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Automated Motor Winding Drying Machine (ADM)

Many electric motors inside or outside a plant have a history of not meeting their Polarization Index (PI) Acceptance Criteria, especially with the older insulation systems found in these motors. Most of these test failures can be attributed to moisture intrusion. Before a motor can be returned to service, or before a high potential test can be performed, the windings usually require a dryout of the moisture to minimize premature insulation failure.

The conventional process of drying out motor windings is very tedious, timeconsuming, and inefficient. It usually involves circulating current utilizing welding machines, which are not designed for that task. This can be a very laborintensive process, and can cause winding and insulation damage in the motor as well as damage to the welding power supply.

Product Specifications Request A Quote Custom Solutions

Item No. 49503


Cost-Efficient Solution

The Series 1200ADM from Bolttech Mannings USA addresses all aspects of this problem. This Automated Motor Winding Drying Machine (ADM) provides for fully automatic temperature control in the motor windings. It has operator-adjustable current limiting, temperature rate-of-change to dryout temp, and duration to be held at dryout temperature. It also provides for fully automatic switching of current through the windings, assuring uniform heating of all windings.

Controlled Monitoring and Data Recording

This ADM process is continually monitored with pertinent data logged to disk for later analysis and review. A Time/Temperature trend chart is always displayed on the screen, or historical data can be called up for review. Data for any selected period can be downloaded from this screen to a floppy disk for historical record keeping and for review in a standard spreadsheet application. The 1200 ADM incorporates a touch screen Pentium computer in the operator's console that provides the man/machine interface, allowing an operator to change modes of operation or significant parameters in a given mode. Full password protection is provided to prevent any unauthorized or inadvertent changes.


Safety Features

  • Internal breaker protection.
  • Automatic shutdown on loss of temperature signal.
  • T/C-RTD scanner selects hottest of three connected sensors to control process.
  • Rotating strobe light indicates mains power applied to primary power transformer; the computer screen will flash a warning and strobe extinguishes in event of anomaly.
  • External panel electrical interlock system prevents application of power when panels are not in place.
  • Positive mechanical breaker selection feature permits operation of system from either 60-amp or 200-amp connected service.
  • Software password protection prevents unauthorized system parameter changes.
  • Connected windings grounded between switching to eliminate residual current/voltage.
  • Switching delay feature prevents operations of contactor when powered.

Products

  • Bolting
    • Hydraulic Wrench
      • Square Drive
      • Low Clearance
      • Convertible
    • Pneumatic Torque Wrench
    • Tensioners
      • Top Side Hydraulic Stud Tensioners
      • Gas Turbine
      • Steam Generator Manway System
      • Hydraulic Nuts
    • Lokrite Safety Backup Wrenches
    • Nut Splitters
    • Stud Removal and Driver
    • Hydraulic Pumps
    • Hand Tools
      • Torque Wrenches
      • Torque Multipliers
    • Accessories
      • Hoses & Fittings
      • Flange Spreaders and Alignment
      • Ultrasonic Bolt Measurement
      • Portable On-Site Thread Cleaners
  • Custom Solutions
  • Thermal
    • Induction
    • Combustion
    • Resistance
      • On-Site Heat Treating
      • BM256 Programmer/Controller
      • Motor Dryout System
      • Turbine Warming System

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