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As it is
well known downtime of a major unit can cost hundreds of thousands of
dollars a day. In order to make it imperative for utilities to
improve reliability and reduce downtime, Artesis PCM offers a unique solution that safeguards Turbine generators from common faults, both electrical and
mechanical, such as:
•
Misalignment,
•
Unbalance,
•
Bearing Faults,
•
Short-Circuits
•
Partial Discharge
Artesis
PCM is a manufactured as a small, box-shaped device that is
suitable for installation on control panels. After the device completes a
learning period, it starts to monitor the system by acquiring real-time
data from generators and processing that data to compare the actual
condition with the one obtained during the learning mode. If the
difference exceeds a set of thresholds, the user is warned by means of a
liquid crystal display and a number of light emitting diodes on the front
panel of the device. Different light emitting diodes are lighted up
depending upon the severity of the impending fault. Lighting up other
light emitting diodes also indicates fluctuations in line and load
conditions.
The
device measures only three phase voltage and current signals of a system.
Using the measured three phase voltage and current signals, in addition
to the nonphysical model parameters, it calculates a set of physical
parameters such as rms-values of three phase voltage and current, power
factor, etc.., therefore monitors the system continuously. This set also
includes parameters such as total harmonic distortion, harmonic content
of the incoming signal and voltage imbalance, which give an idea about
the quality of incoming power. Active and reactive power parameters in
this set might be used for energy consumption estimations. Therefore, it
combines many physical quantities that are of the interest to both
production and maintenance operators just in one device. A selected
physical quantity can be displayed on the liquid crystal display.
Artesis
PCM can be integrated to SCADA system using the Modbus
communication protocol and to other maintenance management systems;
however it is also possible to use it with its own desktop application, MCMSCADA+Diagnostics. Using this desktop application, the
status, physical and nonphysical parameters of several electric
motor-based machinery, equipment and processes in a plant can be
monitored from several different computers at remote locations. Trend
analysis might be performed on the past values stored in a database.
ARTESIS PCM: KEY
BENEFITS:
·
Allows
you to:
Improve
control over equipment performance
Improve plant performance
Improve control over maintenance work
Provide better visibility of equipment performance and condition
Reduce breakdowns
Respond more rapidly to plant breakdowns
Identify breakdowns more rapidly
Identify breakdowns before they occur
Fix faults more rapidly
Identify faults more rapidly
·
Easy
to use
Easy to interpret results
No need to interpret ‘wiggly lines’
Clear guidance on action required
·
Automatically
learns, and then monitors relationship between voltage and current in the
generator
·
Allows
monitoring wherever you are-in the office, at another site, from home...
·
Provides
alerts to your staff to take action
By warning on screen
By sending e-mail
By sending text message
·
Automatically
does all the analysis to provide simple clear answers
·
Robust
Nothing out on the plant so not prone to
damages from corrosion, mechanical damage, heat, vibration, radiation
etc.
·
Easy
to integrate with other systems, e.g. CMMS, to raise work orders
·
Can
support power users if you want
Historical
graphs, trends, etc available for easy analysis if required
·
Can
be provided as an external service- to monitor and advice as required.
·
In
addition to monitoring condition of equipment, Artesis provides
information on plant operating conditions too (information on power
consumption, phase angle and total harmonic distortion can allow plant
efficiency to be optimized)
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