Launch of Online Monitoring of Partial Discharge in Voltage Source Variable Speed Drives
...within the drive. The reasons for an increase in the risk of rapid insulation deterioration due to these impulses include: More and bigger PD within ...
...within the drive. The reasons for an increase in the risk of rapid insulation deterioration due to these impulses include: More and bigger PD within ...
Abstract – Partial discharge (PD) detection in stator windings is widely used to assess the condition of the electrical insulation. When the winding is excited ...
ABSTRACT In this paper two real-life cases of generator stator winding bar vibration problem and their consequent failures are discussed. The emphasis is on the ...
ABSTRACT In this paper a real-life case of repair of minor generator stator core surface damage by electro-etching method is presented. INTRODUCTION Generator The generator ...
...on the technology and resource availability. Ideally, multiple technologies are incorporated into a common software platform for easier analysis and data correlation. For ...
...effective in detecting shorted turns in the standstill condition. For moderate and large size hydro-generators and pump-storage generators, the most common type of salient pole ...
...tests are good at identifying contaminated windings; however, such issues as thermal deterioration or abrasion of the insulation due to coil vibration, are ...
...causes and instrumentation used. There is no standardized approach in the selection of sensors, their location or methods used for data collection. The ...
...winding. This information is critical in planning maintenance outages and in augmenting on-line vibration analysis. Traditionally, flux measurements have been done using flux probes installed ...