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66/78 SUREWAVE SFC USER MANUAL

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11 Operation of the SFC

Safety

The SFC must be only operated by trained and authorized personnel, i.e., personnel who are fa-
miliar with the operation of the SureWave SFC and the hazards involved.

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Machine state flow diagram

While the SureWave SFC system is operational, it has two basic modes of operation Isochronous
and droop mode. This section explains the SureWave SFC machine different states transitioning
between modes of operation and the logic driving the control of transitioning from one state to
another.

Figure 11-1: SureWave SFC state flow diagram

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Summary of Contents for SureWave SFC

Page 1: ... Copyright 2021 ABB All rights reserved SureWave SFC User Manual STATIC FREQUENCY CONVERTER SureWave SFC User Manual ...

Page 2: ...powered equipment to a 60 Hz supply network Additionally the SureWave SFC can sta bilize the frequency and the voltage to allow the correct operation of sensitive equipment when the supply is not suffi ciently regulated The SureWave s high efficiency also con tributes to sustainability potentially represents a carbon emissions reduction of 351 tons over a typical 15 years lifespan ...

Page 3: ...ue Date 2021 10 Revision Rev A 1 1 3 Contact information Address ABB Ltd Napier 4110 111 Main North Road New Zealand Web https new abb com power converters inverters grid interconnections indus trial pcs120 sfc 1 1 4 Equipment covered by the manual This manual covers the standard SureWave SFC product and provides general information regard ing General functions of the SFC Operation Component enclo...

Page 4: ...B personnel Handling The personnel must be skilled and experienced in unpacking and transporting heavy equipment Mechanical installation The personnel must be qualified to prepare the installation site according to the site and equip ment requirements and to perform the installation accordingly Electrical installation The personnel must have a sound knowledge of the relevant electrical codes and s...

Page 5: ...also implies that only spare parts recommended and approved by ABB may be used 1 1 8 Quality certificates and applicable Standards The following certificates and conformity declarations are available from ABB ISO 9001 certificates stating that ABB Ltd in Napier has implemented and maintains a man agement system that fulfils the requirements of the normative standards EC conformity declaration Indi...

Page 6: ...3 PE120 U2 enclosure hub carrying PEBBs and universal controller 4 Output enclosure Term Enclosure UAx complete with circuit breaker 1 75 MVA to 2 25 MVA 5 enclosures as follows 1 Input enclosure Term Enclosure UAx complete with circuit breaker 2 PE120 U1 enclosure main carrying the universal controller main GDM and PEBBs 3 PE120 U2 enclosure hub carrying PEBBs and universal controller 4 PE120 U3 ...

Page 7: ...main controller or hub MC Main Controller UC120main controller located in the PE120 U1 enclosure HUB HUB controllers are located in PE120 U2 and PE120 U3 cabinets re spectively The main function is to transfer the information to the main controller GDM Graphical Display Module Has the local Human Machine Interface HMI and it is located in the PE120 U1 enclosure HMI Human Machine Interface CB Circu...

Page 8: ...designation should however not be regarded as an offence of the legal status of any trademark The following registrations and trademarks are used in this manual Abbreviation Term Meaning Modbus Registered trademark of Schneider Electric USA Inc SureWave Registered trademark of ABB Ltd Table 1 3 Trademarks Related documentation Document type Document title Document Number Drawings 250 kVA to 750kVA...

Page 9: ... read this User Manual which contains all the necessary information and de scribes all you need to know about the use of the SFC The User Manual describes the function of the SFC its operation system components the meaning of the system events related to the user interface and provides procedures for starting and stopping the equipment Please refer to the Installation Manual for details on how to ...

Page 10: ...transformer configuration 26 Industrial application 26 Shore to ship Converter on shore side 26 On board shore power 27 Specifying transformer 28 Sizing Transformers 28 7 Model definition 29 Platform code 29 SureWave product code 29 Power rating 29 Input cable routing CB 30 Output cable routing CB 31 Ingress protection 31 Input voltage 32 Input frequency 32 Output voltage 32 Output frequency 33 Op...

Page 11: ...U 48 10 User Interface 50 Graphic Display Module GDM 50 Navigation buttons 51 11 Operation of the SFC 66 Machine state flow diagram 66 System start 68 Operation modes 68 VSI vs virtual generator 69 SureWave SFC performance 70 Remote AC bus Synchronization 71 System EPO 74 Hard fault 74 12 Maintenance schedule 75 ...

Page 12: ...οχή ισχύος προτού ξε κινήσετε τις εργασίες σε αυτήν τη συσκευή Προσοχή Η εγκατάσταση πρέπει να γίνεται μόνο από αδειούχο ηλεκτρολόγο εγκαταστάτη EN Warning Hazardous voltage Refer to installation instructions Disconnect and lock out power before working on this device Attention Installation by person with electrotechnical expertise only ES Advertencia Tensión peligrosa Consulte las instrucciones d...

Page 13: ...ng av strømmen før du arbeider på denne enheten Forsiktig Montering skal kun utføres av kvalifiserte personer med elektrokompetanse PL Ostrzeżenie Niebezpieczne napięcie Patrz instrukcja obsługi Przed rozpoczęciem wykonywania pracy z tym urządzeniem odłącz i zablokuj zasilanie Uwaga Montaż może wykonywać wyłącznie osoba posiadająca doświadczenie elektrotechniczne PT Aviso Tensão perigosa Consulte ...

Page 14: ...ll operations on the SureWave SFC must only be carried out by a trained opera tor familiar with the contents of this manual Hazardous conditions could arise from incorrect adjustment DANGER Hazardous voltages An Operator must not open doors or panels marked as containing hazardous voltages Many parts in this product including printed circuit boards operate at lethal high voltages Stored energy com...

Page 15: ...ling and disposal Table 3 2 Safety notices Safety labels are attached to the enclosures to alert personnel of potential hazards when work ing on the equipment The instructions on the safety labels must always be followed and the la bels must be kept in a perfectly legible condition General safety information 3 2 1 Operator duties The scope of work for an operator of the SureWave SFC is to control ...

Page 16: ... or installed equipment Wrongly connected cables External influence on or damage to the equipment Wrong parameter settings Operation of the equipment outside the scope of the specifications Software errors Faulty hardware Hazardous touch voltages can be present on SureWave SFC system components caused by for example Operation of the equipment outside the scope of the specifications External influe...

Page 17: ...ss interference intrusion leakage and or theft of data or information Deployment guidelines The recommended Cyber Security deployment for the SureWave SFC is for it to be only used in a trusted network with restricted access The user is responsible for creating a defense in depth protection by allocating firewall solutions to each network For secure remote access use a VPN connection the SureWave ...

Page 18: ...wer modules to convert the incoming utility to DC then convert this DC back to 3 phase AC for supplying the load at the required fre quency and voltage The PCS120 power modules are compact and efficient which contribute to the overall SureWave SFC being a compact powerful converter system with a fast dynamic re sponse to load changes and a high overload margin The SureWave SFC installation may be ...

Page 19: ...e output voltage is tolerant to signifi cant voltage distortion and transients from incoming voltage 5 2 1 Generator mode In generator mode VGen the SFC emulates the behavior of a real rotary generator and thus in teracts with the power system in the same way as a traditional synchronous machine This be havior is achieved purely through power electronic control and there are no large spinning mass...

Page 20: ... PEBBs SureWave SFC UC Controller GDM Output Isolation Transformer P Q Figure 5 3 SureWave in Fix Power User interface The primary user interface is via a door mounted touch screen Graphical Display Module GDM The display is a 10 resistive touchscreen with a user friendly intuitive interface The integrated navigation screen gives easy accessibility to any information on the SureWave SFC it shows t...

Page 21: ...osure PE120 U1 o Subcomponents SureWave Power Electronic Building Blocks PEBBs Main controller MC Graphic Display Module GDM Platform Enclosure PE120 U2 U3 o Subcomponents SureWave Power Electronic Building Blocks PEBBs Hub controller hub AC Termination Enclosure Term Enclosure UAx o Subcomponents AC input and output cable termination 3 phase AC circuit breaker ACB ...

Page 22: ...ray at the bottom of each PE120 enclosure may be externally feed from an independent 3 phase AC source Generally the auxiliary supply is feed from the in put AC power terminals Figure 5 6 PE120 enclosure 5 4 1 1 SureWave SFC power electronic building blocks The SureWave SFC can contain up to eighteen PEBBs The Power Electronic Building Blocks are high efficiency three level bi directional power el...

Page 23: ... enclosure This user interface of the SureWave SFC is connected to the main controller Through the GDM it is possible to operate and monitor the SFC read edit its parameters and reset faults Figure 5 8 GDM 5 4 2 Termination enclosure Term Enclosure UAx The termination enclosures have the AC termination bars where the input and output of the SFC is connected The enclosure is designed to accommodate...

Page 24: ...24 78 SUREWAVE SFC USER MANUAL Figure 5 9 Termination enclosure Cooling system Figure 5 10 Air flow direction ...

Page 25: ...n illustrate the air intake blue ar rows and air out red arrows Please refer to the General Arrangement drawings for more infor mation about the minimum recommended clearances for operation and maintenance purposes 5 5 1 PE120 Enclosure air flow diagram The enclosure airflow is managed as shown in Figure 5 11 Enclosure air flow diagram where the air gets drawn from the enclosure front through the ...

Page 26: ...tar with a solidly grounded star point to create a TN network supply This is the best and recommended configuration for the SureWave SFC SureWave SFC Output Isolation Transformer DNY11 TN input 380 480 V 50 60Hz Figure 6 1 Industrial application example Shore to ship Converter on shore side When supplying power to berthed vessels it is recommended that the SFC has an output trans former The transf...

Page 27: ...rated by the converter but also very importantly galvanic isolation from the shore earth Galvanic iso lation from the shore earth is required to eliminate the earth currents that cause galvanic corro sion between the ship s hull and other metal objects An additional transformer may be required on the output if voltage matching or a neutral point is required Note unless a static balancer is employe...

Page 28: ...ormer manufacturer will be able to provide a suitable solu tion Please see ABB document 2UCD030000E003 for more detailed information Sizing Transformers When specifying a transformer the engineering application team must be aware and take in to account the required power output of the SureWave SFC If an input transformer is being used allowance must be made for the converter losses which will be a...

Page 29: ...nput voltage 12 Input termination side 3 Power rating 8 Input frequency 13 RFI configuration 4 Input cable routing CB 9 Output voltage 14 External LV PSU feed 5 Output cable routing CB 10 Output frequency Platform code The SureWave SFC is part of the family of the high efficiency power converters PCS120 The plat form comprises different products for specific applications SureWave product code Each...

Page 30: ...le 7 1 SureWave SFC power rating type code Input cable routing CB The SureWave SFC is available with provision for top or bottom cable routing for the input termi nation Models between 250 kVA and 750 kVA only provides bottom cable routing Note termination enclosures are only available for 750 kVA models For protection reasons it is necessary to supply the SFC through a suitably rated low voltage ...

Page 31: ...res are only available for 750 kVA models Cable routing circuit breaker Code Top entry circuit breaker present T1 Top entry no circuit breaker T0 Bottom entry circuit breaker present B1 Bottom entry no circuit breaker B0 Table 7 3 SureWave SFC output routing cable CB type code Ingress protection IP21 models provide protection against touch and fingers greater than 12mm diameter Addi tionally prote...

Page 32: ...oltage Code 380 V 38 400 V 40 420 V 42 440 V 44 460 V 46 480 V 48 Table 7 5 SureWave SFC input voltage type code Input frequency The nominal supply input frequency to the SureWave SFC may be set through different sources by an operator with the correct log in credentials Input frequency Code 50 Hz 5 60 Hz 6 Table 7 6 SureWave SFC input frequency type code Output voltage The SureWave SFC covers a w...

Page 33: ...e SureWave SFC may be set through different sources by an operator with the correct log in credentials Output frequency Code 50 Hz 5 60 Hz 6 Table 7 8 SureWave SFC output frequency type code Operation The SureWave SFC can be set to operate standalone or to share the load with other power sources e g a diesel generator or another SFC Operation Code Parallel sharing P Standalone S Table 7 9 SureWave...

Page 34: ...n output transformer and having RFI ground reference on the input side rectifiers which means the output side inverters is RFI floating This will also ensure a clean common mode noise filtered 3 phase voltage supply to the auxiliary supply As an option the SureWave SFC s incoming supply can be from a network supply different to TN if required e g IT network using an input transformer in this confi...

Page 35: ...ected incoming network supply is TN using output trans former output side RFI floating In cases where the input side is not RFI grounded e g no output isolation transformer the supply will have to be externally fed from 3 phase supply clean of common mode noise as per LV PSU specifications External LV PSU feed Code Yes Y No N Table 7 12 SureWave SFC external LV PSU feed type code ...

Page 36: ...entry only for 750 kVA Top or bottom Communication MODBUS TCP IP Ethernet Table 8 1 SureWave SFC technical specifications summary 250 kVA to 2 25 MVA range specifications 1 PE120 2 PE120 3 PE120 Module pairs PEBBs 1 2 3 4 5 6 7 8 9 Termination Cabinet No No No Yes Yes Yes Yes Yes Yes I O Breaker N A N A N A E4 2 2000 E4 2 2000 E4 2 2000 E4 2 3200 E4 2 3200 E4 2 3200 Breaker rating current A N A N ...

Page 37: ...lated Floor loading 1353 kg m Table 8 3 SureWave 250 kVA to 750 kVA range Refer to 2UCD42000E102_B for more detail 8 2 2 1 0 MVA to 1 5 MVA range Dimensions W x D x H 3230 x 898 x 2295 mm Weight 3300 kg bottom entry fully populated Floor loading 1136 kg m Table 8 4 SureWave 1 0 MVA to 1 5 MVA range Refer to 2UCD42000E101_B for more detail ...

Page 38: ...ies upon upstream protection for cur rent overload and short circuit protection Upstream protection should be provided by a circuit breaker between the incoming supply and the SFC as per product specifications please refer to 2UCD420000E002_a SureWave SFC Technical Data Sheet Rectifier modules PEBBs do not draw large inrush currents nor do they consume current be yond about 250 Therefore upstream ...

Page 39: ...upply and the SFC as per product specifications please refer to 2UCD420000E002_a SureWave SFC Technical Data Sheet Inverter modules PEBBs do not draw large inrush currents nor do they consume current be yond about 250 Therefore downstream protection can be set quite closely Fast close protec tion should be applied Fast protection refers to clearing times always without delay as fast as possible fo...

Page 40: ...S120 42 075xxxxxx do not have circuit breakers or termination enclosures fitted It is the responsibility of the customer or system integrator to supply and install these circuit breakers Power wiring is made directly between these circuit breakers and the SureWave SFC input and output busbars Figure 9 1 Single enclosure power cables connection 9 1 2 Multiple enclosures 1 MVA to 2 25 MVA Multiple e...

Page 41: ...outing could be from the top or the bottom of the termination enclosure Single enclosure solution only provides bottom routing Figure 9 2 Multiple enclosures power cables connection I O interfaces Multiple digital I O and analogue I O are available on the MC main controller for monitoring and control of the system The ethernet connection for remote webpage and MODBUS is provided for in the MC gear...

Page 42: ...tion P287 A 1 Hard stop EPO When system is running this input goes low opens emergency trip is activated P287 A 5 Internal Inhibit start Door switch When system is not running this input is off system is in hibited from starting When system is running this input goes low opens an emergency trip is activated P287 B 2 Customer DI A Configurable to be used as a warning or a trip e g a trans former th...

Page 43: ...en enabled high output power and VARs are sourced based on Pset and Qset P287 C 6 Load enable Applicable only in Virtual Generator mode used to bump lessly load or unload the SFC When enabled High the load is ramped to the SFC at a fixed rate when disabled Low the load is offloaded to the other sources P287 C 7 Synchronize Used to synchronize system to another AC bus P287 C 8 NA NA Table 9 1 Summa...

Page 44: ...set point If this overload persists the system will eventually trip after configurable trip time P286 B 2 Synchronized High signal indicates output power terminals are synchro nized to external bus P286 B 3 Loaded Only relevant in virtual generator mode When set high load ramp is at 100 when low load is 0 or not yet reached 100 P286 B 3 Reserved Table 9 2 Summary of status outputs 9 2 3 Analogue i...

Page 45: ... 2 4 Analogue outputs Two analogue outputs are provided to enable customer monitoring of various running parame ters in the SFC Table 9 4 summarizes these analogue outputs Each analogue output may be configured as 0 20mA or 4 20mA or 0 10Vdc Figure 9 7 User analogue outputs Terminal no Name Description P289 1 of rated power Output indicates output power delivered as of its rating P289 2 of rated c...

Page 46: ... without external circuitry and it is rated for 900 Vrms 9 2 6 Ethernet port An ethernet port connection is provided for Modbus TCP and web interfaces can be physically accessed The connection point is located on the bottom of the Main Enclosure s gear tray via the ethernet coupler XF2 see Figure 9 9 User ethernet interface Figure 9 9 User ethernet interface ...

Page 47: ...ents are accessible from the webpage interface Start Stop Reset setting of parameters and control are also available to those with the correct log in credentials Figure 9 10 Remote webpage interface 9 2 7 1 List of user accounts The SureWave SFC includes an ABB Service account which is accessible via Secure Shell SSH No other accounts are enabled for SSH access Operator parameter setting to tempor...

Page 48: ... SFC provides information including input output voltages frequencies currents and system status through the Modbus TCP communication port For a detailed description of Modbus registers addresses and ranges refer to SureWave SFC Modbus TCP Register Map 2UCD4200000E005 Auxiliary AC power supply for LV PSU The SureWave SFC s LV PSU can be externally feed if required from a 3 phase 3 wire AC voltage ...

Page 49: ...MVA to 2 25 MVA models For SureWave SFC models between 1 MVA and 2 25 MVA the 3 phase terminals location is on the left hand termination enclosure next the PE120 U1 main Figure 9 12 Terminal connection for external AC feeding 750 kVA models ...

Page 50: ...screens and menus The user can switch between them using the naviga tion buttons appearing on the left side of the GDM screen On the right side of the GDM screen the user can view product s main information product number access level language etc and the current system status bar The Start Stop and Reset buttons are also placed at the bottom righthand corner of the GDM screen The navigation butto...

Page 51: ...rm The user can confirm the operation by pressing START STOP on the confirmation window or by pressing Dismiss to close the window and return to the previous screen with no changes on the SFC state Please refer to 11 Operation of the SFC for more information about the system Start Stop Figure 10 2 GDM SFC stop confirmation screen Navigation buttons The navigation buttons provide all different main...

Page 52: ...reWave Main page This shows the dashboard screen displaying the running state of the SFC The screen can be divided into three different functional columns as follows Figure 10 3 SureWave Main page 10 2 1 1 Column 1 Input Shows the line to line voltage Vrms of the incoming three phase power supply Input line currents A Input frequency Hz Active of the power base and reactive power of the power base...

Page 53: ...single line diagram indicating the present operating status of the SFC and indi cates the power flow path direction of power flow is not shown See Chapter 11 Opera tion of the SFC for more detail The power flow in the SureWave SFC system can be summarized into two main states Running and Stopped The thick blue lines will indicate the energized sections For applications where the SFC is energized a...

Page 54: ...equency Hz Active of the power base and reactive power of the power base The output voltages are represented by vertical bars at the input and output columns and a hor izontal line across the bars indicates the 100 mark normalized to the nominal value of the voltage 10 2 1 5 Column 5 External measurements Shows external three phase line to line voltage Vrms and frequency Hz measure ments of the AC...

Page 55: ...2 Active events page This page shows a list of the system messages for currently active events like warnings and faults When clicking on an active event on the left hand side of the window a description of the warning or fault is displayed in the events detail field Figure 10 5 SureWave Active events page Description of all the icons found in the active events page is shown in Table 10 4 SureWave ...

Page 56: ...igured as a Warn ing Typically used for transformer monitoring This event has occurred Check the source of the warning and take action accordingly In the case of a transformer over heat shut the system down or reduce the load Check inter cabinet wiring Check TX PTC connections are intact 8 Chamber Hot WARNING One of the PE120s bus bar thermal switches has opened Check overload status PEBB fan oper...

Page 57: ...wound up to its upper limit If in Fixed power check Pset set point maximum parameter is within bounds 46 Vgen P Sat min WARNING Virtual Generator P loop output has been limited to Sat Min threshold Governor has wound down to its lower limit If in Fixed power check Pset set point minimum parameter is within bounds 47 Vgen Vlim Sat max WARNING Virtual Generator output voltage has been lim ited to Sa...

Page 58: ...nsformer cool down before attempting to op erate again Check inter cabinet wiring Check TX PTC connections are intact Check transformer cool ing setup 11 PSUs Not Good WARNING OR TRIP One or more of the auxiliary PSU out put voltage 90 or output in overload If one fails fan speed will be reduced If both fail SFC will trip If SFC still running with re duced cooling organize PSU Replacement System c...

Page 59: ...B Service 66 Min output freq ex ceeded TRIP Output frequency has fallen below minimum level limit Contact ABB Service Table 10 6 SureWave SFC active events icons 10 2 3 Event Log This page shows a list of the system messages for system events including origin code type timestamp and basic description The events are classified as information warnings or faults Up to ten events are displayed on each...

Page 60: ...s Update events list Table 10 7 Event Log page icons 10 2 4Product information page This page includes all the software version for the different system components Also for access level higher than the default one Any User the option of Service Log is enable Figure 10 7 Product information page 10 2 5 Service page This page is available for service trained authorized personnel that need special ac...

Page 61: ... 10 2 6Settings page The Settings page gives access to SureWave SFC system parameters based on the user log in and their accessibility level The parameters are organized into different groups and each one has specific access rights Figure 10 9 Settings page ...

Page 62: ...s w 90 General w 900 Customer Name w 901 Customer Tag Name w 902 Site Name w 903 Unit ID r 904 Product Name r 905 Model Name r 906 Serial Number r 907 Main Controller Reboot w 908 PEBBs Reboot w 91 Graphical Display w 910 Display w 9100 Color Theme w 9101 GDM Reboot w 9102 Screen Saver Time w 911 Access w 9110 Remote Access w 9111 SSH Port w 9113 Change Operator Password w 9114 Service Access w 91...

Page 63: ...mpensation r 943 Resistance Compensation r 944 Voltage Ref Ramp Rate r 945 Voltage Trip Maximum r 946 Voltage Trip Minimum r 947 Frequency Ref Ramp Rate r 948 Frequency Trip Maximum r 949 Frequency Trip Minimum r 94A Droop Settings w 94A0 Voltage Droop Params Source w 94A1 Frequency Droop Params Source w 94B Virtual Generator w 94B0 Inertia J w 94B1 Synthetic Impedance L VGen Mode Only r 94B2 Synt...

Page 64: ...f Params Source w 973 Fix Q ref Params Source w 98 CMD Ref Sources w 980 Output Voltage Source r 981 Output Frequency Source r 982 Droop Source r 983 Droop Enable Source r 984 Load Enable Source r 985 Fix Power Enable Source r 986 Fix P ref Source r 987 Fix Q ref Source r 99 PEBB Group Configs w 990 Input Minimum Capacity r 991 Input RFI Mode r 992 Input Fan speed r 993 Output Minimum Capacity r 9...

Page 65: ... no user is logged in the SFC will remain at a reduced ac cessibility level of Any User Logging in prevents the unauthorized changing of parameters and or the up loading of firm ware The end user must log in as operator to enable the SSH Se cure Shell port and to enable the service log in It is recommended that the end user changes the Operator password from the factory default to improve security...

Page 66: ...ave SFC and the hazards involved Machine state flow diagram While the SureWave SFC system is operational it has two basic modes of operation Isochronous and droop mode This section explains the SureWave SFC machine different states transitioning between modes of operation and the logic driving the control of transitioning from one state to another Figure 11 1 SureWave SFC state flow diagram ...

Page 67: ...to the set point and a rate defined in the inter nal parameters Coupled start Output PLL lock Assesses output AC bus for suitable voltage magnitude and stability prior to synching Sync voltage Synchronizes internal voltage reference to the output bus Sync frequency Synchronizes internal frequency reference to the output bus Sync phase Synchronizes internal phase reference to the output bus Start i...

Page 68: ... the SFC can be started after the Start digital signals is received Modbus TCP The SFC can be started after the Start command is received Operation modes The SureWave SFC may have its output frequency and voltage controlled independently in a number of different ways depending on the application Stand alone applications without any other generation equipment connected to the load This typically re...

Page 69: ...de physical inertia is modeled in the SureWave SFC control system providing a damp ing response to the grid frequency via the energy provided by the incoming supply Note the modelled inertia artificially limits the speed of the SFC thus this mode is not recom mended for applications where fast control is required 11 3 2 2 VGen V F droop The recommended mode when in parallel with other energy sourc...

Page 70: ...e load increase is gradually passed over to the generator s 11 5 2 Load rejection capability A load rejection is a decrease in load Load rejection capability is a measure of how much load can be removed from the output of a converter or generator while still providing output voltage and frequency within specifications The load rejection capability of a generator set is very dependent on its prime ...

Page 71: ...able Droop enable Synchronized AC Bus Output CB Generator CB Figure 11 2 Seamless transfer from a generator to SFC The installation and connection of the SureWave SFC to allow seamless transfer from a genera tor is shown in Figure 11 2 Seamless transfer from a generator to SFC Note for proper operation the phase and voltage relationship between the voltages measured by the external voltage sense a...

Page 72: ... load may be transferred from either machine by setting the unload command on the SFC or unloading the Generator 11 6 2 Transfer SFC to generator Typically generators will have their own synchronizer which will perform the synchronization to the SFC supplied AC bus If a generator is unstable when connected to the AC bus supplied by the SFC enabling V F droops on the SureWave SFC might help with st...

Page 73: ...e V F droops to allow the SFC to parallel with the generator when the generator is online 3 Command the SureWave SFC to synchronize to the reference as measured on the exter nal voltage sense board 4 Once the SFC is synchronized the generator CB can now be closed connecting the gen erator to the AC bus 6 Once the generator is online the SFC can be off loaded and switched off The AC bus is now bein...

Page 74: ...nual for a complete detailed transfer procedure de scription System EPO The system Emergency Power Off EPO is a digital input linked to the site EPO and use to in hibit the SureWave SFC operation in case of emergency shut down For larger systems 750kVA the emergency inhibit action will not open the CBs located inside the termination enclosures Hard fault Hard faults are extremely rare situations w...

Page 75: ...carried out before or after the recom mended interval Item Years from start up 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Power supply I I I R PSU buffer I I I R Busbar contact grease R I I R PEBB fan I I I R I I I I I R I I PEBB air filter kit I I I R I I I I I R I I PEBB AC caps I I I R Enclosure air filter kit I I R I I R I I R I I R I I Input output breakers Table 12 1 SFC to generator transfer procedur...

Page 76: ...evail ABB AG does not accept any respon sibility whatsoever for potential errors or possible lack of information in this docu ment We reserve all rights in this document and in the subject matter and illustrations con tained therein Any reproduction disclosure to third parties or utilization of its contents in whole or in parts is forbidden without prior written consent of ABB AG 2UCD420000E001 ...

Page 77: ...on sibility whatsoever for potential errors or possible lack of information in this docu ment We reserve all rights in this document and in the subject matter and illustrations con tained therein Any reproduction disclosure to third parties or utilization of its contents in whole or in parts is forbidden without prior written consent of ABB AG 2UCD420000E001 https to abb RH91iGe3 ABB Ltd 111 Main ...

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