Transformer-ka hadda jira ee danab hooseeya waa nooc ka mid ah qalabka u rogi kara korontada AC-ga sare una rogi kara koronto hoose oo si fudud loo xakamayn karo. Waxa uu leeyahay waxqabad aad u wanaagsan iyo saxnaan deggan.
1. Badeecadu waxay leedahay qaab-dhismeed cusub, muuqaal qurux badan, rakibid ku habboon, mug yar, miisaan fudud, saxnaan sare iyo awood weyn.
2. Fududee qaab-dhismeedka nidaamka, yaree kharashka oo hubi in nidaamka uu yahay mid aad u sarreeya.
Halbeegga farsamada ee ugu weyn
4.1 Danab naadir ah: 0.5kV
4.2 Soo noqnoqoshada la qiimeeyay: 50Hz
4.3 Koronto aasaasi ah oo la qiimeeyay: 10A, 12.5A,
4.4 Heerka sare ee hadda la qiimeeyay: 5A
4.5 Qodobka awoodda culeyska labaad: 0.8 (dib u dhac)
4.6 Wax soo saarka la qiimeeyay: 2.5VA, 5VA, 10VA. Marka culayska la qiimeeyay uu yahay 5VA ama 10VA, wax soo saarku waa 3.75VA. Marka culayska la qiimeeyay uu ka sarreeyo 10VA, culayska ugu yar waa rubuc ka mid ah culayska la qiimeeyay.
4.7 Sumcadda: 0.5
4.8 Iska caabinta dahaarka: ka weyn 20M inta u dhaxaysa gariiradda koowaad iyo gariiradda labaad iyo dhulka.
4.9 Danabka u adkaysta soo noqnoqoshada korontada: danabka u adkaysta korontada ee gariiradda koowaad oo leh gariiradda labaad iyo dhulka ayaa gaari kara 3kV.

Muuqaalka iyo cabbirka rakibidda
| Lambarka Moodeelka | Marka ampere-leexasho | Cabbirka qaabka | Cabbirka godka | ||||||
| D | h | H | d | ||||||
| LM-0.5 | 150~300 | 86 | 54 | 94 | Φ40 | ||||
| 400~600 | 95 | 58 | 105 | Φ50 | |||||