This article focuses on condenser bushings monitoring, of both oil-impregnated and resin-impregnated paper bushings, for extra high-voltage class transformers in order to avoid a catastrophic transformer failure that might result from a failed bushing. A brief description of the online monitoring system is presented, highlighting its superiority over conventional offline monitoring practices. This is followed by a true case study and a specimen cost-benefit analysis related to a failure of a 160 MVA, 220/132/33 kV transformer and its assumed down time of 72 hours at a substation in India, caused by a failure of a 245 kV oil-impregnated paper bushing
On observation of deterioration of tan-δ value to 1.02 %, i.e., surpassing the limiting value of 0.7...
On observation of deterioration of tan-δ value to 1.02 %, i.e., surpassing the limiting value of 0.7...
As reported in CIGRE TB 642, windings, tap changers and bushing related failures are the major contr...
This article focuses on condenser bushings monitoring, of both oil-impregnated and resin-impregnated...
This article focuses on the concept of capacitance-graded, i.e. condenser bushings – both oil-impreg...
On observation of deterioration of tan-δ value to 1.08 %, i.e., surpassing the limiting value of 0.7...
On-line monitoring has proven to be an effective technology to detect deteriorating high voltage bus...
On observation of deterioration of tan-δ value to 1.08 %, i.e., surpassing the limiting value of 0.7...
Relationship between bushing failure and transformer failure is discussed and, in regard of that, tw...
Relationship between bushing failure and transformer failure is discussed and, in regard of that, tw...
Bushings are highly stressed parts of power transformers and their failures can lead to a transforme...
Bushings are highly stressed parts of power transformers and their failures can lead to a transforme...
Power transformer is one of the most important and most expensive components in the electric power s...
In the paper there are presented typicaloperating damages of bushings in transformers installed inth...
Paper-insulated bushings (OIP and RIP) have been the dominant bushing type for the power transformer...
On observation of deterioration of tan-δ value to 1.02 %, i.e., surpassing the limiting value of 0.7...
On observation of deterioration of tan-δ value to 1.02 %, i.e., surpassing the limiting value of 0.7...
As reported in CIGRE TB 642, windings, tap changers and bushing related failures are the major contr...
This article focuses on condenser bushings monitoring, of both oil-impregnated and resin-impregnated...
This article focuses on the concept of capacitance-graded, i.e. condenser bushings – both oil-impreg...
On observation of deterioration of tan-δ value to 1.08 %, i.e., surpassing the limiting value of 0.7...
On-line monitoring has proven to be an effective technology to detect deteriorating high voltage bus...
On observation of deterioration of tan-δ value to 1.08 %, i.e., surpassing the limiting value of 0.7...
Relationship between bushing failure and transformer failure is discussed and, in regard of that, tw...
Relationship between bushing failure and transformer failure is discussed and, in regard of that, tw...
Bushings are highly stressed parts of power transformers and their failures can lead to a transforme...
Bushings are highly stressed parts of power transformers and their failures can lead to a transforme...
Power transformer is one of the most important and most expensive components in the electric power s...
In the paper there are presented typicaloperating damages of bushings in transformers installed inth...
Paper-insulated bushings (OIP and RIP) have been the dominant bushing type for the power transformer...
On observation of deterioration of tan-δ value to 1.02 %, i.e., surpassing the limiting value of 0.7...
On observation of deterioration of tan-δ value to 1.02 %, i.e., surpassing the limiting value of 0.7...
As reported in CIGRE TB 642, windings, tap changers and bushing related failures are the major contr...