| Muhimmiya | Switchgear parts |
| Model NO. | 40.5kV/1250A-31.5kA TURUWA GABAS GABAS GIS VCB (Vacuum circuit breaker) |
| Rated Voltage | 40.5kV |
| Raitidu kọ̀ọ̀kan | 1250A |
| Rated short-circuit breaking current | 31.5kA |
| Siri | RNGIS-40.5 |
Waɗannan VCB na 40.5kV yana da fitaccen cikin abubuwan da ake gina masu sayarwa (GIS) a kan wani wurare, tana da aiki a ƙarin hanyoyi (cutting, isolating, and grounding) don bayyana tsari ga takamakawa a ƙarin hanyo. Tana ba da adadin karamin rai 1250A da kuma babban karamin cutting 31.5kA, wanda ya ba da shirin da ba da dogon aiki a kan duk abubuwan da ke faruwa a cikin grids masu ƙarin hanyo.
Daga ɗaukar addini mai sarrafa, tana da muhimmanci a kan tasiri, yadda ake baka, zama da kyau, lokaci mai yawa, ƙarin cin, ba da aiki a kan yanayi, kuma ana iya amfani da ita a fannan kuma asalin mutanen jama'a, da kuma tattalin arzikin ruwa. Yana da muhimmanci a kan mafi girman birnin da ake biyo, switch stations, masana'antu da nufin haɗuwar tsohon, airports, railways, highways, subways, commercial areas, residential areas, wind power, optoelectronics, da sauransu.
Na'udu da tattara a yi amfani da shi
| Item | Parameter |
|---|---|
| Site na ike nke Install | Nke Cabinet |
| Temperature nke Environs (°C) | -45~+140 |
| Altitude (m) | ≤2000 |
| Humidity nke Air (%) | Average nke oge nke isi not more than 95%, average nke ose nke isi not more than 90% |
| Seismic Intensity | ≤8 Degree |
Muhimmiyar Siffofiyoyi
| Serial Number | Main Equipment and Technical Performance | Parameter and Requirement | |
|---|---|---|---|
| \multirow{22}{*}{1} | Circuit Breaker | 1 Set | |
| • Type | Fixed Vacuum Circuit Breaker | ||
| • Rated Voltage | 40.5kV | ||
| • Rated Current | 1250A | ||
| • Rated Frequency | 50Hz | ||
| • Lightning Impulse Withstand Voltage Peak (Break/Phase-to-Ground) | ≥215kV/185kV | ||
| • 1min Power Frequency Withstand Voltage (Break/Phase-to-Ground) | ≥118kV/95kV | ||
| • Rated Short-time Power Frequency Withstand Voltage of Auxiliary Circuit | 2kV, 50HZ 1min | ||
| • Rated Short-time Withstand Current | 20kA | ||
| • Rated Peak Withstand Current | 50kA | ||
| • Rated Short-circuit Breaking Current | 20kA | ||
| • Rated Short-circuit Making Current | 50kA | ||
| • Rated Short-circuit Duration | ≥4s | ||
| \multirow{4}{*}{• Operating Mechanism} | Type | Spring Operating Mechanism | |
| Operating Voltage | DC 24V/48V/110V/220V | ||
| Auxiliary Contacts | 6 Normally Open, 6 Normally Closed | ||
| Rated Operating Sequence | O-0.3s-CO-180s-CO | ||
| \multirow{2}{*}{• Mechanical Life} | Mechanical Life | 10000 Times | |
| • Electrical Life | Electrical Life | 10000 Times | |
| \multirow{4}{*}{• Mechanical Characteristics} | Closing and Opening Time | 35-70ms | |
| Closing and Opening Speed | 1.2-1.9mm/s | ||
| Contact Opening Distance | 18-22mm | ||
| Three-phase Closing and Opening Asynchronism | ≤3ms | ||
| 2 | Three-position Isolator | 1 Set | |
| • Type | Manual/Electric | ||
| \multirow{2}{*}{3} | • Auxiliary Contacts | 3 Normally Open, 3 Normally Closed | |
| • Mechanical Life | 2000 Times | ||
| • Electrical Life of Earthing Switch | 2000 Times | ||
| 4 | Cabinet Size | Not Larger than 600X1700 (Width X Depth) |
Nau'o'in kwallon aiki
| Nọmba Nsogbu | Ọrụ Nke Nchekwa | Ihe Nritee Site |
|---|---|---|
| \multirow{4}{*}{1} | \multirow{4}{*}{Nchekwa Ukwu Nkọwa Ihe Nritee} | Nọmba Agbanyeghị Ekwu (Kpọmkwụ Onye Na-akpali Ya) |
| Ukwu Nchekwa 18-22mm | ||
| Nchekwa Isi 3±1mm | ||
| Isi Nchekwa ≥3000N | ||
| \multirow{4}{*}{2} | \multirow{4}{*}{Nchekwa Akarakara Mmekọrịta} | Asụsụ Nchekwa Ụzọ Etiti Ọtụtụ ≤2ms |
| Asụsụ Nchekwa Ụzọ Etiti Ọtụtụ ≤2ms | ||
| Otu Nchekwa Ụzọ Etiti Ọtụtụ 1.4-2.0m/s | ||
| Otu Nchekwa Ụzọ Etiti Ọtụtụ 1.0-1.8m/s | ||
| 3 | Ụzọ Etiti Ọtụtụ Ihe Nritee | Isi Ụzọ Etiti Ọtụtụ ≤45μΩ |