Sideen u cabbirnaa iska caabbinta dabaysha, maxayse ka dhigan tahay dheelitir la'aanta wejiga?
Tijaabada iska caabinta dabaysha DC waxay cabbirtaa iska caabbinta ohmic ee taransfooriyaha kasta oo dabaylaha ah iyadoo la isticmaalayo -ohmmeter-ka-hortagga hooseeya (micro{1}}ohmmeter) ama DC - isha hadda (10 A ama ka badan oo ah korontadu).
Habka Imtixaanka:
1. Go'doomiyaha taransfoorka oo bixi dhammaan kharashyada hadhay.
2. Tijaabada isku xidhka waxay u horseedaa marinnada dabaysha (tusaale, H1-H2 ee HV, X1-X2 ee LV).
3. Duri hadda deggan ee DC oo cabbir hoos u dhaca danab marka uu xasillo.
4. Isku mar ku qor heerkulka saliidda si loo saxo heerkulka.
5. Ku celi dhammaan wejiyada oo taabo boosaska.
Isku dheelitir la'aanta tarjumaada (sida IEEE Std 62-1995):
• <2% dheelitir la'aanta → La aqbali karo (1% cutubyada cusub)
2% dheelitir la'aanta ayaa soo jeedinaysa:
- Xidhiidhada beddelka tubbada dabacsan ama oksaydhized -
- Xidhiidhada go'an ee ka baxa meelaha baadiyaha ah
- Xadhkaha jaban ee jilbaha badan{1}
- Burburinta dabaysha gudaha
Saxitaanka Heerkulka (Dabaylaha Copper):
R₂=R₁ × ({1}} T₂) / ({2}} T₁) halka T₂ uu yahay heerkulka tixraaca (badanaa 75 darajo) T₁na waa heerkulka la cabbiro.