Me pēhea te whiriwhiri tika i tētahi Kaitiaki Pupuhi (SPD).

E hia ngā wāhanga ka taea te wehewehe i ngā parenga ngaru?

Momo 1 (Momo Whakawhiti Ngaohiko)

• Mahi:
  E whakamahia ana hei tuku i ngā iahiko nui (ngaru 10/350μs) mai i ngā pānga uira tika, i ngā pānga uira rānei.
  He mea whakamahi noa ki te tomokanga matua o te tohatoha hiko o ngā whare (rohe whakawhiti mai i LPZ0 ki LPZ1).
• Te Kaupapa Mahi:

Te ātete teitei i te āhua noa: 

Ina kore he ngaru, ka noho tonu te SPD i roto i te āhua ātete-teitei, kāore e pā ki te ara iahiko.
He iti te ātete i te wā e whakaoho ana:

Ina nui ake te ngaohiko ngaru i te paepae (hei tauira, 4kV), ka pakaru te ngongo tuku hau ā-roto (GDT) te āputa mura rānei, ka hanga he ara ārai-iti hei tuku tonu i ngā iahiko o ngā tekau kA.
Te tinei i te pewa i muri mai: I muri i te memeha o te ngaru, ka hoki te GDT ki tōna āhua ātete-teitei mā roto i tōna whakaoranga-ake.

• Ngā Wāhanga Matua：

Ngongo Tukunga Hau (GDT):Ka arahina mā te whakaionitanga o te hau kore mahi.
Āputa Hiko:Ka tukuna mā te pakaru o te hau, me te kaha whakahaere iahiko kaha (ka neke atu i te 100kA).

Momo 2 (Momo Whakawhāiti Ngaohiko)

• Mahi:

Ka ārai i te uira me ngā ngaohiko whakawhiti (ahua ngaru 8/20μs).

E whakamahia ana i roto i ngā panera tohatoha.

• Te Kaupapa Mahi:

Āhuatanga ārai kore-raina: 

Ina piki te ngaohiko ngaru, ka tino heke te aukati varistor ā-roto (MOV), ka piri te ngaohiko ki te taumata haumaru (hei tauira, Ki runga ake i te 1.5kV).

Te tukunga tonu: 

Ka taea e te MOV te tuku i ngā iahiko ngawari (20–40kA) i ngā wā maha, engari ka taea e ngā iahiko teitei te whakaheke i tana mahi.

• Wāhanga Matua:

Pūrere Whakarewa Waikura (MOV):He mea tito mai i ngā matūriki konutea waikura (ZnO), he taputapu haurua-ārai-ngaohiko.

Momo 3 (Parenga Whakakotahi, Parenga Pai rānei)

• Mahi

Whakautu tere:E whakamahi ana i ngā diode TVS, i ngā huinga MOV+TVS rānei, me te wā urupare ≤1ns.

He iti rawa te ngaohiko whakapūmau (hei tauira, Ki runga ake i te 0.8kV), e whakarite ana i te haumaru o ngā taputapu tairongo.

Wāhanga matua:

Pūhiko Whakaiti Ngaohiko Whakawhiti (TVS):Ka whakamahi i te pānga horonga o te hononga PN mō te urupare tino tere engari he iti noa te kaha whakahaere iahiko (

He mea nui te whiriwhiri i te taputapu tiaki ngaru tika (SPD). Me pēhea te whiriwhiri i tētahi mō ngā āhuatanga rerekē?

1.Tautuhia ngā Whakaritenga Tiaki

1.1 Tāutuhia ngā Pūtake Pupuhi

Te pānga tika o te uira (hei tauira, te pānga o te whare):  Me whai Momo 1 SPD (ngaru 10/350μs).

Ngā ngaohiko nui rawa atu i puta mai i te uira, i te whakawhiti rānei (hei tauira, ngā rerekētanga o te whatunga, te tīmatanga/te whakaweto o ngā taputapu): Me whai Momo 2, Momo 3 rānei te SPD (āhua ngaru 8/20μs).

1.2 Te Whakatau i ngā Rohe Tiaki (LPZ)

LPZ0 → Rohe LPZ1 (hei tauira, te urunga hiko matua):

 Momo 1, Momo 1+2 rānei te SPD ranu.

LPZ1 → Rohe LPZ2 (hei tauira, te papa tohatoha papa):

Momo 2 SPD.

LPZ2 → Rohe LPZ3 (hei tauira, te pito mua o te taputapu):

Momo 3, SPD tika rānei.

2.Kōwhiringa Tawhā Matua

2.1Ngaohiko Whakahaere Tonu Mōrahi (Uc)

2.1.1 Me teitei ake i te ngaohiko whakatauranga o te pūnaha (hei tauira, mō te pūnaha 385V, tīpakohia te Uc ≥ 385V).

2.2.2 Whakaarohia ngā rerekētanga o te whatunga (±10~20%).

2.2Taumata Parenga Ngaohiko (Ki Runga)

2.2.1 He pai ake te tiakitanga mā te Whakararo ki Runga engari me ōrite te ngaohiko ātete o te taputapu kua tiakina.

2.2.2 Ture whānui: Ki runga ake i te 80% o te ngaohiko ātete o te taputapu (hei tauira, mēnā ka taea e te taputapu te whakahaere i te 2.5kV, whiriwhiria te Ki runga ake i te 2.0kV).

2.3 Te Kaha Whakahaere o nāianei (In / Imax)

• Momo 1: I roto i te ≥ 12.5kA (ahua ngaru 10/350μs).
• Momo 2: Paewhiri tohatoha matua: Imax ≥ 40kA (8/20μs).

Paewhiri tohatoha-iti: Imax ≥ 20kA (8/20μs).

• Momo 3: I roto i te ≥ 5kA (ngaru whakakotahi).

2.4 Wā Whakautu

Ngā SPD Paerewa: ≤25ns.

Mō ngā taputapu tino tika, whiriwhiria ngā kōwhiringa tere ake (hei tauira, ngā diode TVS, ≤1ns).

3.Kōwhiringa mā te horopaki tono

3.1Ngā Pūnaha Tuku Hiko

3.1.1 Paewhiri Tohatoha Matua: Momo 1+2 ranu SPD (hei tauira, Imax = 100kA, Runga ≤ 2.5kV).

3.1.2 Paewhiri Tohatoha-Iti: Momo 2 SPD (hei tauira, Imax = 40kA, Runga ≤ 1.8kV).

3.1.3 Mutunga Taputapu: Momo 3, SPD rānei e mau ana ki te kōtui (hei tauira, Runga ≤ 1.2kV).

3.2 Ngā Raina Tohu/Whakawhitiwhiti Kōrero

3.2.1 Whakamahia ngā SPD tohu motuhake, e ōrite ana ki ngā momo atanga (hei tauira, RJ45, RS485).

Kia aro ki te tere tuku me te ngaronga whakaurunga (mēnā kei te whakamahi koe i te whatunga Gigabit, whiriwhiria he tauira hototahi ki te auau teitei)

3.3 Ngā Pūnaha PV/DC

Tīpakohia ngā SPD DC me te Uc ≥ 1.2 × te ngaohiko mōrahi pūnaha.