Cov Ntsiab Cai Rau Kev Xaiv Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob 1

1. Xaiv cov thermal relays
Ua ntej, tus nqi tripping ntawm thermal relay yog 1.05 In rau tsis ua hauj lwm tam sim no thiab 1.2 Nyob rau hauv kev khiav hauj lwm tam sim no. Nws yog tsim raws li cov yam ntxwv ntawm lub cev muaj zog. Yog li ntawd, thaum xaiv lub thermal relay, qhov kev hloov kho tam sim no ntawm thermal relay yuav tsum muaj peev xwm ua tau raws li qhov ntsuas tam sim no ntawm lub cev muaj zog.

Qhov thib ob, theem tripping ntawm thermal relay yuav tsum raug xaiv raws li seb lub cev muaj zog yog lub teeb-loaded lossis hnyav-loaded. Feem ntau, nws tau muab faib ua 10A 10 20 30 qib, sib haum rau lub sij hawm tripping ntawm lub thermal relay nyob rau hauv 7.2 Nyob rau hauv (nyob rau hauv lub ambient kub ntawm 20 degrees). Piv txwv li, rau cov dej twj tso kua mis loads, qib 10A yog siv rau lub teeb-load pib. Rau kiv cua loads, qib 20 yog siv rau hnyav-load pib.

2. Yas rooj plaub Circuit Court breakers - kev xaiv dav dav rau Circuit Court breakers

(1) Qhov ntsuas hluav taws xob ua haujlwm ntawm qhov hluav taws xob hluav taws xob ≥ qhov ntsuas hluav taws xob ntawm kab.

(2) Qhov ntsuas tam sim no ntawm Circuit Court breaker ≥ lub load tam sim no ntawm kab.

(3) Qhov ntsuas luv luv-circuit breaking peev xwm ntawm Circuit Court breaker ≥ qhov siab tshaj plaws luv luv tam sim no uas yuav tshwm sim hauv kab (xws li tus nqi zoo).

(4) Ib-theem luv-circuit tam sim no kawg ntawm kab ≥ 1.25 npaug ntawm qhov teeb tsa tam sim no ntawm Circuit Court breaker instantaneous tso.

(5) Qhov ntsuas hluav taws xob ntawm qhov hluav taws xob hluav taws xob qhov hluav taws xob tso tawm=qhov ntsuas hluav taws xob ntawm kab.

(6) Qhov ntsuas hluav taws xob ntawm qhov hluav taws xob hluav taws xob hluav taws xob shunt tso tawm=tswj fais fab mov voltage.

(7) Qhov ntsuas hluav taws xob ua haujlwm ntawm lub tshuab xa hluav taws xob hluav taws xob=tswj fais fab mov voltage.

(8) Tshawb xyuas cov kev taw qhia ntawm cov kab hluav taws xob tso cai los ntawm lub tshuab hluav taws xob. Qee cov qauv ntawm Circuit Court breakers tsuas yog tso cai rau sab saum toj nkag, thaum qee cov qauv tso cai rau sab saum toj lossis hauv qab nkag.