| Muhimmiya | Switchgear parts |
| Model NO. | RNV-A1-12D-1250A Aiki ɗaya na ƙarfin kusa da lafiya |
| Rated Voltage | 12kV |
| Raitidu kọ̀ọ̀kan | 1250A |
| Rated Frequency | 50Hz |
| Siri | RNV-A1 |
An RNV-A1-12D-1250A inflatable cabinet circuit breaker switch na a high-capacity control and protection device designed specifically for 12kV medium voltage distribution systems. The circuit breaker switch has the advantages of easy installation, minimal maintenance, long service life, small size, low price, safety and reliability. Main circuit 1250-20kA (4s), 25KA (3s), mechanical life 10000 times. This series of products will be shipped after passing the full inspection and comply with the relevant requirements of GB1984-89 and GB/T1984-2014 AC high-voltage circuit breakers.
Product Parameters
| Serial Number | Item | Unit | Parameter |
|---|---|---|---|
| 1 | Rated Frequency | Hz | 50 |
| 2 | Rated Current | A | 1250 |
| 3 | Rated Short-time Withstand Current | kA | 20/25 |
| 4 | Rated Peak Withstand Current | kA | 50 |
| 5 | Rated Short-circuit Duration | s | 4 |
| 6 | Rated Short-circuit Making Current | kA | 50 |
| 7 | Rated Operating Sequence | - | 0-0.3s-180s-co |
installation dimensions
Muhimmanci masu aikin suna cikin arziki biyu: tasirin kadan da yake, ingantaccen kula, tattalin hanyar, da yanayin da ake amfani da shi: ① Tasirin kadan da yake: Tsari mai yawa ta 1250A, tsari mai yawa na lokaci daidai ≥31.5kA/3s, wanda ya tabbatar da bukatar muhimmancin kadan da yake a wurin samun kadan; ② Ingantaccen kula da gudanar da jirgin kula: Kula mai gasar SF6 yana da tasirin kula na 2-3 marubuci da zafi, tare da godiya mai gudanar da jirgin kula da kuma babban gudanar da jirgin kula, wanda yana iya amfani a wurin da ke sauran zafi, abinci, da kuma abincin kali; ③ Hanyar mai yawa da ke dacewa ga ofishin gasar: Yawan ofishin yana da 1/3 na ofishin da ake bude da gasar, kuma asizza ta kasance tare da wurin ofishin da ake bude da gasar bayan gasar, ba a yi hadin kiyaye na tattalin ofishin; ④ Yanayin da ake amfani da shi mai yawa: Taimakawa aiki mai yawa (RS485/Modbus protocol) da kuma aiki mai yawa na zamani, tare da taimakawa aiki mai neman tsari na gasar SF6 da kuma taimakawa aiki mai neman matsayin abin da shi, wanda yana iya amfani a wurin samun kadan da ba ake da mutane; ⑤ Gaba-gaban aiki da yanayin da ake amfani da shi: Ofishin gasar mai yawa, yadda ake fito gasar ≤0.1%/shekarar, waɗannan aiki mai yawa na ofishin ≥10000 shekaru, wanda ya tabbatar da ceton gaba-gaban aiki da yanayin da ake amfani da shi a nan.
Yana wani gas-insulated circuit breaker na musamman da rated voltage ta 12kV da rated current ta 1250A, an samu shi don cabinets masu kwallon sako da zai iya kula da SF6 gas a matsayin insulation da arc-extinguishing medium. Wani modelin yana haɗa daga cikin uku abubuwa mafi muhimmanci: short-circuit fault interruption, load current breaking, da circuit isolation. Yana da kallamu mai sauƙi, ingantaccen sealing performance da kuma kyauwar tattalin arziki, yana da ma'ana a 12kV medium-voltage distribution network scenarios kamar ring main units, branch cabinets da switching stations, kuma yana cikin IEE-Business core protection switch component don urban power distribution da industrial park power supply.
