| Handelmerk | Switchgear parts |
| Modelnommer | 40.5kV/1250A-31.5kA DRIEPOSISIE GIS VCB(Vakuümkringbreek) |
| Gedraaide Spanning | 40.5kV |
| Gedraaide stroom | 1250A |
| Gedekte korte-sirkuitverbrekingstroom | 31.5kA |
| Reeks | RNGIS-40.5 |
Hierdie 40,5 kV vakuümsirkuitbreek (VCB) is aangepas vir gasgeïsoleerde skakeltoestelle (GIS) stelsels, wat drie-posisie funksionaliteit (breking, isolering en gronding) integreer om hoëspanningskragbeheer te stroomlyn. Dit ondersteun 'n bepaalde stroom van 1250A en 'n brekvermoë van 31,5 kA, wat betroubare beskerming teen kortsluitings en oorbelasting in medium- tot hoëspanningsnetwerke verseker.
Deur 'n modulêre ontwerp toe te pas, word dit gekenmerk deur 'n kompakte struktuur, goeie breekprestasie, hoë betroubaarheid, langer leeftyd, volledige isolering, sonder instandhouding, klein voetspoor, en kan wydliks gebruik word in industriële en burgerlike ringnetwerke en eindkragvoorsieningsnetwerke. Spesifiek geskik vir klein sekondêre verspreidingsstasies, skakelstasies, industriële en mynbouondernemings, lugbane, spoorweë, snoubane, metros, handelsareas, woonareas, windkrag, opto-elektronika en ander velde.
Omgevingsvoorwaardes vir gebruik
| Item | Parameter |
|---|---|
| Installasieplek | Binne die Kabinet |
| Omgewings Temperatuur (°C) | -45~+140 |
| Hogte (m) | ≤2000 |
| Lugvochtigheid (%) | Daglikse gemiddelde nie meer as 95%, maandelikse gemiddelde nie meer as 90% |
| Seismiese Intensiteit | ≤8 Graad |
Tegniese Spesifikasies
| 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) |
Meganiese eienskappe
| Volsryknr | Inspeksie Item | Tegniese Vereiste |
|---|---|---|
| \multirow{4}{*}{1} | \multirow{4}{*}{Hoofskakelaar Inspeksie} | Boogblusser Kamernommer (Wys Vervaardiger) |
| Oopstand 18-22mm | ||
| Oor Reis 3±1mm | ||
| Kontakdruk ≥3000N | ||
| \multirow{4}{*}{2} | \multirow{4}{*}{Meganiese Karakteristiek Inspeksie} | Oop Drie-fase Asinchronisiteit ≤2ms |
| Sluit Drie-fase Asinchronisiteit ≤2ms | ||
| Gemiddelde Oop Snelheid 1.4-2.0m/s | ||
| Gemiddelde Sluit Snelheid 1.0-1.8m/s | ||
| 3 | Skakelaar Lus | Lusweerstand ≤45μΩ |