to a higher-level control system via RS-485 or Profibus DP interface.

The primary measured values of voltage and current are used to calculate the values for active, re-active, apparent power, power factor (cosphi), kWh and kvarh. An impulse output is also provided to output kWh or kVarh values.

RTCnet is a rugged distributed IO solution for use with Woodward turbine controls. It is the first distributed IO that not only supports Woodwards deterministic rate- group, real-time operation, but that is also fully synchronized with the main control processor. RTCnet offers Woodward customers all the benefits of MicroNet real-time performance in a distributed, compact solution.

RTCnet features redundant CAN communication ports for high availability in demanding turbomachinery applications. It can be used for high performance control loops where general purpose, asynchronous distributed IO cannot.

RTCnet has an ultra -rugged, all metallic DIN-rail mount packaging suitable for skid mount and turbine enclosure installations. The lightweight packaging can sustain high vibration, 40 G shock, and a wide (40 C to +100 C) temperature range. It is marine compliant (e.g., rated for high-humidity areas). It also has 500 V (ac) isolation to protect against damage due to wiring errors and to ensure reliable operation in the harshest EMC environments.

The L&S-400 Distributing Valve is a high pressure, low volume valve for hydroelectric turbine governors

Higher performance than mass produced two stage valves
Cost effective spare parts
Digital driverdiagnostics system with digital communications
Design allows for the mounting of valve assembly near or at servos for best valvehydraulic stability, and for most cost effective piping arrangements

Woodwards ProTech-SX SIL 2 PLC safety system applies to steam, gas, or hydro turbines, plus plant process equipment.
This stand-alone safety system accepts two speed inputs and seven discreteanalog inputs, uses programmed logic to determine when a safety event has occurred, then issues system shutdown commands and alarms. The ProTech-SX uses five fast-acting, configurable relay outputs and a speed meter output to interface withcommand the specific system or device being protected.

The programmable Hydro 508 controller drives electric generators for hydro turbines for its hydraulic control system or auxiliary functions. Its configurable program caters for both Francis and Kaplan turbines.

Woodwards MicroNet programmable control is applied on any prime mover and its processes including sequencing, surge, vibration, stationhigh speed system control and monitoring. The MicroNet digital control is available in both simplex and triple modular redundant (TMR) configurations.

The ProAct Integrated Throttle Bodies (ProAct ITBs) are butterfly valves electrically actuated by ProAct actuator s to control flow output. With bore sizes ranging from 85 mm to 180 mm, these ProAct ITBs are designed for use with engines in the 1 MW to 2 MW range. This is an electromagnetic actuator with 75 degrees of travel, which alleviates the problems associated with linkages on gas engines (such as setup, non-linearity, and wear).

This direct combination of throttle and ac tuator results in excellent stability and transient characteristics, and requires no hydraulics, pneumatics, or governor gear train. Therefore, you end up with an efficient, long lasting, and easily-installed throttle option.

Woodward, a leader in DLE turbine fuel systems, offers integrated fuel skids designed to meet the requirements of any turbine package. Woodward can custom design, manufacture, and test a fuel metering system for any size gas turbine with up to five parallel metering paths for todays advanced combustion systems. Our DLE fuel control systems are capable of 2.0% of point mass flow accuracy for maximum NOX reduction.

The L-Series Position Controller accepts a position command and drives the 060 degree output shaft to the commanded position based on an internal shaft position sensor. The high-efficiency torque motor delivers 0.34 N*m (0.25 lb-ft) nominally over 60 travel range to operate fuel or air control devices (see specifications for torque performance over the full product temperature range).

The L-Series Position Controller accepts either a PWM, 05 V, or CAN command for output positioning. The command signals are issued by the appropriate supervisory engine management system, and the L-Series must be set up properly in software to expect the correct signal for the application.

For status purposes, a relay driver output is available on the L-Series control which changes state whenever a fault or error condition is experienced by the controller.

The L-Series provides a direct position output signal in the form of a dc voltage if required by the system. The throttle position (TPS) output represents full counterclockwise-to-clockwise rotation of the actuator shaft, and thus gives the operator an external position indication. Besides the traditional bracket mount using external linkage, the L-Series control is available in a variety of mechanical configurations, including integration with diesel fuel pumps, throttle bodies, and mixers (product spec 03222). The shaft rotation can be configured for clockwise or counterclockwise rotation for increasing fuel. For information on Woodward throttle body applications, refer to manual 26249 (ITB and LC-50).

The SOGAV valves are a family of electrically-actuated, high-response gas admission valves for in-manifold (port) fuel admission. The SOGAV valves are designed for use on four-cycle, turbocharged, natural gas or dual-fuel engines. One SOGAV valve is required for each cylinder.

The SOGAV valve is designed to be used as the valve portion of an overall gaseous fuel admission system delivering precise gas mass flow metering per cylinder. This enables gas engines and dual-fuel engines to operate lean burn, increased efficiency, and reduced emissions.

Ask Woodward for information on the newest SOGAV models, which allow a wider range of pressures and improved field service.

Woodwards Swift valve is a highly accurate, low- cost system, which controls fuel to the turbine or high-pressure fuel cell. It is designed for high pressure applications (50250 psia), and the unique design yields a linear flow characteristic unaffected by discharge pressure up to a pressure ratio (P2P1) of at least 0.85. The design integrates the valve and actuator into a compact, efficient assembly.

Woodwards ProTech-GII is an overspeed safety device designed to safely shut down steam, gas, and hydro turbines upon sensing an overspeed or over acceleration event. This device accurately monitors turbine rotor speed and acceleration via active or passive MPUs (magnetic pickups) and issues a shutdown command to the turbines trip valve(s) or corresponding trip system.