Electrical Safety Tutorial
Electrical Safety Useful Resources
Selected Reading
- Implications of Human Behaviour
- Types of Safety Equipment
- Safety Measures During Preventive Maintenance
- Crane Handling Safety
- Generator Handling Safety
- Motor Handling Safety
- Transformer Safety
- Bonding
- Safety Measures During Handling Lighting Protection Equipment
- Precautions Against Highly Flammable Contents
- Secondary Ex-Protection
- Primary Ex-protection
- Duties and Obligations
- Maintenance of Unprotected Equipment
- Procedure to Mark Unprotected Equipment
- Test Certifications
- Safe Electrical Equipment Design Characteristics
- Protection Against Weather Complexities
- Classification of Temperature
- Safety Measures Related to Gas/Ducts/Fibre material
- Classification of Hazard-Prone Areas
- Cables
- Types of the Supply System
- Earthing
- Earth Fault Protection
- Short Circuit Protection
- Low Voltage Overload Protection
- Indian Standards
- Power System
- Electrical Safety - Home
Electrical Safety Useful Resources
Selected Reading
- Who is Who
- Computer Glossary
- HR Interview Questions
- Effective Resume Writing
- Questions and Answers
- UPSC IAS Exams Notes
Transformer Safety
Electrical Safety - Transformer Safety
Transformers are a major source of power supply to any industry.
The conversion of voltage level can cause serious damage to a person or to the nearby area if not kept under tight protection measures. It is the duty of safety inspector to run the following condition assessments on the transformer with the following checkpst −
Main transformer inspection check pst
| Task | Yes | No | N/A | Comments |
| Main Tank | ||||
| Paint System in Good condition | ||||
| Rust Observed | ||||
| Tank grounds in Good condition | ||||
| Conduits and fittings secure | ||||
| External core ground provider | ||||
| Oil Leakage observed | ||||
| Coopng system | ||||
| Radiator or cooler fins cleaned | ||||
| All valves to main tank open and secure | ||||
| All fins in place and operational | ||||
| All oil pumps in place and operational | ||||
| Oil flow indicators function properly | ||||
| Excessive vibration or noise observed | ||||
| Leaking of oil if any | ||||
| Oil Preservation | ||||
| Positive pressure of inert gas | ||||
| Proper setting of regulator of Nitrogen blanket | ||||
| Correct pressure check of gas blanket | ||||
| Bushing | ||||
| All clean and zero defect | ||||
| Proper check of oil levels | ||||
| Oil leakage if any | ||||
| De-energized tap changer (DETC) | ||||
| Location of Position indicator tap | ||||
| Locking mechanism checked | ||||
| Load Tap Changer (LTC) | ||||
| Location of Position indicator tap | ||||
| Sipca gel breather | ||||
| Oil leakage if any | ||||
| Control Cabinet | ||||
| Connections/components in good condition | ||||
| Weather tight seals checked | ||||
| Strip heaters checked | ||||
| Protective devices | ||||
| Oil Temp indicator reading | ||||
| Oil Temp indicator set points | ||||
| Winding Temp indicator reading | ||||
| Winding Temp indicator set points | ||||
| Buchholtz relay alarm/trip | ||||
| Gas detector alarm/trip |