This will be the second part of the table about Power Transformer Electrical and Mechanical Protection.
While I tried my best to ensure the correctness and completeness of the entries, it would be nice if someone could also share and give update on the procedures which is applied on their field of work.
While I tried my best to ensure the correctness and completeness of the entries, it would be nice if someone could also share and give update on the procedures which is applied on their field of work.
INDICATORS | NATURE OF TROUBLE | EFFECTS | REMEDIAL MEASURES | NOTES |
Power Transformer Bucholtz Alarm | Accumulation of gas generated inside tank | Insulation deterioration | Eject Gas | - |
Power Transformer Bucholtz Trip | Severe gas generated due to decomposition of Transformer internal parts | Power Transformer Shutdown/isolation; actuates lockout relay | Determine source of gas generated, test entire Transformer for internal faults | Never energize the equipment unless satisfactory test results for operation is obtained |
Power Transformer Pressure relief device operated | Excessive accumulation of internal pressure due to gas generated inside the tank | Power Transformer Shutdown/isolation; actuates lockout relay | Determine source of gas generated, test entire Transformer for internal faults | Reset Pressure relief device |
Power Transformer surge relay trip | Impulsive oil rise/drop | Power Transformer Shutdown/isolation; actuates lockout relay | Determine source of gas generated, test entrie on-load tap changer tank | Check for severe internal fault due to oil leaks |
Power Transformer Oil Level Alarm | Main Tank Oil leaks or over filling of insulating oil | Critical Transformer Oil Level Alarm | Check gaskets, valves, oil pipes, conservator gauge, radiator, add or reduce oil | Alarm may be due to lower maximum oil level inside tank |
Power Transformer On Load Tap Changer level alarm | On Load Tap Changer Tank leaks or over filling of insulating oil | Critical Diverter Oil Level Alarm | Check gaskets, valves, oil pipes, conservator gauge, radiator, add or reduce oil | Alarm may be due to lower maximum oil level inside tank |
0 comments:
Post a Comment
Anything in your mind you want to share? Feel free to leave your comments