Medium Voltage Switchgear Maintenance
CHUNG TIN EQUIPMENT SERVICES COMPANY LIMITED provides maintenance – inspection – repair services for medium voltage switchgear systems (6kV – 22kV – 35kV) for factories, industrial zones, buildings, and transformer substations.
Our services help detect potential risks early, ensuring safe operation – power system reliability – and compliance with electrical regulations.
⚡ WHY IS MEDIUM VOLTAGE SWITCHGEAR MAINTENANCE IMPORTANT?
Medium voltage switchgear systems operate under conditions such as:
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High voltage
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High load current
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Dusty, humid, and high-temperature environments
Without periodic maintenance, the system may lead to:
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Partial discharge or electrical faults
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Insulation aging
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Poor contact and overheating
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Risk of complete power system failure
👉 Regular maintenance is essential to ensure safety, extend equipment lifespan, and maintain stable long-term operation.
🛠️ MAINTENANCE SERVICE SCOPE
1️⃣ General inspection of medium voltage switchgear
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Check cabinet condition, interlock systems, and warning labels
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Evaluate sealing condition, dust protection, and moisture protection
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Check wiring diagrams and circuit labeling
2️⃣ Maintenance of switching equipment
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Medium voltage circuit breakers (VCB, LBS)
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Disconnectors and earthing switches
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Inspection of mechanical and electrical interlocking mechanisms
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Adjustment of opening and closing operations
3️⃣ Cleaning – tightening – inspection
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Cleaning of insulation components, busbars, and insulators
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Tightening electrical contact points
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Checking for overheating at connection points
4️⃣ Inspection of protection systems & relay supply transformers
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Protection relays
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Current transformers (CT) and voltage transformers (VT) supplying protection relays
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Inspection of signals and control circuits
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Adjustment of relay parameters according to design specifications
5️⃣ Electrical testing
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Insulation resistance measurement
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Contact resistance measurement
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Inspection of switchgear grounding system
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Early detection of partial discharge phenomena
📋 STANDARDS & COMPLIANCE
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All work is carried out in accordance with current electrical safety regulations
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All testing activities are fully documented in official reports for:
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Periodic maintenance
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Inspection and acceptance
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Operation of medium voltage power systems
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👷 OUR TECHNICAL CAPABILITY
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Engineers and technicians certified in electrical safety
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Extensive experience working on medium voltage power systems
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Effective coordination with local power authorities
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Strict compliance with procedures and absolute safety during operation
✅ BENEFITS OF CHOOSING CHUNG TIN
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Reduced risk of electrical faults and unexpected outages
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Extended equipment lifespan
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Improved safety for people and assets
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Clear and transparent technical documentation
📞 CONTACT FOR CONSULTATION & SITE SURVEY
CHUNG TIN EQUIPMENT SERVICES COMPANY LIMITED
📍 Ho Chi Minh City – Nationwide service coverage
📧 Email: info@chungtin.vn
🌐 Website: www.chungtin.vn
