We provide ELECTRIC MOTOR REPAIR and REWIND Services  through 1,500 HP

 Our goal is to provide you with the Best Electric Motor Repair Solution possible and

 the information you need to manage your Maintenance and Reliability programs. 

 At Electromechanex we take pride in reliability engineering, isolating the Root Cause of the Failure and   repairing your motor to the highest possible standards and workmanship with the highest standard of   reporting in the industry, as our intent is to let you know how to prevent the failure from happening again.

As an EASA member, we serve as a total solutions provider for electrical and mechanical equipment and systems, with Full Service and Support capabilities. #electricmotorrepair #motorexperts #machining #expectthebest24/7 #keepingindustrymoving

1.0 Incoming Inspection

Our Motor Repair Shop performs a thorough appraisal of the motor’s condition, as received, to determine what specific repairs are needed as well as to find unsuspected trouble, perhaps unrelated to the obvious defect. Our technicians diagnose cause and effect to help prevent a recurrence. The motor must be inspected visually for parts that maybe missing and/or damaged. any defects or anomalies. The ALL-TEST PRO 7™ Professional (AT7 Pro) empowers technicians to efficiently and accurately evaluate motors in the field or on the shop floor.

2.0 Initial Motor Test Run

Prior to an incoming run test, we perform the following and record information where appropriate: Motor will be mechanically inspected to determine if shaft turns freely, Verify that bearings are lubricated, Insulation resistance tests are performed. As well as , the continuity of stator windings, condition and installation of brushes, Polarization index (where appropriate). Surge test (where appropriate). If conditions permit, the motor will be run at reduced voltage initially (25-50% of rated voltage). If the “As Received” motor conditions permit, the motor shall be run to 100% speed for these tests.

3.0 Dismantle & Inspection

A thorough appraisal of the motor’s condition, as received, is to be performed, to determine what specific repairs are needed as well as to find unsuspected trouble, perhaps unrelated to the obvious defect. Our technicians diagnose cause and effect to help prevent a recurrence. Our appraisal will include a complete review of the following conditions of each part of the motor: General cleanliness, Cracked or broken welds or castings, Missing hardware, Wear or rub marks, including fretting, discoloration, charring, or other evidence of overheating, Looseness at mating fits, Corrosion, moisture, or oil inside the machine. 

4.0 Test Stator Windings

A full test of the winding condition shall be carried out with the motor disassembled. Windings are tested to ensure that there are no grounds, short circuits, open circuits, incorrect connections or high resistance connections. The condition of the windings and the extent of repairs should be determined by inspection and, as necessary, by tests. The Baker AWA 2.2 Advanced Winding Analyzer/Surge Test unit is to be used to carry out the following tests:  2.4.1.1 Winding Resistance and Inductance (Per IEEE 1415)

5.0 Mechanical Inspection

All mechanical parts are to be thoroughly cleaned and inspected for defects, cracks or damage. Visually check rotating components for excessive heating and other abnormalities, as well as an Inspection of condition of rotor, stator windings, baffles etc. Furthermore, measure and record dimensions of the following: Shaft extension, Journal and bearing fits, measure and record bracket fits for housings and bearings, the condition of ball or roller bearing housings. Any damage appraisal of motor components is divided into two categories, electrical and mechanical. 

6.0 Stator Rewinding

Rewind the stator to a full Class “H” insulation specification. Ensure full slot wedges and full phase separation is included. Slot liners are installed for all motors. Coils are formed from continuous lengths of properly sized and insulated magnet wire              (to match nameplate criteria). Insertion of coils in slots is done with extreme care to avoid damage to the insulation or magnet wire. Crossings of magnet wire within the slots should be held to a minimum on random-wound coils.

7.0 Balance Rotor

EMX Shop Balancing Systems are designed to perform measurements of vibrations and calculations in horizontal shop balancing machines and in the field. The motor rotor shall be dynamically balanced in a balance stand, if necessary before assembly of the motor. Rotors are supported at the bearing position. Ref EASA AR 100 Dynamic balancing of the rotating element should be to the level specified by the customer. In the absence of a requested level, dynamic balancing to balance quality grade G2.5 (ISO 1940/1) should enable the machine to meet final vibration limits.

8.0 Assemble Motor

All Electric Motor assemblies are made in accordance with the equipment technical manual and good machine shop practices. All mechanical repairs on shafts, bearing journals, end bells, and other equipment are handled in-house by experienced machinists. Motors will be assembled in a manner that will ensure proper fit and alignment. The assembly of the motor is the reverse of the disassembly process and all match marks shall line up. All assembled components will be checked to ensure secure fits. Bearings packed with BMG Gen 2 Polyurea Motor Grease.

9.0 Final Motor Test

After the insulation tests, the motor shall be run at no load at full terminal voltage, with either a half key or a half coupling, on the shaft. The motor is to be run at nameplate voltage, frequency and speed. Record the no-load current drawn on all phases and document. On squirrel-cage motors, check the current on all connections and check speed of the motor. The current on each phase should be within 10% deviation between any two other phases. A non-load test run will be made on all motors to ensure that all electrical readings do not exceed the Name Plate Data ratings.

10.0 Paint & Protection

At the completion of the test, the motor shall be painted, unless otherwise requested by the customer, with two coats of EM Machinery Gray paint or Customer preferred paint color or type, application-specific paint, such as Food grade epoxy, IP67 epoxy Marine epoxy. Motor products are cleaned and free of any dirt, oil or grease on the primed surface prior to finish painting. Film thickness: 2 to 4 mils. The shaft shall be protected by either a rust and corrosion preventing coating or mechanical impact cover, and prepared for shipment.

Motor Winding Analysis is an ideal method for detecting winding issues and to monitor the dielectric strength of your winding insulation. This method is a necessary aspect of any electric motor preventative maintenance. This program can be used to troubleshoot or eliminate the motor windings as the source of a failure. It can also be used as a trending tool so we can monitor the dielectric strength of your winding insulation over a period of time. With motor winding analysis, our skilled technicians can discover early-stage problems inside electrical equipment before they become more substantial. This early detection method allows us to perform the appropriate repairs during planned downtime; in addition to reducing repair costs during unscheduled shutdowns, motor winding analysis can lessen costs associated with catastrophic component failure. Motor winding analysis is a form of non-destructive testing (NDT) that can be used for motor, transformer, and generator windings.

 ALL-TEST PRO 7™ PROFESSIONAL

 We can test any motor’s resistance, stator, rotor, contamination and insulation stats all     on one device and receive accurate diagnostics within as little as a few minutes.

 In addition to the core functionalities of the ALL-TEST PRO 7™, the ALL-TEST PRO 7™   PROFESSIONAL has additional functionalities that test DC Motor types, Traction motors and   Transformers, and utilizes route based testing for data trending and analysis.

 We provide Testing for:

• Offline testing of AC and DC Motors, Transformers, and Generators
• Testing installation and startup of new motors
• Condition monitoring
• Troubleshooting

 Trouble we can Identify:

• Stator Issues
• Rotor Issues
• Ground Faults
• Winding Faults
• Open Connection Issues
• Contamination Issues