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The Improvement in Human Reliability in Power Grids by Identifying and Assessing the Risk of Failures Caused by Maintenance Operations

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Iranian Journal of Science and Technology, Transactions of Electrical Engineering Aims and scope Submit manuscript

Abstract

Human errors in the maintenance operations of power transmission grids can be a critical factor in the failure of equipment. Equipment failures result in the reduction in reliability, customer satisfaction, and loss of power companies revenue. In order to prevent the failure of equipment due to human errors, the supervisors or head of the operating groups needs to monitor the actions continuously during and after the maintenance. The proposed approach in this paper is to estimate the probability of the human errors’ effect in any failure with its technical and economic consequences for power companies. Then, the equipment failures have been categorized based on the risk assessment of the human error and consequences in order to identify high-priority tests or inspections for accuracy for monitoring and controlling.

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Abbreviations

FREC:

Fars Regional Electrical Company

PETL:

Penalties for energy transit loss

ETBR:

Energy transit benefit reduction

SERC:

Sub-equipment replacement cost

MGC:

Maintenance groups cost

EOTR:

Equipment outage time for repair

FRHE:

Failure rate due to human error

ETA:

Energy transit amount

PA:

Penalty amount

TLC:

Transformer or line capacity

PT:

Power transformer

CT:

Current transformer

VT:

Voltage transformer

CB:

Circuit breaker

P :

Performance

\( P_{\text{HE}} \) :

Probability of the human error

C :

Consequences of the failure

\( R_{\text{P}} \) :

Primary risk level

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Authors and Affiliations

  1. Islamic Azad University, Marvdasht Branch, Marvdasht, Iran

    Mehdi Tavakoli & Mehdi Nafar

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  1. Mehdi Tavakoli
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  2. Mehdi Nafar
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Correspondence to Mehdi Tavakoli.

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Tavakoli, M., Nafar, M. The Improvement in Human Reliability in Power Grids by Identifying and Assessing the Risk of Failures Caused by Maintenance Operations. Iran J Sci Technol Trans Electr Eng 44, 1123–1131 (2020). https://doi.org/10.1007/s40998-019-00285-5

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  • DOI: https://doi.org/10.1007/s40998-019-00285-5

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