User`s Manual User`s Manual er`s Manual
Contents
1. 9 29 sura c 31 org EET 32 11 Service CONTAC Ecosse ioter cone arce Lea serere eod dos eC Fee aUe aiaee taste Rea shusedeadedeRedslededeeesencecosanauseeeededetes 33 Page 4 Central Box User s Manual ancon 1 Introduction 1 1 Usage The PADCON Central Box is an array combiner used as a device for collecting of the individual supply lines from the TGA boxes of the photovoltaic plant The DC supply lines collected in the Central Box are led to the inverter via a collecting main Central Box Plus JE qu im uy aia oe a mum m 7 qu qu pe TGA Box Central Box Pro Minus PV Modules Inverter Figure 1 Central Box Overview The Central Box is always mounted in pairs in each case one box for plus and minus to guarantee a safe build up The consequent focusing of the construction for durability is reflected in the clear layout the use of high quality components and the specific design for outdoor operation Padcon optionally offers the RealTime monitoring system for the Central Box There are two types of the Central Box the Central Box Plus and the Central Box Minus The Central Box Plus is used for collecting up to 14 Plus supply lines from the TGA Boxes The Central Box Minus is used for collecting up to 14 Minus supply lines from the TGA Boxes Additional the vol2. Line Connection type Cross Thread Torque section diameter Supply line Screw connection 16 95 mm M10 25 Nm Collecting main Screw connection 16 120 mm M12 32 Nm Protective conductor Screw terminal 16 120mm M10 32 Nm Control and Spring terminal 0 75 2 5 communication lines mm Table 4 Central Box Cable cross sections and torques Central Box User s Manual Page 15 4 3 2 Connection of the Central Box Minus Figure 6 Central Box Minus Connection 1 Figure 7 Central Box Minus Connection 2 Page 16 Central Box User s Manual ancon Central Box Minus terminal description String supply lines to the NH1 fuses of WM1 Screw connection Signal description String supply lines 1 to 7 e ct Ss N String supply lines to the NH1 fuses of WM2 Screw connection Signal description String supply lines 8 to 14 co ct 3 s e e B Collecting main of WM1 Signal description Screw connection 1 Collecting main of WM1 Collecting main of WM2 onnection Signal description Collecting main of WM2 elv e iO e Terminal block X1 Surge arrester monitoring Spring terminal Signal description 1 Surge arrester monitoring contact 1 ncc 2 Surge arrester monitoring contact 2 ncc 15V Power supply OV Powe
3. 8 Safety instructions General 1 The Central Box only must be opened and installed by trained electrotechnical specialists 2 Consider the installation instructions in this manual 3 Consider the installation instructions of the used inverters and other connected devices 4 Consider the standards and rules as BGV A1 A2 Common trade association safety instructions for electrical installations equipment DIN VDE 0100 712 Solar photovoltaic power supply systems requirements for industrial premises rooms and plants VDI 6012 VDI Guide line Decentralised energy systems in buildings photovoltaic IEC 62548 IEC82 514 CD Installation and safety requirements for photovoltaic PV generators DIN VDE 0100 534 5 Inspect the Central Box for damages before installation that can prevent the functional and safety operation of the Central Box 6 Incase of violation of the installation instructions mentioned in this manual expires the warranty and the liability Validity This documentation describes how to install and operate a Central Box Target group This documentation is intended for installers and operators of PV systems which are realized with the Central Box It includes a description of how to install operate the Central Box Explanation of the Symbols Used In this document the following terms and symbols are used to describe different hazard levels Danger indicates a hazardous situation which if not avoided will res
4. Central Box User s Manual Future technologies G June 2011 Documentation History Edition Revision Supplement 1 0 First Edition November 2010 2 0 New edition February 2010 completely revised 3 0 New edition November 2010 completely revised 4 0 June 2011 New logo Edition 4 0 PADCON reserves the right to make alterations to its products in the interest of technical progress These alterations need not be documented in every single case This manual and the information contained herein have been compiled with due diligence However PADCON assume no liability for printing or other errors or damages arising from such errors The brand names and product names used in this document are trademarks or registered trademarks of the respective title owner Page 2 Central Box User s Manual ancon Content Central Box Users Manual roter tecti easet obe Pera eaa hie a aiaa al aaa aii e seco eE 1 D c mentatiom FISEONY s et see pis aee e eE sa e seie EE AEn Eein PEEP Eaa eta EEEE EIR EEEE 2 CONTON arera R R 3 TNO dUCION ER E 5 LYSIE DELE 5 2 Product description Delivery CONTENKS ccccccesceesseceessecescecesseeessececsaececseccesseeeeaaeceeseecesseecsseeesaeeseasecesseeeeas 7 2 1 Overview of the Central Box Plus sesssiissessseseeeeeeee ense enne nennen nennen nans thnten eser nn st nn nennen nes 7 2 2 Overview of the Central Box
5. 25 G24 T ViStial CHECK qM ER 25 6 1 2 Mechanical check 5 iate pice et anaana aida se peo eoe East te geo Pede pere aE E ERE AN 25 6 1 3 Electrical CHECK ss ciccee cect se sacercvacddteteeesseleeeccvsnedesnchoeedduseripeandesesneelet AE EEEE a EOLA SEE ese ateles 25 6 2 Check of the plus and minus string FUSES cccceceseesssseceeeceseseaeeecececessesssaeeceseecesseesesauaeeeeecssuseaeaeeeeeens 25 6 2 1 Vistal COCK E 25 6 2 2 Electrical check LEE 25 6 3 Collecting function of the Central BOx ccccccccccccsssssssssceccecessecnsseeececeseeseaeseaeeeceessssseaeaeeeeecsseseaaeaeeeesens 26 6 3 1 Visual COCK OP pm 26 6 3 2 Mechanical check ceecceessscesseceeeececeeeeeeaeeesaaeceaeceeeaessaeeeeaaececaaeseaaeeseaaeceeaaeseeneneaaeeesaeeeeaaeseeeeeens 26 6 4 arredo Kore eI 26 6 5 Protection against surge voltages cedet deca reete eee Exo na aeo eec tec doeet neca dos 26 6 5 1 Visual CHECK EEUU 26 625 2 Electrical CHECK OE 26 6 6 Disconnection function between inverter and PV plant eee enne 27 7 Fault analysis DECOMMISSIONING ccesceesseceescecesseccsseccsseceeseeceseeccssecesaueecesseccsaececsseceesecseeeeenseeeeasecessees 28 Fed Faultanalysis cese hier aetema dee eae e aaee aaae sess desea fuese css desee eere ete dee e eres 28 7 2 Decommissioning and demounting of the Central BOx ccccssssccceessesssneseceeecesseseeaasaeeeecessessessaeeneess 28 8 Safety INSUFUCKI ONS eT
6. ct 36 N String supply lines to the NH1 fuses of WP2 Screw connection Signal description String supply lines 8 to 14 oe i A Collecting main of WP1 Screw connection Signal description 1 Collecting main of WP1 Collecting main of WP2 Screw connection Signal description 1 Collecting main of WP2 5 Surge arrester communication X0 pring terminal Signal description Remote signal contact 1 noc N m Bio Remote signal contact 2 noc Voltage measurement to Central Box Minus F1C Screw terminal Signal description HP Central Box Plus is connected with Central Box Minus for the voltage measurement This connection is established between the fuse F1C of the Central Box Plus and the fuse F2C of the Central Box Minus At this point here the connection for the Central Box Plus is attached to the screw terminal of fuse F1C G PE bus bar in the Central Box base Screw terminal Signal description 1 to 10 Up to 10 screw terminals can be sticked to the PE bus bar for the necessary PE connections Table 3 Central Box Plus Terminal description Page 14 Central Box User s Manual ancon Note D The torque of the individual lines mentioned below has to be observed during connection Observe tightening torque Cable cross sections and torques
7. of the voltage measurement e The voltage at the collecting main of terminal WP1 of the Central Box Plus e The voltage at the collecting main of terminal WM1 of the Central Box Minus This voltage is converted in the Central Box Minus with the help of a voltage converter and the measured value is made available at terminal XM1 For the voltage measurement a line is led from terminal WP1 of the Central Box Plus into the Central Box Minus Figure 13 Central Box String voltage measurement gives a basic overview of the string voltage monitoring that is measured between the collecting mains of the Central Box Plus and the Central Box Minus Tap on adapter board of the Central Box Minus Voltage input 0 to 1000V Measured signal 0 to 10V m FMP 10x38 String voltage monitoring Central Box Minus String voltage monitoring Connection between Central Box Plus and Central Box Minus Central Box Plus n Tr om Figure 13 Central Box String voltage measurement Central Box User s Manual Page 23 Voltage monitoring of the collecting mains Central Box Plus Tap Collecting main terminal WP1 Input voltage value 0 bis 1000 VDC range Measured signal value O bis 10 VDC range Central Box Minus Tap Collecting main terminal WM1 Input voltage value 0 to 1000 VDC range Measured signal value O to 10 VDC range Table 8 Volta
8. s Manual ancon 7 Current converter at supply line 6 of WM1 0 4 VDC 8 Current converter at supply line 7 of WM1 0 4 VDC X4 RJ45 Analog inputs for the current converter evaluation for string current measurement Pin Signal description 1 OV potential for the analog signals of the converters for string current measurement Current converter at supply line 8 of WM1 0 4 VDC Current converter at supply line 9 of WM2 0 4 VDC Current converter at supply line 10 of WM2 0 4 VDC Current converter at supply line 11 of WM2 0 4 VDC Current converter at supply line 12 of WM2 0 4 VDC Current converter at supply line 13 of WM2 0 4 VDC COIN DAD Mm 43 0 hy Current converter at supply line 14 of WM2 0 4 VDC X5 RJ45 Analog inputs for the current converter evaluation for string current measurement Pin Signal description 1 OV potential for the analog signals of the converters for string current measurement Current converter at supply line 15 of WM2 0 4 VDC Current converter at supply line 16 of WM2 0 4 VDC Analog input 17 freely available Analog input 18 freely available Analog input 19 freely available Analog input 20 freely available col D WM 3 0 n2 Analog input 21 freely available X6 RJ45 Analog inputs for the current converter eva
9. 8 Bridge analog inputs 4 3 3 Mounting rail for cable strain reliefs Both following figures show the rail by which the strain relief of the supplied and led away lines can be realized Figure 10 Central Box Mounting rail Figure 11 Central Box Strain relief Page 20 Central Box User s Manual ancon 5 Function 5 1 The Central Box collects supply lines from the TGA Boxes Pro The PADCON Central Box is an array combiner used as a device for collecting of the individual supply lines from the TGA boxes of the photovoltaic plant The DC supply lines collected in the Central Box are led to the inverter via a collecting main 5 2 The Central Box fuses the supply lines against fault current Additionally the individual supply lines plus and minus are fused in the Central Box by NH1 fuses against overcurrent reverse current and earth fault current 5 3 The Central Box protects PV plants against surge voltage on the DC side The Central Box protects the PV plant against surge voltage with help of surge arresters 4 message windows are placed on the 4 surge arresters 2 Central Box Plus 2 Central Box Minus used in the Central Box that indicate the state of the surge arresters A green message window indicates that the surge arrester is operational A red message window indicates that the surge arrester is out of operation That means that an incorrect surge voltage occurred that the surge arrester has tripped
10. DC voltages are applied to different components of the Central Box All operations described in this chapter excludedly may be led through by qualified technical personal Qualified means that the personal is trained appropriately to the task All safety notes mentioned in the user s manual have to be observed during operations at the Central Box 9 Ifyou are not able to remove an error with help of this manual please immediately contact PADCON 4 1 Installation 4 1 1 Place of installation Easily accessible Connections have to be accessible No constraining objects in immediate surrounding Allow possibility for yearly maintenance mowing the lawn cleaning housings 4 1 2 No direct weather influence e Avoid direct strong sun irradiation e Protect against direct rain e Protect against standing water 4 1 3 Cable connection e Outputs on the side e Inputs at the bottom e Observe correct string assignment e Retighten cable glands Central Box User s Manual Page 11 4 1 4 Installation of the housing e Mount housing tension free e Avoid mechanical tension by screws e Adjust mechanical tensions with buffers if necessary 4 1 5 Mechanical installation of the Central Box e Solid and even mounting surface e Observe complete rest of the flange area of the optional available mounting brackets e Use all four fastening screws 4 1 6 Horizontal mounting e Check mounting and repair if necessar
11. Minus ssssseseseeeeeeeeneeeen enne nnne en nennen ennt innen nennen intret nennen 8 2 3 Delivery CONTENTS eec erenc E tex a E eee stacaseses ocd ect an pes om eee ves aaea OEE aarete 8 3 Technical data and documents nie titii cece ded eiae e FERT ee etc eed rA Ext std eate ne eae uade 9 3 1 Specifications eiie teet ue sa eec oerte eres alie ereptus de tato raise ce exea de dva pterea duele 9 3 2 Dimensions of the Central BOx eessissseseseesee essen enne trennen nnns nntr innen entente nennen 10 4 Installation Connection seisine enie mne enen entem nr neris sees entente esse sessi tenes sss e enses nnns essen 11 CEShECEWDILE p 11 4 1 1 Place of installation ort Doe teo a T noL cade obe eae 11 4 1 2 No direct weather influence ssessesseeseeseeesesenee entente entren tnnt tenent entente 11 p S Eolo Neejejel Tono ee 11 41 4 Installation of the lio using eric terea aaen du ence Lee ae Ne ea ce TRE aaaea 12 4 1 5 Mechanical installation of the Central Box sees eren nne 12 4 1 6 Horizontal MOUNTING hedera tore saca pedea ge taceo teo egeo ecl ta Se ea Re ra Bon a ORO aea EE 12 4 1 7 Realize drip off loop for inputs sess eene nnne aea ae Ea Edea EEEE nares A EOE EEES 12 4 1 8 Cable COMGUCU sccaic p E 12 APA EIE EE M 12 4 3 Terminal description of the Centra
12. Minus 1000V DC side monitoring AC side monitoring AC grid Protected earth conductor Communication line S Lm Temp 0 to 10V DC side monitoring Central Box Inverter Grid Plus Minus AC side monitorin Communication line Sensor Box Figure 12 Evaluation of the current measurement in the Sensor Box Besides the voltage of the collecting mains also the current of the 16 supply lines from the TGA Boxes is monitored in the Central Box Minus The measured values of the monitored current are made available at terminal XM1 Current monitoring in the Central Box Minus range Tap 1 current converter per supply line 16 current converters Input current value 0 to 100 ADC range Measured signal value Oto 4 VDC Table 7 Current monitoring Signal evaluation Page 22 Central Box User s Manual ancon 5 4 2 Evaluation of the voltage monitoring The voltage applied to the collecting mains in the Central Box Plus and the Central Box Minus is monitored with a sensor and the measured value is made available at terminal XM1 The plus potential of the voltage is measured at WP1 in the Central Box Plus The minus potential of the voltage is measured at WM1 in the Central Box Minus A connection is established between Central Box Plus and Central Box Minus for voltage measurement The both monitored voltage potentials are i e the plus and the minus pole
13. Voltage check Nominal voltage nonexistent The wiring has to be checked Polarity reversal Correct polarity Current check Polarity The current of the inputs must be equal to the output The wiring has to be checked current Polarity reversal Correct polarity Ground fault error Insulation fault Ground fault error Check if the attached voltage is higher than 1000 VDC If not replace the surge arrester Table 10 Fault analysis 7 2 Decommissioning and demounting of the Central Box Danger Danger of life by electrical shock High DC voltages are attached to the different components of the Central Box All works described in this manual must exclusively be executed by qualified technical personal Qualified means that the personal has to be trained corresponding the task that has to be executed All safety instructions mentioned in the user s manual have to be obtained working on the Central Box The personal has to be familiar with the content of the user s manual e If you can not repair an error with help of this manual immediately contact PADCON Disconnect the inverter on the AC side Switch the inverter currentless on the DC side Disconnect the outputs of the Central Box from the equipment Disconnect the inputs of the Central Box from the generator Disconnect the earthing Demount the Central Box Qi mou D Page 28 Central Box User s Manual ancon
14. and has to be changed 5 3 1 Evaluation of the surge arresters of the Central Box The surge arrester of the Central Box is evaluated by a remote signal contact ncc Status Beschreibung 2o q Contact closed Operational F100 15 T Contact Inoperative when one of the message windows indicate red i oot Opened Table 6 Remote signal contact Additional for evaluation of the surge arrester states message windows are placed on the 6 surge arrester modules that indicate the state of the corresponding modules See 6 5 Protection against surge voltages Central Box User s Manual Page 21 5 4 Monitoring String current and string voltage 5 4 1 String current measurement The Central Box is used for string monitoring The current of each individual string is measured for this purpose by a current converter in the Central Box Minus and the analog measured value is transmitted into the Sensor Box The measured values are digitized in a cRIO controller in the Sensor Box and transfered via the communication line into the control station of the photovoltaic power plant Figure 12 Evaluation of the current measurement in the Sensor Box illustrates the interconnection the string current measurement in the Central Box Minus and the transfer respectively the further processing of the measured current value PV TGA Box Modules Pro Irr 4 to 20 mA r o Q o 2 a DC Plus 1000V DC
15. arresters for the DC supply lines 1 QEOEE eE CO Bus bar for the PE connections Placed in the Central Box Plus base Table 1 Central Box Plus Components Central Box User s Manual Page 7 2 2 Overview of the Central Box Minus Central Box Minus Components 9 9 CQ 6 amp m Number Description 14 NH1 fuses for the individual minus strings 14 Current converters for the individual minus string current measurement 2 Collecting mains Fuses for the surge voltage arresters Terminal block surge arrester monitoring and the connection of the different sensors irradiation temperature etc Surge arresters for the DC supply lines Fuses for the voltage monitoring line to the Central Box Plus Voltage converter for the string voltage measurement 3 way isolation amplifier 4 20 mA gt 0 10 V Adapter board for the DC string currents and the DC voltage measurement and additional free available analog inputs 1 a cobbe eeooo Bus bar for the PE connections Placed in the Central Box Minus base Table 2 Central Box Minus Components 2 3 Delivery contents e Central Box e User s Manual e 14 NH1 fuses Page 8 Central Box User s Manual ancon 3 Technical data and documents 3 1 Specifications HOUSING Open field installation UV resistance Material Prop
16. erties Coloring Mounting INPUT VALUES Max valid DC voltage Upc max Number of DC inputs per box String connection Fuse Max valid DC current Imax OUTPUT VALUES Main connection Number of DC outputs Max output current Ipc tot Protective conductor connection DIMENSIONS AND WEIGHT Cabinet Width Height Depth mm Base Width Height Depth mm Weight STANDARDS CE conformity PROTECTIVE CLASS AND ENVIRONMENTAL CONDITIONS Protection class conforming to EN 60529 Valid surrounding temperature T in C Rel air humidity non condensing U 4 Max height above mean sea level MSL FURTHER PROPERTIES Over voltage protection Monitoring Yes Yes Fiber glass reinforced polyester High flame resistance weatherproof RAL 7035 On foundation base lt 1000 V max 14 Cable lug M10 63A 250A 140A Cable lug M12 2 max 2 x 540A 16 mm 120 mm 1115 1100 327 1115 902 310 ca 80 kg depends on configuration Yes IP 44 25 C 40 C up to max 90 1 000 m Type 2 Type 1 optional Current and voltage optional Central Box User s Manual Page 9 3 2 Dimensions of the Central Box 1100 _ 1115 327 Figure 2 Cabinet dimensions 902 EL _ 1115 310 Figure 3 Base dimensions Page 10 Central Box User s Manual Pancon 4 Installation Connection Danger Danger to life by electric shock High
17. f the safety instructions listed here and in the following sections Observation of the instructions in the user manual Conformance to the device dependent technical data Personnel Only qualified technical personnel may perform any and all work on the Central Box Qualified means that the personnel must possess training relevant to the activity performed and must be familiar with the content of this manual The personnel must have read and understood the safety section in this manual About this manual This manual was written with the greatest possible care However discrepancies cannot be excluded PADCON accepts no responsibility or liability for injury to persons or material damage caused by mistakes in this manual Checking the delivery Upon receipt of the equipment check the packaging and the device for any possible damage and compare the contents of the delivery with the delivery documentation In the case of damage to the device and or unclear delivery contents please immediately contact PADCON GmbH see contact address on the last page Storage The PADCON Central Box may only be stored in rooms protected from dust and moisture Installation The requirements relating to the installation site the manner of installation and the mounting position must be observed In addition to this the following points must be noted The installation location must be easily accessible and offer a secure base for working on the device T
18. ge monitoring Signal evaluation Page 24 Central Box User s Manual Pancon 6 Function check 6 1 General checks 6 1 1 Visual check e Completeness of wiring Snap in of the clips e Proper input wiring Proper fit of connectors Possible danger for man and material 6 1 2 Mechanical check Tight fit of fuses Tightening torque of cable glands 6 1 3 Electrical check e Check correct string assignment e Appropriate string current flow See 7 Fault analysis Decommissioning e Appropriate open circuit voltage See 7 Fault analysis Decommissioning 6 2 Check of the plus and minus string fuses 6 2 1 Visual check Visible damages in and outside of the housing Proper installation of the fuses Surge arrester indicator on Green 6 2 2 Electrical check e Current flow via earth e Current flow current direction Central Box User s Manual Page 25 6 3 Collecting function of the Central Box 6 3 1 Visual check e Function of the string fuses e Proper connection of the inputs e Proper connection of the outputs 6 3 2 Mechanical check Proper sealing of the cable glands e Firm hold of the connection the connection terminal 6 4 Electrical check Polarity of current direction Compare input and output current 6 5 Protection against surge voltages 6 5 1 Visual check The Central Box protects the PV plants against surge voltages on the DC side Mes
19. his is especially important for roof mounted systems The Central Box is built using the latest technology according to recognized safety standards Despite this a fault resulting in arcing cannot be ruled out This can result in melting of the enclosure as well as fire and smoke which may represent a hazard to personnel or equipment This must be taken into consideration upon installation The equipment may not be installed near to inflammable materials If this cannot be avoided preventative measures must be taken which prevent fire and smoke from spreading The equipment may not be installed in critical areas escape routes living spaces or office spaces Special Hazards of Photovoltaic Systems Photovoltaic systems have special characteristics representing special hazards that are described here An active power source is connected which means that depending on the operating mode there may be voltage present from the photovoltaic generator and or the Central Box This is especially important to note when disconnecting the Central Box High DC voltages are connected no zero crossing that in case of error or unproper use of fuses or connectors may result electric arcs The short circuit current of the photovoltaic generator is only slightly higher than the maximum operating current and is also dependent on the level of solar radiation which means that if a short circuit occurs in the system the existing circuit breakers are not gua
20. l BOX ccccccccccccsssssssseceecessesenaeeeceeecesseeeeeseceesesssesesaeeeeeescuseasaeeeeeens 13 4 3 1 Connection of the Central Box Plus eeeecceesceceeceeceeeeeaeeeeaaeeeeaeeceeeeessaeeeneaeeseaeeessaeeeeaaeeeaaeeeeees 13 4 3 2 Connection of the Central Box Minus essen enne emnes 16 4 3 3 Mounting rail for cable strain reliefs ccccccccccsssssssseececessesseeseeeeeceeseseaaeeaeceeeceseesesasaeeesesesesseaees 20 Di PUNCU OM Em 21 5 1 The Central Box collects supply lines from the TGA Boxes Pro essere 21 5 2 The Central Box fuses the supply lines against fault current esses 21 5 3 The Central Box protects PV plants against surge voltage on the DC side eeeeesese 21 5 3 1 Evaluation of the surge arresters of the Central BOx sesssseseseeeeeee nennen nennen 21 Central Box User s Manual Page 3 5 4 Monitoring String current and string VOltage cccecccccsssseceessececeessecececseeeeceesseeecsesaeeeceesaeeeceaeeeeeses 22 5 4 1 String current measurement enne nnn nennen ness senses ss ss esse sess es ss isis es ss esse sess senis 22 5 4 2 Evaluation of the voltage MONItOriNg ccccccssececesssececessececssssececeesseeecseaeceseesesseeeesesaeeeesesaeeesenaes 23 6 FUNCTION CHECK cep 25 omEe ICcegl cm deeded sede eesbccow sak Henseenk oh Deteod e a een Ase ees
21. luation for string current measurement Pin Signal description 1 OV potential for the analog signals of the converters for string current measurement Analog input 22 freely available Analog input 23 freely available Analog input 24 freely available Analog input 25 freely available Analog input 26 freely available Analog input 27 freely available COIN DD WB Ww No Analog input 28 freely available PE bus bar in the Central Box base Screw terminal Signal description 1 to 10 Up to 10 screw terminals can be sticked to the PE bus bar for the necessary PE connections Table 5 Central Box Minus Terminal description Note Observe tightening torque The torque of the individual lines mentioned below has to be observed during connection See Table 4 Central Box Cable cross sections and torques Central Box User s Manual Page 19 4 3 2 1 Configuration of the PSC 1 1 Note E PSC 1 1 adapter board 1 Not used inputs has to be connected with groung during connection of the PSC 1 1 adapter board 2 The freely available analog inputs have to be connected from the bottom to the top 8 free analog inputs Ground eee Analog input 1 2 8 Connect from Bridge not bottom to top connected 8 inputs Figure 9 Connect analog inputs from bottom to top Bridge pins 4 and 5 Figure
22. oltage current converter Adapter board PSC 1 1 X1 Power supply Screw terminal Signal description 1 OV power supply 2 15V power supply 3 15V power supply X2 Analog inputs for free use Screw terminal Signal description 1 OV potential for analog inputs 2 OV potential for analog inputs 3 OV potential for analog inputs 4 OV potential for analog inputs 5 OV potential for analog inputs 6 OV potential for analog inputs 7 OV potential for analog inputs 8 OV potential for analog inputs 9 Analog input 1 freely available 10 Analog input 2 freely available 11 Analog input 3 freely available 12 Analog input 4 freely available 13 Analog input 5 freely available 14 Analog input 6 freely available 15 Analog input 7 freely available 16 Analog input 8 freely available X3 RJ45 Analog inputs for the current converter evaluation for string current measurement Pin Signal description 1 OV potential for the analog signals of the converters for string current measurement Current converter at supply line 1 of WM1 0 4 VDC Current converter at supply line 2 of WM1 0 4 VDC Current converter at supply line 3 of WM1 0 4 VDC Current converter at supply line 4 of WM1 0 4 VDC our HRl W rN Current converter at supply line 5 of WM1 0 4 VDC Page 18 Central Box User
23. per function 12 month Check the mounting place of the Central Box for easy access secure 12 month stand and flammable materials Table 11 Central Box maintenance Central Box User s Manual Page 31 10 Spare parts Following spare parts are available for the Central Box e Fuse e Fuse base e Cable gland e Housing lock e Tools Page 32 Central Box User s Manual ancon 11 Service Contact PADCON GmbH Steigweg 24 Geb ude 44 97318 Kitzingen Germany Tel 49 0 9321 2680 200 Fax 49 0 9321 2680 9200 E Mail info at padcon com www padcon com Service and Complaint Your primary point of contact for any service issues is Sascha Machner with his competent team Tel 49 0 9321 2680 222 e mail service at padcon com PHOTOVOLTAIK TECHNIK PADCON Future technologies b Central Box User s Manual Page 33
24. r supply OV Power supply 15V Power supply 24V Power supply PE Protective earth X2 Sensors irradiation temperature etc Spring terminal Signal description 21 3 way isolation amplifier 4 20 mA gt 0 10 V minus input 22 3 way isolation amplifier 4 20 mA gt 0 10 V plus input 2 3 way isolation amplifier 4 20 mA gt 0 10 V measuring signal PE Protective earth 24V Sensor 3 Power supply OV Sensor 3 Power supply 3 Sensor 3 measuring signal PE Protective earth 24V Sensor 4 Power supply OV Sensor 4 Power supply 4 Sensor 4 measuring signal PE Protective earth 24V Sensor 5 Power supply OV Sensor 5 Power supply 4 Sensor 5 measuring signal Central Box User s Manual Page 17 PE Protective earth X3 Power supply Spring terminal Signal description 24V Power supply 24V Power supply 24V Power supply OV Power supply OV Power supply OV Power supply Voltage measurement to Central Box Plus F1C Screw terminal Signal description 1 Central Box Plus is connected with Central Box Minus for the voltage measurement This connection is established between the fuses F1C of the Central Box Plus and the fuse F2C of the Central Box Minus At this point here the connection for the Central Box Minus is attached to the screw terminal of fuse F2C V
25. ranteed to switch off A highly branched generator array may be difficult to disconnect if a fault develops e g short circuit We recommend the additional use of the optionally available DC circuit breaker for disconnecting the inverter Changes modifications or additions of the Central Box Danger Danger in case of changes modifications or additions of any components of the Central Box No changes modifications or additions of any components of the Central Box are allowed without prior agreement of Padcon Page 30 Central Box User s Manual ancon 9 Maintenance Danger Danger to life by electric shock High DC voltages are applied to different components of the Central Box All operations described in this chapter excludedly may be led through by qualified technical personal Qualified means that the personal is trained appropriately to the task All safety notes mentioned in the user s manual have to be observed during operations at the Central Box 9 Ifyou are not able to remove an error with help of this manual please immediately contact PADCON Following table gives an overview of the different maintenance working that have to be led through at the Central Box and the recommended maintenance interval Central Box Maintenance Maintenance working Maintenance interval Check the terminal clamps of the power wiring for solidi
26. sage windows are placed on the surge arresters that indicates the states of the surge arrester State Color Description Green Operational Red Inoperative if one of the message windows indicates red Table 9 Message window The surge arrester has to be replaced if one of the 4 surge arresters 2 Central Box Plus 2 Central Box Minus of the Central Box has tripped to guarantee surge protection furthermore See 7 Fault analysis Decommissioning Message window state Proper connection of the surge arrester Possible danger for man and material 6 5 2 Electrical check Page 26 Central Box User s Manual Earth fault current Voltage applied to the surge arrester 6 6 Disconnection function between inverter and PV plant Pancon Function of the string fuses Function of the surge arrester Central Box User s Manual Page 27 7 Fault analysis Decommissioning 7 1 Fault analysis Fault analysis Visual inspection Fault description Measure Damage of the housing The housing has to be changed Damage of the cable glands The cable glands have to be changed Damage of the cables The cables have to be changed Damage of the NH1 fuse bases The NH1 fuse bases have to be changed Damage of the terminal blocks The terminal blocks have to be changed Damage of the PSC1 1 adapter board The PSC1 1 adapter board has to be changed
27. tage of the collecting mains is monitored in the Central Box Plus As well the voltage of the collecting mains as the current of the supply lines coming from the TGA Boxes are monitored in the Central Box Minus Central Box Plus e The Plus supply lines from the TGA Boxes are collected in the Central Box Plus e Upto 14 DC supply lines can be attached in the Central Box Plus e The supply lines are fused by NH1 fuse links Central Box User s Manual Page 5 e The supply lines are protected against surge voltage e The voltage of the collecting mains is monitored Central Box Minus with current and voltage monitoring e The Minus supply lines from the TGA Boxes are collected in the Central Box Minus e Upto 14 DC supply lines can be attached in the Central Box Minus e The supply lines are fused by NH1 fuse links e The supply lines are protected against surge voltage e The current of the 14 supply lines is monitored e The voltage of the collecting mains is monitored Page 6 Central Box User s Manual ancon 2 Product description Delivery contents 2 1 Overview of the Central Box Plus Central Box Plus Components Cypher Number Description 14 NH1 fuses for the individual plus strings Collecting mains Fuses for the surge voltage arresters Terminal block for the surge arrester monitoring Fuse for the voltage monitoring line to the Central Box Minus Surge
28. ty and retighten 12 month if required Visually check the insulation and the terminals Thereby look after changes and discoloring of the material Immediately change defect or corroded lines and contacts Check the terminal clamps of the string wiring for solidity and retighten 12 month if required Visually check the insulation and the terminals Thereby look after changes and discoloring of the material Immediately change defect or corroded lines contacts and connectors Check the correct and horizontal mounting of the Central Box 12 month Check the locks of the cover of the Central Box for free movement and 6 month correct function Check the cable glands for tightness and firm fit Immediately change 6 month defect or untight cable glands Check if condensed water has accumulated in the Central Box 6 month Check the earth connection respectively the contact resistance of the 12 month protective conductor The function of the voltage converter has to be checked 12 month The wiring of the voltage converter has to be checked 12 month The function of the current converters has to be checked 12 month The wiring of the current converters has to be checked 12 month Check the ventilation membrane for pollution respectively damage 12 month Immediately change a defect or damaged ventilation membrane Check the fuses after removal from the fuse holders 12 month Check the surge arresters of the Central Box 12 month Check the DC contactors for pro
29. ult in death or serious injury Danger Warning indicates a hazardous situation which if not avoided could result in death or serious injury Warning Caution indicates a hazardous situation which if not avoided could result in minor or moderate injury Caution Storage of documentation This operating manual the installation guide the data sheets the operating manuals of installed components and the wiring diagrams must be kept in the immediate vicinity of the Central Box They must be available to operators and maintenance staff at all times Failures and correction Failures that can affect the safety have to be removed immediately Impermissible change and the use of spare parts that are not recommended from PADCON can cause fire material damage or electrical shocks Unauthorized persons must nut have access to this devices Instruction labels have to be readable properly and have to be replaced immediately if damaged Central Box User s Manual Page 29 Appropriate usage Appropriate use of the Central Box means following all instructions in the installation manual relating to installation electrical connection and commissioning of the equipment Any deviation from the instructions in this manual is regarded as inappropriate use of the equipment PADCON accepts no responsibility or liability for any and all damage resulting from inappropriate use of the equipment Appropriate use of the equipment also entails Observation o
30. y 4 1 7 Realize drip off loop for inputs e Imply reserve e No horizontal cable routing 4 1 8 Cable conduct e Avoid mechanical tension of inputs e Conduct cables without mechanical tension e Avoid crossings in wiring 4 2 Installation Disconnect the inverter on the AC side Switch the inverter currentless on the DC side Mount the Central Box Connect the protective earth conductor Connect the inputs of the Central Box Connect the outputs of the Central Box with the inverter Switch on the current on the DC side Put the inverter into operation We recommend to check the polarity and height of voltage of the strings before installation and to calibrate the input values of the inverter after installation po gY UI ULP 0D NA ES Danger The five safety rules The five safety rules Disconnect Secure against restart Check absence of voltage Earth and short circuit Fence off and cover adjacent live parts Page 12 Central Box User s Manual ancon 4 3 Terminal description of the Central Box 4 3 1 Connection of the Central Box Plus Figure 4 Central Box Plus Connection 1 97 MCI Figure 5 Central Box Plus Connection 2 Central Box User s Manual Page 13 Central Box Plus terminal description String supply lines to the NH1 fuses of WP1 Screw connection Signal description String supply lines 1 to 7 e
Download Pdf Manuals
Related Search