KYN28 cabinet is a high-voltage switchgear, with specific information as follows: Application scope: KYN28柜适用于三相交流50Hz单母线和双母线分段系统的户内成套配电设备。适用于额定电压3-12kV电网的发电厂、变电站、工矿企业。它用于接收和分配电能，以及控制、保护和监控电路。 Structural features: The KYN28 cabinet consists of a fixed cabinet body and a movable vacuum circuit breaker handcart. The cabinet body is divided into four small chambers: busbar chamber, circuit breaker chamber, cable chamber, and low-voltage chamber. The cabinet structure is made of aluminum zinc coated plate processed by CNC machine using multiple bending processes and bolted together; All operations are carried out with the cabinet door closed; High protection level, which can prevent the invasion of debris and pests; Simple and effective “five prevention” locking to prevent misoperation. Can be equipped with VS1 and VD4 vacuum circuit breakers; Replacing the circuit breaker is simple, and the handcart has good interchangeability performance; Reliable wall installation and front maintenance of cabinets to reduce floor space; The cable room has ample space and can connect multiple cables; Heaters can be installed separately in the circuit breaker room and cable room to prevent condensation and corrosion. Technical parameters: 额定电压：3.6kV~12kV。额定频率：50Hz。断路器额定电流：630A、1250A、1600A、2000A、2500A、3150A、4000A。额定短时耐受电流 （4s）：25kA、31.5kA、40kA。额定峰值耐受电流（peak）：63kA、80kA、100kA。额定短路开断电流：25kA、31.5kA、40kA。额定短路闭合电流（峰值）：63kA、80kA、100kA。 Environmental conditions for use: 海拔高度不得超过 2000m。最高温度为 +40 °C，最低温度为 -5 °C（室外）。环境相对湿度：日平均不超过95%，月平均不超过90%。地震烈度不得超过 8 度。应避免振动、冲击和强腐蚀性环境。 Compliance with standards: KYN28 机柜符合 IEC298 和 GB3906 等技术标准。