Kananan Da Kula Zama Aikin Tausayi Daga Turuwa Daidai

Yadda mai girman mutanen transformer na nufin karamin inganci da ke cikin abubuwan da ake baka a kan transformer, kuma yadda ake fada a kan alama masu transformer shine yadda ake fada. A cikin gwamnatin transformers, akwai halayyar da ake yi wa mafi girma saboda girman mutane mafi yawa, kuma akwai halayyar da ake yi wa mafi girma ko kawo gaba wanda ke haifar da lafiya ta zabe ko kuma hara. Wannan hanyoyin da ba a tsari ba suka taimaka wajen tabbatar da kyau da lafiya a cikin gwamnati masu sayarwa. Saboda haka, ya kamata a duba yadda ake fada daidai don in tabbatar da gwamnatin sayarwa da lafiya da tattalin arziki.

A cikin tasirin yadda ake fada daidai don transformers masu solid-state, yawanci ake bukata da wannan abubuwan:

• Voltage na Muka: Voltage na muka na nufin daga cikin voltage da ake bayar zuwa transformer. Transformers masu solid-state suna da rage da ake bayar voltage (misali, 220V ~ 460V), kuma transformer daidai ya kamata a zaba da wannan rage.

• Voltage na Ci: Voltage na ci na nufin daga cikin voltage da ake bayar daga transformer. Transformers masu solid-state suna da rage da ake bayar voltage (misali, 80VAC ~ 480VAC), wanda ya kamata a duba a cikin zabin transformer daidai.

• Girman Mutane Da ake Fada: Girman mutane da ake fada na nufin muhimmanci da transformer zaka iya shiga, kafin ake bayar a kilovolt-amperes (kVA). Girman mutane da ake fada ana iya duba daidai da rike, idan abin da ake magana da shi yana bukata amfani da mafi girma, ya kamata a zaba transformer da mafi girman mutane.

• Power na Muka: Power na muka na nufin daraja da ake bayar voltage na muka da current na muka, kafin ake bayar a kilowatts (kW).

Saboda haka, a cikin duba abubuwan, an fara daidai ake rubuta formula ta kasuwanci don transformers masu solid-state kamar haka:
Girman Mutane (kVA) = Voltage na Muka (V) × Current na Muka (A) / 1000.

Tambayar: Transformers masu solid-state suna da wahala da transformers masu sayarwa. Transformer masu solid-state shine yadda ake sanya converter da transformer, wanda yake da muhimmanci a cikin amfani da static power conversion. Amma, hanyoyin da ake amfani da su suna da wahala da transformers masu sayarwa.

Hanyoyin da ake amfani da su don single-phase da three-phase transformers na haske. Misalinni na a cikin bayanin hanyoyin da ake amfani da su don three-phase transformers. Yadda ake fada daidai don girman mutanen transformer shine don duba mafi girman power da ke cikin phase (don single-phase transformers, wannan shine mafi girman power da ke cikin phase).

Kashe power da ke cikin phase (A, B, da C) daidai. Misali, idan total power da ke cikin phase A shine 10 kW, phase B shine 9 kW, da phase C shine 11 kW, kula mafi girman, wanda shine 11 kW.

Tambayar: Don abubuwan da ke da phase kawai, power da ke cikin unit ya kamata a kula mafi girman da ake fada a kan alama masu abin. Don abubuwan da ke da three-phase, kula total power daidai da 3 don in samun power da ke cikin phase. Misali:
Total power da ke cikin phase C = (300W × 10 computers) + (2kW × 4 air conditioners) = 11 kW.

Na biyu a cikin hanyoyin da ake amfani da su don girman mutanen transformer shine don duba total three-phase power. Amfani da mafi girman power da ke cikin phase kawai don in samun total three-phase power:
Mafi girman power da ke cikin phase kawai × 3 = Total three-phase power.

Amfani da mafi girman power da ke cikin phase C da shine 11 kW:
11 kW × 3 (phases) = 33 kW. Saboda haka, total three-phase power shine 33 kW.

Daga baya, 90% daga transformers da ke samu a kan market suka da power factor da shine 0.8. Saboda haka, ya kamata a kula total power daidai da 0.8:
33 kW / 0.8 = 41.25 kW (power da transformer yake bukata a kula a kW).

Idan ake buƙaci da Electrical Engineering Design Manual, girman mutanen transformer ya kamata a zaba daidai da load da ake fada. Don transformer kawai da take sa abin daidai, load factor β ana iya zaba da 85%. Wannan na nufin:
β = S / Se
Daga baya:
S — Calculated load capacity (kVA);
Se — Transformer capacity (kVA);
β — Load factor (typically 80% to 90%).

Saboda haka:
41.25 kW (apparent power requirement) / 0.85 = 48.529 kVA (required transformer capacity).Saboda haka, transformer da 50 kVA yana daidai.