Pole Mounted Switch
01
The ZW32-24 Outdoor Vacuum Circuit Breaker
The ZW32-24 Outdoor Vacuum Circuit Breaker (VCB) is a medium-voltage switchgear solution specifically designed for 24 kV distribution networks. It provides reliable protection, control, and switching capabilities for electrical systems in outdoor environments. This breaker is an ideal choice for applications requiring high performance, durability, and low environmental impact.This breaker is primarily used to interrupt and close load currents, overload currents, and short-circuit currents in power lines. It is widely applicable in substations and industrial or mining enterprise distribution systems for protection and control.
Additionally, it is particularly suitable for rural power grids where frequent operation is required.
PRODUCT PARAMETERS
Item |
Unit |
Parameter |
|||
Load switch main technical parameters and mechanical properties | |||||
Rated voltage |
kV |
12 |
40.5 |
||
Rated current |
A |
630 |
1250 |
||
Rated frequency |
Hz |
50 |
50 |
||
Rated peak withstand current |
kA |
50 |
63 |
||
Rated short-time withstand current |
kA |
20 |
25 |
||
Rated short-time withstand current duration |
S |
4 |
4 |
||
Rated active load breaking current |
A |
630 |
1250 |
||
Rated closed loop breaking time |
A |
630 |
1250 |
||
Rated cable charging breaking current |
A |
10 |
10 |
||
5% at rated active load breaking current |
A |
31.5 |
63 |
||
Rated no-load transformer breaking current rated capacity |
kVA |
1250 |
1250 |
||
Rated short-circuit closing current |
kA |
50 |
63 |
||
The main circuit of electronic |
μΩ |
≤150 |
≤100 |
||
1min power frequency withstand voltage(RMS) |
Dry test |
Between poles and poles to the ground |
kV |
42 |
95 |
Wet test |
Isolating fracture |
kV |
48 |
110 |
|
Between poles and poles to the ground |
kV |
30 |
85 |
||
Lightning impulse |
Between poles and poles to the ground |
kV |
75 |
185 |
|
withstand voltage (peak) |
Isolating fracture |
kV |
85 |
215 |
|
Mechanical life |
Times |
10000 |
10000 |
||
Three-phase, switching in different period |
ms |
≤5 |
≤5 |
||
The contact blade just close position deviation |
mm |
≤2 |
≤2 |
||
The main contact blade pressure |
N |
300±30 |
450±50 |
||
The contact blade distance |
mm |
≥180 |
≥380 |
||
Manual operating torque |
Nm |
≤200 |
≤300 |
||
Load switch vacuum arc extinguishing chamber assembly and adjustment technology | |||||
Open clearance between contacts |
mm |
5±1 |
18±1 |
||
Average opening speed |
m/s |
1.1±0.2 |
1.6±0.2 |
||
Three phase opening different period |
ms |
≤5 |
≤5 |
||
Three phase closing different period |
ms |
≤5 |
≤5 |
||
Distance between the charged body and the pole to ground |
mm |
> 200 |
> 380 |
||
Product Features
Premium Materials and Protection:
Enclosure made of high-quality stainless steel or galvanized steel treated with Dacromet anti-corrosion coating and UV-resistant varnish.
Excellent resistance to corrosion, salt spray, and harsh environmental conditions.
High Insulation Performance:
Uses epoxy resin and silicone rubber composite insulation materials.
High insulation level with anti-pollution, ozone resistance, UV resistance, hydrophobicity, and wide temperature adaptability.
Spring Operating Mechanism:
Equipped with a spring mechanism supporting manual and electric operations.
Optional remote control device and inrush current avoidance device available.
Energy storage motor rated power ≤70W, suitable for backup power configurations.
Arc Extinguishing Technology:
Features high-quality stainless steel brazing technology with no electroplating, ensuring stable weld quality and low leakage rates.
Special ceramic metallization formulas and processes ensure excellent gas tightness and tensile strength.
Current Transformer:
Made of high-grade magnetic materials with epoxy resin and silicone rubber composite insulation.
High capacity, precision, reliability, and maintenance-free performance.
Intelligent and Environmentally Friendly:
Supports controllers for distribution automation.
Zero pollution to the surrounding environment, qualifying as a green product.
Installation and Usage
Visual Inspection:
Check for damages or cracks on the breaker.
Ensure the on/off indicators and energy storage indicators are intact and properly installed.
Verify no deformation or damage to the enclosure and its seals.
Fasteners and Mechanism Test:
Check that all fasteners are secure.
Perform manual and electric operations for 10 complete open/close cycles; ensure reliability.
Dielectric Test:
Conduct power frequency withstand voltage tests to verify insulation performance.
Contact Information
For more details, please contact us:
Company Name: KENJING GROUP Co., Ltd.
Phone: +86-15888718229
Email: john@china-kenjing.com