General

YCM7YV yakatevedzana yemagetsi epurasitiki kesi circuit breaker (inozonzi: circuit breaker) inokodzera yakaderera-voltage magetsi magidhi ane AC 50Hz, yakatemerwa insulation voltage 800V, yakayerwa inoshanda voltage 400V uye pazasi, uye yakatemerwa kushanda ikozvino kusvika 800A. Iyo yedunhu inotyora ine overload-yakareba-inononoka inverse nguva muganhu, pfupi-yedunhu kupfupi-kunonoka inverse nguva yakatarwa, pfupi-yedunhu kupfupi-kunonoka-inononoka yakatarwa nguva yakatarwa, pfupi-yedunhu pakarepo uye pasi-voltage kuchengetedza mabasa. Mumamiriro ezvinhu akajairika, dunhu

breaker inoshandiswa kune isingawanzo chinjika yemaseketi uye isingawanzo kutanga ye

motors.Iyi nhevedzano yedunhu inotyora ine basa rekuzviparadzanisa nevamwe, uye chiratidzo chayo chinoenderana "   "

Chiyero: IEC60947-2.

Mamiriro ekushanda

1. Ambient air tembiricha

a) Iyo yepamusoro muganho kukosha haipfuure +40 ℃;

b) Iyo yakaderera muganho kukosha haipfuure -5 ℃;

c) Avhareji kukosha kwemaawa makumi maviri nemana haipfuure +35 ℃;

2. Altitude

Kukwirira kwenzvimbo yekuisa hakupfuuri 2000m.

3. Atmospheric mamiriro

Hunyoro hwemuchadenga haupfuuri 50% kana ambient

tembiricha yepamusoro ndeye +40 ° C; inogona kuva nehunyoro hwepamusoro pane yakaderera

tembiricha; apo avhareji yemwedzi nemwedzi zvishoma tembiricha yekunyorova

mwedzi i +25°C, avhareji yepamwedzi yepamusoro tembiricha yemwedzi ndeye +25°C. Hunyoro hunyoro ndeye 90%, tichifunga nezve condensation inoitika pane

chigadzirwa pamusoro nekuda kwekushanduka kwekushisa.

4. Dhigirii rekusvibisa

Kusvibisa dhigirii 3, zvishongedzo zvakaiswa mudhigirii redunhu zvine dhigirii rekusvibisa 2.

5. Kuiswa kwechikwata

Iyo huru yedunhu yedunhu inotyora ichave yekuisa chikamu III, uye yekubatsira yedunhu uye yekudzora maseketi ichave yekuisa chikamu II.

6. Kuisa mamiriro.

Madhigirii edunhu anofanirwa kuisirwa akatwasuka, kazhinji aine waya kumusoro, uye yekunze magineti panzvimbo yekuisa haifanirwe kudarika kashanu pane geomagnetic ndima mune chero nzira.