2.3 电源模件—型号
V9 Tricon机架上装有下列电源模件之一：
型号# 电源模件
8310 120VAC/VDC
8311 24VDC
8312 230VAC
每层机架有两个电源模件，每一个电源都足以支持本层机架的全部电源需求。电源模件可以在线更换,并可视作热备。
本节提供下列有关电源模件的信息：
—物理叙述
—特点
—报警描述
—规格
图2-5 主/扩展电源模件
图中：①电源模件用的连接条（位于电源模件的上方，背板上）
注:为标示端子条及标识,图中未显示在危险地区必需使用的盖板.
2.3.1 物理描述
电源模件，位于机架的左下方（见图2-1和2-2），把外部电压转换成适合各Tricon模件使用的DC电源。
两条电源模件用的接线条装在背板的面板部分的左下侧处（见图2-5）。一根接线条用于选定系统的接地方案，另一条用于电源引入线和报警连接。
每个电源模件上备有供每个外部电源用的在线缓燃保险，装在模件之内。需要换模件时，不需要折卸任何接线或卸掉电源模件—只要把模件从机架上卸下即可。
2.3.1.1 系统接地选择的接线端
电源模件上部的背板上有三个供接地选择的端子：
—连接到机架地的RC网络（RC）
—直接连接到Tricon内部信号地（ 功能地）
—直接连接到机架地（ ，保护接地）
通常，Tricon在发货时带有足线，装在RC和信号地（ ）之间。您可以把这个跳线取掉而使用别的接地方式。进一步的资料可阅4.2节，“Tricon的正确接地”。
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NEW-GENERAL ELECTRIC 20A 3P EM3T-1M BREAKER TED134020 M-29G
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new STAINLESS STEEL 30/50/60A ROUND RECIPTICLE COVERS
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Cutler Hammer 15 AMP Breaker EM3T-1M FC3015, 600 volts D-31
WESTINGHUSE 15 AMP CIRCUIT BREAKER FB3015 H-10
Westinghouse 100 AMP Breaker FB31550ML H-13
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NEW-Siemens Circuit Breaker HED43B040L 40A 480 V RR-41
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SQUARE D 15 AMP GF BREAKER THQL1115GF
BUSSMAN 400 AMP DE TIME DELAYED FUSE FRS-R-400 FS-22
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Airpax 3 Pole Circuit Breaker 100 AMP. 480V AA-23
SQUARE D 3 POLE 60 AMP BREAKER QO360 L-46
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Westinghouse Seltronic Breaker MC3800F 600A TRIP I-30
