Fenarro Frn28A Series Movable Metal-Clad Enclosed High-Voltage Switchgear

The KYN28A-12(Z)(GZS1) type armored withdrawable AC metal-enclosed switchgear (hereinafter referred to as "switchgear") is suitable for three-phase 50 Hz power systems. It is used for receiving and distributing electrical energy and controlling, protecting, and monitoring circuits.

This product complies with the GB3906 standard "3-35kV AC metal-enclosed switchgear," GB/T11022 "Common technical requirements for high-voltage switchgear and controlgear standards," IEC60298 "AC metal-enclosed switchgear and controlgear for rated voltages above 1kV and up to 50kV," and DL/T404 "Technical conditions for ordering indoor AC high-voltage switchgear."

1. Ambient air temperature; maximum temperature +40ºC, minimum temperature -15ºC.
2. Humidity conditions;
   Daily average relative humidity: ≤95%
   Daily average water vapor pressure does not exceed 2.2kPa;
   Monthly average cabinet relative humidity: ≤90%
   Monthly average water vapor pressure does not exceed 1.8kPa;
3. Altitude: less than 1000m.
4. Seismic intensity: not exceeding 8 degrees.
5. The surrounding air should not be exposed to corrosive or flammable gases, water vapor, or other obvious pollutants.
6. No places with frequent severe vibrations.
7. When used under normal environmental conditions exceeding the specifications of GB3906, it should be negotiated between the user and the manufacturer.

1. The structure of the switch device is shown in Figure 1.
2. Fully metal assembled, modular structure with a wide range of combination options.
3. The cabinet is made of imported aluminum-zinc coated thin steel plate, processed by CNC machine tools, using advanced multiple folding technology, connected with pull lily nuts and high-strength bolts, with high precision, corrosion resistance, light weight, high strength, and strong component interchangeability.
4. Can be equipped with ZN 63A-12 series or imported VD4 series vacuum circuit breakers, with wide applicability, high reliability, and maintenance-free operation for many years.
5. The handcart device has positioning and display devices for working, testing, and various positions, ensuring safety and reliability.
6. Various types of handcart devices can be changed like modular blocks, ensuring free interchangeability among carts of the same specifications, while carts of different specifications are strictly prohibited from entering.
7. The handcart is transported by a dedicated carrier, making it easy and flexible to operate.
8. The cable compartment can accommodate up to 9 single-core cables.
9. Highly reliable interlocking device that fully meets the "five prevention" requirements.
10. Each high-voltage compartment has a pressure relief channel to ensure personal safety.
11. The front door is equipped with an observation window made of explosion-proof glass, allowing the working status of internal components to be observed.
12. When used under normal environmental conditions exceeding the GB3906 specifications, it should be determined through consultation between the user and the manufacturer.

A Busbar compartment
B Circuit breaker compartment
C Cable compartment
D Relay and instrument compartment
1 Outer shell
2 Branch busbar
3Busbar sleeve
4 Main busbar
5 Static contact device
6 Contact box
7 Current transformer
8 Ground switch
9 Cable
10 Surge arrester
11 Grounding busbar
12 Removable partition
13 Partition (valve)
14 Secondary socket
15 Circuit breaker trolley
16 Heating device
17 Withdrawable horizontal partition
18 Ground switch operating mechanism
19 Base plate
20 Pressure relief device
21 Control wire duct