Mai suna a kawo shiga Power Transformer?

Zaka iko da Commissioning of Power Transformer?

Ma'ana ta Transformer Commissioning

A cikakken ma'ana, Transformer commissioning yana nufin tattalin aiki na transformer mai kuli da duka a lokacin da ake shiga shekarun bayan ake yi dukan abubuwan ilimi da ake gudanar da sauti.

 Buchholz Relay Test

Yana bukatar samun aiki da alarm da trip na Buchholz relay tare da ake faɗi zafi zuwa pocket na ilimi da ke cikin relay.

Low Oil Level Alarm Test

Yana bukatar samun low oil level alarm na magnetic oil gauge.

Temperature Indicator Test

Yana bukatar samun contacts na Oil Temperature Indicator da Winding Temperature Indicator don alarm, trip da control, kuma ake set su zuwa temperature na buƙata.

Cooling Gear Test

Yana bukatar samun IR values da settings don aiki na oil pumps da fans motor.

Yana bukatar samun settings na alarm trip contact na differential pressure gauge, oil and water flow indicators, idan an bayar su.

Marshalling Box

Yana bukatar samun wiring daga abubuwan fadada zuwa Marshalling kiosk.

Protective Relay Test

Yana bukatar samun trapping na associated circuit breakers tare da ake yi aiki na differential relay, over current relay, earth fault relay da wasu protective relays masu amfani a kan.

Magnetizing Current Test

A cikin Magnetizing Current Test, ya kamata ake ci gaba-gaban magnetizing current tare da ake bayar 400 V, three-phase 50 Hz daga HV side, domin ake rage LV side open-circuited, kuma a nan ake koyar da values across different phases.

Additional checks during commissioning of power transformer

• Duka oil valves suna cikin hanyar da suka fi sani ba suka kasa ko kafa saboda haka.

• Duka air pockets suna kawo.

• Thermometer pockets suna kafin oil.

• Oil yana cikin hanyar da suka fi sani a bushing, conservator tank, diverter switch tank, etc.

• Arcing horn na bushing yana cikin hanyar da suka fi sani

• CT polarity yana cikin hanyar da suka fi sani idan an bayar bushing mounted CTs.