Sehlopha sa rona ka koetliso ea litsebi. Tsebo ea litsebi e nang le boiphihlelo, kutloisiso e matla ea tšebeletso, ho fihlela litlhoko tsa litšebeletso tsa bareki bakeng sa Sesebelisoa sa ho qhaqha potoloho sa bokahohleng se bohlale: ho felehetsa potoloho, Re tšepa ka tieo hore re tla ema hammoho le bareki ba rona hohle lefatšeng.
Sehlopha sa rona ka koetliso ea litsebi. Tsebo ea litsebi e nang le boiphihlelo, kutloisiso e matla ea tšebeletso, ho fihlela litlhoko tsa litšebeletso tsa bareki bakeng sa, Re molekane oa hau ea tšepahalang mebarakeng ea machaba ka thepa ea boleng bo holimo. Melemo ea rona ke boqapi, ho tenyetseha le ts'epo tse hahiloeng lilemong tse mashome a mabeli tse fetileng. Re tsepamisa maikutlo ho faneng ka tšebeletso bakeng sa bareki ba rona e le karolo ea bohlokoa ho matlafatseng likamano tsa rona tsa nako e telele. Ho fumaneha ha rona khafetsa ha litharollo tsa maemo a holimo hammoho le tšebeletso ea rona e ntle ea pele ho thekiso le kamora thekiso ho netefatsa tlholisano e matla 'marakeng o ntseng o hola oa lefats'e.
| 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 |
Sehlopha sa rona ka koetliso ea litsebi. Tsebo ea litsebi e nang le boiphihlelo, kutloisiso e matla ea tšebeletso, ho fihlela litlhoko tsa litšebeletso tsa bareki bakeng sa maemo a moetsi. Motsotsoana feela…, Re tšepa ka tieo hore re tla ema hammoho le bareki ba rona hohle lefatšeng.
Tekanyetso ea moetsi, Re molekane oa hau ea tšepahalang mebarakeng ea machaba ka thepa ea boleng bo holimo. Melemo ea rona ke boqapi, ho tenyetseha le botšepehi tse hahiloeng lilemong tse mashome a mabeli tse fetileng. Re tsepamisa maikutlo ho faneng ka tšebeletso bakeng sa bareki ba rona e le karolo ea bohlokoa ho matlafatseng likamano tsa rona tsa nako e telele. Ho fumaneha ha rona khafetsa ha litharollo tsa maemo a holimo hammoho le tšebeletso ea rona e ntle ea pele ho thekiso le kamora thekiso ho netefatsa tlholisano e matla 'marakeng o ntseng o hola lefatšeng ka bophara.