Ndozi na ihe achọrọ kwa ụbọchị nke onye na-agbanwe ike nke mmanụ na-etinye n'ime tap-changer.
1. Tupu e tinye ihe mgbanwe tap-changer n'ọrụ, a ga-enyocha ma ọkwa mmanụ ọ dị otu, na ọ dịghị mmiri na-agbapụta, a ga-echekwa igbe njikwa nke ọma site na mmiri. 2. Mgbe etinyere ihe mgbanwe gas nke na-agbanwe tap-changer ọhụrụ enyere ọrụ, onye na-arụ ọrụ kwesịrị ịhapụ...
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