CE+T America Stabiliti 30C3 750/480 Manual Download | Manualshive

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Stabiliti

TM

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Microgrid Operation

The contents in document are subject to change without notice.

The products presented are protected by several international patents and trademarks.

All rights reserved.

Leading Conversion and Storage Technology for Energy Saving and Power Resilience

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Summary of Contents for Stabiliti 30C3 750/480

Page 1: ...on The contents in document are subject to change without notice The products presented are protected by several international patents and trademarks All rights reserved Leading Conversion and Storage Technology for Energy Saving and Power Resilience ...

Page 2: ... and CE T America does not purport the information provided is correct comprehensive or exhaustive This document is for informational purposes only You should not act upon information without consulting CE T America or its authorized distributors Copyright 2020 CE T America All rights reserved No parts of this document may be reproduced in any form without the express written permission of CE T Am...

Page 3: ...KW Quick Start Guide V1 0 9 6 3 DOC 00063 App Note Single Wire Microgrid Guide 9 6 4 DOC 000xx App Note Islanding Switchgear Guide 9 6 5 DOC 503 App Note Rapid Backup Power Solution Guide 9 6 6 DOC 00033 App Note Transformer Interconnection 9 7 Microgrid Operation Synchronous Vs Asynchronous 9 8 Microgrid Operation 10 9 Microgrid Operation SEL Method 12 10 Microgrid Operation Single Wire Command M...

Page 4: ...rid Operation Three Ways 10 Figure 2 Pros and Cons of Different Microgrid Operation Methods 11 Figure 3 Microgrid Operation SEL Method 12 Figure 4 Microgrid Operation Single Wire Method 14 Figure 5 Microgrid Operation Modbus Method 16 ...

Page 5: ... It is a customer facing document aimed to serve as an operational guide for Stabiliti converter s microgrid operation Document Revision History Contact Information CE T America Austin Texas g mittal cet power com Date Revision Notes Sept 15th 2021 A Initial draft ...

Page 6: ... PCS PCS Power conversion system specially Stabiliti 30C3 PV Photovoltaic LCD Liquid Crystal Display RSS Rapid shutdown system RSE Rapid shutdown equipment BoS Balance of system components BAMS Battery array management system MBMS Master battery management system CAN Communication protocol Modbus Communication protocol SoC State of charge of batteries specified in percentage UPS Uninterrupted powe...

Page 7: ...e Converter s external AC and DC Disconnects are open off A minimum wait time of five 5 minutes is required after opening AC and DC Disconnects to assure that the Converter s internal capacitors have discharged to zero voltage before performing any work on the Converter Utilize lockout procedures to ensure that both AC and DC Disconnects remain in the off position during all service periods Danger...

Page 8: ...perations requiring access to lethal AC or DC voltages should only be performed by qualified personnel Warning All field wiring must conform to the codes set forth in the National Electric Code ANSI NFPA 70 Warning Replace damaged warning and precautionary labels Refer to Reference Documents section of this manual for details on manuals documents that should be read first before proceeding ...

Page 9: ...C 503 App Note Rapid Backup Power Solution Guide 6 6 DOC 00033 App Note Transformer Interconnection Also refer to PCS modbus map for details 7 Microgrid Operation Synchronous Vs Asynchronous In essence microgrid operation means that the Stabiliti will form grid and keep the loads running even when the grid is lost For Stabiliti to be able to do so there are specific software settings and specific ...

Page 10: ...crogrid command at the same time but there might be a slight delay for individual units to start forming microgrid Due to this limitation this method is ideally suited for completely off grid applications 8 Microgrid Operation There are three different ways of achieving microgrid operation Each one has their own pros and cons Note that there is a max limit of 8 converters while forming microgrid R...

Page 11: ... required to form microgrid to support the loads Off grid means the system has no connection to the grid at all and there will never be an actual grid connection Black start refers to a mode of operation where the load is required to be brought online from a completely offline state Here is a summary of pros and cons of all three methods Figure 2 Pros and Cons of Different Microgrid Operation Meth...

Page 12: ...han the one shown in figure above The field connections and functionality will remain the same This is the most recommended mode of operation for all on grid applications System Startup Initial Start of System The system must be set up when the grid is present Upon interconnecting everything the SEL relay will engage 24 volts to the two digital signals connected to Stabiliti and at the same time i...

Page 13: ...During the following to forming transition the UPS within the Islanding switchgear provides power to keep the internal Stabiliti controls running Form to Follow Operation Grid is Back When the grid is back SEL ensures that the grid formed by Stabiliti is in sync phase voltage frequency with the grid and upon successful sync SEL relay closes the GIC and releases both microgrid command signals from ...

Page 14: ...eration as performed by CE T supplied Islanding Switchgear as described in the previous section It is customer s responsibility to design appropriate wiring and control algorithm to achieve the same The figure above serves as a guide to achieve required field wiring Note Regarding the Islanding Assist Box CE T can provide design documentation but will not be able to have one built for the customer...

Page 15: ... s responsibility to ensure reliable Stabiliti operation The Stabiliti s on board control systems are normally powered via the 480 vac connection During the following to forming transition the UPS within the Islanding switchgear provides power to keep the internal Stabiliti controls running Form to Follow Operation Grid is Back When the grid is back CCS must ensure that the grid formed by Stabilit...

Page 16: ... but will not be able to have one built for the customer It will be customer s responsibility to build one as per provided documentation System Startup Initial Start of System Before reaching the project site the UPS box must be fully charged Ensure the load is physically disconnected from the Stabiliti system Use the UPS box to power up Stabiliti Once Stabiliti is on the AC port must be set to FP...

Page 17: ...tion Grid is Back Not applicable Application This method is best suited for projects which are completely off grid Disclaimer Note that in this case the full operation is solely controlled by Customer Control System CCS must control all DERs appropriately to ensure reliable operation CE T shall not be held liable for damage or harm caused to equipment or personnel due to incorrect system operation...

Page 18: ...End of Document ...

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