Summary
Zvigadzirwa zvedu zvitsva, NVS1-12 dzakatevedzana indoor high-voltage vacuum circuit breakers dzinoshandiswa kuchinjika mu12kV simba system, seyekudzora nekudzivirira chikamu chemidziyo yemagetsi mumaindasitiri nemaindasitiri emigodhi, zvidyarwa zvemagetsi uye zviteshi. Nekuda kwemabhenefiti akakosha eiyo vacuum circuit breaker, inonyanya kukodzera mashandiro enguva dzose anoda akatemerwa kushanda ikozvino, kana nzvimbo uko pfupi-sekiti ikozvino inoputswa kakawanda. Iyo yedunhu inotyora inotora iyo yakasanganiswa dhizaini yekushanda meshini uye wedunhu breaker body. Izvo zviviri ndeyekumberi uye kumashure chimiro, iyo ine yakavimbika interlocking basa. Iyo yedunhu breaker inogona kushandiswa seyakagadziriswa yekuisa unit. Iyo inogona zvakare kuve yakashongedzerwa nechassis rori muchikamu chengoro yemaoko.
Product standards
GB/T1984-2014 High voltage AC Circuit Breaker
JB/T3855-2008 3.6-40.5kV indoor AC High voltage vacuum circuit breaker
DL/T403-2000 12kV-40.5kV high voltage vacuum circuit breaker inoraira tekinoroji mamiriro
IEC62271-100: 2008 Yakakwira Voltage Switchgear uye Controlgear Chikamu 100: AC Circuit-breakers
Environmental Conditions
Ambient tembiricha: -15 C ~+40C
O Ambient humidity: Zuva nezuva avhareji hunyoro hunyoro
Daily average vapor pressure
O Altitude ≤ 1000m;
O Kudengenyeka kwepasi
O Kuiswa nzvimbo: Nzvimbo yacho haifanire kunge isina njodzi yekudonha kwemvura, kusvibiswa kwakakomba, kemikari kemikari uye kuzununguka kwakanaka.
Main Technical Parameters
| Item | Unit | Data |
| Rated voltage | kV | 12 |
| Rated frequency | Hz | 50 |
| Yakatemerwa 1 min simba frequency inomira voltage (chikamu kuenda kuchikamu, pasi, kuputsika) | kV | 42 |
| Yakatemerwa mheni yekumanikidza inomira voltage (chikamu kuenda kuchikamu, pasi, kutsemuka) | kV | 75 |
| Rated oparesheni kutevedzana | Ot-CHII-t'-CHII |
| Item | Unit | NVS1-12 | ||||||||||||
| Rated current | A | 630 | 1250 | 1250 | 1600 | 2000 | 2500 | 1250 | 1600 | 2000 | 2500 | 3150 | 3150 | 4000 |
| Rated short circuit breaking current | kA | 20/25 | 31.5 | 40 | 50 | |||||||||
| Yakatemerwa pfupi dunhu kugadzira ikozvino (peak) | kA | 50/63 | 80 | 100 | 125 | |||||||||
| Yakatemerwa nguva yedunhu pfupi | s | 4 | 4 | 4 | 4 | |||||||||
| Yakatemerwa nguva pfupi yekutyora kwedunhu | nguva | 50 | 50 | 30 | 20 | |||||||||
| Mechanical hupenyu | nguva | 20000 | 20000 | 20000 | 10000 | |||||||||
Cherechedza:
20/25/31.5kA, t=0.3s t'=180s
40/50kA, t=180s, t'=180s
4000A VCB inoda kumanikidzwa kutonhora kwemhepo
| Item | Unit | Data | ||||
| Clearance pakati akavhurika contacts | mm | 9±1 | ||||
| Overtravel | 3.5±0.5 | |||||
| Chikamu chetatu kuvhura uye kuvhara asynchronism | ms | ≤2 | ||||
| Bata yekuvhara bounce nguva | ms | ≤2 (50kA) | ||||
| Bata pressure yekuvhara ma contacts | N | 20kA | 25 kA | 31.5 kA | 40 kA | 50 kA |
| 2000±200 | 2400±200 | 3100±200 | 4250±250 | 5500±300 | ||
| Avhareji yekuvhura kumhanya | m/s | 0.9~1.3 | ||||
| Kumhanya kweavhareji yekuvhara | 0.4~0.8 | |||||
General Structure Drawing uye Kuisa Saizi (chikamu: mm)
