Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: PTILE: A framework for the Evaluation of Power Transformer Insulation
  Life in Electric Power System   In this paper, a framework is developed for power transformer (Generator Step
up Unit) insulation life evaluation (PTILE) study on power system Network.
Parameters used for studies include real time sample data obtained from power
transformer field studies in the South-South Niger Delta region of Nigeria. It
is used for performing simulations over varying number of years. Simulation
reports shows a polynomial running time complexity and validates the stochastic
Hot Spot theory indicating that the transformers in such region should be
replaced sooner due to higher hot spots and transformer loading in such regions

36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
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The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess