KYN28-12 (GZS1) Type armored removable AC metal enclosed switchgear (hereinafter referred to as "switchgear") is applicable to three-phase AC 50Hz power system to receive and distribute electric energy and control, protect and monitor power grid. The newly introduced high current and high breaking switchgear can also be used separately as the high-voltage generator outlet.
This product meets the standards:
GB3906 ( China standard) 3~35kV AC Metal Enclosed Switchgear.
GB/T 11022 ( China standard) Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards.
EC60298 ( China standard) AC Metal Enclosed Switchgear and Control Equipment with Rated Voltages above 1kV and below 50kV.
1. All metal assembly, modular assembly structure.
2. The switchgear body is made of imported aluminum zinc coated steel plate and processed by FMS flexible processing system.
3. Wide applicability, high reliability and maintenance free.
4. The handcart is equipped with working and test positions, and each position is equipped with positioning and display devices, which are safe and reliable.
5. Handcarts of the same specification can be interchanged freely with strong interchangeability. Advanced multiple folding process is adopted, and riveted nuts and high-strength bolts are used for connection.
6. The handcart is transported by a special carrier truck, which is easy and flexible to operate, with high precision, corrosion resistance, light weight, high strength and strong versatility.
7. Up to 9 single core cables can be installed in the cable compartment.
8. Reliable mechanical and electrical interlocking devices fully meet the requirements of "five prevention".
9. The high-pressure chamber has a pressure relief channel to ensure personal safety.
10. The switchgear door is equipped with an observation window to observe the working state of the components in the switchgear
| Item | Unit | Data |
| Rated voltage | kV | 3.6, 7.2, 12 |
| Rated frequency | Hz | 50 |
| Rated current of breaker | A | 630, 1250, 1600, 2000, 3150, 4000 |
| Rated current of switchgear | A | 630, 1250, 1600, 2000, 3150, 4000 |
| Rated short-time withstand current (4s) | kA | 16, 20, 25, 31.5, 40, 50 |
| Rated peak withstand current (peak value) | kA | 40, 50, 63, 80, 100, 125 |
| Rated short-circuit breaking current | kA | 16, 20, 25, 31.5, 40, 50 |
| Rated short-circuit closing current (peak value) | kA | 40, 50, 63, 80, 100, 125 |
Rated insulation level | 1 min Power frequency withstand voltage | Pole to pole, pole to pole time | kV | 24, 32, 42 |
| Interfracture (between open contacts) | kV | 24, 32, 48 |
| Lightning impulse withstand voltage (peak value) | Pole to pole, pole to pole time | kV | 40, 60, 75 |
| Interfracture (between open contacts) | kV | 46, 70, 85 |
| Protection level: housing IP4X, Compartment, when the circuit breaker compartment door open:IP2X |
Attn:
1. Short circuit capacity of current transformer shall be considered separately.
2. Technical parameters for ZN63A-12, see its relevant samples of our company.
3. Rated current of 3000~4000m above sea level type rated current≦1250A rated breaking current≦31.5KA.
1. Ambient air temperature: maximum temperature+40 ℃, minimum temperature - 15 ℃.
2. Humidity conditions:
Daily average relative humidity: ≤ 95%;
Monthly average relative humidity: ≤ 90%.
3. Altitude: 4000m and below.
4. Seismic intensity: no more than 8 degrees.
5. The surrounding air shall not be obviously polluted by corrosive or combustible gas, water vapor, etc.
6. Places without frequent violent vibration.
7. In case of use beyond the normal conditions specified in GB3906, the user and the manufacturer shall negotiate.
