Product Overview:
The KYN28A series is engineered to meet the demands of modern electrical systems, offering a high level of safety, reliability, and operational flexibility. With its metal-enclosed structure and movable mechanism, it is suitable for use in power plants, substations, industrial facilities, and commercial buildings.
Key Features:
Installation locations without fire,explosion danger, serious pollution.chemical corrosion and violent vibration.
A.Busbar compartment B.Circuit breaker trolley compartment
C.Cable compartment D.Relay meters compartment
| 1. Shell
2. Branch busbar 3. Busbar bushing 4. Main busbar 5. Static contact assembly 6. Contact box 7. Current transformer 8. Earthing switch 9.Cable 10. Surge arrester
|
11. Earthing main busbar
12. Detachable partition 13. Board (Valve) 14. Secondary plug 15.Circuit breaker trolley 16. Heating device 17. Withdrawable horizontal board 18. Earthing switch operation 19. Secondary trunking 20. Base board 21. Pressure relief channe |
| Content | Unit | Value | |
|---|---|---|---|
| Rated Voltage | kV | 12 | |
| Rated Current | A | 630~4000 | |
| Rated Frequency | Hz | 50/60 | |
| Power Frequency Withstand Voltage in 1 min
|
Phase.Earthed | kv | 42 |
| Isolating Fracture | kv | 48 | |
| Lightning Impulse Withstand Voltage(Peak)
|
Phase,Earthed | kV | 75 |
| Isolating Fracture | kv | 85 | |
| Rated Current of the Main Busbar | A | 630~4000 | |
| Rated Current of the Branch Busbar | A | 630~4000 | |
| Rated Short-circuit Breaking Current | kA | 20/25/31.5/40/50 | |
| Rated Short Circuit Making Current | k A | 50/63/80/100/125 | |
| Rated Short-time Withstand Current(4s) | kA | 20/25/31.5/40/50 | |
| Rated Peak Withstand Current | kA | 50/63/80/100/125 | |
| Frequency Withstand Voltage in 1 min of Aux Control Loop | V | 2000 | |
| Intenal Arc Duration Test(0.5s) | kA | 31.5~40 | |
| Rated Voltage of Aux Control Loop | V | AC or DC 110/220 | |
| Degrees of Protection | IP | IP4X(IP2X when the front door is opened) | |
Suitable for AC 50HZ, rated working voltage 3-10KV, rated working current up to 3150A power distribution system, can be used as power generation, substations, factories, high-rise buildings and other places of power supply, power supply and large motor start, and loop control, protection and monitoring.
1. Inerchangeability: can be equipped with voltage transformer vehicle, metering vehicle, isolation vehicle, station change landing vehicle, etc., these vehicles have the same purpose and can be reliably interchanged.
2. Installation method: The cabinet can be installed against the wall and maintained in front of the cabinet, which reduces the floor area and improves the space utilization rate.
3. Anti-condensation and anti-corrosion: the circuit breaker room and cable room can be equipped with heaters to effectively prevent condensation and corrosion and ensure the safe operation of the equipment.
4. Cable room design: The cable room has sufficient space and can connect multiple cables to meet different cable access needs.
5. Safety performance: It has a reliable “five prevention” blocking function, including preventing misdivision and closing circuit breaker, preventing load division and closing circuit breaker, preventing live hanging (closing) ground wire (grounding switch), preventing ground wire transmission, and preventing straying into live intervals, which greatly improves the safety of operation.
6. Protection level: The product shell has IP4X level of protection, which can effectively prevent solid foreign bodies and dust from entering and protect the internal equipment.
7. Mechanical strength: The shell is made of aluminum-zinc clad steel plate, which is assembled by bolts after multiple bending and forming by CNC machine tool, and has high mechanical strength. At the same time, the cabinet door is sprayed with plastic coating, which has strong impact resistance and corrosion resistance.
8. Main switch selection: VS1(ZN63) vacuum circuit breaker with high breaking capacity and low closure value , or VD4 vacuum circuit breaker produced by ABB, these circuit breakers are advanced, reasonable, compact, superior performance, safe and reliable
Installation should be performed by qualified personnel following the manufacturer’s guidelines, ensuring that all components are correctly assembled and that safety interlocks are functioning properly.
Regular maintenance includes inspection of mechanical components, checking for wear and tear, ensuring the cabinet is clean, and verifying that all safety features are operational.
