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Energy and Power Generation

Energy and Power Generation Position Sensors

ASG specializes in linear position sensors and electronics for steam control valves with its S2A LVDT signal conditioner, PG and LA LVDTs, and GE/Westinghouse LVDT/LVRT designs. The PG and LA (single, dual and tri-redundant) series LVDTs are replacements for GE and Westinghouse steam turbine LVDTs and half-bridge sensors but with added features such as an encapsulated core, double shaft seals, and terminal connections for larger wire sizes. The S2A LVDT signal conditioner can be used with LVDTs, half bridge sensors, and GE gas turbine LVDTs. ASG also offers GE gas turbine LVDTs (pt# 311A5178), GE steam turbine LVRTs (pt#s 119C9638, 119C9639, and 196C8768) and Westinghouse LVDTs (pt# 738J204).

Need help deciding which sensors is right for your application? Have questions about a particular product? Speak to an experienced application engineer at H. G. Schaevitz Alliance Sensors Group by calling us at 856-727-0250 or contact us by clicking here.

AC LVDT Linear Position Sensors PGSD Series for Power Generation Steam Control Valves

 Linear Position Sensors Specifically Designed and Engineered for Applications in Power Generating Steam Turbine Control Systems

The Alliance Sensors Group PGSD Series linear sensors are the first LVDT-based valve position sensors designed and engineered specifically for applications in electric power generating steam turbine control systems. Many features of the Alliance Sensors Group PGSD Series Position Sensors were requested by power gen controls engineers and are embodied in the PGSD Series Super Duty LVDT. The PGSD Series Position Sensors are available in full ranges from 3 to 15 inch, (76 to 380 mm).  

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LVDT Signal Conditioner DIN Rail Mounted S1A Series SUPERCEDED BY S2A

The S1A DIN-rail-mounting smart LVDT Signal Conditioner module from Alliance Sensors Group ends the difficulties that accompany AC-LVDT setup with built-in null indicators and front panel pushbuttons to set zero and full scale output. Engineered to work with the widest range of AC-LVDTs and inductive half-bridge LVRTs, the S1A module offers a choice of 4 excitation frequencies and 8 analog outputs, operates LVDT sensors with over a 40 dB dynamic range of AC output, indicates most common system failures, and incorporates a 2-wire RS-485 digital communications port. Along with color-coded plug-in screw terminal connectors and a 2 year warranty, these are just a ...

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AC LVDT Linear Position Sensor LA-27-A Series

Alliance Sensors Group LA-27-A series LVDT linear position sensors are designed to handle extreme industrial environments. This robust linear sensor has a thick wall aluminum housing (also available in stainless steel), a core enclosed inside of the core extension rod assembly that cannot break loose, while offering a sturdy male thread for easy mechanical connection, and a pair of double contact shaft seals to keep fluids and solid contaminants out of its bore. The sensor’s electrical termination includes the choice of an axial connector or a cord grip with a cable.
An LA-27-A LVDT is ideal for roller gap positioning, head box feedback, process ...

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AC LVDT Linear Position Sensors PGHD Series Power Generation Steam Control Valves

Alliance Sensors PG Series LVDT linear position sensors are designed and engineered specifically for steam turbine valve position control system applications in electric power plants. Many of the features incorporated in the design were actually requested by power generation controls engineers. PG sensor models include the PGHD Heavy Duty LVDT and the PGSD Super Duty LVDT. Both PG versions are available on special order as mild radiation resistant for operation in BWR nuclear power plants. The PG Series LVDT linear sensors are heavy duty, from the wire connection terminal block inside an IP-68 sealed heavy wall housing to the 3/8 inch outside diameter core rod ...

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LVIT Linear Position Sensor LV-45 Series

Alliance Sensors Group LV-45 series LVIT (Linear Variable Inductance Transducer) position sensors are specifically targeted for measuring applications requiring rugged devices, whether measuring position of steam turbine valves, mounted in a paper mill head box or calender roll stand, or operating outdoors fastened to a bridge or structure. LV-45 sensors use a contactless inductive technology that allows them to replace other technology sensors like potentiometers and DC LVDTs in most applications. With a simple coil design, a captive connecting rod, and a thick-walled housing, the sensors are both shorter and more robust than their DC-LVDT counterparts while ...

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GE and Siemens Westinghouse Steam Turbine Control Valve Position Sensors.

We offer the following part numbers for GE and Siemens Westinghouse Steam Turbine Control Valve Position Sensors. This includes sensors for conditioning, stop, feed water boiler pump valves and other control valve position sensors in Steam Turbine Control systems.
 
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AC LVDT Position Sensor LA-21-A series

The LA-21-A series AC LVDTs offers the robust designs for which Alliance Sensors Group is known in typical industrial packages, with full ranges from 3 inches (75 mm) to 15 inches (375 mm). They are supplied in a zinc-plated-steel 0.805 inch (20.5 mm) diameter housing with 4-inch (100 mm) stripped-and-tinned axial leads. Each LVDT’s core is enclosed in a 3/8 inch (9.5 mm) diameter extension rod from which it cannot break loose and has a 5/16-24 UNF or M8 X 1.25 male thread for easy attachment. LA-21-A AC-LVDTs are ideal for stamping or drawing press die opening, injection molding machine platen position, process valve controls, and roller gap feedback in ...

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AC LVDT Linear Position Sensors PGxR Mild Radiation Resistant Series Power Generation Steam Control Valves

LVDT Position Sensor Power Generation Control Valve

Specifically Designed and Engineered for Applications Where Radiation is Present in Power Generating Steam Turbine Control Systems

The Alliance Sensors Group PGxR Series linear sensors are the first LVDT-based valve position sensors designed and engineered specifically for applications in electric power generating steam turbine control systems where radiation is present. Materials selected for the Alliance Sensors Group  PGxR Sensors allow the sensor to survive a dose of 30 Mrads for 40 years. The PGxR series comes in 2 versions- the PGHR heavy duty LVDT and the PGSR super duty LVDT. PGxR Series sensors are available in full ranges of 3 inches 6 inches, 9 inches, 12 inches, and 15 inches.

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AC LVDT Position Sensor Heavy Duty LA-27-R Series

Alliance Sensors Group’s LA-27-R series of AC-LVDT linear position sensors have been designed for use in steel, aluminum, and paper mills; fluid power systems; and steam or hydro power plants. These heavy duty sensors use a thick wall aluminum housing (stainless steel available) with an open bore and radial terminations that include a cable in a cord grip, a heavy duty industrial connector, or an optional high temperature connector, with which the LA-27-R is a natural choice as a heavy duty replacement for older through-bore LVDTs with a radial connector found in some steam power plants for valve position.
The core of the LA-27-R is enclosed in a ...

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AC LVDT Position Sensor LA-20.6 Series

The LA-20.6 series AC-LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are contactless devices designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, robotic assembly systems, and throttle position feedback. This general purpose linear device has excellent price-to-performance and stroke-to-length ratios, making the LA-20.6 AC-LVDTs ideal for use in test and measurement laboratories, industrial automation equipment, and many OEM positioning applications.

LA-20.6 series AC-LVDTs are offered in 11 ranges from ...

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AC LVDT Spring Loaded Linear Position Sensor LAS-19-A Series

The LAS-19-A series AC-LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are spring loaded, hermetically sealed, contactless devices designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, robotic assembly systems, pharmaceutical and food manufacturing, and outdoor or wet environment applications. This ruggedized linear device has excellent price-to-performance and stroke-to-length ratios, making the LAS-19-A AC-LVDT sensors ideal for use in power generation and industrial automation equipment, and many OEM positioning ...

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AC LVDT Spring Loaded Position Sensor LAS-19-R Series

The LAS-19-R series AC LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are spring loaded, hermetically sealed, contactless devices with a radial connector, designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, various robotic assembly systems, pharmaceutical and food manufacturing, and outdoor or wet environment applications. This ruggedized linear device has excellent price-to-performance and stroke-to-length ratios, making the LAS-19-R AC LVDT sensors ideal for use in power generation and industrial automation ...

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AC LVDT Position Sensor Hermetically Sealed LHA-19-A Series

The LHA-19-A series AC LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are hermetically sealed, contactless devices designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, robotic assembly systems, pharmaceutical and food processing, and outdoor wet environment applications. These ruggedized linear devices have excellent price vs performance and stroke-to-length ratio, making the LHA-19-A AC-LVDT sensors ideal for use in power generation and industrial automation equipment, and many OEM positioning ...

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AC LVDT Linear Position Sensor Hermetically Sealed LHA-19-R Series

The LHA-19-R series AC-LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are hermetically sealed, contactless devices with a radial connector, designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, robotic assembly systems, pharmaceutical and food manufacturing, and wet environment applications. These ruggedized linear devices have excellent price vs performance and stroke-to-length ratio, making LHA-19-R  AC-LVDT sensors ideal for use in power generation and industrial automation equipment, and many OEM positioning ...

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LVDT Signal Conditioner DIN Rail Mounted S2A Series


Alliance Sensors Group's model S2A DIN-rail-mounting LVDT signal conditioner is designed specifically for the power generation industry. It offers comprehensive diagnostics for sensor or wiring failure, real time recalibration of the Full Span and Zero outputs, enhanced ground loop noise rejection, and backward compatibility to legacy S1A signal conditioners. Utilizing front panel push buttons for easy calibration, the S2A is engineered to work with the widest range of LVDT, RVDT, and inductive half-bridge LVRT sensors by providing four excitation frequencies that will operate most AC-LVDTs over a 50 to 5,000 mVrms range of sensor ...

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LVIT Linear Position Sensor LZ-19 Series

The LZ-19 Series of LVIT (Linear Variable Inductance Transducer) position sensors are contactless devices designed for use in factory automation or assembly machinery applications where space is a premium, as well as for external mounting on pneumatic cylinders to sense rod position. The LVIT is offered in nominal full scale ranges from 2.5 to 750 mm (0.1 to 30 inches) with an excellent stroke-to-length ratio. The sensor has a 19 mm (3/4 inch) outside diameter stainless steel or optional aluminum body with a 1m axial cable for I/O connections. The 6 mm (0.236 inch) diameter through-bore of an LZ-19 provides clearance for its 5.2 mm (0.2.00 inch) diameter, ...
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Our Technical Support Staff:  We have more than 150 years and three generations in the position sensor business and are expert application engineers at what we sell. We have real world experience and know how to solve your measurement challenges. Need technical help with your measurement application? Call us today 856-727-0250. 

Our Web Site: We are constantly improving our website and adding new sensors to our product offerings.

 

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