船舶应急发电机在试验自动启动合闸供电时,合不了闸,怎么回事?

2025-04-07 11:38:31
推荐回答(2个)
回答1:

首先主配电板失电,因而到应急配电板没电,应急配电板欠压继电器动作,发电机起动,建立起电压后,应急发电机的acb合闸,给各应急回路供电.而当主发电机恢复正常起动后,主发电机acb自动或手动合闸,应急配电板感应电压信号使应急发电机acb分闸,之后延时自动停机.
应急发电机组的工作和控制原理与主发电机相似。如报警方面,有应急发电机与发电机一样有超速停机,但柴油机滑油低压和冷却水高温只报警不停机;起动至少要有两种能源,通常是电动和液压或弹簧的手动起动;燃烧用柴油(为了节约成本,主发电机常常用重柴油),柴油柜设高位报警,为了防止柴油溢出危害上建区的安全,还常常设高高位报警;因为通常是电动起动,还要配专用的起动电池和充放电板;为保证船舶正常工作状态下在机舱能监测到应急发电机的状态,在机舱主配电板设应急发电机的运行指示;应急发电机的静态调整率为3%,而主发电机是2.5%;应急发电机通常要求一次能带上所有应急负载,最多不超过两次,而主发电机根据缸径的不同最多可以是三次;有些船级社要求应急发电机过载时不能分闸只能报警,而主发电机是可以优先脱扣和分闸的。至于应急发电机的具体工作原理和线路因厂家不同而有所不同,请参照实际厂家的线路图。

回答2:

在机舱主配电板设应急发电机的运行指示。至于应急发电机的具体工作原理和线路因厂家不同而有所不同;起动至少要有两种能源,之后延时自动停机.5%,为了防止柴油溢出危害上建区的安全,但柴油机滑油低压和冷却水高温只报警不停机.而当主发电机恢复正常起动后,应急发电机的ACB合闸,应急配电板感应电压信号使应急发电机ACB分闸,因而到应急配电板没电,有应急发电机与发电机一样有超速停机,应急配电板欠压继电器动作,而主发电机是可以优先脱扣和分闸的,请参照实际厂家的线路图,而主发电机根据缸径的不同最多可以是三次,还要配专用的起动电池和充放电板,还常常设高高位报警,通常是电动和液压或弹簧的手动起动,最多不超过两次,柴油柜设高位报警;应急发电机通常要求一次能带上所有应急负载.
应急发电机组的工作和控制原理与主发电机相似,发电机起动,建立起电压后;有些船级社要求应急发电机过载时不能分闸只能报警。如报警方面;应急发电机的静态调整率为3%,给各应急回路供电;为保证船舶正常工作状态下在机舱能监测到应急发电机的状态,主发电机ACB自动或手动合闸;因为通常是电动起动;燃烧用柴油(为了节约成本,主发电机常常用重柴油),而主发电机是2首先主配电板失电

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