Nkọwa
Isi teknụzụ ọrụ maka 10kA ZnO varistor inner core
Onyonyo Mba. | ZnO varistor isi n'ime | Ogo voltaji | MCOV(kV) | Malite voltaji fọdụrụnụ ugbu a | 2ms akụkụ anọ ugbu a mkpali na-eguzogide | 4/10us Ugo dị ugbu a na-eguzogide | ||
1/4us Lightning mkpali ugbu a (kV) | 8/20 us Lightning impulse current (kV) | 30/60us Lightning mkpali ugbu a (kV) | ||||||
1 | Φ44x90 | 3 | 2.55 | 11.3 | 9 | 8.9 | 250 | 100 |
2 | Φ44x120 | 6 | 5.1 | 22.6 | 18 | 16.8 | 250 | 100 |
3 | Φ44x120 | 9 | 7.65 | 33.7 | 27 | 23.8 | 250 | 100 |
5 | Φ44x150 | 10 | 8.4 | 36 | 30 | 23 | 250 | 100 |
6 | Φ44x150 | 11 | 9.4 | 40 | 33 | 27 | 250 | 100 |
7 | Φ44x150 | 12 | 10.2 | 42.2 | 36 | 30 | 250 | 100 |
8 | Φ44x180 | 15 | 12.7 | 51 | 45 | 38.5 | 250 | 100 |
9 | Φ44x210 | 18 | 15.3 | 61.5 | 54 | 46.2 | 250 | 100 |
10 | Φ44x240 | 21 | 17 | 71.8 | 63 | 54.2 | 250 | 100 |
11 | Φ44x270 | 24 | 19.5 | 82 | 72 | 62 | 250 | 100 |
12 | Φ44x300 | 27 | 22 | 92 | 81 | 69.8 | 250 | 100 |
13 | Φ44x330 | 30 | 24.4 | 102 | 90 | 79 | 250 | 100 |
14 | Φ44x330 | 33 | 27.5 | 112 | 99 | 86.7 | 250 | 100 |
15 | Φ44x360 | 36 | 29 | 123 | 108 | 92.4 | 250 | 100 |
Cheta na: Anyị nwere ike chepụta na-emepụta ngwaahịa dị ka ndị ahịa kpọmkwem chọrọ.
Ihe karịrị voltaji na sistemu ike nwere ike ime n'ihi ọkụ ọkụ ma ọ bụ ngbanwe ọrụ.Ndị a overvoltages nwere ike iru ize ndụ amplitudes maka ike usoro ngwa.Iji kpuchido ngwa eletriki sistemu na iji kwe nkwa ọrụ akụ na ụba na ntụkwasị obi, a na-etinye ndị na-ejide ịwa ahụ n'ihe fọrọ nke nta ka ọ bụrụ ụdị netwọkụ eletriki eletrik niile.A na-eji ndị na-ejide ịwa ahụ zinc oxide (ZnO) na-enweghị oghere.A na-ejikọkarị ndị na-ejide ịwa ahụ n'etiti nkeji oge na ọdụ ala.Ha na-amachi ọkwa voltaji na akụrụngwa dị ka ihe ntụgharị n'okpuru ọkwa voltaji na-eguzogide.
A na-ekewa axis oge n'ime oke oke ọkụ ọkụ na microsecond, na-agbanwe oke voltaji na millisecond na nwa oge overvoltage na nke abụọ.N'ime oke ọkụ ọkụ na ịgbanye oke ọkụ, oke nke oke voltaji nwere ike iru ọtụtụ n'otu nkeji ma ọ bụrụ na sistemụ enweghị nchebe njide.Onye njide nwere ike belata oke voltaji n'okpuru nguzogide akụrụngwa.Ihe omume a na-egosi n'ụzọ doro anya mkpa ọ dị ndị njide maka nchekwa oke ọkụ.
Owuwu nke Zinc Oxide Surge / Lightening Arrester:
Owuwu nke ZnO Lightening Arresters dị nnọọ mfe.Ha na-agụnye ụlọ mkpuchi nke e ji poselin mee na kọlụm dị n'ime bụ nke a na-eme ka blocks ZnO dị ka egosiri na foto dị n'okpuru.
Mgbochi ZnO na-enye Voltage- Ihe dị ugbu a na-abụghị linear nke na-arụ ọrụ bụ isi maka nchebe pụọ na oke ọkụ.Ya mere, anyị nwere ike ikwu na ngọngọ ZnO nwere resistivity na-abụghị liner.
Njirimara voltaji ugbu a nke Zno Block:
Ihe onyonyo dị n'okpuru na-egosi njirimara VI nke mmewere ZnO nke kewara na mpaghara atọ, bụrụ mpaghara dị ugbu a (A), mpaghara na-arụ ọrụ (B) na mpaghara dị ugbu a (C).