ABB | SACE Emax 2
LEAP analysis program | 1 - Presentation299 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
LEAP analysis program
1 - Presentation
LEAP objectives
LEAP - Life Expectancy Analysis Program - is an analysis program carried out directly by the customer or by
ABB technicians that is able to assess the state of health of the circuit-breaker, with the aim of:
• extending the life of the circuit-breaker
• preventing premature faults
Characteristics of the analysis
Different types of analysis are available depending on the requirements of the customer.
The basic analysis always considers the following parameters:
• environmental conditions in which the circuit-breaker is installed (e.g. application, temperature, dust,
humidity, salinity)
• usage conditions of the circuit-breaker (e.g. number of operations per year, average current capacity -
percentage of real current compared to the rated current -, position in relation to the load)
The most complete analysis also considers many other parameters, including:
• level of wear found during maintenance
• the Trip History related to overloads or short circuits
• the maintenance actions carried out by the ABB technician
Content of the LEAP report
The result of a LEAP analysis is always a report that contains:
• details on the installation in which the circuit-breaker is inserted
• suggested frequency of maintenance based on the data encountered
• graphical representation of the state of health of the circuit-breaker
The graphical representation consists of the following:
• Four coloured areas (green, yellow, orange and red) distributed over the entire diagram. Like a traffic light,
the various colours represent the risk of a circuit-breaker fault (green area = contained fault risk, red area
= high fault risk).
• A curve that represents the state of the circuit-breaker over the years. The green part of the curve represents
the life of the circuit-breaker from the moment when it was produced to the moment when it was installed.
It is important to note that even when a circuit-breaker is not in use also gets worn in any case.The blue
part of the curve, a continuation of the green curve, represents the life of the circuit-breaker in activity.
Here is an example:
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