ABB MNS System Guide - Switch Gear by Control Equipment Limited
Contents
1. position Switch disconnector option ACB handling truck Configuration and test unit ACB withdrawable operation In a withdrawable solution the ACB assembly consists of two components the fixed part cassette and the moving part ACB This enables the ACB to be located in 3 positions CONNECTED The moving part is fully inserted into the fixed part with the connection of both the power terminals and the auxiliary contacts The circuit breaker is operational and the mechanical indicator shows CONNECTED TEST ISOLATED The moving part is inserted into the fixed part without the connection of the power terminals but with connection of the auxiliary terminals The circuit breaker may be operated for offline tests The mechanical indicator shows TEST ISOLATED DISCONNECTED The moving part is inserted into the fixed part without any connection of the power and auxiliary terminals In this position all electrical operation of the ACB is prevented The mechanical indicator shows DISCONNECTED The switchgear compart ment door can remain closed therefore not compromising the IP rating of the switchgear The ACB cassette fixed part has shutters which are positively driven closed during the racking out process to prevent the possibility of contact with live parts Integration into plant wide Control Systems System Connectivity Aspects ABB s structure with respect to offering site wide infor2. MNS System Overview Typical Set up 1 li nn T en qu j i ULAT 1 Lil UN al i a gg Mill TA q Sg Mii T Baa A A eee A A A A A AAA AAA AAA AAA ET E A PPP PP PC PC E E A E E E A A A E EEE E EE E ae a era e e e e ALOE NTT poo II ie TTT Jiao fal A me Aa N A el o A a A CI CI IN es OA ABB s world wide competence is second to none this is possible due to the global MNS switchgear platform and local ABB manufac turing facilities ABB ensures conformance to IEC 61439 1 2 throughout these locations with a proprietary switchgear engineering tool This tool provides a comprehensive database with predefined engineering solutions for MNS This database is then utilized with minimal engineering effort to provide customer specific solutions thus meeting local specifications Where specific solutions are required on a global basis these can easily be deployed throughout the ABB manufacturing facilities network thus significantly reducing project lead times Standards Test certificates Electrical data Mechanical characteristics Optional Extras available on request Technical Data Rated voltages Rated current Arc Fault Containment Forms of separation Dimensions Degrees of Protection Steel components Surface protection Paint Plastic components Busbar system Special qualification Pai
3. Requirements related to accessibility for inspection and similar operations ici SA ia Requirements related to accessibility for maintenance in service by authorized persons oe SPEO ii Requirements related to accessibility for extension in service by authorized persons a GAZA ii Method of functional units connection 8 9 1 8 9 2 NOTE This refers to the capability of removal and reinsertion of functional units Protection against direct contact with hazardous live internal parts during maintenance or upgrade 8 4 e g functional units main busbars distribution busbars Method of functional units connection 8 5 101 NOTE This refers to the capability of removal and reinsertion of functional units Form OF separation aaa A IRI IE III III Capability to test individual operation of the auxiliary circuits relating to specified circuits while the 3 1 102 3 2 102 3 2 103 8 5 101 functional unit is isolated Table 103 Current carrying capability Rated current of the ASSEMBLY InA Amps 3 8 9 1 5 3 8 4 3 2 3 8 5 3 8 8 aaaea 10 10 2 10 10 93 10 11 5 Annex E Rated current of circuits Inc AMPS nea O ssssstntnuveetstnuvuretetstsiveetetete Rated diversity factor eee 9 3 3 10 10 2 3 Annex E Ratio of cross section of the neutral conductor to phase conductors phase conductors up to and 8 6 1 including 16 mm NOTE Current in the neutral may be influenced where there are significant harmonics unbalanced phase currents or other
4. conditions in the load that will necessitate a larger conductor n Ratio of cross section of the neutral conductor to phase conductors phase conductors 8 6 1 above 16 mm NOTE For the standard value the neutral current is assumed not to exceed 50 of the phase currents Current in the neutral may be influenced where there are significant harmonics unbalanced phase currents or other conditions in the load that will necessitate a larger conductor Contact us ABB Low Voltage Systems Note Publication Editor We reserve the right to make technical changes or ABB Automation Products GmbH modify the contents of this document without prior notice With regard to purchase orders the agreed particulars shall prevail ABB does not accept any responsibility whatsoever for potential errors or pos sible lack of information in this document Ladenburg Germany Local Contacts on www abb com mns We reserve all rights in this document and in the subject matter and illustrations contained 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 Publication no Druckschriften Nr 1TGC902030B0202 Copyright 2009 ABB All rights reserved Power and productivity A for a better world PA ED BD
5. control circuit All main and auxiliary connections are self connected padlocking possible locating without the need of additional tools ISOLATED Module is withdrawn 30 mm from ON Module is inserted main switch closed the inserted position main switch open main main and control circuit connected and control circuit disconnected padlocking possible OFF Module is inserted main switch open main and control circuit disconnected padlocking MOVE Module may be completely withdrawn possible from the switchgear All positions situations are clearly marked on the fixed section of the operation handle in accordance with IEC 61439 1 2 System Highlights High stacking density resulting in a reduced footprint Complete phase isolation of main power contact prior to connection to the distribution bars Full module functionality with external operation Module replacement possible in less than 1 minute no tools required Incoming Solutions All of the MNS incoming solutions are verified in In order to satisfy all requirements there are accordance with IEC 61439 1 2 in addition to three main switch incoming options IEC 60947 1 required for the individual appara Load break switches tus and engineered to meet the requirements Moulded case circuit breakers MCCBs of IEC 61641 This ensures ABB s offering of Air circuit breakers ACBs Proven Safety Plus for operators and plant Please refer to the technical referenc
6. or between main busbars and equipment compartment The insulation material is CFC and halogen free it is also flame retardant and self extinguishing Power Contact Connection to the distribution bar is realized using the precision engineered MNS power contacts The power contact is characterized by a turnable bearing thus decoupling cable stress and electrical contact Consequently any cable bending forces cannot affect the stability of the power contact The mechanical stabilisation is achieved by the supporting plate and the contact spring where the contact fingers ensure positive electrical contact Contact fingers are silver plated as standard The contact has been subjected to several tests in order to prove the sophisticated design and the high quality which provides a life cycle up to 1000 Insertions Tests Design verification acc IEC 61439 1 2 Corrosion test acc DIN 50017 and IEC 60068 2 60 Crimping quality check acc IEC 61238 1 Vibration and shock test acc IEC 60068 2 6 and IEC 60068 2 27 System Highlights Operational life cycle up to 1000 insertions independently certified Bearing construction eliminating cable stress Full single phase segregation assured prior to the connection of the power contacts to the distribution bars Outgoing Modules Personal Safety Withdrawable Modules Time effort Tools for module required exchange Plug in Slimline for M
7. the basic characteristics of an intelligent motor control system IMCS Micro processor protection monitoring and control of motor and distribution circuits Interfacing to host systems via fieldbus communications Fieldbus Ethernet User Interface Parameterization After Sales and Service Plant Availability Asset Monitoring Condition Monitoring Continuous Maintenance and Spares Holding Commissioning ABB s goal is to ensure the assets maximum performance and availability ABB has supplied over 1 4 million MNS cubicles from its world wide manufacturing locations Each of these locations operates with an After Sales and Service depart ment offering unparalleled global support On completion of commissioning the switch gear is at the peak of its performance lo maintain this condition it is essential to adopt a service and maintenance plan for this asset If the switchgear does not receive maintenance this could result in downtime In production the availability of the switchgear ensures productivity and any down time is a lost opportunity for profit Down time can be attributed to the following maintenance practices Reactive maintenance is costly for both production and unplanned downtime Preventive or Continuous maintenance is usually performed on an annual basis during a scheduled shutdown By evaluating information from the intelligent switchgear it is possible to adopt a Predict
8. MNS Low Voltage Switchgear System Guide Power and productivity A ED ED for a better world P A ED ab MNS is a registered trademark Product names of other products are registered trademarks of their manufacturers or owners Technical descriptions relate to MNS 3 0 ABB assumes no responsibility for any errors that may appear in this document In no event shall ABB be liable for direct indirect special incidental or consequential damages of any nature or kind arising from the use of this document nor shall ABB be liable for incidental or consequential damages arising from use of any software or hardware described in this document This document and parts thereof must not be reproduced or copied without ABB s written permission and the contents thereof must not be imparted to a third party nor be used for any unauthorized purpose The software described in this document is furnished under a license and may be used copied or disclosed only in accordance with the terms of such license All rights reserved Copyright 2009 O ABB Automation Products GmbH Ladenburg Germany MNS System Guide This guide is intended to be used along with other publications related to MNS Low Voltage Switchgear such as MNS Service Manual Erection Operation and Commissioning Publication no 11GC902006M0402 MNS Safety Aspects Publication no 11GC900009B0201 Further information on the integrated switch gear platform MNS S can be obtained
9. anding back to back or duplex Switchboard Dimensions MNS cubicles have the following representative dimensions 2200 mm O iy i Switchgear Design E Mechanical Design Frame construction The basic elements of the MNS frame construction are C shaped steel profiles with a 25 mm hole pitch according to DIN 43660 This 25 mm equals the dimension of 1E used in MNS to define the area usage within the switchgear Each cubicle is precision constructed by bolting horizontal and vertical profiles together to form a rigid modular structure The assembly is maintenance free as a result of the construction method utilizing a combination of thread locking ESLOK screws with bolted pressure plates and thread forming screws The profiles are galvanic protected Zn or Al Zn against corrosion Enclosure MNS switchboard enclosure is made of sheet steel protected by galvanic coating and powder coating for maximum durability The fixing of the enclosure with respect to doors roof plates rear and side walls is achieved with thread forming screws Final construction varies depending upon the required degree of protection In accordance with the general safety philosophy followed with MNS each compartment and sub compartment which requires access for commissioning operation or maintenance has its own door Switchgear Design Busbar System Main Busbars The busbar system is a maintenance free
10. anical and plant associated Each condition has a cause and suggested action for problem resolution Asset monitoring sets the next standard for integrated maintenance procedures enabling higher switchgear availability through Proactive maintenance Items subject to agreement between manufacturer and user The following details are intended as a checklist for the specification of low voltage switchgear Extract from IEC 61439 1 2 User defined functions and characteristics Reference clause for Parts 1 and 2 Electrical system Alto nenas 9 9 6 4 9 2 3 8 6 2 10 5 ILA Rated vokage Ui AOL S ie eee eee aa aaa iasa atol ee ete A ae Overvoltage ARMA a ssusmunununiununianausienusianusianenusnenuusieiusneiuneneinsieuneieineieinseneeneiee 5 2 4 8 5 3 9 1 ANNEX Q Unusual voltage transients voltage stresses temporary overvoliages nn A ENI ee Rated frequency fn AZ unnuninnianinanininiaiiuianiiaiiinianinaninniiniieninniuineninnneninnee 3 8 11 9 4 8 5 3 10 10 2 3 10 11 54 Additional on site testing requirements wiring operational performance and function 11 10 Short circuit withstand capability Prospective short circuit current at supply terminals lep KA ee O RI IERI Prospective short circuit current in the neuiral aaa MOSS ea Prospective short circuit current in the protective circuit nea A eee SIA O A Co ordination of short circuit protective devices 9 3 4 including external short circuit protective device d
11. ation exceptional condensation heavy pollution corrosive 7 2 8 5 4 9 3 3 Table 7 environment strong electric or magnetic fields fungus small creatures explosion hazards heavy vibration and shocks earthquakes User defined functions and characteristics Reference clause for Parts 1 and 2 Installation method e AR OREI RI RN RR A PI RI IN RI NAN RR RR INI RR RR A A i eee dada ea ae ea at a te E tie ant dea A ala da tag ada a Maximum overall dimensions and A a csussusssmssnisusususununusususuususaisisianensnsnanenenenenenenee O N External conductor ype S eee DO NI Direction s Of external conductors nea it External conductor material nn DO External phase conductor cross sections and terminations ne AN External PE N PEN conductors cross sections and terminations cinc O dades Special terminal identification requirements 8 8 Storage and handling Maximum dimensions and weight oi transport units iii 0 2 2 1029 iaa Methods of transport e g forkiift crane eee 0 22 D caia Environmental conditions different from the service conditions re I n Packing details 6 2 2 Operating arrangements ACCESS to Manually operated devices eee AB ii Isolation of load installation equipment items 8 4 2 8 4 3 3 8 4 5 2 Maintenance and upgrade capabilities Requirements related to accessibility in service by ordinary persons requirement to operate devices 8 4 5 1 or change components while the ASSEMBLY is energised
12. con struction as a result of utilizing thread locking The MNS main busbar system is arranged in ESLOK screws together with conical spring the rear of the switchgear This assures a washers This technology remains relatively maximum distance between the busbars and unchanged since the introduction of MNS and the operator and maintenance staff The main has been extensively supplied into the most busbar system is fully separated from the demanding industries equipment compartment as well as from the cable compartment The busbar system and all associated parts are manufactured from copper in accordance with DIN 40500 Options are available for silver plating and or a fully insulated solution utilizing heat shrinkable sleeving Switchgear Design a adi adi A eet J E s Y Da SA 4 a a F i Yi gt EE BI I J pE 4 Protective Earth and Neutral Bars neutral conductor can be arranged within the busbar compartment running in parallel with the As a standard protective earth and neutral main busbars bars run horizontally within the front of the switchboard just above the base The PE bar is fastened to the frame to assure electrical Distribution bars continuity Inside the cable compartment they run vertically located on the front right hand A fully phase segregated and encapsulated side of the compartment 3 or 4 pole distribution bar system runs th
13. e ments for additional external cubicles The modular design offers highest flexibility to adjust the compensation power to changes of the load connected to the network The standard range covers Network voltages up to 690 V m 50 or 60 Hz All common reactor rates if reactor required Modules up to 50 kVar Controllers available for 6 or 12 step options Withdrawable Modules The withdrawable technique has proved to Small modules be the appropriate solution for use in industrial applications where requirements for high Withdrawable technique is distinguished by availability are a must particularly in Motor its compact design where with the smallest Control Centers MCC 8E 4 module it is possible to physically define a maximum of 36 modules in the equipment Modules can be easily exchanged under compartment This modularity enables the operational conditions thus assuring maximum assembly to maximize the usage of the available flexibility space which in turn reduces the overall foot print of the switchgear The condaptor unit enables the horizontal distribution of power from the vertical distribution bars this allows 2 modules 8E 2 or 4 modules Ali 4 8E 4 to be located adjacently within the same b horizontal position in the cubicle Condaptors Pl d a E a are available in 3 or 4 pole options Cable Ez connections for main and auxiliary circuits are TT TT integrat
14. e section of this document for a list of related Incoming options documentation All ACBs have as a minimum the following Further options available but not limited to features Zone selectivity Manual charging lever and Charged indication Dual protection settings Manual Open Close push buttons Directional short circuit protection a Mechanical Open Closed indication Reverse power Mechanical signalling of Overcurrent release Under overvoltage protection 4 auxiliary contacts Annunciation of measured values alarms Maintenance data Project Specific Options Integration into a plant wide process control Gas sealed connections to the main busbars system refer to page 28 separation wall 3 or 4 pole solutions In addition to the above ABB circuit breakers Withdrawable fixed configuration offer a series of integrated programmable Top or bottom cable entry bus duct releases PRs where combinations of 50 or 100 neutral protection functions maybe selected with Shunt opening closing release Overload protection L Undervoltage release Selective short circuit protection S Electrical signalisation of ACB status Instantaneous short circuit protection Key locking facilities Earthfault protection G Shutter locking facilities Mechanical indication Racked In Racked Out Test Isolated position Locking in Racked In Racked Out Test Isolated
15. e full height of the cubicle The distribution bars are For applications where a 50 or 100 neutral silver plated as standard size is required due to unbalance or harmonic distortion as well as for 4 pole switching the System Highlights Maintenance free bus bar construction Easy switchgear extension Main busbar arrangement at the rear thus assuring maximum safety to personnel effective withstand against highest stresses in case of short circuit optimum heat dissipation Gas tight seals for connection from the equipment compartment to the main busbar system Option for Form 4 separation for both incoming and outgoing assemblies Active and passive arc fault prevention tested according to IEC 61641 Isolating materials are free of CFC and halogens N FEE mam 7 Multifunction Wall Contact openings are finger proof IP 2X so that personal safety is guaranteed even when The multifunction wall MPW with the embed modules are removed ded distribution bars is a unique MNS design It constitutes a complete barrier between the With the use of MNS specific power contact main busbars and the equipment compartment housings full single phase segregation is assured prior to the connection of the power The distribution bars are fully phase segregated contacts to the distribution bars and insulated This design makes it virtually impossible for an arc to pass between distribu tion bar phases
16. e the right decision Hospital Zoetermeer Netherlands 6 Features amp Applications The ABB MNS system is a low voltage switch gear assembly lts design is verified in accord ance with IEC 61439 1 2 The consistent application of the modular prin ciple both in electrical and mechanical design as well as the use of standardized components allows its flexible and compact design Depending on operating and environmental conditions different design levels are available Notable system advantages with regard to design aspects Optimum protection for personnel and plant Design verified by testing type tested includ ing arc fault containment High operational reliability and availability Earthquake vibration and shock proof designs are available Maintenance free busbar and frame construction Simple retrofitting procedures Compact space saving design Simplified project implementation utilizing ABB dedicated engineering tool Thus MNS proves to have the approved solution for the following industries Oil 4 Gas on and off shore Chemical Petrochemical Pharmaceutical Power Stations Paper Water treatment Mining Steel Food Marine as well as for infrastructure requirements Data centers Airports Office buildings Shopping centers Hospitals Rail i y 1 i J i ar Li ui LE TI 2c aa a i B PR
17. ean time Modules module to repair exchange MTTR Fixed Modules Required Personnel Qualification Information on request The available module types have typical characteristics as shown in the graphic above Where high process availability is essential and minimal time is required for module exchange the withdrawable solution has proved to be the definitive choice In installations where internal access to the switchgear does not present an obstacle the plug in option may be the practical solution Depending upon the choice of outgoing mod ules selected the skill set of the personnel required to operate and maintain the switch gear may also differ Switchgear requirements differ from project to project MNS easily allows the assembly to be configured to suit all plant operational proce dures Outgoing Modules Ci Outgoing Modules Plug in Modules MNS offer numerous alternatives for plug in modules When utilizing the multifunction wall all modules have the ability to be exchanged without de energizing the switchgear should maintenance procedures allow The flexibility of the system allows power distribution and motor control to be offered in the most economical Form 2 solution From this as a basis options exist for internal exter nal operation and separation to Form 4 The Slimline switch disconnector offers ABB s most compact form of fused energy distribu tio
18. ed into the condaptor and are accessible from the cable compartment Tn 7 Fr Full width modules These modules are available ranging from 4E to 48E in physical sizes The construction of the full modules differs slightly from that of the small modules in utilizing a full width hinged door which is mechanically interlocked to the isolator All operational procedures for the modules are possible without the need to open the door of the module Full width modules connect directly to the distribution bars through the multifunction wall The design of the module enables auxiliary components to be located on both the vertical and horizontal mounting plates within the module thus optimizing the available space usage within the module Cable connections for main and auxiliary circuits are accessible from the cable compartment Module operation MNS modules are operated with the multifunction operating handle This handle also activates the electrical and mechanical interlocking of the module and the module door No further tools or unlocking devices are necessary to withdraw a module thus replacing a module takes less than a minute Replacement as well as retrofit ting of modules can be performed under live conditions should plant operating procedures allow J Gy s ox Pa oe yn FF Mi Fh d 7 le E Withdrawable module positions TEST Module is inserted main switch open main circuit disconnected
19. etails Data associated with loads likely to contribute to the shortcircuit current 9 3 2 Protection of persons against electric shock in accordance with IEC 60364 4 41 Type of protection against electric shock Basic protection protection against direct contact 8 4 2 NOTE This type of protection is intended to protect against electric shock due to direct contact within the ASSEMBLY during normal service AAA Type of protection against electric shock Fault protection protection against indirect contact 8 4 3 NOTE These types of protection are intended to protect against the consequences of a fault within the ASSEMBLY Installation environment Location YPe a csssnuuunuunnnnnnniniininniuuuunnnnnnnnnininninuuunnnnnnnnnnnnnnnuuunnnnnnnnnnnnnnnnnunnnnns 3 5 814 82 ssnnnunnnnnnnn Protection against ingress of solid foreign bodies and ingress of liquid ci 8 2 2 823 ssnnnnnnnnninnnnn External mechanical impact IK 8 2 1 10 2 6 NOTE IEC 61439 1 does not nominate specific IK codes aaa Resistance to UV radiation applies for outdoor assemblies only unless specified otherwise ODA ci Resistance tO COrrOSION nn 1022 ii Ambient air temperature A MRI RI RR RR RI CI Ambient air temperature A MON E Ambient air temperature daily average maximum ne Cl aio ca ia Maximum relative humidity nea A A Pollution degree ea os O eee PA E POS EMC A AAA eee 9 4 10 12 ANNEX J cc Special service conditions e g vibr
20. from MNS S System Guide Publication no 1TGC910001B0203 MNS Switchgear Overview Switchgear Evolution Features amp Applications Typical Set up Technical Data Operational Safety and Availability Switchgear Design Functional Compartments and Segregation Switchboard Arrangements Switchboard Dimensions Mechanical Design Busbar System Outgoing Modules Plug in Modules Withdrawable Modules Incoming Solutions Integration into plant wide Control Systems After Sales and Service Annex ltems subject to agreement between manufacturer and user 11 12 12 13 13 14 19 19 20 22 26 28 30 32 32 MNS Switchgear Overview Switchgear Evolution ABB is the global leader for low voltage switehgear with over 1 4 million MNS cubicles delivered worldwide since the inception of this system in 1973 ABB s history in switchgear can be traced back even further to the 1890 s when we first manufactured switchgear systems in Sweden Hofors Power Station and Rolling Mill 1890 Sweden With these credentials it is no surprise that the MNS system is the benchmark for operational safety reliability and quality ABB draws on this wealth of background knowledge in designing and manufacturing low voltage switchgear for its global and local customers This together with the global service and support network established in over 30 manufacturing locations world wide ensures that the choice of MNS will b
21. ive maintenance schedule Utilizing an ABB expertise can help to increase the life cycle of the switchgear Proactive Predictive Preventive Maintenance Overhaul Reactive Maintenance Life Cycle Regular Services ABB offers comprehensive service and support during the whole life time of the switchgear Engineering assistance Product training Spares holding Installation and commissioning Service planning Hardware and software support Upgrades expansions and modifications e t i 4 2 AT Contract Services ABB can offer comprehensive maintenance contracts designed specifically for each particular process Through preventive maintenance programs unscheduled outages can be reduced and maintenance workflows are streamlined Utilization of integrated switchgear enables the maintenance to be taken into an even pre dictive maintenance practice where information available from the switchgear can further assist with maintenance workflow Asset Monitoring with MNS S In a further step of improving maintenance practices ABB s MNS S platform is a fully self supervising switchgear that can eliminate costs for assets that do not require attention The asset monitor system evaluates all events alarms and trips for predictive maintenance planning and essential working issues The conditions are monitored and entered into groups electrical mech
22. mation is that a field bus connection for process control information and switching commands is utilized An additional interface Process which is typically Ethernet is used to support Control functions such as parameterization data i distribution to electrical SCADA and or asset optimization systems This configuration is also continued through the ABB medium voltage product portfolio Configuring the structure as detailed above ensures that the critical process data path is not compromised by also being utilized for parameterization and additional data required for engineering and maintenance With the introduction of MNS ABB has been providing market leading low voltage switch gear systems technology In 1987 ABB installed the world s first intelligent low voltage motor control center since then ABB has delivered over 100 000 intelligent motor controllers In 2005 MNS S the world s first integrated low voltage switchgear platform was launched MNS S defines the next benchmark in low volt age switchgear providing the following features a Improved personnel safety through a unique design Lower life cycle cost from a totally scalable system Worlds first standardised motor controller and feeder modules World first self Supervising switchgear by the use of asset monitoring Future proof utilizing ABB s patented inter facing technology Asset The MNS S platform offers in addition to the Monitoring above
23. n and is available in 3 or 4 pole options This design is available in standard modules sizes with a maximum rating of 630 A Operation is performed via the handle on the front of the module which has an inbuilt padlocking facility and mechanical open closed indication The following options are available Ammeter Auxiliary contacts Fuse blown indication The Slimline is also available as Intelligent Tier Switch enabling the following information to be sent via its fieldbus connection Switch status Fuse indication Current Voltage Power amp Power Consumption Power factor Temperature Plug in Modules AC Industrial Drives Due to its inherent modular design MNS can easily be adapted to house the ABB range of AC Industrial Drives The switchgear can accommodate multiple drives in a single section Each drive compartment has an individual isolator options are available for filters to be installed and for the drive control panel to be door mounted to enable interrogation and parameterization without the need to open the door Full size cubicles are also available for the AC Industrial Drives solution These are however of a fixed technique enabling MNS to offer a complete range of drives all supplied from a common AC bus Reactive Power Compensation MNS also offers the possibility of integrating reactive power compensation modules into its standard design thus reducing the requir
24. nt Low Voltage Switchgear and Controlgear Assemblies Verification by testing IEC 61439 1 2 ASTA Great Britain resist to accidental arcs acc to IEC 61641 and IEC 60298 Appendix AA DLR German Research Institute for Aerospace e V Julich Earthquake Test for Security Areas in Nuclear Power Stations IABG Industrieanlagen Betriebsgesellschaft Vibration and shock tests Complying with Germanischer Lloyd Hamburg Rated insulation voltage U Rated operating voltage U Rated impulse withstand voltage Uimp Overvoltage category Degree of pollution Rated frequency Copper Busbars Rated current le Rated peak withstand current lpk Rated short time withstand current low Copper Distribution bars Rated current le Rated peak withstand current lpk Rated short time withstand current low Rated operational voltage Prospective short circuit Current Duration Criteria IEC 61641 Cubicles and frames Recommended height Recommended width Recommended depth Basic grid size According to IEC 60529 Frame incl internal subdivisions Cladding internal Cladding external Frame incl internal subdivisions Cladding internal Cladding external Halogen free self extinguishing flame retardant CFC free Busbars Test certificates Enclosure 1000 V 3 1500 V 690 V 3 750 V 67 387 12k Al LI o HZ up to 6300 A upto 250kA up to 100 kA up to 2000 A up to 176kA up to 100 kA 690 V
25. s per a con tinuous develooment program These tests are based on the most critical representative appli cations of the entire product or performance range of the switchgear with respect to the test standard In addition to the above specifications ABB adopted as a standard IEC 61641 for testing under conditions of arcing due to an internal fault To meet the requirements of IEC 61641 the switchgear is connected and supplied cor responding to the normal service arrangement An arc is then initiated within the switchgear the point of ignition is chosen to produce the most stress on the assembly There are five criteria observed for the test in line with its Safety Plus statement ABB ensures that all five are met In addition to these five criteria ABB also meets the addition plant protection criteria as detailed in VDE O660 part 500 For more information on arc fault containment the MNS Safety Aspects brochure delivers essential considerations concerning plant and personnel safety assured by MNS such as Basic safety philosophy Switchgear assembly verified by testing Arc fault protection Degrees of protection IP code Internal separation Earthquake vibration and shock Neutral conductor dimensioning ASTA a lim Arps Be n MEST REPORT TEF Switchgear Design Functional Compartments and Segregation The assembly is divided into compartments thus separating differen
26. t functional areas Incoming circuit breaker solution Eb Equipment compartment The equipment compartment is divided into 3 sub sections each sub section having its own door The center sub section accommodates the circuit breaker and associated equipment in fixed or withdrawable design Depending upon the option for cable entry for example with top entry solution access to incoming connections is via the door in the upper sub section the auxiliary compartment is then located behind the door in the lower sub section For bottom entry the configuration is vice versa Busbar compartment Contains the MNS main busbar system Connection to the main bus is via a Partition Plate with gas sealed connections Outgoing solution Equipment compartment All equipment including the motor starter modules in withdrawable design is situated therein The compartment can be divided into horizontal and vertical sub compartments Cable compartment Contains control cables and terminals as well as power cables and connection units Cable entry may be top or bottom Busbar compartment Contains the MNS main busbar system The distribution bars are embedded in the multifunction wall MFW which is located between the equipment compartment and the busbar compartment Withdrawable solutions only Switchgear Design Switchboard Arrangements MNS cubicles can be arranged as follows free st
27. up to 100 kA 300 ms 1165 Up to Form 4 DIN 41488 2200 mm 400 600 800 1000 1200 mm 400 600 800 1000 1200 mm E 25 mim ace te DINAS600 External from IP 30 to IP 54 Internal from IP 2X 20 SA 15 7 Zomm Wee mMM Zinc or Alu zinc coated Zinc or Alu zinc coated Zinc or Alu zinc coated and Powder coated RAL 7035 light grey IEC 60707 DIN VDE 0304 part 3 Fully insulated with heat shrinkable sleeving Silver plating Tin plating See test certificates listed above Special colours on request Design verification by testing Where an Assembly has previously been tested in accordance with IEC 60439 1 and the results fulfil the requirements of IEC 61439 1 2 the verification of these tests need not be repeated Depending on the electrical equipment Operational Safety and Availability The fulfillment of all instructions of the relevant standard for Low Voltage switchgear and con trolgear assemblies assures a basic level for personnel and system protection With MNS ABB exceeds these levels as a standard This has been proven by type tests in accordance with IEC 60439 1 Test results comply with the instructions of IEC 61439 1 2 so that MNS is a verified design under the terms of this standard The MNS low voltage switchgear system has been subjected to verification by testing in compliance with the standards In order to ensure the highest possible degree of safety ABB continues to conduct tests a
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