Circuit breaker Maintenance By Mobile Agent Software Technology

Gandhi Institute For Technology

Seminar Report On Circuit Breaker Maintenance By Mobile Agent Software Technology Under Guidance Of Prof . Abinash Mohapatra

Presented By: Siddhartha Kumar Muduli

Regd No:1101298133EEE-II,7th Sem

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OUTLINE INTRODCTION WHAT IS CIRCIUT BREAKER TYPES WHAT TO MAINTAIN MAINTENANCE STRATEGY MOBILE AGENT APPLICATION SCENARIO ADVANTAGES CONCLUSION REFERENCE

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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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TYPES OF CIRCUIT

BREAKER

VACCUMCIRCUIT BREAKER

AIR CIRCUIT

BREAKER

OIL CIRCUIT BREAKER

SF6 CIRCUIT BREAKER

Why and What has to be Maintained on breakers ?

Case Mechanism Arc chute Main contacts Control unit Connection systems Auxiliary Devices Communication system

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MaintenancePeriodic InspectionTesting of BreakerReplacement of worn or defective

components and lubrication.

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Maintenance TypesCorrective maintenancePreventive maintenancePredictive maintenanceSystematic solution is to utilize the

Reliability Centered Maintenance (RCM) methodology.

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MAINTENANCE STRATEGIES

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Parts of Maintenance System

Substation ConcentratorMaintenance CrewEnterprise Maintenance SystemSoftware 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 .

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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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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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Software Agent Works On Java Environment Network Node Helps TO Link with Other

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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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Advantages Of Using Mobile AgentInformation Storage and RetrievalCreating Circuit Breaker Failure Reports Circuit breaker monitoring Security Consideration Logging and Experience SharingCost-benefit analysis

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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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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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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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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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Security Issue Report

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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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Cost-Benefit AnalysisA 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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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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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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Thank You….