siemens.com/nxair
Flexible in Application, Consistent in SafetyAir-Insulated Medium-Voltage Switchgear NXAIRTotally Integrated Power – NXAIR
2
Totally Integrated Power (TIP) – We bring power to the pointOur products, systems, and solutions for low and medium voltage make power distribution efficient, reliable, and safe – in cities, infrastructure, buildings, and industrial plants. They can be linked to industrial and building automation, and are rounded out by comprehensive support throughout the entire lifecycle.
Air-insulated medium-voltage switchgear from Siemens stands for highest personal and operational safety, as well as for local creation of value. Up to now, more than 450,000 air-insulated panels are in operation around the globe.
Our close-meshed, global network of experts guarantees worldwide availability of experts for the medium-voltage switchgear NXAIR close to you. NXAIR is a proven solution which provides a suitable system for all industries due to its adaptable design. Talk to our experts and experience the flexibility of NXAIR!
3
Production locations
Corroios, PortugalDubna, RussiaGebze, TurkeyJakarta, IndonesiaJeddah, Saudi-ArabiaJundiai, BrazilKalwa, IndiaKarachi, PakistanNorthriding, South AfricaQuerétaro, MexicoShanghai, China
The air-insulated medium-voltage switch-gear NXAIR is the result of many years of experience and development. Worldwide, air-insulated technology has served as a basis for an established, reliable power supply for more than 100 years. The NXAIR family has been continuously developed since 1998, and individually adapted to the specific market requirements of the different industries and power supply companies.
NXAIR conforms to the defined standards of IEC, GOST and GB/ DL, partly exceeding them. The proven resistance to internal faults provides highest personal safety, and thus a sustainable increase of pro-ductivity. Due to the compact design and low maintenance requirements of NXAIR, saving potential can be generated – in any industry. This is our promise to our customers.
We always act in the best interest of our customers
4
Due to its adaptable design, NXAIR offers high flexibility to satisfy individual cus-tomer requirements. Our specialists design customized solutions for you, even for adverse climatic conditions, at maximum or minimum ambient air temperatures, under high air humidity, as well as in case of heavy pollution of ambient air with dust, gases, salts or chemically active vapors. Many details of NXAIR can be modified, and manufactured according to the customer’s requirements. Please find a small selection of options below:
Cable connection Flexible in connection: Cables can be connected both from above and from below, and installation is possible from front or rear. Different cable types and cross-sections can be used.
Current transformer connection Easily extendable: NXAIR offers space for up to 6 current transformers per panel (2 current transformers per phase). Different core classes and accuracies as well as individual protection concepts are possible.
Upgrade of degree of protection The degree of protection of a switchgear must meet the most different requirements,
depending on the area of application. With the corresponding additional measures, degrees of protection up to IP42 or IP51 can be reached, in order to operate NXAIR safely even under severe conditions.
Components on the busbar For functions such as busbar earthing or busbar voltage metering, NXAIR does not require any additional panels, as these func-tions can be directly implemented by means of additional components mounted on the busbar. Cost savings and optimum utilization of switchgear buildings are guaranteed.
Pressure relief The pressure relief of the switchgear can be designed individually, depending on the installation conditions inside the building or the customer’s request. Whether into the building via absorbers or to the outside through a modular pressure relief duct sys-tem – the pressure relief can be configured individually, and it is of course type-tested to ensure a high personal safety.
Mimic diagram Depending on the customer’s request, the mimic diagram with integrated mechanical position indicators can be supplied in different colors and with customer-specific symbols.
For your requirements – NXAIR offers the solution
5
Data centers Data centers place high demands on per-manent, uninterrupted power. Their servers are operating 24 hours a day, seven days a week, under strictly controlled ambient conditions. NXAIR smoothly integrates into the power distribution of data centers, and
Power supply companies Power supply companies face growing energy demands due to increasing po pu la-tion numbers. Power consumption de pen-dent on time and availability, security of power supply, and grid stability are currently highly debated topics.
Chemical industry With ever shorter cycles for development and market entry, product quality needs to be at the highest level. As an experienced partner of the chemical industry, NXAIR
Safety at the highest standard. In every industry
Automobile industry As a reliable partner of the automobile indus-try, NXAIR offers a cost-efficient product design with an especially developed automo-tive panel, for safe production at the factory. Due to the confinement of an internal arc to the respective compartment, NXAIR guaran-tees high availability and maximum opera-
Oil and gas industry To achieve maximum cost-efficiency, appli-cations for the oil and gas industry must guarantee maximum reliability and avail-ability around the clock. NXAIR reliably
Steel industry As a delivering industry, the steel industry depends on the cycles of its customer sectors and is thus subject to economic fluctuations. A reliable and safe power supply is also re -quired for a high flexibility in production, in
tional safety. NXAIR also fulfills the internal arc classification (IAC A FLR) according to the rated short-circuit current with internal arc duration of 1 s (IEC), and optionally with a rapid shutdown function of 0.1 s. Addi-tionally, the special use of silicone-free or non-silicone-releasing components in NXAIR ensures a trouble-free painting process.
secures the power supply, even under adverse climatic and ambient conditions such as saline and humid climate or dust. Moreover, NXAIR ensures maximum per-sonal safety due to its high standards.
order to manufacture increasingly small-vol-ume orders especially for mechanical engineer-ing. NXAIR fulfills these requirements with its maintenance-free circuit- breakers and the maintenance-free withdrawable design, as well as with a high short-time withstand current.
NXAIR guarantees a reliable and cost- efficient power supply with low space requirements. Thanks to its modular design and intuitive operating logic, NXAIR provides for maximum personal safety during operation, as well as for high flexibility and availability.
even fulfills future requirements with its advanced technology. The high quality of the switchgear provides for maintenance intervals of more than 10 years, thus saving significant life cycle costs. Both power supply with NXAIR and server monitoring are controlled from remote.
ensures smooth operation and exemplary availability. Even under the challenging ambient conditions of the chemical industry, NXAIR provides a reliable power supply with a long service life of more than 30 years.
6
NXAIR offers moreCustomer-oriented flexibility, high personal safety and low operation and maintenance costs – high-performance NXAIR offers all the advantages of an all-round carefree package for power distribution.
NXAIR ensures peace of mind NXAIR is developed and manufactured according to high quality and environmen-tal standards. Maintenance-free design, maintenance-free type-tested vacuum circuit-breakers, and quality assurance throughout the process in accordance with DIN EN ISO 9001 and 14001 ensure smooth operation.
NXAIR stands for optimum safety All switchgear types of the NXAIR family are approved with internal arc classification IAC A FLR, loss of service continuity cate-gory LSC2B, and partition class PM. For this purpose, the interlocks of the individual components are designed to fit in a way which prevents maloperation. Mechanical interlocking and unambiguous position indicators in the mimic diagram on the high-voltage door assist for operation without malfunctions.
NXAIR increases productivity With its compact design, low maintenance requirements and uncomplicated, reliable technology, NXAIR ensures uninterrupted operation as well as a sustainable increase of productivity. NXAIR is an investment that pays off throughout its entire life cycle.
NXAIR generates saving potential The low maintenance requirements with intervals of more than 10 years and the modular design of NXAIR enable a largely continuous operation without expensive downtimes. Due to the compact design and the flexible cable connection options or pressure relief duct systems, the space requirements are extremely low, which contributes to reduced building costs.
NXAIR preserves the environment The insulating medium air is absolutely environmentally neutral and is always available. Special insulation gases do not need to be used. As a consequence, no gases will escape, and there is no moni toring necessary. Due to its service life of more than 30 years and a simple disposal at the end of the life cycle, NXAIR is a sustainable solution which optimizes your overall performance balance.
7
Technical features NXAIR NXAIR NXAIR Rating up to ≤ 17.5 kV ≤ 17.5 kV 24 kV
Rated frequency 50/60 Hz 50/60 Hz 50/60 Hz
Rated values up to 40 kA, 3 s 50 kA, 3 s 25 kA, 3 s
Feeder current up to 4000 A 4000 A 2500 A
Busbars Single busbar Single busbarSingle and double busbar
Insulation Air-insulated
Type of switchgearFactory-assembled, type-tested and metal-enclosed switchgear according to IEC 62271-200, modular and extendable
Classification according to IEC 62271-200
Loss of service continuity category LSC2B
Partition class PM
Accessibility to compartmentsBusbar compartment Tool-based
Switching-device compartment Interlock-controlled
Cable compartment Interlock-controlled or tool-based
Internal arc classification IAC A FLR 40 kA, 1 s IAC A FLR 50 kA, 1 s IAC A FLR 25 kA, 1 s
Degree of protection for the enclosure up to
IP50, IP51
Dimensions
Panel width435 mm, 600 mm, 800 mm, 1000 mm
435 mm, 800 mm, 1000 mm
800 mm, 1000 mm
Panel height (minimum) 2300 mm 2550 mm 2560 mm
Panel depth (minimum) 1350 mm 1650 mm 1600 mm
For further information, see catalog HA 25.71
Published by Siemens AG 2016 Energy Management Medium Voltage & Systems Mozartstr. 31 c 91052 Erlangen, Germany
siemens.com/nxair
For further information please contact our Customer Support Center. Phone: +49 180 524 70 00 Fax: +49 180 524 24 71 (Charges depending on provider) E-mail: [email protected]
Article-No. EMMS-B10038-7600 Printed in Germany Dispo 30400 PU14/79296 / WS / 0316 2.0
Subject to changes and errors. The information given in this document only contains general descriptions and/or performance features which may not always specifically reflect those described, or which may undergo modification in the course of further development of the products. The requested performance features are binding only when they are expressly agreed upon in the concluded contract.
Siemens NXAIR
