On the last twenty years, maintenance analysis and execution has changed,
perhaps more than any other discipline in engineering. These changes are
mainly based on the increase and variety of physical assets (industrial plants,
equipment, buildings, among others). The designs are more complex, new
methods of maintenance are applied and the optics in the organization has
changed with respect to the maintenance and its responsibilities to assure the
reliability of the system. Several developments have been presented to
establish a model of greater coverage that allows the evaluation of the
equipment. All the companies and goverments need a better reliability in their
grid, and an asset management strategy for the remaining life management.
However, the calculation of the probability of failure of an equipment is
developed in this thesis, for power lines, transformers and circuit breakers. It
can be determined by its state which is derived from the estimation of the
remaining life.
The remaining life recommended by international standards, does not consider
the variety of conditions that present the national territory by geography,
climate, among others. All equipment does not age at the same speed and is
not subject to the same operating or environmental conditions. The knowledge contribution is an assessment model, for a better estimate of the reliability of
the power system, with focus in remaining life for the asset and system, the
case study has been done successfully, with power transformers, circuit
breakers and cables of power lines with high accuracy and effectiveness.
The research focused on the main elements of the power transmission system:
Power transformer, switch and power lines, it‘s upper than 138 kV (High and
very high voltage transmission system), for the physical assets associated to
transmission system.
In this thesis, the technical assessment for the reliability and remaining life
analysis of the electric power system has been achieved, the results are the
following: 8 objectives with 24 indicators for the 3 most important equipment of
the power system: Inductive equipment, switchgear, cable and conductors of
overhead lines. The model CESM developed, it includes the assessment of
effectiveness of 98.13% in operating condition for power transformers, 99.36%
for switches and 98.43% for overhead lines conductors. The benefits value with
a costs analysis has identified savings of USD 22,606,831.60, it was obtained
by applying the model. The results of improvement of costs and service level
in the implementation of the model in Peru are presented, improving the
indicators in switchgears, transformers and conductors of electric power
transmission lines.
| Identifer | oai:union.ndltd.org:PUCP/oai:tesis.pucp.edu.pe:20.500.12404/17930 |
| Date | 25 January 2021 |
| Creators | Arias Velásquez, Ricardo Manuel |
| Contributors | Melgar Sasieta, Héctor Andrés |
| Publisher | Pontificia Universidad Católica del Perú, PE |
| Source Sets | Pontificia Universidad Católica del Perú |
| Language | Spanish |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/closedAccess |
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