Abubuwa da Kudin Abubuwan 10kV Na Gwamnati

I. Yanayin Kula da Tashin Hubucin

(1) Tashin Hubuci na Kwalba ta Switchgear

• Babu kisan gaba ko kisan kai a kwalba.

• Kwakwa na kwalba ba ta shafi cika, kusa da kawo, ko kawo.

• Kwalba ta zama da kuma yana da kyau, bane da abubuwa masu juyin.

• Tambaya da idan kwalba suna da tsari, babu kusan kawo.

(2) Tashin Tsari na Switchgear

• Aikacewar da kuma meter sun nuna ma'adani (kamar hanyar tattalin aiki, babu kisan kai da kuma ana iya sanar da haliyar zuwa).

(3) Tashin Tsari na Mazaunin, Kirkiro, Wata, da Kable

• Yi amfani da thermometer na infrared don tashin mazaunin, kirkiro, wata, da kable: tsari mai tashar ≤ 60°C.

• Babu rayuwa masu karamin a cikin kwalba.

(4) Tashin Hukumomin Kirkiro, Dangantaka, Aikacewar, da Hukumomin Selector

• Hukumomin circuit breaker na buka/yanke na daidai.

• Babu alamun da suka faru.

• Dukkan selector switches suna da hukumomin daidai.

II. Yanayin Tafin Shekarar

(1) Tashin, Tsaftaci, da Gargadi na Kwalba

• Tsaftace a alkohol da kasa mai kyau don haka cewa bane da kusurwa ko kudin.

• Tashin kwakwa na kwalba don kisan rusti ko kusan kawo; idan an samu, yi gargadi da kuma kwayoyi.

(2) Tashin da Tsaftacin Compartment na Kable

• Kayan da take da kable suna da tsari.

• Sakansu da ke kula da kable ba su ka kusa.

• Tambaya da idan kable da kuma alamun wara suna da tsari, babu kusan kawo.

• Compartment na kable ya fi kuka, babu kusan maye; tsaftace da kuma bane da kusurwa.

• Tsaftace insulators da alkohol da kasa mai kyau don haka cewa bane da kusurwa ko kudin.

• Kirkiro na grounding ya fi kuka, babu kusan kusa.

(3) Tashin Grounding Switch

• Yi amfani da kofin na grounding switch don tashin kula da kula.

• Amfani ga tushen kula ya fi kuka, babu kusan kusa.

• Hukumomin switch ya fi dace da alamun a panel na gaba.

(4) Tashin da Tsaftacin Compartment na Circuit Breaker

• Gada main circuit breaker zuwa test position da kuma yi amfani da trolley don kula shi duk da compartment. Tashin primary isolation contacts da kuma copper busbars don kisan burning ko arcing. Idan ya dace, yi rubuta da sandpaper da kuma tsaftace da kasa mai kyau.

• Yi amfani da layer uniform da conductive grease (0.5–1 mm thick) zuwa primary isolation contacts na main circuit breaker.

• Zama dukkan sakansu na primary circuit zuwa torque values na bayanin. Bayan zama, tashin spring washers ya fi kuka. Mark anti-loosening lines zuwa dukkan sakansu na zama.

• Tsaftace dukkan mazaunin a cikin compartment na circuit breaker da alkohol da kasa mai kyau don haka cewa bane da kusurwa ko kudin.

• Saka trolley na circuit breaker zuwa compartment da kuma zuwa test position. Yi amfani da kula da kula manual close-open operation cycle. Tashin tushen kula ya fi kuka, alamun mechanical position indication, breaker position indication, da spring charged/uncharged status.

• Bayan tashin, saka breaker zuwa service position da kuma yi amfani da power on/off operations a nan.

(5) Tashin da Tsaftacin Compartment na Secondary Circuit

• Tashin wiring na secondary: connections ya fi kuka da kuma wire labels ya fi tsari.

• Tashin compartment ya fi kuka: bane da kusurwa ko abubuwa masu juyin.

• Idan ya dace, tsaftace da kuma zama secondary terminals.

III. Tafin Tashin Shekarar

(1) Tashin Insulation Resistance Test na Main Circuit

• Yi amfani da 2500 V megohmmeter.

• Measured value > 50 MΩ.

(2) Power Frequency Withstand Voltage Test
(Test on main circuit: phase-to-ground, phase-to-phase, and across open contacts)

• Bayan tafin major maintenance: apply test voltage as per standard.

• During service: apply 80% of the standard test voltage.

(3) Tashin Insulation na Auxiliary and Control Circuits

• Yi amfani da 500 V megohmmeter.

• Measured value > 2 MΩ.

IV. Yanayin Tafin Fault-Based (Idan Ya Dace)

(1) Alignment na Operating Position na Circuit Breaker

• Yi amfani da conductive grease ko Vaseline zuwa inner ring na moving contact.

• Saka trolley zuwa service position da kuma gada shi.

• Yi amfani da caliper don tashin effective engagement depth between moving and stationary contacts a cikin part na visible: ya fi 15–25 mm.

(2) Repair ko Replacement na Circuit Breaker

• Carry out in accordance with manufacturer’s specific technical specifications.

(3) Repair ko Replacement na Instrument and Meter

• Carry out in accordance with manufacturer’s specific technical specifications.