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Product Overview
kyn61 40.5 Features & Benefits
- Precision Composite Enclosure: The cabinet is expertly assembled using imported aluminum-zinc coated steel plates and high-quality cold-rolled steel. The exterior is treated with an electrostatic spray coating, providing a professional aesthetic and long-term resistance to corrosion and environmental wear.
- Global Breaker Compatibility: Designed to seamlessly integrate with the dedicated ZN85-40.5 fully insulated vacuum circuit breaker (equipped with a spring operating mechanism). It is also fully compatible with world-class ABB breakers, including the VD4-40.5 and HD4-40.5 series.
- Effortless Handcart Operation: Features a high-precision nut and screw rod propulsion mechanism, allowing operators to push and pull the handcart smoothly and effortlessly with guaranteed interchangeability.
- Rigorous “Five-Prevention” Interlock: Equipped with a highly reliable mechanical interlock system that strictly prevents operational errors, ensuring ultimate safety for maintenance personnel.
- Superior Environmental Protection: The main enclosure provides an IP4X protection rating, safeguarding internal components from solid foreign objects. When the breaker room door is open, it maintains an IP2X rating.
Technical Model Breakdown
1. kyn61 40.5 Main Technical Parameters
| Parameter | Unit | Technical Data |
|---|---|---|
| Rated Voltage | kV | 40.5 |
| 1min Power Frequency Withstand Voltage | kV | Phase-to-phase, Ground: 95 Fracture: 118 |
| Lightning Impulse Withstand Voltage | kV | Phase-to-phase, Ground: 185 Fracture: 215 |
| Rated Frequency | Hz | 50 |
| Rated Main Busbar Current | A | 1250, 1600, 2000 |
| Rated Branch Busbar Current | A | 1250, 1600, 2000 |
| Rated Short-circuit Breaking Current | kA | 25, 31.5 |
| Rated Short-time Withstand Current (4s) | kA | 25, 31.5 |
| Rated Peak Withstand Current | kA | 63, 80 |
| Protection Grade | – | Enclosure IP4X, Breaker Door Open IP2X |
2. Switchgear Outline Dimensions
| Dimension | Size (mm) |
|---|---|
| Width (W) | 1400 |
| Depth (D) | 2800 |
| Height (H) | 2600 |
Model Nomenclature Breakdown
Understanding the model designation KYN61-40.5 (Z):
- K: Armored Type (Metal-clad)
- Y: Withdrawable Type
- N: Indoor Application
- 61: Design Serial Number
- 40.5: Rated Voltage (kV)
- (Z): Vacuum Circuit Breaker Compatibility
Reliability and Conclusion
By integrating cutting-edge vacuum circuit breaker technology with a heavily fortified aluminum-zinc enclosure, the kyn61 40.5 switchgear provides unparalleled stability for high-voltage infrastructure. Its exceptional short-circuit breaking capabilities and foolproof mechanical interlocks make it a mandatory upgrade for ensuring the long-term safety of your 35kV networks.
FAQ
The switchgear operates efficiently in ambient temperatures between -15°C and +40°C. Standard installation altitude is up to 1000m (altitudes up to 2000m can be accommodated via special order). It is also designed to withstand earthquake intensities up to 8 degrees.
It is highly versatile. It natively matches the ZN85-40.5 fully insulated vacuum circuit breaker, and it is also completely compatible with premium international units such as ABB's VD4-40.5 and HD4-40.5.
Yes, it features a comprehensive "five-prevention" mechanical interlock system. This ensures operators cannot perform unsafe actions, such as pushing or pulling the handcart under load, or straying into a live high-voltage compartment.
