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ZN23-40.5 MV vacuum circuit breaker is indoor MV kugovera mudziyo wechitatu-phase AC 50Hz, yakayerwa voltage 40.5kV, inogona kuenderana neJYN35/GBC-35 type switchcabinet. Inokodzera kudzora nekudzivirira mumagetsi plant, substation uye simba dstribution system, kunyanya inokodzera nzvimbo dzekugara dzekushanda. Iyo vacuum circuit breaker imhando yengoro yemaoko, ine chimiro chinonzwisisika, kugadzirisa kuri nyore, kwakachengeteka uye kushandiswa kwakavimbika.
Taura nesu
● ZN23-40.5 MV vacuum circuit breaker is indoor MV distribution device ye-phase-phase AC 50Hz, rated voltage 40.5kV, inogona kuenzaniswa neJYN35 / GBC-35 type switch cabinet. Inokodzera kudzora nekudzivirira musimba rekudyara, substation uye simba rekugovera sisitimu, kunyanya yakakodzera nzvimbo dzekugara dzekushanda. Iyo vacuum circuit breaker imhando yengoro yemaoko, ine dhizaini inonzwisisika, kugadzirisa kuri nyore, yakachengeteka uye yakavimbika kushandiswa.
1. Kupisa kwezvakatipoteredza: muganhu wepamusoro +40 ℃, muganho wakaderera -15 ℃ (inotonhora nzvimbo -25 ℃);
2. Altitude: kwete kupfuura 2000m;
3. Hunyoro hunyoro: kukosha kwezuva nezuva hakusi kukuru kudarika 95%, mwedzi wega wega hausi mukuru kudarika 90%;
4. Saturated steam pressure: zuva rega rega kukosha kwehuwandu haisi yakakwirira kudarika 2.2 × 10 -3 Mpa,avhareji yepamwedzi haisi yakakwirira kudarika 1.8 × 10-3 Mpa;
5. Kudengenyeka kwepasi hakupfuuri madhigirii masere;
6. Hapana moto, kuputika, kusvibiswa, kemikari corrosion uye nzvimbo yakaoma yekudengenyeka.
1. Yakazara chimiro chedunhu breaker imhando yengoro yemaoko, shandisa CT19 kana CD10 michina, inogona kukamurwa kuita JYN1 uye GBC marudzi maviri echimiro.
2. Muviri wedunhu unopwanya unoumbwa nefuremu, insulator, vacuum interrupter, spindle uye kufamba uye static bracket. Pazasi pefuremu ine mavhiri mana, yekufambisa yedunhu breaker, etc. rutivi rworudyi rwefuremu ine 6 insulator serutsigiro, yakagadziriswa inofamba uye static kutsigira kushandiswa, vacuum interrupter yakaiswa pakati pesimba, static rutsigiro, iyo yedunhu inotyora ine hunhu hwevhoriyamu diki, chimiro chakareruka, hupenyu hurefu hwebasa, kugadzirisa kuri nyore, hapana njodzi yekuputika, hapana kusvibiswa nezvimwe.
Iyo yedunhu inotyora yakashongedzerwa nepakati chisimbiso longitudinal magineti vacuum interrupter, kana iyo inoshanduka, static kubata kwevacuum interrupter inopatsanurwa yakachajiswa, gap rekusangana rinoburitsa vacuum arc uye kudzima kana ikozvino pamusoro zero. Nekuda kwechimiro chakasarudzika chekusangana, iyo gap yekubata inoburitsa yakakodzera longitudinal magineti panguva yekubata arc, iyo arc yakafanana yakagovaniswa pamusoro peiyo yekubata, ichichengetedza yakaderera arc voltage, kuitira kuti ishoma corrosion yemagetsi kumhanya uye arc kamuri ine yakakwirira. arc media kudzoreredza simba, kunatsiridza dunhu rinotyora kutyora-pfupi-rekiti ikozvino kugona uye hupenyu hwemagetsi.
Item | Unit | Parameter | |
Parameters yemagetsi, ikozvino, hupenyu | |||
Rated voltage | kV | 40.5 | |
Yakatemerwa nguva pfupi yemagetsi frequency inomira voltage (1min) | kV | 95 | |
Yakatemerwa mheni simba inomira voltage (peak) | kV | 185 | |
Rated frequency | Hz | 50 | |
Rated current | A | 1250 1600 2000 | |
Rated short-circuit breaking current | kA | 25 | 31.5 |
Yakatemerwa nguva pfupi inomira ikozvino (RMS) | kA | 25 | 31.5 |
Rated peak inomira ikozvino | kA | 63 | 80 |
Yakatemerwa nguva yekuvhara-pfupi yekuvhara ikozvino | kA | 63 | 80 |
Yakayerwa imwe / kumashure-kumashure capacitor kubhengi kutyora ikozvino | A | 600/400 | |
Yakatemerwa nguva yenguva pfupi yedunhu | S | 4 | |
Yakatemerwa nguva pfupi-yedunhu ikozvino yekutyora nguva | Nguva | 20 | |
Rated kushanda kutevedzana | O-0.3s-CO-180s-CO | ||
Iyo huru galvanic denderedzwa kuramba | μΩ | ≤65 | |
Rated operation voltage | ≌ 220/110 | ||
Mechanical hupenyu | Nguva | ≥10000 | |
Mechanical property parameters | |||
Open clearance pakati pevanobatika | mm | 22±2 | |
Overtravel | mm | 6±1 | |
Bata yekuvhara bounce nguva | ms | ≤3 | |
Nhatu-chikamu, kushandura synchronism | ms | ≤2 | |
Avhareji yekuvhura kumhanya | m/s | 1.7±0.2 | |
Kumhanya kweavhareji yekuvhara | m/s | 0.75±0.2 | |
Nguva yekuvhura (yakatemerwa voltage) | ms | ≤90 | |
Nguva yekuvhara (yakatemerwa voltage) | ms | ≤60 | |
Inobvumirwa kupfeka ukobvu kune inoshanduka uye static kubata | mm | 3 |