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KYN28-12 series metal-clad withdrawable switchgear
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Product Details
Product Introduction
The KYN28-12 high-voltage switchgear is a metal-clad, withdrawable indoor switchgear used in three-phase single-busbar and busbar sectionalizing systems with an AC frequency of 50Hz, rated voltage of 3-10kV, and rated current below 3000A. It is used for receiving and distributing electrical energy. This switchgear has a complete five-prevention device and is suitable for various power plants, substations, and industrial and mining enterprises.
Model and Meaning
Product Application Range and Uses
This product is suitable for 3-12kV three-phase AC 50Hz single-busbar and double-busbar sectionalizing systems for receiving and distributing electrical energy. Its consistent structure, high safety and reliability, and simple operation make it widely applicable in the power, metallurgy, petrochemical, and urban construction industries.
Normal Operating Environmental Conditions
● Ambient temperature: Not higher than +40℃, not lower than -25℃
● Altitude: Not higher than 1000m
● Relative humidity: Daily average not more than 95%; monthly average not more than 90% (+25℃)
● Seismic intensity: Not exceeding 8 degrees
● No flammable gases, explosion hazards, severe pollution, chemical corrosion, or frequent violent vibrations.
Technical Parameters
| Item | Unit | Data | |
| Rated Voltage | 12 | ||
| Rated Insulation Level | 1min Power Frequency Withstand Voltage | kV | Phase-to-phase, phase-to-ground 42; break 48 |
| Lightning Impulse Withstand Voltage (Peak) | kV | Phase-to-phase, phase-to-ground 75; break 85 | |
| Rated Frequency | Hz | 50 | |
| Rated Current | A | 630 1250 1600 2000 3150 | |
| Rated Peak Withstand Current | kA | 50 63 80 100 | |
| Rated Breaking Current | kA | 20 25 31.5 40 | |
| Rated Thermal Stability Current | kA | 20 25 31.5 40 | |
| Rated Thermal Stability Time | S | 4 | |
| Control Voltage | V | DC220/110 | |
| Protection Level | IP4X | ||
| Dimensions (Width x Height x Depth) | mm | 800x1600x2200 | |
| Weight | kg | 800~1200 | |
Keywords: KYN28-12 series metal-clad withdrawable switchgear
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