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ElectricalPower System
PrevNext

The process of finding and fixing a defect in instruments is called?

A

Troubleshooting

B

Maintenance

C

Both

D

Only A

Correct Answer

тЪЩя╕П TE тАв Technical Concept & PrincipleElectricalPower System
Option D

Only A

Quick Summary:

Troubleshooting is the systematic process of identifying, diagnosing, and rectifying a fault or defect in an instrument or system. Unlike maintenance, which is a proactive or periodic routine, troubleshooting is a reactive process triggered by a specific malfunction or performance deviation.

тЪЩя╕ПTETechnical SolutionConcept & Principle
ЁЯТб Explanation

Troubleshooting is the systematic process of identifying, diagnosing, and rectifying a fault or defect in an instrument or system. Unlike maintenance, which is a proactive or periodic routine, troubleshooting is a reactive process triggered by a specific malfunction or performance deviation.

ЁЯФв Key Formulas

MTTR=тИСRepair┬аTimesNumber┬аof┬аRepairsMTTR = \frac{\sum \text{Repair Times}}{\text{Number of Repairs}}MTTR=Number┬аof┬аRepairsтИСRepair┬аTimesтАЛ тАФ Mean Time To Repair, a metric used to evaluate troubleshooting efficiency

тЪЩя╕П Working Principle

The troubleshooting mechanism typically follows a logical sequence: (1) Observation of symptoms, (2) Isolation of the faulty section, (3) Diagnosis of the root cause, (4) Repair or replacement of the failed component, and (5) Verification of restored functionality. It utilizes test equipment such as multimeters, oscilloscopes, or diagnostic software to trace signal paths or electrical continuity to pinpoint the exact failure point.

ЁЯУМ Key Points
  • тЦ╕

    Troubleshooting is a reactive activity triggered by failure.

  • тЦ╕

    Maintenance is categorized as preventive (periodic) or predictive (condition-based).

  • тЦ╕

    Effective troubleshooting minimizes downtime in power systems.

  • тЦ╕

    Documentation such as logbooks and schematics are essential for troubleshooting.

тЬЕ Advantages
  • тЦ╕

    Reduces system downtime.

  • тЦ╕

    Prevents catastrophic failures by early identification of defects.

  • тЦ╕

    Increases the operational lifespan of electrical instruments.

тЭМ Disadvantages / Limitations
  • тЦ╕

    Can be time-consuming if documentation is missing.

  • тЦ╕

    Requires high technical expertise for complex electronic circuits.

ЁЯЫая╕П Applications / Uses
  • тЦ╕

    Power system relay calibration.

  • тЦ╕

    Control panel instrumentation repair.

  • тЦ╕

    Industrial automation and sensor maintenance.

ЁЯФД Comparison Table
FeatureTroubleshootingMaintenance

Nature of Activity

Reactive (Fault-driven)

Proactive (Time-driven)

ЁЯУД Additional Information
  • тЦ╕

    Option B (Maintenance) refers to activities performed to retain or restore an item to a functional state, including preventive tasks, which distinguishes it from the fault-specific nature of troubleshooting.

  • тЦ╕

    The IEEE standard for reliability and maintainability terminology defines these processes clearly to ensure standardized power system operations.

ЁЯУК Diagram / Illustration
Troubleshooting Process FlowFault DetectionDiagnosisCorrective ActionVerification (System OK)
тЬЕ

D is correct тАФ Troubleshooting specifically refers to the identification and remediation of a defect, whereas maintenance encompasses broader activities aimed at preserving equipment health.

Core Concepts Used
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Fault Diagnosis System Downtime Instrumentation Maintenance
ЁЯТб EXAM TIP

In competitive exams, always distinguish between 'preventive' actions (Maintenance) and 'corrective' actions (Troubleshooting) to identify the correct technical terminology.

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