Ang 40.5kV circuit breaker nga mao ang usa ka core component sa gas-insulated switchgear (GIS), nagpangamuyo sa SF6 gas aron makab-ot og maayo nga insulation ug arc-quenching performance. Gigisunod para sa medium-to-high voltage grids, adunay mas rapido ug reliable nga breaking ug switching operations aron protektahan kontra sa overcurrents ug short circuits.
Ang iyang compact, sealed structure nagminimo sa footprint, resist sa environmental factors (dust, moisture, extreme temps), ug nareduce ang panginahanglan sa maintenance. Giequip sa advanced mechanical interlocks ug smart monitoring compatibility, siguradoha kini nga safe ug precise operation—critical para sa substations, urban power grids, ug industrial facilities. Compliant sa IEC 62271 ug GB standards, adunay long service life ug stable performance, gihapon kini isip trusted choice para sa efficient grid management.
Ang main circuit mao ang 630A-20kA (4S) ug 25kA (3S), ug ang mechanical life mao ang 10000 times. Ang grounding circuit 20kA (2S), mechanical life 2000 times.
Considerations for the use of environmental conditions
Ang altitude dili mogawas sa 1000m, ug ang crack degree dili mogawas sa 8 degrees. Pollution level: ll
Ang environmental temperature sa product mao ang -40 degrees ~+140 DEG C, ang relative humidity dili mogawas sa 90% kada adlaw, ug ang average dili mogawas sa 90% kada bulan;
Ang installation site nga may frequent ug violent shock, water vapor, chemical corrosion deposition, salt fog, dust, dirt, ug fire, nga obvious nga makaapekto sa performance sa mechanism, dili suitable para sa installation sa explosive dangerous installations.
Model composition and meaning
Main technical parameters
| Serial number |
content |
Company |
technical parameter |
| 1 |
Main circuit resistance of circuit breaker |
UΩ |
≤ 30 |
| 2 |
Super |
mm |
2-3 |
| 3 |
Open distance |
mm |
19±1 |
| 4 |
bounce |
ms |
≤ 5 |
| 5 |
Mean speed of gate separation |
m/s |
1.4-2.0 |
| 6 |
Closing average speed |
m/s |
0.8-1.2 |
| 7 |
Three phases of switching off |
ms |
≤ 2 |
| 8 |
Closing three phases |
ms |
≤ 2 |
Outline and installation dimensions of circuit breaker