Introduction to Electrical Health Index
Asset health index is an index that is an aggregate score related to the health of an asset calculated from historical asset performance data and physical condition data from measurements. The higher the health index, the less likely the equipment is to experience failure or damage. – Omazaki Consultant is a consultant who provide health assessments for electrical distribution equipment by calculating or estimation the health index of equipment such as transformers, circuit breakers, cables, and so on as part of a comprehensive electrical system assessment services. Contact us by sending an email to cs@omazaki.co.id or by filling in the form in contact.
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Health Index Calculation
The calculation of the electrical asset health index aims to provide an indication of the overall condition of the asset. The calculation will use a quantitative method by giving a value (score) to key factors and their sub-factors based on certain criteria that have been previously determined.
The condition of an asset is measured by its HI. This HI is determined by evaluating several factors that are critical to the operational health of the asset. Each critical factor is weighted during the HI calculation so that the relative value of each factor can be adjusted.
In general, the principle of calculating the health index (HI) of electrical equipment that will be carried out is as follows:
- The health index is determined by evaluating several important factors for operational health
- Each critical factor and sub-factor is weighted based on certain criteria
- The results of the HI calculation will be greatly determined by the available data, both from measurement and testing results, calculations, and so on.
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Health Index’s Key Factors and Sub-Factors
For Circuit Breaker
Several key factors and sub-factors in determining the health index of a circuit breaker can be seen in the following diagram:
For Transformer
Several key factors and sub-factors in determining the health index of a power transformer can be seen in the following diagram:
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Electrical Health Index Calculation Formula
Formula to calculate the health index of electrical assets is:
where:
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References
- Asset Health & Probability of Failure – Calculations for Transformers and Breakers by Western Power Administration
- IEEE C57.106-2006 IEEE Guide for Acceptance and Maintenance of Insulating Oil in Equipment
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Contact Omazaki Consultant if you are looking for consultants who provide electrical asset health index calculation and assessment of equipment such as generator, transformer, circuit breaker and cable for your existing power or electricity system in Indonesia.
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