Ko da yin abu na iya haifar da hankali ga current transformer kuma tushen bayanai don hankalin?

A cikin matsayin mai gagar da zafiya, ina yi waɗannan tsohuwar kawo (CTs) kowace rana. CTs suna canza mutuwa mai yawa daga farkon zuwa fadin zuwa masu hanyar kananan gida / ƙungiyoyi da kuma kula, wadanda suke amfani a cikin tsari na maza ta hanyar. Amma, suke shafi abubuwa daga baya (kamun muhimmanci, sauyin gaba, k.d.s.) da kuma ƙasa (wata ƙaramin sashe). Wannan abubuwan, kamar ci gaba na fadin ko karamin sashe, suna ƙarewarsa kula da ingantaccen, yadda ake iya bayyana, da kuma ƙarfafar jirgin sama. A nan, ina ba da misali daga ilimi.

1. Tattalin CT (Na'urar Gagar Da Zafiya)

Wani CT yana da kawoyi na farko / fadi, ƙaramin hadu, da kuma sashe (mai zama, SF6, kokarin sashe). Kawar farko yana gudana a cikin tsari, kafin fadin yana haɗa da alƙalar / relays. Muhimmiyar: Yawan kawoyi na farko ita ce, yawan kawoyi na fadi ita da ya, da kuma amfani a tsakanin ci gaba. Muhimmin daidai: Ba a tuna ci gaban fadi, amma ake ƙara da kyau (Ina nemi lalace mai ci gaba).

2. Funtuka & Tsarin (Na'urar Gagar Da Zafiya)

CTs suna ƙara mutuwa mai yawa don inganta kula da kula, tare da induksiya na electromagnetic, da kuma ƙara hukumar da mutuwa mai yawa. A lokacin da na yi ƙofin, ina duba mutumai na farko - fadi don ɗaukan CTs.

3. Ingantaccen Kammala
(1) Optical CTs (OTA)

Tare da Faraday magneto-optical effect, an amfani da su a cikin ƙarin ƙungiyoyi. Mai karfi ga hawa amma yana da muhimmanci a cikin samun magnetic fields.

(2) Low-Power CTs

Daga ƙaramin microcrystalline alloy, suna ba da yankunan linear masu yawa, karfin kusa, da kuma nau'in ƙofin don mutuwa mai yawa – ideal don ƙarin kula na kayan adawa.

(3) Air-Core CTs

Babu ƙaramin hadu, ana ƙara ƙaramin hadu. Sun fi girma a cikin relay protection saboda anti-interference mai yawa, yana da muhimmanci a cikin yanayi mai sauƙi.

4. Abubuwan Da Sune Shafi (Ilimi Na'urar Gagar Da Zafiya)
(1) Karamin Sashe Thermal Breakdown

CTs na mutuwa mai yawa suna gina hawa / dielectric losses. Karamin sashe mai asibiti (kamar yadda aka zuba ta) yana ƙara ƙaramin hawa da karamin sashe – yana da muhimmanci a cikin tushen da ya gama.

(2) Partial Discharge

Capacitance na gaba CT yana gudana ta hanyar, amma ƙaramin ƙofin / tsari mai asibiti (kamar yadda aka gudana screens) yana ƙara samun electric fields. Discharges mai ban mamaki yana ƙara ƙaramin capacitor failures.

(3) Excessive Secondary Load

Yanayi mai yawa a cikin 220 kV systems yana ƙara voltage / current na fadi, wanda yake ƙara ƙaramin errors. Abubuwan yana iya ƙara ƙaramin ƙaramin ƙaramin cores, misoperate relays. Ci gaban fadi (kamar yadda akwai wires) yana ƙara ƙaramin high voltages – dangerous!

5. Tattaunawa Don Abubuwan
(1) Duba Operational Rules

• Sauyi: Sauyi circuits, windings, da kuma instruments a tsakanin series, amfani da configurations (single-phase, star).

• Error Compensation: Idan za a ƙara ƙaramin windings / cores don ƙara ƙaramin errors tare da capacitance / inductance.

• Calibration: Yi demagnetization / polarity tests bayan installation / maintenance.

(2) Emergency Handling (Safety First)

• Power Off: Koyi power immediate don inganta damar.

• Inspect Secondary Circuit: Duba ci gaban fadi, ƙara yawan mutuwa na farko, amfani da gear mai sashe, da kuma duba diagrams.

Don ci gaban fadi:

• Assess Impact: Ƙara ƙaramin circuits, tattauna a cikin dispatch.

• Reduce Load / Isolate: Haɗa loads da kuma de-energize idan an ƙara ƙaramin.

• Short-Circuit Secondary: Amfani da materials mai ƙofin; sparks mean downstream faults, no sparks mean upstream issues.

(3) Techniques for Detection

• Insulation Testing: Measure dielectric loss, capacitance to spot defects – good for aging assessment.

• Infrared Thermography: My key tool! Detects loose connections / thermal issues quickly.

Conclusion

CTs suna da muhimmanci don ƙarfafar jirgin sama. Ƙara ƙaramin tsari, principles, da kuma tattaunawa don abubuwan yana ƙara ƙarfafa. Duba guidelines, amfani da ƙarin ƙofin, da kuma tattaunawa don emergency yana ƙara ƙaramin abubuwan – securing a safer grid.