Kablolarin Jirgin da Kadan Da Dabbobi Da Kable Tray
Tafi kable tray don inganci masu rufin mai yauwa da kafuwarsa. Tray kable jirgin da kadan ya kamata zama na biyu da ba a gajarta. Idan an samu abin da ba daidai ba, ya kamata a yi amfani da shi da takaice, sannan za a ruhutsar da reshen.
Tafi kable tray wanda suka duka zuwa switchrooms wadanda ake magana a tsakiyar gwamnati ko wurare da ke mataki.
Tafi kable pits da trenches don maye da ruwan da mutanen da take faru, sannan idan an samu ruwa ko mutane, ya kamata a sauya ruwan da kuma kawo mutanen baya.
Kablar da kable terminations wadanda a cikin pits da trenches ya kamata zama na biyu da ba a gajarta, da naɗa inganci mai yauwa da kafuwarsa, ba wasu lalace-ba ko karamin cuta.
Tafi kable sheaths wadanda a kan gaba da naɗa inganci, sannan supports su na biyu da ba a gajarta.
Dukkan makarantun kafofin da maƙasinta suna da lafiya a fahimtar hanyar canza da kula da kablar daga cikinsu.
Switchgear Jirgin Da Ring Main Units
Indicators da live display devices wadanda a kan panel switchgear ya kamata zama na biyu. Selector switch na mode ta yi aiki da mechanical operating handle ya kamata zama a cikin hali da ita, inda indicators na control da voltage circuit power ya kamata zama na biyu.
Indicators na open/closed position ya kamata zama na biyu da hali na amfani da shi a lokacin da yake.
Meters da relays wadanda a kan panel ya kamata zama na biyu, ba wasu lalace-ba, odors, ko karamin cuta. Switch na mode ta yi aiki ya kamata zama "remote control" a lokacin da yake.
Internal lighting ya kamata zama na biyu. Tun daga viewing window, equipment na duniya ya kamata zama na biyu. Insulators ya kamata zama na biyu da ba a gajarta.
Ba ya kamata a samu discharge sounds, odors, ko irregular mechanical noises a cikin cabinet. Temperature rise ya kamata zama a cikin limits na biyu.
Cabinet da busbar supports ba ya kamata a samu overheating, deformation, ko sagging. Dukkan screws enclosure ya kamata zama na biyu, tight, da ba a gajarta. Grounding ya kamata zama na biyu.
Vacuum interrupter na vacuum circuit breaker ba ya kamata a samu leakage. Idan shield na duniya ana yi glass, surface shi ya kamata zama na golden metallic luster, ba wasu oxidation ko blackening. SF6 circuit breaker gas pressure ya kamata zama na biyu. Porcelain components da insulating barriers ya kamata zama na biyu, ba flashover marks-ba. Connections da breaker itself ba ya kamata a samu overheating. Don enclosed switchgear wadanda ba a iya tara temperature directly, ya kamata a yi hand touch don tafi amfani da shi.
Operating mechanism na circuit breaker ya kamata zama na biyu. Tafi DC contactors don dust accumulation da corrosion na secondary terminals.
Grounding ya kamata zama na biyu, da cabinet sealing da rodent/dust protection features ya kamata zama effective.
Transformers
Monitor transformer temperature da zama na biyu temperature controller. Don oil-immersed self-cooled transformers, top oil temperature ba ya kamata zama fiye da 95°C, da generally ba ya kamata zama fiye da 85°C. Don forced-oil circulation air-cooled transformers, top oil temperature generally ba ya kamata zama fiye da 75°C da must not exceed 85°C. Don dry-type transformers, winding temperature rise ba ya kamata zama fiye da 100°C (measured by resistance method). Operating temperature generally ya kamata zama kadan da 110°C, da maximum da 130°C.
Tafi transformer body da high/low-voltage terminals don discoloration ko overheating. Tafi abnormal sounds ko detect unusual odors.
Zama na biyu exterior da ba a gajarta da free from vibration.
Dukkan connecting conductors da busbars ya kamata zama na biyu da normal temperature rise limits.
Low-Voltage Distribution Panels
Verify connections of main busbars and branch circuit switches (knife switches, circuit breakers) are secure, and that terminal screws are tight. Confirm meter indications are correct.
Inspect all connection points in outgoing circuits for signs of overheating or discoloration.
During operation, check whether three-phase loads are balanced and three-phase voltages are equal. Monitor voltage drop in workshop loads to ensure it remains within specified limits.
Check for unusual sounds or odors inside distribution panels and electrical components.
For circuit breakers with arc chutes, ensure all three-phase arc chutes are present and undamaged.
Inspect the operation of circuit breakers and electromagnetic coils—ensure smooth engagement, no coil overheating, and no excessive noise.
Check that busbar insulation supports are undamaged and properly aligned, and that mounting screws are tight.
Keep electrical components clean and ensure grounding connections are secure and functional.
Ensure all doors and windows of the switchroom are intact and undamaged, cabinet doors are complete, and there is no water leakage from the roof during rain.
Capacitor Compensation Panels
Listen for internal discharge sounds in capacitors. Check for bulging, oil leakage, or damage to the casing.
Inspect porcelain components for cleanliness and any signs of discharge.
Ensure surge arresters are intact and grounding connections are secure.
Inspect series reactors and discharge transformers for damage.
Monitor capacitor room temperature. Winter minimum and summer maximum temperatures must comply with manufacturer specifications.
Check for broken external fuse links.
Monitor three-phase current readings for balance. Sudden fluctuations or increases should be investigated. Phase current imbalance should not exceed 10%.
Inspect discharge coils and three-phase discharge indicator lights for proper operation.
Check that oil level in oil-filled capacitors is within acceptable range.
Verify that the capacitor bank disconnect switch positions are correct.
Electrical Room Environment
Electrical rooms should have clear identification signs on doors, and door locks should be functional.
No Scrap Materials should be stored in the room. Equipment should be free from dust and oil buildup, and floors should be clean, dry, and free from debris. Maintain a tidy and clean environment.
Lighting and ventilation systems should be adequate and functional.
Fire protection equipment should be complete and effective.
Room temperature should not exceed 40°C, and relative humidity should be below 80%.
Drainage should be unobstructed, with no water seepage from roofs or underground areas. Rodent and insect protection systems should be fully operational.
Safety tools and protective equipment should be stored in designated, easily accessible locations.