ABB HiPerGuard MV UPS User Manual page 69

The power flow in the MV UPS block is categorized into four block states
System states
SLD
Figure 7.8: Power flow SLD categories on GDM
7.1.4. System view
This screen is functional only for the MV UPS system with two up to ten UPS blocks connected in hard
parallel. Similarly, to the main screen, it shows input and output voltage measurements but at system
level as well as load contribution in KVA.
The system diagram displays the status of each MV UPS block, voltage of its energy storage, and the
position of the S (common for all UPSs connected in hard-parallel). Block Health can be identified by
abp
using the fill color. Fill color is none if UPS block is healthy and fill color YELLOW is used for 'Warning'
whereas RED is used to show faulty UPS blocks.
Also, the system diagram provides the status of the input breaker and output breaker of each UPS block.
Depending on the fill color it is possible to identify the health of the breaker. The fill color is none if the
breaker is healthy. Fill color YELLOW is used for 'Warning' whereas RED is used to identify for faulty
breaker.
A "Start/Stop" button is available on the bottom right side of the screen. When activated, this button
will Start/Stop single block or all UPSs simultaneously as soon as the blocks are ready to operate. The
function is available on all GDMs which are part of the same UPS system.
This is a convenient way to control (Start/Stop) a single block or the system through a single command.
If the "STOP" is pressed GDM will show a confirmation message as shown in Figure 7.9 asking to select
whether STOP this single 'BLOCK' or STOP the entire 'SYSTEM'. Users can confirm the STOP operation by
selecting 'STOP', 'STOP system' or can select cancel to return on the confirmation window. Figure 7.10
and Figure 7.11 show the STOP confirm dialogue boxes for entire system and block stop respectively.
HI PE RG UA RD M V UP S U S E R M A N UA L
Bypassed Starting/
Stopping
U S E R I NT E R FA CE
Power Independent
Conditioning
Mode
Mode
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