Partial Discharge Monitoring For Quick Diagnosis, Rapid Maintenance; For A Bette
Posted by AllmaJess on April 14th, 2014
Electric equipment needs to work at optimum performances at all times or even the smallest of the problems can elevate to a level that can cause actual damage. The ultimate loss can be the economic losses that can be faced if machinery has to be shut down because of Partial Discharge Motors; but fortunately these losses can be easily prevented by doing some easy prophylactic measures and quick diagnosis and repair and Partial Discharge Monitoring; alleviating the conditions before they elevate to a damaging extent. The entropic states of machinery is bad for business and optimal performance but no matter how bad might it be; the machines will eventually achieve their entropic state.
The motors and transformers work on different principles but have similar inside parts; both have coils of tightly wound insulated wires in them and the problem with insulation is that it never remains intact forever. Small; even microscopic crevices, cracks and inclusions in the insulating layers will cause the current to flow through unwanted paths; the current may leak to other parts of the same wire, unless the Partial Discharge Monitoring is done properly, leaking currents will increase the resistance of the motor or the transformer.
The increased resistance of the circuitry and coiling will directly increase the temperature of the coil which further increases the resistance creating an entropic vicious cycle. Partial discharges account for about one tenth of the total losses in a motor. Temperature sensors like magnetic mounts that provide accurate temperature change by screening outside temperature changes and maintaining a contact with the container walls, thermal well probes that maintain a contact with thermal walls and can thus diagnose Partial Discharge Motors. Partial discharges have a characteristic radio frequency emission and signature magnetic field which can be sensed by specific sensors and thus coil sensors, ground path current sensors, radio frequency sensors and coupling capacitors can be employed to diagnose the problems.
The machines today are advanced and state of the art; the industrial age requires optimal production and functioning at all times and even small problems like partial discharge will have an impact on the big picture. Advanced diagnostic and engineering solutions companies like dynamic ratings employ state of the art diagnostic tools to accurately observe the changes occurring in the circuits, equipment, motors and transformers. They also employ advanced techniques and timely efforts for Partial Discharge Monitoring and entropy prevention; making their service, a must have for all firms.
When a coil has partial discharges; the leaking current causes the output to decrease because the effective coiling wounding is decreased and thus the power wastage and production decrement occurs directly. Rotating machines; motors and generators are primarily important, while the transformers are also fairly important; all of which have coiling in them and thus, all are in need for Partial Discharge Monitoring. Other aspects of a rotating machine to be monitored are the bearings, sound and vibration which also directly add to wastage and lowered production. It is well said that a stitch in time saves nine.
Quick detection, diagnosis and solution of problems in Partial Discharge Motors and transformers can prevent potential threats that may cause long time shutdowns and economic losses. Hence Partial Discharge Monitoring is one such problem that requires quick solution.
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About the AuthorAllmaJess
Joined: March 15th, 2013
Articles Posted: 732
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