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The KYN28A-12 is a removable AC metal-enclosed switchgear designed for high voltage applications. With its robust construction and high-performance components, this switchgear provides reliable protection and control for electrical systems. It is ideal for use in outdoo...
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The KYN28A-12 is a removable AC metal-enclosed switchgear designed for high voltage applications. With its robust construction and high-performance components, this switchgear provides reliable protection and control for electrical systems. It is ideal for use in outdoor applications such as substations and power plants.

KYN28A-12(Z) armored removable AC metal closed switchgear (also known as GZS1 switchgear) is suitable for 3.6-40.5 kV three-phase AC 50Hz power system, which is applied to receive and distribute electric energy, and control, protect and monitor the circuit.
KYN28A-12(Z) type armored removable AC metal closed switch cabinet can prevent the following maloperation: maloperation of circuit breakers, push-pull closing with load, electrified closing of grounding switches. And prevent grounding switches from sending electricity when they are in the grounding position. The switch cabinet can be equipped with joint-venture vacuum circuit breakers such as VD4, HVX and 3AE, as well as domestic VS1 vacuum circuit breakers.




Technical Parameter
| No. | Name | Unit | Data | |
| 1 | Rated voltage (maximum operating voltage) | kV | 3.6 7.2 12 40.5 | |
| 2 | Rated frequency | Hz | 50 | |
| 3 | Rated current of circuit breaker | A | 630 1250 1600 2000 2500 3150 4000 | |
| 4 | Rated current of switch cabi-net | A | 630 1250 1600 2000 2500 3150 4000 | |
| 5 | Rated heat stable current (4s) | kA | 16 20 25 31.5 40 50 | |
| 6 | Rated dynamic stable current (peak) | kA | 40 50 63 80 100 125 | |
| 7 | Rated short circuit breaking current | kA | 16 20 25 31.5 40 50 | |
| 8 | Rated short circuit closing current (peak) | A | 40 50 63 80 100 125 | |
| 9 | Rated insulation level | 1min power frequency withstandvoltage | kV | 24 32 42 |
| Lightning shock withstand voltage | kV | 40 60 75 | ||
| 10 | Protection level | The shell is IP4X, and when the compartment and circuit breaker door are opened, it is IP2X |
| IP rating | IP4X/IP2X |
|---|
The KYN28-12 switchgear is available in three voltage options: 3.6kV, 7.2kV, and 12kV.
The rated current for the KYN28-12 switchgear ranges from 630A to 4000A.
The KYN28-12 switchgear has a protection level of IP4X/IP2X, providing high protection against dust and accidental contact.
Yes, the KYN28-12 switchgear is designed for outdoor use and is built to withstand harsh environmental conditions.
The KYN28-12 switchgear has a compact size of 800mm, making it efficient for space utilization in outdoor environments.
The KYN28-12 switchgear operates at a frequency of 50Hz, suitable for standard electrical systems globally.
The KYN28-12 switchgear is constructed with robust materials designed for high-voltage applications, ensuring durability and reliability.
The KYN28-12 switchgear is suitable for receiving and distributing electric energy, as well as controlling, protecting, and monitoring electrical circuits in substations and power plants.
The KYN28-12 switchgear can be equipped with joint-venture vacuum circuit breakers such as VD4, HVX, and 3AE, as well as domestic VS1 vacuum circuit breakers.
The KYN28-12 switchgear is designed to prevent maloperation of circuit breakers, including push-pull closing with load and electrified closing of grounding switches.
The KYN28-12 switchgear supports rated thermal stability currents of 16A, 20A, 25A, 31.5A, 40A, and 50A.
The KYN28-12 switchgear comes in a standard wooden case for secure transport and storage.
The lightning shock withstand voltage for the KYN28-12 switchgear is 40kV for the 3.6kV model, 60kV for the 7.2kV model, and 75kV for the 12kV model.
The KYN28-12 switchgear has a maximum operating voltage of up to 40.5kV.
The KYN28-12 switchgear is manufactured by Haloauth, a trusted name in high-voltage equipment.
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