Kamehla re lula re u fa tšebeletso e hlokolosi ka ho fetisisa ho bareki, le mefuta e mengata ea meralo le mekhoa e nang le thepa e ntle ka ho fetisisa. Liteko tsena li kenyelletsa ho fumaneha ha meralo e ikhethileng ka lebelo le thomello bakeng sa Bafani ba Chaena Cw1 2500A 4p Drawout Low Voltage Intelligent Circuit Breaker e nang le 65ka Break, Thabo ea bareki ke sepheo sa rona se seholo. Re u amohela hore u hahe kamano ea khoebo le rona. Bakeng sa tlhaiso-leseling e batsi, ha ua lokela ho emela ho ikopanya le rona.
Kamehla re lula re u fa tšebeletso e hlokolosi ka ho fetisisa ho bareki, le mefuta e mengata ea meralo le mekhoa e nang le thepa e ntle ka ho fetisisa. Liteko tsena li kenyelletsa ho fumaneha ha meralo e ikhethileng ka potlako le thomello bakeng saMoqhekelli oa Potoloho ea Moea oa China le Moqhekelli oa Potoloho ea Bohlale, Feme ea rona e na le setsi se felletseng sa limithara tse lisekoere tse 10000, e leng se re etsang hore re khone ho khotsofatsa tlhahiso le thekiso ea boholo ba thepa ea likarolo tsa likoloi. Molemo oa rona ke sehlopha se felletseng, boleng bo holimo le theko ea tlholisano! Ho latela seo, lihlahisoa le litharollo tsa rona li hapa tlhompho e kholo lapeng le kantle ho naha.
| Tafole ea hajoale e lekantsoe 1 | ||||||||
| E lekantsoe foreimi ea hona joale Inm A | Tekanyo ea hona joale ea ln A | |||||||
| 2000 | (400)630,800,1000,1250,1600,2000 | |||||||
| 3200 | 2000,2500,2900,3200 | |||||||
| 4000 | 3200,3600,4000 | |||||||
| 6300 | 4000,5000,6300 | |||||||
Bokgoni ba ho roba potoloho e kgutshwane bo lekantsweng le ho mamella nako e kgutshwane ha di-breaker, sebaka sa ho roba ke "lefela" (kaha bokantle ba breaker ha bo na arcing.) Tafole ya 2
| E lekantsoe foreimi ea hona joale Inm A | 2000 | 3200 | 4000 | 6300 | ||||
| Bokhoni ba ho roba potoloho e kgutshwane bo lekantsweng lcu(kA)O-CO | 400V | 80 | 80 | 100 | 120 | |||
| 690V | 50 | 50 | 75 | 85 | ||||
| E lekantsoe bokhoni ba ho roba potoloho e khuts'oane nx lcu(KA)/COS∅ | 400V | 176/0.2 | 176/0.2 | 220/0.2 | 264/0.2 | |||
| 690V | 105/0.25 | 105/0.25 | 165/0.2 | 187/0.2 | ||||
| E lekantsoe ka nako e khuts'oane ea ho mamella lcw lcs(kA)O-CO-CO | 400V | 50 | 50 | 80 | 100 | |||
| 690V | 40 | 40 | 65 | 75 | ||||
| E lekantsoe ka nako e khuts'oane ea ho mamella lcw (kA)———”+0.4s,O-CO | 400V | 50 | 50 | 65/80(MCR) | 85/100(MCR) | |||
| 690V | 40 | 40 | 50/65(MCR) | 65/75(MCR) | ||||
| Tlhokomeliso: Terata ea ho kenya le ea ho ntša lia tšoana bakeng sa ho robeha ha bokhoni. | ||||||||
Matla a ho timetsa a phahameng ka ho fetisisa ke 360W bakeng sa li-breaker, 'me mochesong o fapaneng, le hona joale e tšoarellang e lekantsoe e tla fetoha. Tafole ea 3
| Sebaka se potolohileng mocheso℃ | Lekanyeditswe hona jwale | |||||||
| 400A | 630A | 800A | 1000A | 1250A | 1600A | 2000A | ||
| 40 | 400A | 630A | 800A | 1000A | 1250A | 1600A | 2000A | |
| 50 | 400A | 630A | 800A | 1000A | 1250A | 1550A | 1900A | |
| 60 | 400A | 630A | 800A | 1000A | 1250A | 1550A | 1800A | |
Tšireletso ea molaoli ea bohlale holim'a hona joale le mesebetsi. Sebaka le phoso. Tafole ea 4
| Tieho e telele | Tieho e khutšoanyane | Hang-hang | Phoso e senyehileng | |||||
| lr1 | lr2 | Phoso | lr3 | Phoso | lr4 | Phoso | ||
| (0.4-1)Ka hare | (0.4-15)Ka hare | ± 10% | ln-50kA(Inm=2000A) ln-75kA(Inm=3200A) | ± 15% | lnm=2000~3200A (0.2-0.8)Ka hare (1200A,160A) | ± 10% | ||
| Tlhokomeliso: Haeba e na le tšireletso ea mehato e meraro ka nako e le 'ngoe, sebaka se ke ke sa tšela. | ||||||||
Tieho e telele hodima tshebetso ya hajwale ya nako e fapaneng I2TL, =(1.51lr1)2tL, mme nako ya yona ya ketso(1.02-2.0) Ir1, e na le phoso ya nako ke ±15%. Tafole ya 5
| 1.05Ir1 | 1.3Ir1 | 1.5Ir1 Nako ea ho beha S | 15 | 30 | 60 | 120 | 240 | 480 |
| >2hno ketso | Ketso ea lihora tse 1 | Nako ea ho Beha ea 2.0Ir S | 8.4 | 16.9 | 33.7 | 67.5 | 135 | 270 |
Kamehla re lula re u fa tšebeletso e hlokolosi ka ho fetisisa ho bareki, le mefuta e mengata ea meralo le mekhoa e nang le thepa e ntle ka ho fetisisa. Liteko tsena li kenyelletsa ho fumaneha ha meralo e ikhethileng ka lebelo le thomello bakeng sa Bafani ba Chaena Cw1 2500A 4p Drawout Low Voltage Intelligent Circuit Breaker e nang le 65ka Break, Thabo ea bareki ke sepheo sa rona se seholo. Re u amohela hore u hahe kamano ea khoebo le rona. Bakeng sa tlhaiso-leseling e batsi, ha ua lokela ho emela ho ikopanya le rona.
Bafepedi ba Chaena,Moqhekelli oa Potoloho ea Moea oa China le Moqhekelli oa Potoloho ea Bohlale, Feme ea rona e na le setsi se felletseng sa limithara tse lisekoere tse 3000, e leng se re etsang hore re khone ho khotsofatsa tlhahiso le thekiso ea boholo ba thepa ea likarolo tsa likoloi. Molemo oa rona ke sehlopha se felletseng, boleng bo holimo le theko ea tlholisano! Ho latela seo, lihlahisoa le litharollo tsa rona li hapa tlhompho e kholo lapeng le kantle ho naha.