1. Seminar Report
On
Circuit Breaker Maintenance By Mobile Agent Software Technology
Under Guidance Of Prof . Abinash Mohapatra
Presented By:
Siddhartha Kumar Muduli
Regd No:1101298133
EEE-II,7th Sem

2. OUTLINE
 INTRODCTION
 WHAT IS CIRCIUT BREAKER
 TYPES
 WHAT TO MAINTAIN
 MAINTENANCE STRATEGY
 MOBILE AGENT
 APPLICATION SCENARIO
 ADVANTAGES
 CONCLUSION
 REFERENCE
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3. INTRODUCTION
What is a circuit breaker?
A circuit breaker is an automatically-
operated electrical switch designed to protect
an electrical circuit from damage caused by
overload or short circuit.
Fuse, which operates once and then has to be
replaced, a circuit breaker can be reset (either
manually or automatically) to resume normal
operation.
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4. 4
TYPES OF
CIRCUIT
BREAKER
VACCUM
CIRCUIT
BREAKER
AIR
CIRCUIT
BREAKER
OIL
CIRCUIT
BREAKER
SF6
CIRCUIT
BREAKER

5. Why and What has to be Maintained
on breakers ?
 Case
 Mechanism
 Arc chute
 Main contacts
 Control unit
 Connection systems
 Auxiliary Devices
 Communication system

6. Maintenance
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Periodic Inspection
Testing of Breaker
Replacement of worn or defective
components and lubrication.

7. Maintenance Types
Corrective maintenance
Preventive maintenance
Predictive maintenance
Systematic solution is to utilize the
Reliability Centered Maintenance (RCM)
methodology.
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8. MAINTENANCE STRATEGIES
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9. Parts of Maintenance
System
Substation Concentrator
Maintenance Crew
Enterprise Maintenance System
Software Agent
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 Enterprise maintenance
System: Information about
spare parts, test, maintenance
records etc.
 Substitution Concentrator:
Information about the
substations equipment .
 Maintenance crew :Work
inspection or test report
stored on a mobile computer .

11. Characteristics Of Software Platform
 Security support (encrypted data transmission, user
authentication and authorization).
 Efficient network bandwidth usage.
 Robust and fault-tolerant communication over unreliable
 environment and portable personal communication
devices.
 Ability to integrate with heterogeneous systems.
 Automatic software update to ease the user burden.
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12. What Is Mobile Agent
Software ….?
Small software component that can
perform functions on behalf of users.
Good software agent must able to adapt
change in environment.
Share knowledge with other agent.
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13. Software Agent Works On Java Environment
Network Node Helps TO Link with Other
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14. APPLICATION SCENARIOS
Three Computers study Characteristics Of Data.
The enterprise maintenance system may contain
the maintenance history database.
Substation concentrator is in charge of collecting
data from the sensors installed on the circuit
breakers.
Maintenance crew uses a mobile computer to
access the information and prepares report
utilizing software mobile agents.
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15. Advantages Of Using Mobile Agent
Information Storage and Retrieval
Creating Circuit Breaker Failure Reports
 Circuit breaker monitoring
 Security Consideration
 Logging and Experience Sharing
Cost-benefit analysis
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16. Information Storage and
Retrieval
 Storing and retrieving all the information needed to
perform maintenance or repair work.
 Accessing the data saved into heterogeneous systems.
 Utilize some heuristic knowledge to do more complicated
search.
 Agent could use its own knowledge base to retrieve the
information.
 When the location or format of an information source is
changed, the central database will be updated or consult
central agency.
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17. Creating Circuit Breaker
Failure Reports
 Gather all the information and compile a report may be
time consuming .
 Failure report, the user needs to collect the circuit breaker
information (manufacturer, type, voltage, etc) and
operating environment data.
 Software agent will create the report and send out
additional mobile agents to the distributed information
sources for collecting the data.
 Generated report is in Extensible Markup Language
(XML) format and contains only the necessary information
about the failure report (e.g. HTML or PDF).
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19. Circuit Breaker Monitoring
 Helpful in monitoring the status and events of circuit breakers.
 After monitoring starts, the selected events will be registered with the
mobile agent server running on the corresponding substation
concentrator.
 The concentrator can get the real-time information about breakers by
communicating with sensors.
 It can notify the user when the selected type of event happens.
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20. Security Consideration
 The mobile agents need to be authenticated and authorized
at the servers.
 Data Integrity is highly essential.
 The mobile agent server can control agent's access to
resources depending on both the user identification and
server permits.
 Software provides options to encrypt the data when it is in
transit and thus prevents others tampering with the data.
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21. Security Issue Report
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22. Logging and Experience
Sharing
Software agents may help in logging and
sharing maintenance experience.
The recorded experience can be saved in a
case-based reasoning system for future
retrieving.
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23. Cost-Benefit Analysis
A cost-benefit analysis based on the risks
and investment return may be processed
automatically.
A decision making sequence has been
recommended, which consists of three
stages. Some historical data will help the
user to give a more appropriate score for
assessing each failure mode.
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24. Conclusions
 Suitable for application of maintenance practice
due to its support for heterogeneous systems,
security, distributed events, low-bandwidth usage
etc.
 Using the mobile agent software, the development
work can be greatly simplified.
 Also, agent-based software architecture makes the
application more flexible and upgradable.
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25. Reference
 IEEE Paper Of Mladen Kezunovic,Xiangjun Xu,David
Wong
 Materials Of Orissa power transmission Limited (OPTCL)
 Power System Analysis By Hadi Sadat
 http://www.techsling.com/2012/11/a-quick-look-at-circuit-
breaker-maintenance-by-mobile-agent-software-
technology/#ixzz361RiyiFB
 http://www.ehow.com/about_6529651_invented-circuit-
breaker_.html
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