KYN28 Armored Removable AC Metal-Enclosed Switchgear A
KYN28 armored removable AC metal-enclosed switchgear is designed for 3.6–12kV power systems, providing switching, control, and protection functions with withdrawable circuit breaker architecture and comprehensive mechanical-electrical interlocks for safe medium-voltage operation.
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The KYN28 cabinet consists of a metal-clad enclosure and a withdrawable truck unit, typically integrating vacuum circuit breakers, earthing switches, and instrument transformers. Its compartmentalized structure supports clear functional segregation and improves fault containment performance in generation, transmission, and distribution networks.
The equipment incorporates standard five-prevention interlocking philosophy, including anti-misoperation breaker control, anti-load truck movement, anti-live earthing switch closing, anti-energization in earthing position, and anti-entry into live compartments. Product design and testing align with GB3906 requirements for AC metal-enclosed switchgear and controlgear.