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40.5kV Solid Insulated Switchgear/RMU
Detailed description
Product Advantages
Modular architecture
Modular architecture enables reduction of switchgear dimensions Dimensions of Solid Insulated Switchgear : 700 × 2000 × 1150 it is only 1/6 of traditional air insulated type ie KYN61.
Optimized Electric Field
Computing technology facilitate optimal design of electric field and isolation.
Safety
Sealed electrified body IP67. Inner cone cable terminal to improve the connection reliability
Extreme Environment Application
Suitable for cold, high altitude, humidity, corrosion, lowland and explosion-proof area.
All Operating Condition Environment
Ambient temperature: -50 ℃ ~ +70 ℃ ; Altitude: ≤ 5500 m Internal and external arcing test report (switches, bus bar, cable compartment) detection Immersion detection test report Salt spray testing report The circuit breaker is composed of mechanism transmission box and circuit breaker poles.
Earthing /Disconnecting switch assembly
There are three internal cone sockets in the poles, among which the 2# cone is used for installing lightning arrester, and the two 3# cones are used for connecting 630A cables.
Parameters
Module V |
||||
Name |
Unit |
Vacuum Circuit Breaker |
Disconnecting Switch |
Earthing Switch |
Rated Voltage |
kV |
40.5 |
40.5 |
40.5 |
Arc Quenching |
Vacuum |
|||
Rated Current |
A |
1250 |
1250 |
1250 |
Rated Frequency |
Hz |
50/60 |
50/60 |
50/60 |
Main Circuit Resistance |
μΩ |
≤120 |
≤120 |
≤120 |
Power Frequency Withstand Voltage(1 min) |
kV |
118 |
118 |
118 |
Lightning Impulse Withstand Voltage |
kV |
215 |
215 |
215 |
Rated Short Circuit Breaking Current |
kA |
31.5 |
||
Breaking times |
Times |
30 |
||
Rated Short Circuit Making Current |
kA |
80 |
||
Rated Short Time Withstand Current/Duration |
kA/s |
31.5/4s |
31.5/4s |
31.5/4s |
Rated Peak Withstand Current |
kA |
80 |
80 |
80 |
Internal Arcing Test (AFLR level) |
kA/s |
31.5kA/0.5s (including bus compartment, switch compartment, cable compartment) |
||
Degree of Protection |
IP67 |
IP67 |
IP67 |
|
Mechanical Endurance |
Times |
10000 |
3000 |
3000 |
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