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OPERATION & MAINTENANCE

SPK Group > OPERATION & MAINTENANCE

Reliable execution, precision, long-term value

What included at this service?

  • SYSTEM & SCHEME VERIFICATION
  • INTERLOCK & CONTROL SYSTEM VERIFICATION
  • ELECTRICAL PANEL & AUXILIARY SYSTEM MAINTENANCE
  • RELAY & BREAKER RETROFITTING
  • TRANSFORMER & SWITCHGEAR SERVICING
  • ELECTRICAL LOAD & POWER ANALYSIS
  • EQUIPMENT TESTING & CONDITION MONITORING
  • SWITCHYARD & SWITCHGEAR MAINTENANCE
  • PREVENTIVE & CORRECTIVE MAINTENANCE

RELIABLE OPERATION & MAINTENANCE FOR LONG-TERM POWER SYSTEM PERFORMANCE

SPK Power Infra provides operation and maintenance services for substations, electrical equipment and power infrastructure, helping clients maintain safe, reliable and efficient system performance throughout the operational lifecycle.

 

Our experienced engineering teams carry out systematic inspections, functional checks, equipment maintenance, fault identification, retrofit activities and performance monitoring. By combining preventive maintenance with technical analysis and corrective interventions, we help reduce operational risks, improve equipment reliability and support uninterrupted power-system performance.

Working Process

Our structured maintenance approach focuses on identifying potential issues early, maintaining equipment in reliable operating condition and addressing faults before they develop into major failures. Each activity is planned and executed according to equipment requirements, operating conditions, safety procedures and applicable standards.

01_SYSTEM & SCHEME VERIFICATION

We begin by verifying protection schemes, control logic and system functionality to ensure that electrical systems operate according to their intended design.

Activities

  1. Scheme checking
  2. Protection logic verification
  3. Control logic verification
  4. Trip-circuit verification
  5. Alarm and indication checks
  6. Functional sequence verification
  7. System logic assessment

02_INTERLOCK & CONTROL SYSTEM VERIFICATION

SPK verifies electrical and mechanical interlocks to ensure safe equipment operation and prevent incorrect switching sequences.

Activities

  1. Electrical interlock verification
  2. Mechanical interlock verification
  3. Circuit-breaker interlock checks
  4. Disconnector interlock checks
  5. Earth-switch interlock checks
  6. Control-system functional checks
  7. Switching-sequence verification

03_ELECTRICAL PANEL & AUXILIARY SYSTEM MAINTENANCE

Our teams inspect and maintain control panels and auxiliary electrical systems that support reliable substation operation.

Activities

  1. Electrical panel inspection
  2. Auto-changeover operation checks
  3. Control-panel maintenance
  4. Auxiliary supply checks
  5. Battery and charger inspection
  6. DC system checks
  7. Panel wiring inspection
  8. Functional operation verification

04_RELAY & BREAKER RETROFITTING

SPK supports modernization and retrofit requirements for protection relays and circuit breakers, helping extend equipment functionality and improve system performance.

Activities

  1. Protection relay retrofitting
  2. Circuit-breaker retrofitting
  3. Relay replacement
  4. Control wiring modifications
  5. Protection-scheme modifications
  6. Functional testing after modification
  7. Commissioning support

05_TRANSFORMER & SWITCHGEAR SERVICING

Regular servicing and inspection of transformers and switchgear helps maintain equipment reliability and identify developing issues before they affect system operation.

Activities

  1. Transformer inspection
  2. Transformer servicing
  3. Circuit-breaker servicing
  4. Switchgear inspection
  5. Mechanical operation checks
  6. Electrical connection inspection
  7. Equipment condition assessment
  8. Corrective maintenance

06_ELECTRICAL LOAD & POWER ANALYSIS

SPK performs electrical measurements and analysis to help identify abnormal operating conditions, loading issues and opportunities for improved system performance.

Activities

  1. Electrical load analysis
  2. Power measurement
  3. Load distribution assessment
  4. Operating-condition analysis
  5. Equipment loading assessment
  6. Power-system performance monitoring
  7. Identification of abnormal conditions

07_EQUIPMENT TESTING & CONDITION MONITORING

Ongoing testing and monitoring helps assess equipment condition and identify potential electrical or mechanical issues before they result in operational failures.

Activities

  1. Electrical equipment testing
  2. Performance monitoring
  3. Condition assessment
  4. Functional testing
  5. Protection-system checks
  6. Equipment performance verification
  7. Maintenance recommendations

08_SWITCHYARD & SWITCHGEAR MAINTENANCE

Regular switchyard and switchgear maintenance helps maintain equipment cleanliness, accessibility, operational reliability and safe working conditions.

Activities

  1. Switchyard inspection
  2. Switchgear cleaning
  3. Equipment cleaning
  4. Visual inspection
  5. Mechanical condition checks
  6. Electrical connection inspection
  7. General maintenance activities
  8. Site housekeeping and safety checks

09_PREVENTIVE & CORRECTIVE MAINTENANCE

Based on inspection findings and equipment condition, SPK performs preventive and corrective maintenance activities to address identified issues and maintain reliable system operation.

Activities

  1. Preventive maintenance planning
  2. Routine inspection
  3. Fault identification
  4. Corrective maintenance
  5. Component replacement
  6. Equipment restoration
  7. Maintenance recommendations
  8. Service reporting