1. Product Description
      The 11kV Incoming Feeder Panel is a modular, metal-enclosed switchgear assembly integrating vacuum circuit breakers (VCB), disconnectors, current/voltage transformers, protective relays, and intelligent monitoring systems. Its compartmentalized design segregates breaker, busbar, cable, and control zones per IEC arc-flash safety standards (IAC AFLR certified). Core capabilities include power intake, short-circuit interruption, overload protection, and earth fault detection, with SCADA connectivity via IEC 61850 protocol. Typical deployments span oil & gas facilities, data centers, mining operations, and urban grid networks, with operational tolerance from -25°C to +55°C.

2. Product Functions
      Power Distribution: Securely routes 15KV-12KV-11kV-10KV supply to downstream transformers or busbars.
      Protection Schemes: Microprocessor-based relays for overcurrent, instantaneous trip, earth leakage, and undervoltage protection.
      Safety Interlocks: Mechanical blocking mechanisms prevent live switching operations.
      Condition Monitoring: Real-time measurement of current, voltage, and power quality parameters with Modbus/DNP3/IEC 61850 communication.
      Event Recording: Fault waveforms and sequence-of-events (SOE) logging for diagnostics.
      Modularity: Optional metering, capacitor bank, or grid synchronization modules.

3. Product Configuration
      Circuit Breaker: Vacuum or SF6 type with spring-operated/motorized mechanism.
      Instrument Transformers: Epoxy-resin encapsulated CT/PT (0.2/0.5 class accuracy).
      Protection Relay: Numerical relays (e.g., Siemens 7SJ82, ABB REF615).
      Enclosure: Galvanized steel/stainless steel with corrosion-resistant coating.
      Ancillaries: Space heaters, LED lighting, hygrothermal controllers.
      Options: HMI touchscreen, wireless temperature sensors, surge arresters.

4. Product Features
      High Availability: Vacuum interruption technology, 10,000 mechanical operations lifespan.
      Smart Grid Ready: Remote condition monitoring and predictive maintenance capabilities.
      Space Optimization: Compact footprint for constrained installations.
      Eco-Design: SF6-free alternatives (VCB) meeting RoHS directives.
      Customization: Tailored dimensions, RAL color codes, and functional modules.
      Interoperability: Multi-vendor protection device integration support.

1. Rated Parameters
      Rated Voltage: 15kV，12kV, 11kV, 10kV
      Maximum Operating Voltage: 12kV
      Rated Current: 630A, 1250A, 1600A, 2000A, 2500A, etc. (varies by model)
      Rated Frequency: 50Hz/60HZ

2. Insulation & Withstand Voltage
      Power Frequency Withstand Voltage (1min): 42kV
      Lightning Impulse Withstand Voltage (Peak): 75kV

3. Short-Circuit Withstand Capability
      Rated Short-Time Withstand Current (4s): 16kA, 20kA, 25kA, 31.5kA, 40kA, 50kA, etc.
      Rated Peak Withstand Current: 40kA, 50kA, 63kA, 100kA, 125kA

4. Structural Features
      Protection Level: IP4X (standard)
      Enclosure Type: Metal-clad withdrawable (e.g., KYN28-12), fixed type (e.g., XGN2)
      Busbar Rated Current: 630A ~ 3150A

5. Environmental Adaptability
      Altitude: ≤2000m (requires high-altitude adaptation beyond this)
      Ambient Temperature: -20℃ ~ +40℃ (heating required below -5℃)
      Relative Humidity: ≤90% (at 25℃)

6. Other Key Features
      Five-Protection Function: Prevents misoperation of circuit breakers, access to live compartments, etc.
      Circuit Breaker Type: Vacuum circuit breaker (compliant with IEC 56 standard)
      Mechanical Life: 20,000 operations (for circuit breakers)
      For more detailed specifications (e.g., KYN28-12, XGN2) or custom parameters, please refer to the manufacturer’s technical documentation.