ZW32-24 Series Outdoor High Voltage Vacuum Circuit Breaker
Technical specification
|
No. |
Item |
Units |
Parameters |
||
|
1 |
Rated voltage |
kV |
24 |
||
|
2 |
Rated frequency |
Hz |
50 |
||
|
3 |
Rated current |
A |
630 |
1250 |
|
|
4 |
Rated short-circuit breaking current |
kA |
20 |
25 |
|
|
5 |
Rated peak withstand current(peak) |
KA |
50 |
63 |
|
|
6 |
Rated short-circuit closing current(peak) |
kA |
50 |
63 |
|
|
7 |
Rated short-time withstand current and duration |
kA/s |
20/4 |
25/4 |
|
|
8 |
Rated operation sequence |
|
O-0.3s-CO-180s-CO |
||
|
9 |
Mechanical life |
Times |
10000 |
||
|
10 |
Breaking times of rated short-circuiit breaking current |
Times |
20 |
||
|
11 |
1min power frequency withstand voltage |
(wet)over the ground/interphase/fraacture |
kV |
50/65 |
|
|
(dry)over the ground/interphase/fracture |
65/79 |
||||
|
Secondary loop |
2 |
||||
|
12 |
Lighting impulse withstand voltage(peak) Over the ground, interphase/fracture |
kA |
125/145 |
||
|
13 |
Weight |
kg |
115 |
||
Product Model
Dimension
Product Functions
◆Comprehensive Current Switching: Safely opens and closes various load currents in 24kV power systems for diverse applications.
◆Frequent Operation Capability: Engineered for locations requiring repeated switching without performance degradation.
◆Dual-Mode Spring Mechanism: Features manual and electric operation, with available remote control and anti-flow switching devices.
◆Low Power Requirement: Requires ≤70W power supply, enabling easy backup power integration and remote monitoring.
◆Fault Current Interruption: Interrupts fault currents to protect downstream equipment and ensure system stability.
Applicable Environment
◇Rated System: 24kV, 50Hz three-phase AC outdoor power systems.
◇Temperature Range: Reliable operation from -40℃ to +40℃.
◇High-Altitude Capability: Designed for elevations up to 3000 meters.
◇Wind Resistance: Withstands wind speeds up to 34m/s (700Pa).
◇Humidity Tolerance: Handles daily humidity ≤95% and monthly ≤90%.
◇Pollution Level: Suitable for class IV pollution environments.
◇Ice Resistance: Withstands ice thickness up to 10mm.
◇Safety Requirements: Suitable for areas free from fire, explosion, or chemical corrosion hazards.
Product Highlights
◆Superior Environmental Resistance: Stainless steel shell with Dacro anti-rust treatment and UV-resistant varnish provides excellent anti-corrosion and salt fog resistance.
◆Advanced Insulation Technology: APG enclosed columns with silicone rubber coating offer condensation resistance, compact size, and long working life.
◆Optimized Spring Mechanism: Unique buffer design ensures minimal rebound and low noise; ≤70W power requirement enables easy backup integration.
◆Premium Vacuum Interrupter: Stainless steel brazing technology ensures high welding quality, low leakage rate, and tensile strength exceeding 130MPa.
◆High-Performance Current Transformer: Made of quality magnetic material with composite insulation, offering large capacity, high stability, and precision accuracy.
◆International Standards Compliance: Fully complies with GB1984-2003, DL/T402-2007, and DL/T403-2000.
◆Green & Intelligent Design: Zero pollution with miniaturization, maintenance-free operation, and intelligent capabilities for modern distribution networks.