第两百一十一章:巨大差距求月票)(第1 / 2页)
刚刚的变频只是模拟船舶在大洋中颠簸时,发电机状况不稳而发生的状况,结果雨航集团的整步仪直接就没承受住,烧毁报废了。
这就是奋进厂为了测试整步仪这类的电力设备,在导线回路中装了保护措施,否则光凭刚才的电流冲击,足以将两台价值极高的发电机给烧报废喽。
黄经理脸色很难看,因为刚才测试的整步仪正是他们厂生产的,以往他们厂的整步仪不是没经历过类似的测试,但从来没发生过这类想象,可今天却破天荒的来了这么一次,这让黄经理只觉得那张老脸火辣辣的。
金敬旺的脸也好不到哪儿,那声“噗~~”的爆炸声,跟扇在他脸上的耳光没啥区别,不过他却比黄经理要带些,毕竟他们自家的整步仪是啥德行,金敬旺还是很清楚的。
“这种整步仪使用的是自同步法。”
就在金敬旺两人觉得脸上挂不住时,甄嘉便指着刚才报废的整步仪介绍道:“用这个办法是,需将待并发电机的转数升高到接近于额定转速后,在不加励磁的情况下,先合上发电机的主开关,然后再加上励磁,利用自整步力矩的作用使发电机拉入同步。”
说着甄嘉顿了一下,随后才继续说道:“所以这种结构的优点显然易见,那便是操作简单、进入迅速,不需要增加复杂的并联设备。”
此话说完,甄嘉又遗憾的摇摇头:“只可惜,优点显而易见,缺点也更加明显,那便是在发电机合闸后,有大的电流冲击、转矩冲击以及电网电压的深度跌落,特别是在发电机组功率与电网功率差不多时尤为严重。
而在通常的船舶电站中,由于待并发电机的容量与运行发电机的容量几乎等同,因此这类结构的整步仪根本就不适用于船舶使用,更明确切的说,这就是一类早已被淘汰的技术。”
甄嘉还未说完,黄经理就羞愧的低下了头,他们厂就是生产整步仪的,哪里还不知道甄嘉说的都是对的。
可他们为什么还要跟韩方合作,甚至不惜把技术更好的老整步仪停掉,还不是看中中外合资的名头,要知道这年头为了吸引外资,国家对合资企业的优惠那叫一个大,不但在税收、土地、资源以及投资商给予合资企业相当大的让利,在舆论上也为合资企业不断造势。
正因为如此,一旦某家厂子成为合资企业,那地位身家就全部一样的,不但去哪儿都高人一等,利用国家的优惠政策,也让这些企业有很大的套利空间。
所以不少厂子为了能获得这个名头根本就不管合作的外商有没有实力,只要能合上就行。
黄经理的厂子显然就属于这个情况,韩国的整步仪怎么样他们不清楚吗?自然是清楚,可那又怎样?合资企业能给他们带来更大的好处,生产差的整步仪又有什么打紧的?
更何况,这种差的整步仪卖的得更好,赚得更多,自然要大大生产才是。
想到这里,黄经理似乎意识到了什么,偏过头看向身旁的金敬旺,却发现此刻的金敬旺并没有太多愤怒的意思,尽管脸上也带着被人拆穿把戏的不甘,可总体上比他要淡定的太多。
而此时,湘西厂生产的整步仪早已被工作人员安装到两台发电机之间,随着操作员按下启动开关,柴油机运转,带动发电机发电,紧接着操作员合闸,电流并联,整步仪开始工作。
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