Emerson NetSure 4015 DC Power System Guide de l'utilisateur télécharger pdf (Page 2)

SAG584000300 System Application Guide

Issue AB, April 5, 2013 NetSure™ 4015 30kW 400V DC Power System

Spec. No. 584000300 (Model 4015-X003)

Page 2 of 32

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Load Distribution Sub-Rack(s) (List 21-24)

The system may contain up to two (2) “load distribution sub-racks”, which provide DC

distribution through circuit breakers. Optional main row breaker required for UL

applications. Distribution can also be bulk with no “distribution sub-rack”.

Battery Tray(s) (List 91, 92)

The system may contain up to five (5) battery trays, each housing one (1) 400V

battery string consisting of twenty-eight (28) 12V battery blocks (336V nominal).

Customer supplied external battery strings can be connected to the system. The

total number of internal and external battery strings cannot exceed five (5).

IT Rack Integration (List R1, R2)

Choice of 24U or 42U rack, also includes factory installation, integration, and testing

of all selected components.

Available Grounding Configurations

HRMG (High Resistance Midpoint Ground) Configuration (+/- 200V DC)

The HRMG configuration provides system voltages to ground at half of the output

system voltage, for additional personnel safety. That is, the HRMG version of

400V DC produces +/-200V DC to ground potentials. This configuration is used in

applications where an internal high resistance path is required between the positive

output busbar and site ground and also the negative output busbar and site ground.

The DC bus is continuously monitored for ground fault conditions. If the insulation

resistance between the +BUS or -BUS to ground goes below a set value, a ground

fault alarm is generated. (Refer to UM584000300 [Operation Instructions] for

additional information on this topic.)

NPG (Negative Pole Ground) Configuration (+400V, -0V DC)

This configuration is used in applications where the negative output busbar is

required to be connected to site ground.

Complete Solution

(components factory installed

in an Emerson Network

Power DCM IT Rack)

Individual Components

1 2 3 4 5 6 7 ... 31 32

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Emerson NetSure 4015 DC Power System Guide de l'utilisateur Page 2

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