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China KYN61-40.5 Armored Removable AC Metal-Enclosed Switchgear - Leading Suppliers & Factory for 40.5kV Solutions
Main Features
- The cabinet structure adopts an assembled design, with the circuit breaker featuring a handcart ground structure;
- Equipped with a newtype of composite insulated vacuum circuit breaker, characterized by good interchangeability and easy replacement;
- The handcart frame is equipped with a screw nut propulsion mechanism, allowing for easy movement of the handcart and preventing damage from accidental operation;
- All operations can be performed with the cabinet door closed;
- Interlocking between the main switch, handcart, and switch cabinet door adopts a mandatory mechanical interlocking method, satisfying the "five prevention" functions;
- The cable chamber has ample space, allowing for multiple cable connections;
- A rapid grounding switch is provided for grounding and closing short-circuit loops;
- The shell has a Level of Protection IP3X, while the handcart chamber door opened state has a Level of Protection IP2X;
- The product complies with GB3906-2006, DL/T404-2007, and refers to the international standard IEC298.
Use Environment Conditions
- Ambient temperature: Upper limit +40℃, with the average value measured over 24 hours not exceeding 35℃; lower limit -10℃;
- Altitude: Altitude not exceeding 1000m;
- Relative Humidity: Daily average not exceeding 95%, monthly average not exceeding 90%;
- Earthquake intensity: Not exceeding 8 degrees;
- Water vapor pressure: Daily average not exceeding 2.2kPa, monthly average not exceeding 1.8kPa;
- Surrounding environment: Locations free from fire, explosion hazards, severe pollution, chemical corrosion, and intense vibrations.
Technical Parameters
| Items | Units | Value | |
| Rated Operating Voltage | Opening Solenoid | V | DC220/110 AC220/110 |
| Closing Coil | |||
| Rated Operating Current | Opening Solenoid | A | 0.96(220V) 1.05(110V) |
| Closing Coil | |||
| Energy Storage Motor Power | W | 230 | |
| Nominal Voltage of Stored Energy Electric Machinery | V | DC220/110 AC220/110 | |
| Stored Energy Time | S | ≤12 |
Technical Parameters
Technical Parameters of Vacuum Switch Cabinet
| No. | Items | Units | Value |
| 1 | Nominal Voltage | KV | 40.5 |
| 2 | Rated Currency | A | 1250 1600 2000 |
| 3 | Rated Frequency | Hz | 50 |
| 4 | Rated Short-time Withstand Current | KA | 20 25 31.5 |
| 5 | Rated Peak Withstand Current | KA | 50 63 80 |
| 6 | Rated Power Frequency Withstand Voltage | KV | 95/1min |
| 7 | Rated Lighting Impulse Withstand Voltage | KV | 185 |
| 8 | Rated Short-circuit Period | S | 4 |
| 9 | Level of Protection | IP3X |
Main Technical Parameters of Vacuum Short-circuit
| No. | Items | Units | Value |
| 1 | Nominal Voltage | KV | 40.5 |
| 2 | Rated Frequency | Hz | 50 |
| 3 | Rated Power Frequency Withstand Voltage | KV | 95/1min |
| 4 | Rated Lighting Impulse Withstand Voltage | KV | 185 |
| 5 | Rated Currency | A | 1250 1600 2000 |
| 6 | Rated Short-time Withstand Current | KA | 20 25 31.5 |
| 7 | Rated Short-circuit Breaking Current | KA | 20 25 31.5 |
| 8 | Rated Peak Withstand Current | KA | 50 63 80 |
| 9 | Rated Short-circuit Period | ms | 4 |
| 10 | Opening Time | ms | 30≤t≤ 60 |
| 11 | ClosingTime | ms | 50 <t≤ 100 |
| 12 | Rated Short-circuit Breaking Current Times | Time | 20 |
| 13 | Machinery Service Life | Time | 10000 |
Switch Cabinet Dimensions
Installation of Switch Cabinet
- Height of the electrical room: ≥4500mm;
- Distance from the back of the cabinet to the wall: ≥1500mm;
- Flatness of the foundation structure: ≤1mm/ m²;
- The embedded channel steel of the foundation should not exceed 3mm above the ground;
- Can be fixed to the foundation using bolts or welding methods;
- The weight of the switch cabinet is approximately 1800kg;
- Width of the switch cabinet operational corridor (single row): ≥3000mm, double row (facing each other) :≥4000mm.
Ordering Instructions
WHEN PLACING AN ORDER, PLEASE SPECIFY:
- Main circuit scheme number, purpose, single-line system diagram, layout diagram, and floor plan of the distribution room;
- Auxiliary circuit wiring schematic and terminal arrangement diagram;
- Model, specifications, and quantity of electrical components within the switchgear;
- Requirements for control, measurement, and protection functions of the switchgear, as well as any other interlocking and automatic device requirements;
- If busbar connections are needed between switchgear or incoming cabinets, please provide specific data such as the rated current capacity of the busbar, span of the busbar, and height above ground;
- If accessories or spare parts are required, please specify the types and quantities;
- If the switchgear is to be used in special environmental conditions, please detail these conditions when placing the order.
Frequently Asked Questions (FAQ)
What standards does the switch cabinet comply with?
The product complies with the national standards GB3906-2006 and DL/T404-2007, and refers to the international standard IEC298.
What is the protection level of the switch cabinet shell?
The shell of the switch cabinet features a Level of Protection of IP3X. When the handcart chamber door is in the opened state, the protection level is IP2X.
What are the ambient temperature limits for operating the equipment?
The ambient temperature should have an upper limit of +40℃ (with the average 24-hour value not exceeding 35℃) and a lower limit of -10℃.
What are the key space requirements for installing the switch cabinet?
The electrical room height must be ≥4500mm, the distance from the back of the cabinet to the wall must be ≥1500mm, and the operational corridor width must be ≥3000mm for a single row or ≥4000mm for a double row.
What is the weight and foundation flatness requirement for installation?
The switch cabinet weighs approximately 1800kg. The flatness of the foundation structure must be ≤1mm/ m², and the embedded channel steel should not exceed 3mm above the ground level.
What details should be provided when placing an order?
Please specify the main circuit scheme number, system and layout diagrams, auxiliary circuit wiring schematics, model and quantity of electrical components, control and protection functions, busbar details if applicable, and any special environmental conditions.