Start-Up; Maintenance Bypass Procedure; Returning The Purewave Ups System To The Ready State; Bypass Isolation Procedure - S&C PureWave Operation And Maintenance Manual

Start-Up

Maintenance Bypass
Procedure
Returning the
PureWave UPS System
to the Ready State
Bypass Isolation
Procedure
Following initial start-up, the PureWave UPS System operates automatically and does not
require manipulation of any controls to function properly.
In the event of an emergency shutdown, the system must be restarted by S&C Electric
Company service personnel or trained personnel in consultation with S&C Electric
Company.
The critical load will be connected to the utility via the bypass circuit breaker after following
this maintenance bypass procedure.
Make sure the safety guards located behind the switchgear bay door that protect personnel
against contact with energized parts are in place before performing these procedures.
Contact with energized parts can result in serious personal injury or even death. If safety
guards are not in place, secure the switchgear bay door and contact S&C Electric Company
at (888) 762-1100.
Use the following steps for the Maintenance Bypass procedure:
Disable the PureWave UPS system by turning the ENABLE/DISABLE selector
STEP 1.
switch to the Disable position. When the selector switch is moved to the Disable
position, the bypass circuit breaker will automatically close and, after a short
time delay, the output and input circuit breakers will open.
Step 2. Verify the PureWave UPS system's input and output circuit breakers are
STEP 2.
open and the bypass circuit breaker is closed. If the bypass circuit breaker did not
close and the input and output circuit breakers did not open, follow the system
emergency Bypass Isolation Procedure.
Use the following procedure to return the Pure Wave UPS System to the Ready state from
the Bypass state:
Verify the Pure Wave UPS System's input and output circuit breakers are open and
STEP 1.
the bypass circuit breaker is closed.
Enable the Pure Wave UPS System by turning the ENABLE/DISABLE selector
STEP 2.
switch to the Enable position.
Manually close the PureWave UPS System's output circuit breaker.
STEP 3.
Manually close the input circuit breaker.
STEP 4.
Reset the PureWave UPS System by pressing the RESET pushbutton.
STEP 5.
In the event the bypass circuit breaker does not close and the input and output circuit
breakers do not open after the maintenance bypass procedure has been implemented, the
PureWave UPS can be placed in the Bypass Isolate state via the following procedure:
Make sure the ENABLE/DISABLE selector switch is turned to the Disable
STEP 1.
position.
Manually close the bypass circuit breaker.
STEP 2.
The PureWave UPS System may be manually isolated from the utility source and critical
load via the following procedure:
Manually open the input and output circuit breakers.
STEP 1.
If necessary, contact S&C Electric Company at (888) 762-1100.
STEP 2.
NOTICE
NOTICE
WARNING
S&C Instruction Sheet 653- 502
Operation
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