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S&C Instruction Sheet 653-506   

33

Maintenance

Follow these steps for each PureWave UPS System enclosure battery bay:

 

q

Enclosure #: _______________          Battery Bay #: _______________

 

q

Inspect the top and bottom hydrogen vents located along the inside wall of the bay. Clean 
any debris or obstructions that can restrict air flow. See Figure 15 for the location of the 
hydrogen vents.

Hydrogen vent 
(top)

Hydrogen vent 
(bottom)

Figure 15.  Location of the hydrogen vents in the battery bay.

Inspect the air conditioners at the top of the battery bay. Clean any debris or obstructions 
that can restrict air flow. See Figure 16 for the location of the air conditioners. 

Air conditioner

Figure 16.  Location of an air conditioner on top of the battery bay.

 

q

Inspect the general interior of the bay and verify the bay is clean. Use a vacuum cleaner 
to perform general cleaning, if necessary.

Verified By:_________________________  Date: ___________

Summary of Contents for PureWave

Page 1: ...Components and Controls Enclosure 11 Power Electronic Switch and Switchgear Enclosure 14 Doors 16 Air Control and Ventilation 16 Operating Controls 17 Monitoring Computer 17 Operation System Operation 18 Operating States 18 Transition States 19 Contacts 19 Remote Disable Optional 19 Operating Modes and Procedures 20 Maintenance Bypass Procedure 20 Returning the PureWave UPS System to the Ready Sta...

Page 2: ... other employees If doors to the electrical controllers or panels to the system enclosure must be opened refer to the instruction sheet for procedures for guarding against electric shock Lockout and tagout procedures should be developed and implemented in accordance with 29 CFR 1910 147 Proper Application WARNING The equipment in this publication must be selected for a specific application The app...

Page 3: ...heet and need assistance contact your nearest S C Sales Office or S C Authorized Distributor Their tele phone numbers are listed on S C s website sandc com or call S C Headquarters at 773 338 1000 in Canada call S C Electric Canada Ltd at 416 249 9171 NOTICE Read this instruction sheet thoroughly and carefully before installing or operating your S C PureWave UPS System Replacement Instructions and...

Page 4: ...h voltage Keep out PE 70236 C DANGER Hazardous voltage PE 70315 D DANGER Keep out Risk of electric shock PE 70323 Location of Safety Labels Front of the Enclosure NOTICE For safety labels contact S C Electric Company for the following Exact location of the standard safety labels Project specific safety labels Instructions on how to replace labels reference the label part numbers as shown below A A...

Page 5: ...eet 653 506 5 Inside of Doors Rear of the Enclosure Battery bay door Power conversion module section door Ac filter capacitor section door Control bay left door Control bay right door Safety Information A B C C C C D C A ...

Page 6: ...oundry 42 inch Limited Appro ach 12 inch Restricted App roach 500 V Class 00 Gloves E quipm ent Nam e PES 2 6 7 cal cm Flash Hazard at 18 inches Cat 2 PPE Level FR SHIRT PANTS COTTO N UNDERWEAR 480 VAC Shock Hazard when Co ver is remo ved 1 inch Prohibited Appro ach 500 V Class 00 Gloves 58 inch Flash HazardBoundry 42 inch Limited Approach 12 inch Restricted App roach 500 V Class 00 Gloves E quipm...

Page 7: ...azard when Co ver is remo ved 1 inch Prohibited Appro ach 500 V Class 00 Gloves 58 inch Flash HazardBoundry 42 inch Limited Approach 12 inch Restricted App roach 500 V Class 00 Gloves E quipm ent Nam e PES 2 E F G G Rear of the power electronic switch enclosure 6 7 cal cm Flash Hazard at 18 inches Cat 2 PPE Level FR SHI RT PANTS COTTO N UNDERWEAR 480 VAC Shock Hazard when Cover is removed 1 inch P...

Page 8: ...ISCONNECT UPS BEFORE SERVICING CAUTION RISK OF ELECTRICAL SHOCK SCR HEAT SINKS ARE LIVE DISCONNECT UPS BEFORE SERVICING CAUTION RISK OF ELECTRICAL SHOCK SCR HEAT SINKS ARE LIVE DISCONNECT UPS BEFORE SERVICING N J M S C PureWave UPS System CATALOG NUMBER SE R IAL NUMBER DATE OFMANUFACTURE VOLTAGE RATI NG CAPACI TY R ATI NGS AMPERES FREQUENCY PHASE SHORT CI RCUIT RATINGS AMPERES RMS SYMMETRIC AL Cau...

Page 9: ...F36 F38 F29 F24 F33 F32 FUSE INFORMATION F23 15A 125 VAC FNM 15 F24 4A 250VAC FNM 4 F25 15A 125VAC FNM 15 F26 4A 250 VAC FNM 4 F29 2A 250 VAC FNM 2 F32 2A 250 VAC FNM 2 F33 20A 250 VAC TRM 20 F34 4A 250 VAC FNM 4 F35 4A 250 VAC FNM 4 F36 4A 250 VAC FNM 4 F37 4A 250 VAC FNM 4 F38 4A 250 VAC FNM 4 SS1 MAINTENANCE NORMAL THE BYPASS CIRCUIT BREAKER AND INPUT OUTPUT BUSBAR CIRCUITS REMAIN ENERGIZED DUR...

Page 10: ...mechanism or circuit breakers or remove dead front access panels on the PureWave UPS System unless directed by S C Electric Company 6 ENERGIZEDCOMPONENTS Always consider all parts live until de energized tested and grounded 7 GROUNDING The PureWave UPS System enclosure must be connected to a suitable earth ground or to a suitable building ground for testing before energizing the unit and at all ti...

Page 11: ... power connected The enclosure is meant to provide access for field troubleshooting purposes only when properly grounded Never under any circumstances open the enclosure doors while it is online or has not been fully discharged and grounded Failure to do this can result in equipment damage personal injury or even death Air conditioner Transformer bay air outlet hoods Transformer bay rear of enclos...

Page 12: ...bay Transformer bay Battery bay Each battery bay contains a 250 kW battery module and a power conversion module PCM section The PCM section contains the PCM which is comprised of one inverter module consisting of power conversion electronics and controls The PCM is panel mounted and supported by a welded and bolted steel structural base See Figure 3 for a view of the battery bay Battery Power conv...

Page 13: ...and ac filter capacitor section Inside of the control bay is a control panel which has a RESET pushbutton an HVAC TEST pushbutton a CPC connector and an ENABLE DISABLE switch See Figure 4 for a view of the control bay Ac filter capacitor section Control panel Figure 4 View of the control bay with the doors open Transformer bay The transformer bay which is located at the rear of the enclosure house...

Page 14: ...tem and vice versa The bypass circuitry is also housed in this enclosure which consists of a source circuit breaker a load circuit breaker and a bypass circuit breaker See Figure 6 See Figures 7 and 8 on page 15 for the location of the other main components of the enclosure Control panels Air conditioner Source circuit breaker Bypass circuit breaker Load circuit breaker Figure 6 Power electronic s...

Page 15: ...lectronic switch PES and switchgear enclosure right side view Cooling air outlet Cooling air inlet Figure 8 Power electronic switch PES and switchgear enclosure rear view with doors removed Cooling fans Power electronic switch Components and Controls ...

Page 16: ...ed and secure the door handle NOTICE To open the control bay door the ENABLE DISABLE keylock needs to be unlocked which would result in disabling the system Air Control and Ventilation Components such as air conditioners and air inlet and outlet vent vent hoods are used to regulate the air inside the enclosure Periodic maintenance is required to ensure the air conditioners air inlet filter vents a...

Page 17: ...lity to the load though the bypass circuit breaker The bypass circuit breaker will be closed and the input and output isolation circuit breakers will be opened RESET This pushbutton allows the operator to manually reset the system alarm s When the system is in the Bypass state and the RESET pushbutton is pushed all latched alarm s will be reset if the alarm s have cleared HVAC TEST This pushbutton...

Page 18: ...em Figure 10 Diagram of the PureWave UPS System Operating States Listed in Table 1 are the operating states of the PureWave UPS System Depending on the alarm condition encountered the system can be in any of these states The user interface shall inform the user of the system s present state Table 1 lists and describes each state Table 1 Operating States for the PureWave UPS System States Descripti...

Page 19: ...t voltage is not in phase with the utility voltage The loads will be permitted to decelerate before being re energized Contacts The following alarm contacts are available as standard for the PureWave UPS System and can be used to activate a customer supplied device System Warning The System Warning contact will annunciate upon any warning alarm Warning alarms indicate a condition that requires att...

Page 20: ... PureWave UPS System to the Ready State The following procedure provides the means for returning the PureWave UPS System to the Ready state from the Bypass state STEP 1 Verify the input and output circuit breakers are open and the bypass circuit breaker is closed STEP 2 Re enable the PureWave UPS System by turning the ENABLE DISABLE selector switch STEP 3 Reset the PureWave UPS System by pressing ...

Page 21: ...l commands the transfer switch to start the generator and transfer to the generator after the generator is at rated voltage and frequency The PureWave UPS System will actuate the transfer signal after the system has been running for 5 to 10 seconds 5 seconds at full load 10 seconds at half load or less Following is a sequential listing of events that occur during an outage of more than 5 seconds a...

Page 22: ...CB Over Current Indicates one of the bypass or isolation circuit breakers tripped because of an overcurrent Troubleshooting Tip After verification and gathering information on the states leading the system to this fault reset the system and verify the fault clears If problem persists contact S C Electric Company Charger Start Alarm Indicates the charger has not turned on as expected Troubleshootin...

Page 23: ...er or a malfunctioned blower Check these components to make sure they are clean and functioning properly PES Over Temperature Indicates the PES is at 100 C 212 F or higher Troubleshooting Tip This could be caused by restricted air flow caused by a dirty or obstructed air filter or a malfunctioned blower Check these components to make sure they are clean and functioning properly Smoke Warning Indic...

Page 24: ...Tip The system will respond based on the overvoltage settings The voltage threshold can be changed if desired Utility Under Freq Indicates the system is sensing a utility frequency more than 1 5 Hz below the nominal frequency Troubleshooting Tip The system will respond based on the under frequency settings The frequency threshold can be changed if desired Utility Under Voltage Indicates the system...

Page 25: ...ge frequency or phase rotation is bad the inverter may not be able to lock to the utility until the voltage and frequency are both within tolerance Parallel Bd Comm Err Indicates the parallel board communication is delayed or interrupted Troubleshooting Tip Contact S C Electric Company Reverse Phase Rotate Indicates the phase rotation of the utility and or load conductors is not correct Troublesho...

Page 26: ...g to the fire Neutral Res Voltage Indicates a system neutral or module fault Troubleshooting Tip Contact S C Electric Company Open PES Alarm Indicates the PES is expected to close but does not Troubleshooting Tip The system will automatically reset three times After the third time if the PES is still open contact S C Electric Company Operation Disabled Indicates the load has been placed in the Byp...

Page 27: ...System One Line screen shows the overview of the PureWave UPS System It displays the power flow path through the system providing the user with accurate and timely system information Icons Icons on the status screen change according to the state of the system The icons and the lines connecting the icons change color depending on the state of the object represented by the icon See Figure 11 to see ...

Page 28: ...indicates that power is flowing through the line At the top left of the screen are icons that help the user navigate through the monitoring program See Figure 12 Figure 12 Navigation icons The icons provided are as follows One line screen Status screen Snapshot Viewer For service personnel only Event Viewer For service personnel only ...

Page 29: ... information Figure 13 Displayed parameters on the System One Line screen Status Screen The Status screen shows all the alarms for the PureWave UPS System and displays the active alarms using color indicators In addition the screen shows the current voltage and other parameters of the system as displayed in Figure 14 Figure 14 Status screen Time and date of last Run event Length of last Run event ...

Page 30: ...ditions and if required the frequency of the recommended maintenance may be increased to ensure the reliability of their PureWave UPS System S C Electric Company has extended service agreements and spare parts kits available for the PureWave UPS System Please contact the S C Global Support Monitoring Center at 888 762 1100 The PureWave UPS System will require maintenance to help ensure high system...

Page 31: ...to unlock the doors to the PureWave UPS System enclosure s q q Confirm with the site facilitator that the PureWave UPS System is de energized prior to conducting maintenance on the system Verified By _________________________ Date ___________ Required Tools q q Shop vacuum q q Rags or paper towels q q General purpose cleaner e g Simple Green q q Personal protective equipment q q Standard insulated...

Page 32: ...for each PureWave UPS System enclosure q q Enclosure _______________ q q Visually inspect the outside of the enclosure for signs of deterioration or rust q q Rust found YES or NO circle one q q If yes clean the rust and paint using the correct paint color for the enclosure q q If deterioration or rust is found but not cleaned and painted why q q Inspect the enclosure doors Verify the door seals ar...

Page 33: ...hydrogen vents Hydrogen vent top Hydrogen vent bottom Figure 15 Location of the hydrogen vents in the battery bay Inspect the air conditioners at the top of the battery bay Clean any debris or obstructions that can restrict air flow See Figure 16 for the location of the air conditioners Air conditioner Figure 16 Location of an air conditioner on top of the battery bay q q Inspect the general inter...

Page 34: ... for the Power Electronic Switch and switchgear enclosure q q Visually inspect the outside of the enclosure for signs of deterioration or rust q q Rust found YES or NO circle one q q If yes clean the rust and paint using the correct paint color for the enclosure q q If deterioration or rust is found but not cleaned and painted why q q Inspect the enclosure doors Verify the door seals are intact by...

Page 35: ...ach system enclosure and the PES and switchgear enclosure q q Bring the PureWave UPS System back online q q Record the system state _______________________ q q Close and lock all the enclosure doors and return site keys to the facility supervisor if applicable Notes Verified By _________________________ Date ___________ Maintenance ...

Page 36: ...UPS System enclosure s q q Confirm with the site facilitator that the PureWave UPS System is de energized Verified By _________________________ Date ___________ Required Tools q q Shop vacuum q q Rags or paper towels q q General purpose cleaner e g Simple Green q q Personal protective equipment q q Insulated torque wrench q q Standard assorted insulated hand tools wrench flat head screwdriver etc ...

Page 37: ...erioration or rust q q Rust found YES or NO circle one q q If yes clean the rust and paint using the correct paint color for the enclosure q q If deterioration or rust is found but not cleaned and painted why q q Inspect the interior of the enclosure bays and verify there are no signs of water ingress q q Inspect the enclosure doors Verify the door seals are intact by closing each door q q Inspect...

Page 38: ...place q q Inspect the air conditioners at the top of the battery bay Clean any debris or obstructions that can restrict air flow See Figure 19 for the location of the air conditioners Air conditioner Figure 19 Location of an air conditioner on top of the battery bay q q Inspect the battery bay hold down bolts Clean and re tap threads if required q q Inspect the general interior of the bay and veri...

Page 39: ... the bay is clean and free of dirt especially accumulations on the coil If the coil is dirty use a vacuum cleaner to clean it q q Transformer lead supports terminal boards and other major insulating surfaces should be wiped clean with a clean cloth q q Inspect the transformer air inlet vents located on the doors of the bay Clean any debris or obstructions that can restrict air flow q q After clean...

Page 40: ...the cooling air inlet and outlet areas Clean any debris and obstructions that can restrict air flow going into and out of the enclosure See Figure 20 for the location of the cooling air inlet and outlet areas Figure 20 Power electronic switch PES and switchgear enclosure right side view Cooling air outlet Cooling air inlet Air conditioner q q Inspect air conditioners at the top of the enclosure Cl...

Page 41: ...nal injury or equipment damage Equipment Testing q q Verify all smoke detectors are available undamaged and operate when tested q q Enable the system and verify the air conditioners are working properly by measuring and recording the compressor current draw on each air conditioning A C unit with an ammeter after the A C unit has been running for 2 minutes Operate the A C unit by either pushing in ...

Page 42: ...er temperature sensing via monitoring computer q q Remove a thermocouple from the analog board and verify there is a broken thermocouple warning on the monitoring computer and on the LCD screen q q Verify visually the control relays are not damaged q q Verify all fuses are in working order on the control panel q q Verify the service outlets and lights are operational Verified By __________________...

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