Products
40.5kV Phase Column Component
40.5kV phase column component refers to the upper and lower brackets, upper and lower outlet blocks, arc extinguishing chamber. Flexible connection, conductive clips and insulating cylinders composed of the primary circuit assembly; is the core component of the circuit breaker in the 40.5kV system, its main role is to make the medium and high voltage circuit cut off the power supply through the arc extinguishing chamber of the vacuum excellent insulation can quickly quench the arc and inhibit the current, to avoid accidents and accidents, mainly used in the transmission and distribution of electric power control system.
Product Technical Parameters
|
No. |
Main technical parameters |
||
|
Voltage parameters |
|||
|
1 |
Rated frequency(fr) |
Hz |
50/60 |
|
2 |
Rated voltage(Ur) |
kV |
40.5 |
|
3 |
Rated short-time(1 min)frequency withstand voltage(Ud) |
kV |
95 |
|
4 |
Rated lightning impulse withstand voltage (peak) (UP) |
kV |
185 |
|
Current parameter |
|||
|
1 |
Rated current(Ir) |
A |
630/1250/1600/2000/2500 |
|
2 |
Rated short-circuit breaking current(Isc) |
kA |
25/31.5 |
|
3 |
Rated short-circuit breaking current breaking times |
Times |
30 |
|
4 |
Rated short-time withstand current(Ik) |
kA |
25/31.5 |
|
5 |
Rated short circuit duration(tk) |
s |
4 |
|
6 |
Rated peak withstand current(Ip) |
kA |
63/80 |
|
7 |
Rated short-circuit making current(IMC) |
kA |
63/80 |
|
8 |
DC component of rated short-circuit breaking current |
% |
40 |
|
9 |
Rated sequence of operation |
O-0.3s-CO-180s-CO |
|
|
Mechanical parameters |
|||
|
1 |
Mass of moving parts |
kg |
3.2~3.5 |
|
2 |
Contact self-closing force |
N |
200±50~230±100 |
|
3 |
Rated contact pressure |
N |
2700±200~4700±100 |
|
Demand for switching mechanical characteristics |
|||
|
1 |
Contact opening distance |
mm |
22±1 |
|
2 |
Average breaking speed (contact closed position to 75% open distance) |
m/s |
1.7±0.3 |
|
3 |
Average closing speed (30% open distance ~ contact closed position) |
m/s |
0.8±0.2 |
|
4 |
Contact closing bounce time |
ms |
≤2 |
|
5 |
Contacts closing and opening are not synchronized |
ms |
≤2 |
|
6 |
Amplitude of rebound of tripping contacts |
mm |
≤2 |
|
Life |
|||
|
1 |
Storage period |
years |
20 |
|
2 |
Mechanical life |
Times |
10000 |
|
3 |
Allowable contact wear thickness |
mm |
3 |
Product Advantages
the insulating cylinder itself has good insulating properties, through precise assembly can provide reliable insulation protection for the internal conductor or electrical components, effectively preventing leakage, short-circuit and other electrical faults, greatly improving the safety and stability of the electrical system.
the strong insulating cylinder can provide good mechanical protection for internal components against external impact, extrusion, vibration and other external influences; to prevent the internal components from mechanical damage resulting in electrical performance degradation or malfunctioning, prolonging the service life of the equipment.
insulating cylinder usually adopts standardized design, the assembly process is relatively simple, fast, can improve the production efficiency; when the need for maintenance or overhaul of the internal electrical components, just dismantle the insulating cylinder can be easily operated without the need for large-scale dismantling of the entire electrical system.
the insulated cylinder can be customized according to the actual demand, adapting to different space layout requirements; able to install multiple electrical components centrally in an insulated cylinder, realizing efficient use of space and making the electrical system more compact and neat.
high-quality insulating cylinders have good corrosion resistance, high temperature resistance and low temperature resistance, etc., and can work stably in various harsh environmental conditions; provide a strong guarantee for the reliable operation of electrical equipment in harsh environments.
Product Applications
40.5kV phase column component widely used in metallurgy, mining, petroleum, chemical industry, railroad, broadcasting, communication, industrial high-frequency heating and other 40.5kV power distribution systems.
Product Outline Drawing
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