I mea e pale ai i ka pilikia leakage, ma waho aʻe o ka hoʻokumu ʻana o kapuʻu hoʻouka, he mea nui loa nō hoʻi ke koho ʻana i ka mea pale leaka. Wahi a ke kūlana aupuni GB/T 187487.1, pono e hoʻohana ka mea pale leaka o ka puʻu hoʻouku i ke ʻano B a i ʻole ke ʻano A, ʻaʻole wale ia e pale aku i ka leaka AC, akā pale pū kekahi i ka pulsating DC. ʻO ka ʻokoʻa nui ma waena o ke ʻano B a me ke ʻano A, ʻo ia ka pale hou ʻana o ke ʻano B e kūʻē i ka leaka DC. Eia nō naʻe, ma muli o ka paʻakikī a me nā palena kumukūʻai o ka ʻike ʻana i ke ʻano B, koho ka hapa nui o nā mea hana i kēia manawa i ke ʻano A. ʻO ka pōʻino nui o ka leaka DC ʻaʻole ia ka ʻeha pilikino, akā ʻo ka pōʻino huna i hoʻokumu ʻia e ka hāʻule ʻana o ka mea pale leaka mua. Hiki ke ʻōlelo ʻia he mau pōʻino huna ka pale leaka o kēia manawa o nā puʻu hoʻouku ma ka pae maʻamau.
ʻAno A ka mea haki kaapuni liki
ʻO ke kumu hana o ka mea haki kaapuni leaka ʻano A a me ka mea haki kaapuni leaka ʻano AC ua like like ia (ua ana ʻia ka waiwai leakage ma o ka mea hoʻololi au zero-sequence), akā ua hoʻomaikaʻi ʻia nā ʻano magnetic o ka mea hoʻololi. Hoʻomaopopo ia i ka tripping ma lalo o nā kūlana aʻe:
(a) ʻO ia ke ʻano AC.
(b) Ke koena o ke au DC pulsating.
(c) Ua kau ʻia kahi au DC mālie o 0.006A ma luna o ke au DC pulsating i koe.
ʻAno B mea haki kaapuni liki —— (CHINAEVSE hiki ke hana i ka RCD ʻAno B)
Hiki i nā mea haki kaapuni leaka ʻano B ke pale pono i nā hōʻailona AC sinusoidal, nā hōʻailona DC pulsating a me nā hōʻailona laumania, a he kiʻekiʻe aʻe nā koi hoʻolālā ma mua o nā mea haki kaapuni leaka ʻano A. Hoʻomaopopo ia i ka tripping ma lalo o nā kūlana aʻe:
a) Ua like ia me ke ʻAno A.
b) Ke koena o ke au sinusoidal alternating i 1000 Hz.
c) Hoʻopili ʻia ke au AC koena me kahi au DC maʻalahi o 0.4 mau manawa o ke au koena i helu ʻia
d) Hoʻopili ʻia ke au DC pulsating koena me 0.4 mau manawa o ke au koena i helu ʻia a i ʻole ke au DC maʻemaʻe o 10mA (ʻo ka mea ʻoi aku ka nui).
e) Nā au DC i koe i hana ʻia e nā kaapuni hoʻoponopono aʻe:
- ʻelua mau pilina alahaka hapalua nalu mai ka laina a i ka laina no nā mea haki kaapuni leaka honua 2-, 3- a me 4-pole.
- No nā mea haki kaapuni leaka honua 3-pole a me 4-pole, 3 mau pilina hōkū hapalua nalu a i ʻole 6 mau pilina alahaka hapalua nalu.
Ka manawa hoʻouna: Iune-19-2023