Kalkulator Voltase
Ing jaman biyèn, kadhangkala digunakaké kanggo nggambarake jarak, jarak, lan wektu.
Hasil dioptimalake nalika sampeyan ngetik.
Ngendi kalkulator iki
Every conductor has some resistance, so a little voltage is always lost pushing current along a cable — that loss is the voltage drop. For a single-phase run the drop is Vdrop = 2 × ρ × L × I / A, where the factor 2 accounts for the current travelling out to the load and back along the return conductor; a three-phase run uses √3 instead of 2. Here ρ is the resistivity of the metal (copper ≈ 0.0175 Ω·mm²/m, aluminium ≈ 0.0282 Ω·mm²/m), L is the one-way length in metres, I the load current in amps and A the conductor cross-section in mm². This calculator also reports the resulting percentage drop, the voltage actually delivered at the load and the power wasted as heat in the cable (Ploss = Vdrop × I).
As a worked example, take 20 A flowing 50 m one-way through a 10 mm² copper cable on a 230 V single-phase supply: Vdrop = 2 × 0.0175 × 50 × 20 / 10 = 3.5 V, about 1.5%, so the load sees roughly 226.5 V and the cable wastes 3.5 × 20 = 70 W. Switch the conductor to aluminium and the same run drops about 5.6 V, because aluminium’s resistivity is around 60% higher. You can either type a custom cross-section or pick a standard AWG gauge from the advanced list, which overrides the area field with the gauge’s real mm² value.
Voltage drop matters because motors, lights and electronics misbehave when they are starved of voltage — dim lamps, sluggish motors and nuisance tripping all trace back to oversized drops on long runs. Electricians size cables so total drop stays within about 3% for branch circuits and 5% end-to-end; the result here flags whether your run meets the limit you set, and the fix for a failing run is a larger conductor, a shorter route or, occasionally, a higher supply voltage.
Takon kang asring diajukake
Apa tegesé gawéan iku?
Ing basa Jawa, tembung iki bisa dijupuk saka tembung 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 77, 78, 79, 80, 80, 81, 82, 83, 84, 85, 86, 87, 89, 90, 91, 92, 93, 95, 96, 97, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 110, 111, 112, 112, 113, 114, 115, 116, 117, 118, 119, 120, 120, 121, 122, 122, 1
Apa kang dadi sebabé?
A aturan umum saka tangan iku kanggo njaga total drop ing ngisor 3% kanggo sirkuit cabang lan 5% ing umum. Konductors luwih gedhé (aréa luwih gedhé) nyuda drop.
Asam lan basa - apa iku penting?
Ya. Aluminium punika gadhah resistivitas ingkang langkung dhuwur saking tembaga, saéngga aluminium ingkang ukuranipun sami saged ngrembaka kanthi proporsional.
Mengapa formula iki nganggo panjang kang duwé dua kali?
Ing wangun iki, wangun-wangun iki bisa digawé kanthi cara dicampur lan dicampur-campur, lan bisa digawé kanthi cara dicampur-campur, lan bisa digawé kanthi cara dicampur-campur.
Apa kang bisa ndadèkaké gawéan iku luwih apik?
Nggunakaké konduktor kang luwih gedhé (nggandaké bagean transversal kira-kira setengah saka drop), ngurangi run, ngpisahake beban liwat kabel paralel, utawa nambah voltase suplai. Tembaga kang luwih gedhé iku cara sing biasa amarga drop proporsional ing area.
Apa daya kang ilang ing kabel?
The wasted power is the drop times the current, Ploss = Vdrop × I. A 3.5 V drop at 20 A wastes 70 W as heat in the wire — energy you pay for but never use, which is why long high-current runs justify thicker, lower-loss cable.
Apa aku bisa nggunakake AWG gauges tinimbang area mm²?
Ya. Pilih gauge ing dhaptar AWG maju lan iku bakal nglapuraké lapangan wewengkon karo gunggungé cross-section ing mm² (kayata 10 AWG ≈ 5.26 mm²), supaya sampeyan bisa kerja ing sistem gauge sing digunakake installer Amérika Lor.
API — gunakake kalkulator iki saka kode
Panggenan kalkulator iki minangka titik pungkasan JSON gratis - ora ana kunci sing dibutuhaké. Kirimi nilai medan ing ngisor iki minangka parameter pitakonan utawa JSON. Anything you omit uses the same default this page is pre-filled with; an unknown parameter is a 400, never a silent zero. Waca dokumen API lengkap →
Titik pungkasan
GET https://calculator.free/api/v1/voltage-drop/curl
curl "https://calculator.free/api/v1/voltage-drop/?material=copper&length=50¤t=20&area=10&source=230"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/voltage-drop/?" + new URLSearchParams({
"material": "copper",
"length": "50",
"current": "20",
"area": "10",
"source": "230"
}));
const data = await r.json();
console.log(data.results);Kajaba iku, ana uga sing ora bisa gawé gawéan, kaya ta dokter, insinyur, lan liya-liyané.