Applicable to power supply system of rated voltage of 35kV, AC 50Hz, and also used for terminal power supply, or equipped in box-type transformer substation, or for control and protection device of electrical energy. Technical specifications comply with the provisions of IEC298. Application fields include power grid, factory distribution, high voltage transmission, railway system, urban power distribution, wind power generation, etc.
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40.5kV Solid Insulated Switchgear.pdf
Product Advantages
Solid Insulation
Shielded layer of conductive material makes the surface at earth potential everywhere; it is accidently touchable providing safety features for operator.
This shielded solid insulated switchgear, which is completely solid insulated, has entire circuit insulated by epoxy and silicon rubber, leaves no live parts in free air; given switchgear less affection of dirt, humidity and pollutions etc.; requires less necessity for maintenance. Each phase is selfcontained into single epoxy block, significantly reducing phase to phase discharge and risks of internal arc fault.
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.
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| Earthing / Disconnecting Switch Assembly | There are three internal cone socket in the poles, among which the 2# cone is used for installing lightning arrester, and the two 3# cone are used for connecting 630A cables. |
| Unit | Module V | |||
| 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 |
