Application scope of KYN28A-12 metal-enclosed switchgear

Release time:

2025-06-24

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Abstract

1. Power System Scenarios

  • Power Plant: Used for power distribution and control, as supporting equipment for generator outlets (supporting high current and high breaking capacity requirements).
  • Substation: As core equipment of the power transmission and distribution system, it realizes power reception, distribution, circuit control, protection, and monitoring.
  • Industrial and Mining Enterprises: Used for high-voltage power distribution systems, ensuring stable power supply for the production process (such as high-energy-consuming industries like metallurgy, chemical industry, and manufacturing).

2. Buildings and Infrastructure

  • Railway Transportation: Provides reliable power distribution and protection functions for rail transit power supply systems.
  • High-rise Buildings: In the power distribution centers of commercial complexes and office buildings, it realizes the distribution and safe control of high-voltage power.
  • Urban Power Grid: Used for the upgrading and transformation of urban distribution networks to meet the power demand of high-density load areas.

3. Special Functional Requirements

  • High-voltage Motor Starting: Supports frequent starting of high-power high-voltage motors (such as water pumps and fans), providing overload and short-circuit protection.
  • Overhead/Cable Incoming and Outgoing Lines: Supports various wiring methods (overhead lines, cable incoming and outgoing lines), adapting to the needs of complex power distribution networks.
  • Intelligent Expansion: Optional online temperature measurement, arc fault protection, and other intelligent functions are available, suitable for digital substations or smart energy management scenarios.

4. Environmental Requirements

  • Altitude Limit: Applicable to areas with an altitude ≤1000m; if the altitude >1000m, enhanced insulation measures need to be negotiated with the manufacturer.
  • Temperature Range: Ambient temperature -15℃~+40℃ (customized for special environments).
  • Humidity Requirements: Daily average relative humidity ≤95%, monthly average ≤90%.
  • Seismic Grade: Seismic intensity does not exceed 8 degrees.
  • Installation Location: No fire or explosion risks, no serious pollution, chemical corrosion, or severe vibration.

5. Configuration Flexibility

  • Circuit Breaker Adaptability: Supports various vacuum circuit breakers (such as domestic VS1, ABB VD4, Schneider EV12, etc.), meeting the needs of different users.
  • Current and Short-circuit Capacity: Rated current range 630A~3150A, short-circuit breaking capacity 16kA~50kA, suitable for diversified load scenarios in medium and high-voltage distribution systems.

Typical Application Cases

  1. Industrial Park Power Distribution Center: Provides high-voltage power distribution to multiple factory buildings, realizing centralized control and protection.
  2. Subway Substation: Provides a stable power supply for the rail transit power supply system, ensuring the safe operation of trains.
  3. Data Center High-voltage Power Distribution: Provides power supply for high-density IT equipment, ensuring power continuity and safety.

KYN28A-12 armored withdrawable metal-enclosed switchgear is widely used in various fields of power systems. Its good sealing and insulation performance enables the equipment to operate stably under harsh environmental conditions, effectively preventing moisture, dust, and small animals from damaging internal components. In addition, KYN28A-12 switchgear also has flexible incoming and outgoing line schemes to meet the individual needs of different users, making it an ideal choice for achieving power system automation and modernization.

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