KYN28-12(GZS1) Armored Withdrawable AC Metal-Enclosed Switchgear
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Category:
Keywords:
High-Voltage Switchgear
Box-type substation
- Product Description
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Product Overview
This product meets the requirements of standards such as IEC 298 and GB 3906, featuring interlocking functions that prevent the operation of circuit breaker trolleys under load, avoid unintended tripping or closing of circuit breakers, block the closing of circuit breakers when the grounding switch is in the closed position, prevent accidental entry into live compartments, and ensure the grounding switch cannot be closed while energized. It is compatible with ABB’s VD4 vacuum circuit breakers, Xiamen Huadian VEP, Siemens 3AH, Schneider EV-12, and GE VB2 circuit breakers, as well as domestically produced VS1 vacuum circuit breakers—making it a highly reliable and superior-performing distribution device.
Meaning of the Model
Technical specifications
Project Unit Data Rated Voltage kV 3.6, 7.2, 12 Rated Insulation Level 1-minute power frequency withstand voltage kV 24, 32, 42 Lightning Impulse Withstand Voltage kV 40, 60, 75 Rated frequency Hz 50 Rated current A 630, 1250, 1600, 2000, 2500, 3150 Rated Thermal Current (RMS/s) kA 25/4, 31.5/4, 40/3 Rated Dynamic Stability Current (Peak) kA 63, 80, 100 Protection Level The enclosure is rated IP4X; the circuit breaker door, when open, provides an IP2X rating. External Dimensions and Mounting Size
Project Dimensions/Weight Height (mm) The branch busbar's rated current reaches 1250 A. 2300 (2200) Width (mm) Thermal stable current: 31.5 kA 800 (650) Busbar rated current exceeding 1600A 1000 Depth (mm) Cable entry and exit 1300, 1500 Overhead incoming and outgoing lines 1660 Weight (kg) 800–1200 
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