Category: Products

The stationary part of an induction machine is commonly referred to as the stator. The active iron of the stator is called the stator core and consists of thin laminations that make up a rigid structure with slots around the periphery of the core. The copper windings or coils of the stator are installed into the core slots and connected into pole phase groups. The coils are made with one or more turns of round or shaped magnet wire with insulation between the turns and between the conductor and ground. The conductors may be one or more strands.

• Green VPI Stator Coils
• Class F Fully Cured Coils
• Sealed Systems for Harsh Envoronments
• (2) Dacron Glass Serving Lines
• 100% Tested
• Emergency Turnaround
• Stator Coils for Underwater Submergence Test
• Inverter Duty Stator Coils
• PrecisionVAC
• PrecisionSEAL
• PrecisionCURE

Armature Coils and Equalizers for DC Motors and Generators Wound Rotor Formed Coils

The active conductors in the rotating element of DC motors and generators are often referred to as armature coils. These coils are installed in open or semi-closed core slots on the cylindrical surface of the laminated core. Armature coils are made from round or shaped magnet wire with one or more turns. The two sides of an assembled armature coil are subject to the magnetic flux of adjacent stationary poles of opposite polarity in the field frame. The leads of the armature coil are terminated into a commutator.

• Class F and Class H Systems
• Equalizer Cross Connection Coils
• Molded Equalizer rings
• Frog-Leg Armature Coils
• Lap Wound Armature Coils
• Split span
• Emergency turnaround
• Wound Rotor Formed Coils
• Two-piece Coils

Turbine Field Rotor repair and rebuilding including retaining ring inspections, rotor field cleaning, testing, rewind and recondition. In-plant service for turbine rotors including RSO testing, insulation resistance testing, impedance testing and shutdown work.

Rotating Fields for Hydro Generators. Inspection, repair, rewind and re-insulation for edge-wound coils in hydro applications.

Synchronous Rotor repair and rebuilding including rewind and reconditioning for rotating DC fields, amortisseur cage bars and shorting rings.

Wound Rotor Motor repairs including core testing, lamination restack, rotor rewind and slip ring repair and reconditioning.

Squirrel Cage Rotor engineered solutions for industrial applications including hi-torque redesigns and aluminum-to- copper rotor cage retrofits. Shaft manufacturing and repair including 2-Pole boiler feed pump rotors, FD fan rotors and ID fan rotors. New core iron and lamination restacking for stator cores, armatures and rotors.

• Turbine Field Rotors
• Rotating Fields for Hydro Generators
• Synchronous Rotors
• Squirrel Cage Rotor Rebar
• Shaft manufacturing and repair
• Armature laminations
• Double-cage rotors
• Hi-torque Crane Duty Rotors
• Crusher Duty Rotors
• Skewed Slot
• Stator Core Iron Restacking
• 3-Year Warranty on Full Rebuilds

High Voltage coils require detailed design parameters and rigorous quality inspection in order to build a product that can withstand the high electrical and mechanical stresses associated with 13kV motors and generators. Reliability in high voltage coil systems comes from methodical materials selection, rigorous testing, and proven methods in coil manufacturing. Quality
stator coils with quality winding installation helps guard against premature failure from mechanical forces, partial discharge and corona in these machines. Innovations in high voltage coils are emerging with new technology in magnet wire, mica tapes and test equipment for this market.

• B-Stage Epoxy Hot Press System
• Green High Voltage Coils for Global VPI
• Corona and Stress Grading Systems
• Flexible End Arm Option
• Constant Tension 6-Axis Ground Taping Robot for Slot Cells
• Voltage Endurance Test IEEE-1553
• Power Factor Tip Up Test IEEE-286
• Partial Discharge Test IEEE-1434
• Surge Test IEEE-522
• Made in USA