Emerson netsure 9500, Руководство по эксплуатации, Страница: 13 / 22

NetSure ™ 9500 120kW 400V DC Power System
Operation Manual, UM584001200 (Issue AA, April 14, 2014)
Spec. No: 584001200 Code: UM584001200
Model No: 9500 Issue AA, April 14, 2014
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Adding a Circuit Breaker to a List 21HA Distribution
Panel
Danger! Hazardous DC voltage (400V DC) is present.
The distribution panel MUST be completely isolated
from all power sources.
Refer to Figure 2 as this procedure is being performed.
PROCEDURE
1. Power down and isolate the distribution panel from all
power sources.
2. Refer to Figure 2 and attach the leads provided with the
circuit breaker to the appropriate circuit breaker
terminals. The leads are to be oriented so they exit the
rear of the circuit breaker. Note that the DC load
distribution leads are terminated in a 2-hole lug and the
DC input bus leads are terminated in a single-hole lug.
Note also that the positive leads are red and the negative
leads are black. Torque these connections to 62 in-lbs (7
Nm).
3. Remove the respective distribution position’s blank cover
from the distribution panel’s top or bottom front cover.
4. Remove the distribution panel’s top or bottom front
cover to access the circuit breaker wiring by removing
the screws securing the cover to the distribution panel.
5. Place the circuit breaker into its mounting position,
feeding the attached leads to the rear of the distribution
panel. Orient the ON/OFF positions as shown in
Figure 2 .
6. Secure the circuit breaker leads as shown in Figure 2 .
Torque the DC input bus leads to 66 in-lbs (7 Nm).
Torque the DC load distribution leads to 66 in-lbs (7 Nm).
7. Replace the distribution panel’s top or bottom front
cover. Secure the cover to the distribution panel.
8. Place each circuit breaker to the OFF position.
9. Connect all power sources to the distribution panel.
10. Place each circuit breaker to the ON position.
11. Ensure that there are no local or remote alarms active on
the system.
Maintenance
Contact Emerson Network Power for all of your maintenance
needs.
Important Safety Instructions
Danger! Adhere to the “Important Safety Instructions”
presented at the front of this document.
System Maintenance Procedures
Danger! The system MUST be completely powered
down and isolated from all power sources (AC and
battery) before any maintenance procedure is
performed, or use full PPE protection for arc flash.
It is recommended to perform the maintenance procedures listed
in
Table 1 every 12-months to ensure continual system operation.
Table 1. Maintenance Procedures to be Performed at 12-Month
Intervals
Check Procedure
Ventilation Openings
Check ventilation openings for
obstructions such as dust,
papers, manuals, etc.
Grounding Connections
Inspect the HDU ground
termination, tightness of all
lugs on the master ground bar
and equipment sub-racks, and
low ohmic values to the
facility ground per local
practice.
AC Input Connections
Inspect the AC input mains
terminations for proper
temperature and/or torque
values.
DC Load Connections
Inspect the DC load breaker
wiring for proper temperature
and/or torque values.
Battery Connections
Inspect the battery lead
terminations for proper
temperature and/or torque
values.
Recommended Battery Maintenance
Refer also to the Battery Cabinet Installation and Operation
Instructions (IM58400120090).
Danger
Danger
Danger