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KYN61-40.5 Air-Insulated Withdrawable Metal-Clad Switchgear - Reliable China Suppliers and Factory Solutions
Detail introduction
In the KYN61-40.5 withdrawable AC metal-clad switchgear, the handcart is equipped with an integrated ZN85 (VTD9) ND4-40.5 vacuum circuit breaker or a corresponding SF6 circuit breaker as the main switch. The design is compact, with superior performance and high reliability.
KYN61 switchgear comply with the standards: IEC62271-200, GB3906 as well as many other national specifications, with reliable "five-protection interlock" function, providing a safer environment for the operators,with high structure strength, safe and user-friendly, reduced installation and maintenance costs, can completely satisfy user requirements.
Service Conditions
Temperature & Altitude
Ambient temperature: -15℃~+40℃
Altitude: ≤1000M
Altitude: ≤1000M
Humidity & Seismic
Daily average RH: ≤95%
Monthly average RH: ≤90%
Seismic resistant level: < Grade 8
Monthly average RH: ≤90%
Seismic resistant level: < Grade 8
Environment
Ambient air should be free of the pollution of corrosive or flammable gases, vapor, etc.
※Note: If the service environment exceeds the above conditions, please confirm with the manufacturer.
Technical Data
Main technical data of KYN61 switchgear
| Item | Unit | Technical parameters | |
|---|---|---|---|
| Rated voltage | kV | 40.5 | |
| Rated frequency | Hz | 50/60 | |
| Rated current of branch busbar | A | 630、1250、1600、2000、2500、3150 | |
| Rated insulation level | Power frequency withstand voltage (1 min) | kV | 95/118 (isolating fracture) |
| Lightning impulse withstand voltage | 185/215 (isolating fracture) | ||
| Power frequency withstand voltage of auxiliary circuit (1 min) | V | 2000 | |
| Rated short circuit breaking current (rms) | kA | 25、31.5 | |
| Rated short time making current (peak) | kA | 63、80 | |
| Rated short time peak withstand current | kA | 63、80 | |
| Rated short time withstand current (4s) | kA | 25、31.5 | |
| Rated voltage of auxiliary control circuit | V | DC110/220 AC220 | |
| Protection degree | - | External enclosure: IP4X (the panel open: IP2X) | |
| External dimensions of switchgear (W x D x H) | mm | 1400×2800×2600 1200×2600×2400 (optional) | |
Structure features
KYN61 switchgear is designed as per the standard of metal-clad switchgear, conforms to IEC 62271 and GB/T3906. It mainly includes panel structure and the withdrawable part. The panel itself consists of four independent compartments: busbar compartment, circuit breaker compartment, cable compartment, low voltage compartment. The protection degree of enclosure is IP4X, and P2X for compartments. The withdrawable part includes the main switch (or other functional components)and support part. (The structure is shown in drawing 1)
KYN61 switchgear provides bottom and overhead incoming and outgoing cable types, typical scheme including incomer, feeder, metering, measuring coupler, etc.
Drawing 1: Outline dimension and structure of switchgear
Main Compartments
A. Instrument room
B. Circuit breaker room
C. Busbar room
D. Cable room
Components & Parts
1. Panel
2. Circuit breaker
3. Contact box
4. Secondary plug device
5. Valve
6. Pressure relief device
7. Small busbar
8. Busbar bushing
9. Main busbar
10. Branch busbar
11. Fixed contact
12. Insulated clapboard
13. Earthing switch
14. Current transformer
15. Cable
16. Cable cover plate
17. Earthing busbar
Order Notes
The clients should provide the following documents:
- Main wiring scheme No., single line system diagram, arrangement diagram and layout plan.
- The requirements for control, measurement and protection of switchgears, and requirements for other interlocks and automatic devices.
- Main components type, specification and quantity in switchgear.
- If need busbar bridge, please provide the size of span and height.
- If the switchgear used under special condition, please inform the details.
- Please provide type and quantity if need additional parts.
Frequently Asked Questions
Q
What standards does the KYN61-40.5 switchgear comply with?
KYN61 switchgear complies fully with IEC62271-200 and GB3906 standards, along with various other national specifications. It features a highly reliable "five-protection interlock" function to ensure operator safety.
Q
What are the standard ambient service conditions for this switchgear?
The standard operating conditions include an ambient temperature range of -15℃ to +40℃, an altitude of ≤1000 meters, daily average relative humidity ≤95%, monthly average relative humidity ≤90%, and a seismic resistance level under Grade 8 in an environment free of corrosive or flammable gases.
Q
What type of circuit breakers can be used in the handcart?
The handcart is equipped with an integrated ZN85 (VTD9) ND4-40.5 vacuum circuit breaker or a corresponding SF6 circuit breaker as the main switch, designed for compact layout and high reliability.
Q
What is the protection degree of the KYN61 switchgear?
The external enclosure provides a protection degree of IP4X. When the panel is open, the internal compartments have a protection rating of IP2X.
Q
What information is required when placing an order?
Clients need to provide the main wiring scheme, single line diagram, control and protection requirements, specifications and quantities of main components, busbar bridge dimensions (if required), special environmental conditions (if any), and the type and quantity of any additional spare parts.