Abstract – The stator winding insulation in petrochemical plant motors and generators have been assessed using routine on-line partial discharge (PD) testing for at ...
...in the endwinding. Over the past few years experience has been gained on the collection, display and interpretation of stator winding on-line endwinding vibrati
...erode the groundwall insulation much more quickly than slot discharges. Unlike the normal loose coil/slot discharge failure process, spark erosion can happen anywhere in the winding, ...
...with two, temporary mounted, air-gap sensors. One sensor was mounted on the stator core and the other on the rotor pole. Machine was rotated manually ...
...noise pulses when using capacitive couplers mounted on each of the phase leads and an RF current transformer mounted on the neutral lead for signal ...
...versions are using cellular connections to push PDTracII data to a SQL database in the Cloud. A Web based application suitable for computer or mobile phone ...
ANSI C50.13 paragraph 4.2.4.1 • Suffer minimal damage after experiencing short circuit forces. – Suitable for service with minor repairs. • No bar / coil replacement...
...one of them in particular. For end-users, the proposed monitoring system acts like a black box with an alert that comes on when the ...
...RLZ operation to compare the vibrational behavior. The main focus was on the analysis of dynamic instabilities and potentially dangerous consequences of RLZ operation. ...
Company: An US oil refinery Machine Description: 20.5 MW, 13.8 kV Motor CASE STUDY: High Resistance Connections Detected by On-Line PD In Motor On-line ...