Ihe nlere ngwa ngwa nke DC a (nke a na-akpọkwa DC winding resistance tester) bụ ngwaahịa ọgbọ kachasị ọhụrụ maka ịlele nguzogide DC nke ndị ngbanwe.A na-ahazi ya maka ịlele nguzogide DC nke windings nke okpukpu atọ nke nnukwu ikike ngbanwe.Enwere ike ịnwale nguzogide DC nke windings nke okpukpu atọ nke transformer n'otu oge.Maka mgbanaka na-achịkwa voltaji na-ebu ibu, ọ dịghị mkpa ịkwanye onye na-agbanwe mgbata ozugbo, na oge nha bụ otu ụzọ n'ụzọ atọ nke nhazi otu usoro ọdịnala, nke nwere ike belata oge ọrụ na ike ọrụ.Mita na-eguzogide ozugbo na-anabata nnukwu ihuenyo kristal mmiri mmiri, ihe ngosi eserese China niile, doro anya ma nwee nghọta, yana ọrụ ahụ dị mfe.Ma kwadebere ya na ngwa nbipute panel na nnukwu ikike na-adịghị agbanwe agbanwe, ị nwere ike ịchekwa ma bipụta nsonaazụ nha.Data ule kwụsiri ike, ngwa ngwa ma na-emegharị ya, ọ bụkwa nhọrọ kacha mma maka ịlele nguzogide DC nke ndị na-agbanwe agbanwe na saịtị.