Atec EXP4000, ACLB-72 User Manual
Specifications and electrical requirements
SKF Dynamic Motor Analyzer EXP4000
Integrated testing
capabilities
The SKF Dynamic Motor Analyzer EXP4000 integrates a wide range of
monitoring capabilities which meet
high quality standards. Designed for
in-service monitoring of power circuit
issues, overall motor health, load, and
performance, it gives the user a
comprehensive look at overall motor
integrity. This instrument was
designed for remote monitoring from
the Motor Control Center (MCC) or
through the EP1000 connection. It is
a non-hazardous, low voltage,
battery operated unit, which makes it
highly portable and durable for use in
tight and rugged locations.
Continuous innovation
Continual design breakthroughs
demonstrate our on going
commitment to quality, reliability,
and competitive advantage. This
instrument provides data on degradation
of motor performance and the effects of
overheating on motor operation. Survey
plant wide efficiency, determine load
mismatches, oscillating load and transient
peak energy. Results are immediate,
showing operating efficiencies, thereby
allowing the user to determine the true
cost of wasted energy.
Comprehensive analysis
The S K F Dynamic M o t or Analyzer EXP4000 performs seven major
functions to enhance a P/PM program.
Within these functions evaluate the
incoming power, motor and load utilizing a
system wide approach to predictive
maintenance, troubleshooting and quality
assurance. This motor analyzer offers a
wide variety of capabilities for the
maintenance professional to understand
the condition of the rotating system. It is
programmed to supply information on
voltage level, voltage balance, harmonic
and total distortion, rotor cage condition,
motor efficiency, effective service factor,
overcurrent, operating condition, torque
ripple, load history among others. This
wide range of tests allows exploration of
the true condition of motor integrity and
conditions related to motor performance.
Advanced data collection
and organization
Once testing is completed, results can be
saved and stored for each motor. This type
of documentation i s c r i t ical f or any m a i n t enance program. It allows the recalling of
information for true trending capabilities.
Test results are managed using standard
MS Access relational database file formats.
Reports can be quickly generated through
the main print console, allowing operators
visual confirmation of motor integrity.
The software and data transfer package
enables the creation of multiple databases
to organize collected data to specifications
set by users. This eases communication
channels by handling data in a manner
that is useful, complete and accessible.
Test domains
harmonics tests. These issues identify
improper tap settings on supply transformers, poorly distributed single phase
loads, overloading (saturating) supply
transformers, excessive VFDs on low
voltage busses, excessing non-harmonic
frequencies on a VFD, missing line
inductors on VFD applications, missing or
open power factor correction capacitors
along with high resistance connections.
Machine performance
Conclusively evaluate the operation of the
motor, identifying stressful operation and
its source with this domain. It looks at
Effective Service Factor, Load, Operation
Condition, Efficiency, and calculates
Payback Period. Commonly found
problems include: thermal overloading of
the motor, machine deterioration
recognition among other items that are
directly related to the motors health and
the energy wasted with ineff iciencies.
Current
Currrent level and current unbalance are
utilized to determine overall electrical
machine health. These parameters are
used to determine the following issues
overloading, connection issues, miss
connections, iron saturation and
improperly wound motors.
Power quality
This domain identifies non-optimal power
quality problems, which cause additional
motor stress. Flag frequent problems with
voltage level, voltage unbalance, harmonic
distor tion, total distortion, power and
Spectrum
This domain has the rotor bar test along
with V/I spectrum, Demodulated
Spectrum, and Harmonics. It shows
current and voltage relationships with
regards to frequency. Electrically it will
find saturation problems, broken rotor
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