Power Transmission and Distribution NXPLUS C double busbar The economical solution when replacing old systems
The compact switchgear system NXPLUS C double busbar up to kv, up to 5 ka and up to 500A the economical solution when replacing old switchgear It s time to replace your existing switchgear? And you want to replace it as quickly and economically as possible? If that s so, the NXPLUS C single and duplicate busbar gas-insulated switchgear is the ideal solution f you. Besides the NXPLUS and 8DJ/H types, NXPLUS C is the only switchgear in the wld with an all-round hermetically tight pressure system inside a seal-less welded stainless steel enclosure f all perfmance classes. That means no wk on the gas system is ever required - neither during installation on site, n throughout the whole service life of the system. And with such a compact design, replacement can take place in existing buildings. These benefit from the use of pressure relief ducts with absber technology designed to relieve the pressure on the individual compartments. High availability of energy supply NXPLUS C is easily extendable, allowing a stage-by-stage replacement of old equipment. Old and new switchgear can be operated in parallel, thus maximizing the availability of the energy supply. The small panel width of 600 mm means that me feeders can be included when old systems are replaced by NXPLUS C: i.e. a power supply system can be expanded without having to construct a new switchgear building. Potential capacity increase With plug-in busbars you also have the option of later increasing the capacity of industrial load-center substations. This can be achieved by replacing the 150 A infeed transfmer panels (as end-panel) with 000 500 A panels and upgrading the busbar from 150 A up to 500 A all this without the need f any wk on the gas system. The NXPLUS C duplicate busbar can be combined with the entire NXPLUS C single busbar product range, thus allowing just about every type of system (e.g. Z circuit). A secure system in every respect Thanks to its sophisticated design, NXPLUS C provides the highest levels of personal and operating safety and is also extremely reliable. NXPLUS C can always be operated with the encapsulation closed, as the primary enclosure is sealed (both safe to touch and hermetically welded). Excellent standards of personal safety are also ensured by features such as arc-fault testing, metal cladding, interrogative interlocking, a capacitive voltage detection system and IP65 protection f the primary part. Interruptions to operation caused by harmful environmental influences can be ruled out thanks to the hermetically-sealed and welded enclosure and the maintenance-free operating mechanisms mounted outside the NXPLUS C enclosure. Current and voltage transfmers outside the main enclosure are optimally accessible. Comprehensive interrogative interlocking, minimal fire-load and (as an option) aseismic design all help to maximize operating reliability. Proven reliability NXPLUS C s reliability has been proven by means of type and routine tests in accdance with IEC 6069/IEC 6098 (in future IEC 67. 17,000 switchpanels in operation around the wld today testify to the system s dependability. Quality assurance confms with DIN EN 9001. A summary of advantages: Sophisticated design provides high levels of personal safety and operating reliability Hermetically sealed and welded enclosures make replacement of old switchgear a safe procedure No wk on the gas system required on site Easy to fit inside existing buildings Parallel operation of old and new switchgear systems Expanding the power supply system, yet making use of existing switchgear buildings Plug-in busbars can increase the capacity Just about every type of system can be created Maintenance-free operating mechanisms, and thus maintenance-free switchgear Me than 17,000 switchpanels in operation wldwide Etc., etc., etc.
References Old RWE AG Mayen Substation New During rebuilding wk Old: Open, air-insulated double busbar system 0 kv, 150 A Panel width 100 mm New: Gas-insulated double busbar system NXPLUS C 0 kv, 150 A Panel width 600 mm + 100mm spacer panel (the width of the spacer panels can be adapted to given conditions on site) Benefits: Minimal modifications to existing foundations thanks to variable panel widths new feeders take up as much space as one old one (-> potential doubling of number of feeders) NXPLUS C installed during operation of old system RWE AG Appelhülsen Substation Old Old: 0 kv air-insulated double busbar system (outdo) 10 kv air-insulated double busbar system type AWJ New: 0 kv gas-insulated double busbar system NXPLUS 10 kv gas-insulated double busbar system NXPLUS C Benefits: Space saved, thanks to compact NXPLUS C design with 600 mm panel width Integration of 0kV outdo equipment into existing substation building Space in front of substation building freed f other purposes New Further references EAM Energie AG E.ON Hanse AG Technische Werke Ludwigshafen AG Ravdex A/S Jihomavská energetika, a.s. ZE Krakow EVN AG (D) (D) (D) (DK) (CZ) (PL) (A)
Product Range Circuit-Breaker Panels Three-position disconnect Vacuum circuit-breaker Plug-in voltage transfmer Plug-in voltage transfmer, outside BB BB1 Current transfmer Capacitive voltage detection system triple oder triple Disconnectable and plug-in voltage transfmer double oder double Surge arrester limiter Max. external cone connection systems (not included in scope of supply), one of which can be replaced by a surge arrester limiter HA5-500 eps 1000 A single in the case of one cable two cables, a surge arrester may be added HA5-501 eps 1000 A single in the case of one cable two cables, a surge arrester may be added Busbar rated nmal current 150 A (> 150 A on request) Single busbar panel, prepared f future expansion to double busbar Front view, sectional views, flo cutouts 0 09 5 70 176 761 Panel busbar Abbreviations BB1 = busbar 1 BB = busbar 600 1100 1100 70 600 1 control cables 1 control cables Pressure relief duct Pressure relief duct Fixing hole f M8/M10 Fixing hole f M8/M10 high voltage cable high voltage cable
Incoming feeder coupler Bus coupler BB BB1 BB BB1 oder triple oder double HA5-50 eps single HA5-50 eps 150 A in the case of one cable two cables, a surge arrester may be added Busbar rated nmal current 150 A (> 150 A on request) 1000 A Busbar rated nmal current 150 A (> 150 A on request) 09 5 0 09 5 176 176 761 761 70 0 1100 1100 70 600 1100 1100 70 1 control cables Pressure relief duct Fixing hole f M8/M10 5
Room planning Room planning double busbar systems Flo-mounted arrangement (plan view) Switchpanels with pressure relief duct System arrangement F double busbar switchgear: Back-to-back arrangement (flo-mounted) 800** Room dimensions See adjacent plan Panel fixing F flo cutouts and fixing points, see construction details Foundations: Steel girder construction Reinfced concrete flo with foundation rails, welded bolted Panel dimensions See pages and 5 5 50*** Room height 800 mm* 600 5 500** 800** 70 Weights Duplicate busbar panel 600mm: approx. 1600 kg * Room height 00 possible accding to pressure simulation ** When exchanging panels: Aisle 100 mm required *** Side space to wall 50 mm left right as desired Shipping data f duplicate busbar systems Transpt NXPLUS C switchgear is delivered in individual panels (A and B sides are separated) Transpt dimensions Panel widths Transpt dimensions Length x width x height mm mm x mm x mm Transpt in Germany / to other European countries 1 x 600 150 x 1100 x 70 Transpt weights * Panel widths Transpt weight with without packing packing mm approx. kg approx kg 1 x 600 900 800 Overseas transpt 1 x 600 150 x 110 x 650 * Mean values depending on complement of panels 6
Electrical data, filling pressure, temperature Common electrical data, filling pressure and temperature Rated insulation level Rated frequency f r Rated nmal current I r ) Rated filling pressure P re ) Minimum operating pressure P me ) Ambient temperature Rated voltage U r Rated sht-time power-frequency withstand voltage U d: phase-to-phase, phase-to-earth, open contact gap f isolating distance Rated lightning impulse withstand voltage U p: phase-to-phase, phase-to-earth, open contact gap f isolating distance f the busbar kv 7, 1 15 17,5 kv 0 8 6 8 50 kv 9 5 60 kv 60 75 95 95 15 kv 70 85 110 110 15 50/60 Hz A 500 500 500 500 500 150 kpa (absolute) at 0 C 10 kpa (absolute) at 0 C 5 C to +55 C Switchpanel data ) Circuit-breaker Rated nmal current I r panel, Rated sht-time current I k bus coupler 1000 A Rated peak withstand current I p Rated sht-circuit making current I ma Rated sht-circuit breaking current I sc Electrical service life of vacuum circuit-breakers f systems with t k = 1 s f systems with t k = s with rated nmal current with rated sht-circuit breaking current A 1000 1000 1000 1000 1000 up to ka 5 5 5 5 5 up to ka 5 5 5 5 5 up to ka 6 6 6 6 6 up to ka 6 6 6 6 6 up to ka 5 5 5 5 5 10.000 operations cycles 50 breaking operations Incoming feeder coupler Rated nmal current I r Rated sht-time current I k Rated peak withstand current I p Rated sht-circuit making current I ma Rated sht-circuit breaking current I sc Electrical service life of vacuum circuit-breakers f systems with t k = 1 s f systems with t k = s with rated nmal current with rated sht-circuit breaking current A 150 150 150 150 150 up to ka 5 5 5 5 5 up to ka 5 5 5 5 5 up to ka 6 6 6 6 6 up to ka 6 6 6 6 6 up to ka 5 5 5 5 5 10.000 operations cycles 50 breaking operations Higher rated sht-time powerfrequency withstand voltage available with: ) Rated nmal currents are determined f ambient temperatures of up to max. 0 C. ) Pressure values f SF 6 - insulated enclosures kv with phase-to-phase, phaseto-earth and open contact gap plus 8 kv across isolating distance The -hour mean is 5 C max. (to IEC 60 69/VDE 0670 Part 1000). Please see Catalog HA 5.1 f further details on NXPLUS C (Order no. E50001-K15-A01-A6) Higher rated lightning impulse withstand voltage: 95 kv with phase-to-phase, phaseto-earth and open gap plus 110 kv across the isolating distance 7
If you have any questions about Power Transmission and Distribution, our Customer Suppt Center is available around the clock. Tel.: +9 180 / 5 70 00 Fax: +9 180 / 5 71 E-Mail: suppt@ptd.siemens.com www.siemens.com/ptd-suppt (Subject to charges, e.g. 1 ct/min) Siemens AG Power Transmission and Distribution Medium Voltage Division Postfach 0 91050 Erlangen Germany www.siemens.com/ptd The infmation in this document contains general descriptions of the technical options available, which do not always have to be present in individual cases. The required features should therefe be specified in each individual case at the time of closing the contract. Subject to change without pri notice Order No. E50001-U9-A-X-7600 Printed in Germany Dispo-Stelle 00 61 C 6065 Br 1011 WS 005.