On-Line Motor Diagnostic Option
on-line motor analysis

Order Number:
[AMD]

AMD On-Line Motor Diagnostic Option
 

The Advanced Motor Diagnostics Option (AMD) combines the power analysis
capabilities of the PS4000 with EMPATHTM, the proven on-line motor diagnostics
software of Framatome ANP (http://www.empath.ws/_wsn/page3.html).  

Compare these features with off-line motor analyzers:

  • Evaluate motors without taking them off line.  Avoid costly down time, loss of service, time-consuming maintenance activities.

  • Evaluate motors at the motor control center (MCC).  A centralized, safer, cleaner, quieter site allows for more efficient and safer evaluation in as little as 3 minutes per motor.

Compare these features to other on-line motor analyzers:

  • Work with all types of motors.  Induction, synchronous, DC, wound rotor, and induction with VFD type motors can be evaluated

  • Diagnose wide range of motor problems.  Rotor/armature health, stator mechanical/electrical health, field coil faults, bearing health, eccentricity, loose connection problems, etc

  • Complete power analysis of motors.  Voltage and current levels, imbalances, phasor diagrams, power and power factor, harmonic distortion, complex impedance

  • Diagnose problems with the driven load.  Detects misalignment, unbalance, looseness, bearing damage, belt passing, gear meshing, gear and belt faults

  • Plain language reporting.  The reports are clear and organized, with checkmark summaries indicating what problems have been detected in each area.

  • Evaluate motors effectively.  An extensive database of thousands of motor models listing rotor bars and stator slots allows checking of running speed, slip, pole passing frequency, derating factor, slot counting.

  • Predictive maintenance assistance.  Maintaining a performance history for each motor allows spotting trends indicative of approaching failure.

This option provides the benefits of Electrical Signature Analysis (ESA) in order to evaluate motors and their driven loads while the motor is running.  ESA allows PowerSight, combined with EMPATHTM software, to do a complete frequency analysis of motor current from 0 to 5000 Hz and then analyze it using complex algorithms in order to detect the dynamic operating characteristics of the motor and its load.  The benefits are fast evaluation of motors without powering them down.  Once you use it, you will see that this is the best overall on-line motor diagnostic package available. 

 

List of Features for the AMD Option

Features - Motor Analysis

Motor types

Induction

Synchronous

DC

Wound Rotor

Induction with VFD

  Rotor health

Yes

No

N/A

Yes

Yes

  Armature health

N/A

N/A

Yes

N/A

N/A

  Stator mechanical health

Yes

No

N/A

Yes

Yes

  Stator electrical health

Yes

No

N/A

Yes

Yes

  Turn-to-turn short

Yes

Yes

N/A

Yes

Yes

  Static eccentricity

Yes

No

N/A

No

Yes

  Dynamic eccentricity

Yes

No

N/A

No

Yes

  Stator slot count

Yes

No

N/A

No

Yes

  Rotor bar count

Yes

No

N/A

N/A

Yes

  Field coil faults  *1

N/A

Yes

Yes

N/A

N/A

  

  Current rms value

Yes

Yes

Yes

Yes

Yes

  Current unbalance

Yes

Yes

N/A

Yes

Yes

  Inrush current

Yes

Yes

Yes

Yes

Yes

  Complex impedance

Yes

Yes

N/A

Yes

Yes

  Motor load

Yes

Yes

Yes

Yes

Yes

  Derating factor based on current

Yes

Yes

N/A

Yes

Yes

  Derating factor based on voltage

Yes

Yes

N/A

Yes

Yes

  Motor efficiency in report

Yes

No

No

No

Yes

  Bearing & motor database analysis

Yes

Yes

Yes

Yes

Yes

  Running speed

Yes

Yes

Yes

Yes

Yes

  Slip

Yes

N/A

N/A

Yes

Yes

  Pole passing frequency

Yes

N/A

N/A

N/A

Yes

  Brush passing  *1

N/A

N/A

Yes

N/A

N/A

  

  Loose connections

Yes

Yes

N/A

Yes

Yes

  Hunting *1

N/A

Yes

N/A

N/A

N/A

  

  DC drive faults (SCRs, controls...) *1

N/A

N/A

Yes

N/A

N/A

  

  Volts/Hz ratio *1

N/A

N/A

N/A

N/A

Yes

  

*1 can be determined by operator by evaluating the graphs


Features - Driven Load Analysis

Motor types

Induction

Synchronous

DC

Wound Rotor

Induction with VFD

  Looseness *1

Yes

Yes

Yes

Yes

Yes

  

  Belt passing *1

Yes

Yes

Yes

Yes

Yes

  

  Gear meshing *1

Yes

Yes

Yes

Yes

Yes

  

  Gear box faults *1

Yes

Yes

Yes

Yes

Yes

  

  Belt faults *1

Yes

Yes

Yes

Yes

Yes

  

  Base looseness *1

Yes

Yes

Yes

Yes

Yes

  

  Gear faults *1

Yes

Yes

Yes

Yes

Yes

  

  Misalignment

Yes

Yes

Yes

Yes

Yes

  Unbalance

Yes

Yes

Yes

Yes

Yes

  Bearing damage

Yes

Yes

Yes

Yes

Yes

  Soft foot *1

Yes

No

No

No

Yes

  

*1 can be determined by operator by evaluating the graphs

Features - Power Analysis