Electrical Maintenance 

Electrical Maintenance section provides comprehensive maintenance services for electrical systems across all industries. ESCO specializes in generator testing and inspection, as well as expertise in Auto Voltage Regulator (AVR) and protection systems. With nearly 30 years of accumulated experience, we are equipped to perform partial discharge measuring both online and offline.

Additionally, ESCO is capable of inspecting substations for all voltage ranges and proficient in maintaining transformers, transmission systems, and industrial motors.

Electrical maintenance services

Generator

• Generator inspection and overhaul
• Generator cleaning
• EL CID test on generator stator
• Wedge tightness test
• Generator bore scope inspection
• AC/DC Hi pot test
• Online & Offline partial discharge test
• RSO, PDC test
• Generator AVR and control system inspection and test
• Wind turbine generator inspection

Motor

• Motor inspection and overhaul

Transformer

• Power and distribution transformer inspection and test
• Dynamic resistance test of OLTC
• SFRA test of Power Transformer

Switchyard/ Distribution system

• HV switchyard and MV Switchgear equipment inspection and test
• Metering transducer inspection test and calibration
• Protective & Synchronizing relay inspection and test
• Station battery, Charger, and UPS maintenance
• Grounding resistance test and repair
• Troubleshooting of electrical and control systems