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Types of Maintenance for electric devices
Breakdown
Preventive
Routine
All of above
All of above
Maintenance for electrical devices is categorized into different strategies to ensure reliability, safety, and longevity. Breakdown, Preventive, and Routine maintenance are all essential components of an effective maintenance program in power systems.
Maintenance for electrical devices is categorized into different strategies to ensure reliability, safety, and longevity. Breakdown, Preventive, and Routine maintenance are all essential components of an effective maintenance program in power systems.
MTBF=╬╗1тАЛ тАФ Mean Time Between Failures, where ╬╗ is the failure rate
Availability=MTBF+MTTRMTBFтАЛ тАФ Ratio of uptime to total time, crucial for maintenance planning
Maintenance strategies operate on different time scales and triggers: Breakdown maintenance occurs after a failure, Preventive maintenance is scheduled based on time or usage to reduce failure risk, and Routine maintenance involves periodic minor inspections or adjustments (like cleaning or lubrication) to maintain equipment health.
Breakdown maintenance (Run-to-failure) is often cost-effective for non-critical, inexpensive components.
Preventive maintenance aims to extend equipment life by performing tasks at fixed intervals.
Predictive maintenance, a subtype of preventive, uses condition monitoring (e.g., thermal imaging, vibration analysis).
Routine maintenance focuses on standard procedures like tightening terminals and cleaning dust.
Improved safety and operational reliability
Increased equipment service life
Reduction in unplanned downtime costs
High initial investment for advanced diagnostic tools
Risk of over-maintenance in strict schedule-based models
Industrial motor and transformer maintenance
Residential electrical distribution wiring
Power transmission and substation equipment
Breakdown maintenance is also called Corrective Maintenance.
Preventive maintenance is often mandated by IS standards for high-voltage installations.
D is correct тАФ All listed strategies are standard methodologies used to maintain the functional integrity of electrical devices in a power system.
In competitive exams, always check if a 'none of the above' or 'all of the above' is present when multiple options appear equally relevant to a broad category like 'Maintenance'.