Interested to Buy Any Domain ? << Click Here >> for more details...
Can any body tell me about partial discharge test, and why
it is necessary and its procedure
- 1 Answers
- 4386 Views
- I also Faced
- E-Mail Answers
Answer Posted / sanset
Partial discharge (Pd) fault detection is a well proven
test method that relies on the detection of small electrical
discharges generated in faulty areas of electrical
insulation. It is also a method under consideration for
future on-line monitoring systems particularly in the area
of asset management of transformers. Much of the fundamental
principles of capturing Pd pulses were developed in academic
environments. However the limitations of Pd fault detection
is that it requires considerable operator skill in detecting
Pd pulses and interpreting results. It has been estimated
there are less than 200 operators in the world, capable of
correctly conducting and interpreting Pd testing.
Consequently, to-date Pd test has largely been limited to
the laboratory and low electrical noise environments.
The theme of more contemporary work has been the
identification of Pd pulses in extremely electrically noisy
environments requiring a rare combination of expertise, HV
technology and intelligent systems. Several concepts through
industrial collaboration have been identified that have lead
to the development of algorithms permitting recognition of
Pd pulses barely discernible with traditionally applied
visual analysis. Finding that the successful recognition of
Pd and the ability to accurately predict Pd pulse shapes
under fault conditions; requires substantial historical
behaviour details, based on a knowledge of localised
background noise indigenous to the subject equipment.
Currently work is being undertaken, researching techniques
to predict the unique nature of Pd pulses generated within
particular electrical environments, by sophisticated
analysis (feature specific) of local conditions.
| Is This Answer Correct ? | 2 Yes | 2 No |
Post New Answer View All Answers
I have motor of 3 H.P. How i found the rating of capacitor use in it in single phase motor..???
Currently what is the highest capacity (MVA) of SPPg generator available in the market?
Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)
Why power genaration in India is at 50HZ while America its 60HZ
what is the acceptable value of TAN DELTA and dissipation factor for 11kV, 1.75HP Motor?.
what is the ckt diagram of a tubelight and is it the simplest ckt of electrical engineering and also the component?
why did youi choose this career?
In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?
i want to put single phase load on scott connected transformer,eventhough how to balance the transformer.
What are the types of class b amplifier?
Why do we use copper cable for HT Supply and why not Aluminium?
CT Ratio of a energy meter connection is Red Phase : 100/5A, yello Phase : 50/5A & Blue phase : 100/5 A what is the overall Multiplication factor
The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?
How many points does a Circuit can have?
Circuit diagram of tube light without starter using electrical choke
