Yakakwira voltage vacuum wedunhu breaker mune yekusingaperi magineti kamuri

Tsanangudzo Pfupi

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Overview

ZN73-12 series indoor handcart-type high-voltage vacuum circuit breaker is indoor switchgear ine matatu-phase AC 50Hz uye yakayerwa voltage ye12kV.Inogona kushandiswa kutonga nekudzivirira kwemaindasitiri nemabhizinesi emigodhi, zvidyarwa zvemagetsi, zviteshi, uye zvivakwa zvemagetsi, uye inokodzera munzvimbo dzinowanzo shanda.Iyo inoshanda sisitimu inosanganiswa neiyo yedunhu breaker body, uye dhizaini inogona kushandiswa seyakagadziriswa yekumisikidza unit, kana inogona kuve yakashongedzerwa yakakosha propulsion mashini kuti igadzire handcart unit.Iyo huru yedunhu chikamu inogona kushandisa yakabatanidzwa yakasimba-yakavharwa danda kuona iyo miniaturization, yakakwirira kuvimbika uye kuchengetedza-isina yedunhu breaker.

Normal Kushandisa Conditions

◆ Ambient tembiricha: kwete yakakwirira kupfuura 40 ℃, kwete yakaderera pane -10 ℃ (kuchengetedza uye kutakura pa -30 ℃ zvinobvumirwa).
◆ Altitude: hapana kupfuura 1000m.(Kana hurefu huchida kuwedzerwa, iyo yakatemerwa insulation level ichawedzerwa zvinoenderana)
◆ Humidity humidity: chiyero chezuva nezuva hachipfuuri 95%, chiyero chezuva nezuva chemhepo yakasvibiswa yemhepo inonzi MPa, uye mwedzi wepamwedzi haisi kupfuura 1.8 × 10.
◆Kuwedzera kwekudengenyeka kwepasi: kwete kudarika 8.
◆ Nzvimbo isina moto, kuputika, kusvibiswa kwakakomba, kuora kwemakemikari uye kudengenyeka kwakanyanya.

Iyo Main Technical Parameters

Siriyero nhamba	Zita		Units	Data
1	Rated voltage		kV	12
2	Maximum kushanda voltage		kV	12
3	Rated current		A	630 1250	630 1250 1600 2000 2500 3150	1250 1600 2000 2500 3150 4000
4	Yakatemerwa pfupi-yedunhu kutyora ikozvino (yakatemerwa thermally yakagadzikana ikozvino - RMS)		kA	20/25	31.5	40
5	Yakatemerwa pfupi-circuit kugadzira ikozvino (peak value)		kA	50/63	80	100
6	Yakatemerwa peak inomira ikozvino (yakatemerwa dynamic yakagadzikana ikozvino - peak kukosha)		kA	50/63	80	100
7	4S yakayerwa pfupi-dunhu inomira ikozvino		kA	20/25	31.5	40
8	Rated insulation level	Kushanda kumirisana nemagetsi (asati uye mushure mekuyerwa kutyora) 1 min simba frequency inomira voltage	kv	Ground 42 (kutsemuka 48)
		Impulse inomira voltage (isati yatemerwa uye mushure mekutyoka) Yakatemerwa mheni mhepo inomira nevoltage peak kukosha		Ground 75 (kutsemuka 85)
9	Rated thermal stabilization time		s	4
10	Nominal Operation Sequence			Chibodzwa – 0.3S – Yakasanganiswa – 180S – Yakasanganiswa
11	Mechanical hupenyu		nguva	20000
12	Rated short-circuit breaking current breaking times		nguva	50
13	Operating mechanism rated closing voltage (DC)		v	AC .DC 110,220
14	Operating mechanism yakayerwa kuvhura voltage (DC)		v	AC .DC 110,220
15	Contact Spacing		mm	11±1
16	Overtravel (contact spring compression urefu)		mm	3.5±0.5
17	Nhatu-chikamu kuvhura uye kuvhara bounce nguva		ms	≤2
18	Bata yekuvhara bounce nguva		ms	≤2
19	Avhareji yekuvhura kumhanya		m/s	0.9~1.2
	Kumhanya kweavhareji yekuvhara		m/s	0.5~0.8
20	Nguva yekuvhura	pamagetsi epamusoro-soro ekushanda	s	≤0.05
21		panguva shoma yekushandisa voltage		≤0.08
22	Nguva yekuvhara		s	0.1
23	Main circuit resistance yechikamu chimwe nechimwe		υ Ω	630≤50 1250≤45
24	Iwo anochinja uye akamira mabatiro anobvumira iyo yakaunganidzwa gobvu yekupfeka		mm	3