Bypass Operation

During bypass operation, the critical load is supplied directly by utility power. A single-line diagram will appear on the screen with an orange line indicating the power flow through the Bypass SSW to the load.

CAUTION!

Do not open Q2 or Q5 when the UPS is in bypass operation, as this action may result in a load drop or a failure of the UPS to support the load.

Bypass Static Switch

Delta inverter

Main inverter

Battery

Breaker Identification

Q1

UPS input breaker

Q5

Static bypass input breaker

 

 

 

 

Q2

UPS output breaker

Q7

Battery breaker 1

 

 

 

 

Q3

Manual bypass breaker

Q8

Battery breaker 2

 

 

 

 

Only operate a breaker when the associated breaker lamp is on.

Note

Symmetra® MW with Internal Bypass Static Switch - User Guide - 990-1756A-001

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American Power Conversion Bypass Static manual Bypass Operation