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ZJD-3型不间断电源 性能:该设备的交流部分采用最新SPWM技术支持的逆变器;多路组合的直流电源采用准谐振式高频开关技术;一次电源采用具有PFC电路的、可自动均流的高频模块;同时还采用了计算机控制的遥信、遥测技术,使该设备具备了完善的检测、保护功能。交流输入电压165～275V,交流输出电压220V±5％;交流输出频率50Hz±1Hz。直流输出电压稳定度:原效应小于0.1％,负载效应小于0.5％;输入功率因数大于0.95;一次电源效率大于85％;交流输出谐波失真小于等于10％。自流输出杂音。衡重杂音小于等于2mV,峰-峰杂音小于等于100mV;绝缘电阻大于等于25mΩ;音频噪音小于等于55dB。应用:该设备是为铁路中间站通信设备提供的稳定、不间断的交、直流在线式电源,该电源可为用户提供不同容量、不同电压的多路交、直流组合,其卓越的切换和自动保护功能,可以使设备连续、自动、稳定地运行,并且可以无人值守。单位:天津铁路分局天津通信段 总工程师:张文宾
ZJD-3 type uninterruptible power supply performance: the exchange part of the device uses the latest inverter SPWM technology support; multiplexed DC power quasi-resonant high frequency switching technology; a power supply with a PFC circuit can automatically Flow of high-frequency module; also uses a computer-controlled telemetry, telemetry, so that the device has a perfect detection, protection. AC input voltage 165 ~ 275V, AC output voltage 220V ± 5%; AC output frequency 50Hz ± 1Hz. DC output voltage stability: the original effect of less than 0.1%, load effect of less than 0.5%; input power factor greater than 0.95; primary power efficiency greater than 85%; AC output harmonic distortion less than or equal to 10%. Self-flow output noise. Weighing noise is less than or equal to 2mV, peak-to-peak noise is less than or equal to 100mV; Insulation resistance is greater than or equal to 25mΩ; Audio noise is less than or equal to 55dB. Application: The equipment is a stable, uninterrupted AC and DC online power supply for the railway station communication equipment. The power supply can provide users with multiple AC and DC combinations with different capacities and different voltages. Its excellent switching and automatic Protection features that keep the device running continuously, automatically, and consistently, and are unattended. Unit: Tianjin Railway Branch Tianjin Communications Chief Engineer: Zhang Wenbin