KYN28-12 armored withdrawable AC metal-enclosed switchgear

KYN28-12(GZS1) armored withdrawable AC metal-enclosed switchgear is suitable for three-phase AC 50Hz power systems to receive and distribute electricity and provide circuit control, protection and monitoring. Newly developed versions with high current ratings and high breaking capacity can also be used separately at high-voltage generator outlets.

This product complies with: GB3906 "3-35kV AC metal-enclosed switchgear"; GB/T11022 "Common technical requirements for high-voltage switchgear and controlgear standards"; IEC298 "AC metal-enclosed switchgear and controlgear for rated voltages above 1kV and up to and including 52kV".

Peripheral air temperature: maximum temperature + 40°C, minimum temperature - 15°C.

Humidity condition:

Daily average relative humidity: ≤95%, with daily average water-vapor pressure ≤2.2kPa; monthly average relative humidity: ≤90%, with monthly average water-vapor pressure ≤1.8kPa.

Altitude: no more than 2500m.

Seismic intensity: No more than 8 degrees.

The surrounding air should be free from visible pollution such as corrosive or flammable gases, water vapour, etc.

There are no frequent severe vibration sites.

Use under normal conditions in excess of those specified in GB3906, in consultation between the user and the manufacturer.

Note 1: Short circuit capacity of current sensors should be considered separately.

2. See the corresponding catalog for ZN63A-12 technical parameters.

3. For the 1000m-altitude version: rated current ≤1250A; rated short-circuit breaking current ≤31.5kA.

1. Switching equipment structure (see figure below)

2. All-metal, modular assembled construction.

3. The container selects imported aluminium zinc sheeting, which is processed through the FMS flexible processing system, using advanced, multi-penetrating processes, which are linked to a plume, high-strength bolt, high-precision, corrosive, light-weight, high-strength, high-intensity, high-interoperability.

4. The ZN63A-12(VS1) series, which can be assembled, or the import of IVD4-series vacuum breakers, which are of wide applicability, reliability and maintenance-free.

5. The truck has test and service positions, each with locating and indication devices for safe, reliable operation.

6. Cars of the same size are freely interchangeable and highly interchangeable.

7. Delivery of hand-cars by specialized carriers, which are light and flexible.

8. The cable compartment accommodates up to 9 single-core cables.

9. Reliable mechanical and electrical interlocks fully satisfy the five protections against incorrect operation.

10. All high-voltage compartments have pressure-relief passages to protect personnel.

11. The front door contains observation windows to observe the working state of the indoor elements.