DC Combiner box and AC solutions. Leadership in circuit protection

Transcription

1 DC Combiner box and AC solutions Leadership in circuit protection

2 Eaton and Cooper united. Energizing a world that demands more. We deliver: Electrical solutions that use less energy, improve power reliability and make the places we live and work safer and more comfortable Hydraulic and electrical solutions that enable machines to deliver more productivity without wasting power Aerospace solutions that make aircraft lighter, safer and less costly to operate, and help airports operate more efficiently Vehicle drivetrain and powertrain solutions that deliver more power to cars, trucks and buses, while reducing fuel consumption and emissions Discover today s Eaton. Powering business worldwide As a global power management company, we help customers worldwide manage the power needed for buildings, aircraft, trucks, cars, machinery and businesses. Eaton s innovative technologies help customers manage electrical, hydraulic and mechanical power more reliably, efficiently, safely and sustainably. We provide integrated solutions that help make energy, in all its forms, more practical and accessible. With 2013 sales of $22 billion, Eaton has approximately 100,000 employees around the world and sells products in more than 175 countries. Eaton.com 2 EATON DC Combiner box and AC solutions

3 Company overview Bussmann, a division of Eaton, is the leading source of circuit protection solutions in the global marketplace. Bussmann products are approved for use around the world and meet agency requirements and international standards: IEC, VDE, DIN, CCC, UL, CSA, BS and others. Bussmann global headquarters are in St Louis, Missouri (US), the European headquarters are in Burton-on-the- Wolds, Leicestershire (UK), and Asia- Pacific based in Shanghai. Bussmann manufactures over 50,000 unique parts covering extensive circuit protection solutions for a wide range of applications and markets, including: utility, industrial, renewable energy, automotive and hybrid electric vehicles and rail applications. Drawing on a hundred years of fuse design and expertise, Bussmann has been at the forefront of the solar PV market as it has evolved to become a mature sustainable and adaptive technology. PV systems, as with all electrical power systems, must have appropriate protection to ensure safe reliable operation. Throughout this evolution Bussmann has worked closely with solar system manufacturers and through coordinated research and development has produced revolutionary new fuse links, surge protection devices and integrated solutions to ensure people, property and payback are protected. As a leading exponent in the design, development and manufacture of overcurrent protection, the Bussmann team of specialist engineers play a leading role in international standardisation of photovoltaic fuse links, offering comprehensive advice on selection and applications With a global manufacturing footprint and a continual commitment to meet our customers needs Bussmann continues develop innovative highquality products for the PV market, protecting tomorrows future, today. EATON DC Combiner box and AC solutions 3

4 Residential installations Due to their small size, system protection is often overlooked within residential PV installations. On the contrary adequate protection of the DC and AC circuits in residential installations is just as critical as in much larger systems. Typically made of one or two strings of eight modules, high voltage DC cables may be run throughout the residential building; here it is critical to protect people and property from fire and death in the event of accidental damage or system failure. Residential installations < 50kW Combiner box SPD Switch Inline fuse holder Fireman s switch 4 EATON DC Combiner box and AC solutions

5 Residential combiner box For residential systems where inline fuses are used a simple two string combiner box with DC isolation and PV surge protection can be custom designed in a convenient compact unit. Standards IEC , IEC and IEC Number of strings 2*, 3, 4 up to 1000 Vdc Fuse Optional 10x38 gpv 8 to 12A* DC load isolation Recommended 25 Adc* to 63 Adc Overvoltage protection PV T2* * Typical confi guration DC overvoltage protection Integrated as part of the residential combiner box or installed separately, the DC surge protection device (SPD) protects against damaging voltage surges typically caused by indirect or direct lightning strikes. Standards EN EN SPD test class PV T2* PV T1/T2 600 Vdc*, 1000 Vdc 600 Vdc, 1000 Vdc Short circuit current rating Iscpv 160 Adc* 1000 Adc Max discharge current In (8/20)μs 40 ka* 40 ka Lightning impulse current Iimp (10/350)μs - 5 ka * Typical confi guration 10x38 mm photovoltaic fuse links The Bussmann range of photovoltaic fuse links are specifically designed to provide high quality protection and isolation for photovoltaic installations ether at string level or within the combiner box. Standards Operating Class Current Ratings Size * Typical values IEC , UL 2579, CSA, CCC (1-15A), RoHS compliant 1000Vdc gpv 1 6A, 8A, 10A*, 12A*, 15A, 20A, 25A 10x38mm Fireman s switch The PV Fireman s switch is a DC switch disconnector that isolates the lines between the solar modules and the inverter. With the option for remote and under-voltage operation the PV Fireman s switch enables firefighters to safely isolate the DC lines in the event of a fire. Standards IEC/EN Vdc Number of switches 1* Switch rating 30A Inputs/Outputs 1 in*/1 out*, 2 in/2 out Terminal type MC4* or M12 gland * Typical values Inline fuse holder Ideal for residential systems of only one or two strings the Bussmann Inline fuse holder is a single pole, non-serviceable PV fuse and fuse holder assembly in an IP67 dust tight and temporary water immersion resistant housing for use in PV wire harnesses. Standards Fuse Current Ratings IP protection Terminals * Typical values CE (IEC fuse), UL, CSA Component Acceptance 1000Vdc gpv 10x38mm 1 6A, 8A, 10A*, 12A*, 15A, 20A, 25A IP67 Crimp connection for single/stranded 12-10AWG PV cable EATON DC Combiner box and AC solutions 5

6 Commercial installations As PV installations become larger, typically found in commercial rooftop systems, designing the correct PV protection becomes more important. Typically ranging from 50kW to a few Mega Watts these systems require careful consideration to ensure that they have correct protection and meet national and local codes for installation and connection to the grid. Commercial installations 50kW to 1MW Combiner box Fireman s switch G59 AC Panel 50kW Eaton s engineering services Eaton s Electrical Services & Systems team offers a comprehensive portfolio of services tailored for every stage of a power system s life cycle whether it s design, build, or support. Our services integrate and optimize the elements of a power system to make sure it s aligned with business goals. We can help keep your power system safe, effi cient, reliable, and up-to-date. 6 EATON DC Combiner box and AC solutions

7 Commercial combiner box In commercial installations a small number of PV strings may be combined before being input into a string inverter, this is particularly the case for thin-film module based systems. Here for example Bussmann by Eaton can configure a three or four string combiner box to include gpv string fuses, DC isolation, and T2 or T1/T2 surge protection devices. Standards IEC , IEC and IEC Number of strings 2, 3, 4* up to 1000 Vdc Fuse 10x38 gpv 8 to 12A* DC load isolation 25 Adc to 63* Adc Overvoltage protection PV T2* Terminal type MC4 connectors*, M16 glands IP protection IP65 Enclosure GRP* with transparent*/opaque lid and IP65 breather vent * Typical confi guration Overvoltage protection Owing to the increased size and complexity of commercial PV installations it is important to ensure both AC and DC overvoltage protection is carefully considered and the right protection selected to prevent damage in the event of an indirect or direct lightning strike. Standards EN EN /IEC SPD test class PV T2*, PV T1/T2 T1, T1/T2, T2 Confi guration 2 pole + PE 1, 2, 3, 4 Pole, 1+NPE, 3+NPE 600, 1000* Vdc Vac, 280* Vac Short circuit current rating Iscpv 160*, 1000 Adc - Max discharge current In (8/20)μs 40 ka* 35kA (T1), 50 ka (T1/T2) 40 ka (T2) (30 ka - 75 Vac T2) Lightning impulse current Iimp (10/350)μs 5 ka (PV T1/T2) 35 ka (T1), 12.5 ka (T1/T2) * Typical confi guration Fireman s switch In some markets national and local installation requirements may require the installation of a DC isolating Fireman s switch. In this case the Eaton Fireman s switch can be configured in larger switch-disconnector combinations necessary for commercial installations. With remote operation and under-voltage release the individual strings can be fed separately into the string inverter helping to optimise inverter performance. Standards IEC/EN Vdc Number of switches 2, 3, 4*, 6 Switch rating 30 A each input Utilization category DC-21A Inputs/Outputs 2 in/2 out, 3 in/3 out, 4 in*/4 out*, 6 in/6 out Terminal type MC4* or M12 gland IP protection IP65 * Typical confi gurations AC side grid and systems protection As PV systems become larger it is important to meet the national and local requirements for export to the grid, here Eaton has a number of customisable solutions to meet these requirements. For the UK a G59 distribution panel can be configured with integrated G59 relay and contactor as well as options for power metering and incoming AC MCBs. Similarly for Germany a VDE-AR-N 4105 preconfigured unit can be supplied in a number of rating classes from 43 to 100k VA. Standards G59 VDE-AR-N 4105 Rated output As required. Typically <500kW 43, 55, 86, 100k VA Rated operating voltage 230/400 Vac 230/400 Vac Monitoring relay G59/3 relay Yes Contactors 4 pole, rated to suit system 2 (DILMP series) Terminal type Dependent upon cable size Metering Multi-function energy meter, MID certifi ed with RS485 & pulse o/p Isolator 4 pole, rated to suit system * Typical confi gurations EATON DC Combiner box and AC solutions 7

8 Utility installations For large scale ground mount utility PV systems the challenges of providing the correct type and level of system protection becomes ever more critical as system voltages and operating currents are typically significantly higher. Spread out over large areas, with export powers typically in the magnitude of 10 s of MW these large scale solar farms represent significant fi nancial investments for the owners and operators. For this reason it is critical to ensure safe and reliable operation of the DC, LV and MV circuits within these systems as well as meeting local and national codes for connection to the grid. Utility installations > 1MW Combiner box Fireman s switch Eaton s Electrical Services & Systems team offers a comprehensive portfolio of services tailored for every stage of a power system s life cycle whether it s design, build, or support. Our services integrate and optimize the elements of a power system to make sure it s aligned with business goals. We can help keep your power system safe, effi cient, reliable, and up-to-date. 8 EATON DC Combiner box and AC solutions

9 Utility combiner box For utility scale PV systems the fully customisable Bussmann by Eaton combiner box solution comes into its own with numerous options for the number of input strings, gpv fuse ratings, and options for full system monitoring of individual sting currents and system voltage, power supplies and surge protection for DC, AC and communications. Using dedicated design rules the Bussmann by Eaton engineers tailor the solution specific to the installation to ensure all levels of protection are covered. Standards IEC , IEC and IEC Number of strings 2 32 strings (20A fuse max), 2 16 strings (32A fuse max), 16 string* up to 1000 Vdc Fuse 10x38 gpv 1 to 32A, 16A* DC load isolation 25 Adc to 500 Adc, 250 Adc* Overvoltage protection: DC PV SPD PV T2*, PV T1/T2, remote indication± AC SPD± 280 Vac T2, 1 pole, 2 pole or 1+NPE, with remote indication Data line SPD± 24 V D1/C2 Monitoring± String current 8, 16, 24 string shunt based monitoring Power supply External 24 Vdc, Internal 240 Vac to 24 Vdc, Internal 1000 Vdc to 24 Vdc Communication RS Wire Modbus Terminal type Bottom or side entry MC4 connectors*, M16 glands IP protection IP65*, IP55 with IP55 vents Enclosure GRP* with transparent*/opaque lid and IP65 breather vent * Typical confi guration ± Monitored combiner boxes only XL square body and NH photovoltaic fuse links The Bussmann range of XL square body and NH photovoltaic fuse links are specifically designed to provide reliable DC overcurrent protection needed for the demanding conditions of utility scale PV farms. Typically used in re-combiners and inverters these fuse links are capable of interrupting low overcurrents associated with faulted PV systems. Standards IEC , UL 2579, RoHS compliant, CSA (NH only), CCC pending Sizes 01XL, 1XL, 2XL, 3L NH1, NH2, NH3 1000, 1100, 1200, 1500 Vdc 1000 Vdc Current rating 50 to 600A 32 to 400A Operating Class gpv (UL PV) gpv (UL PV) Indication Top indication Dual indication Accessories Microswitches, XL fuse holders Microswitches, NH fuse holders Medium voltage switchgear Xiria ring main unit The Xiria Ring Main Unit system is metal enclosed and air insulated, equipped with load-break switches and circuit breakers for 12kV-20kA and 24kV-16kA networks. They operate with a combination comprised of circuit breakers and electronic relays and feature high level of operational safety and a compact design. A variety of options are available including an extensible version. Eaton s full range of SF6-free medium voltage switchgear systems provide an opportunity to make an active contribution to reducing the worldwide emissions of SF6-gas. EATON DC Combiner box and AC solutions 9

10 PV system overview Eaton can offer a comprehensive range of products for safe, reliable and sustainable PV systems within residential, commercial and utility sectors. Drawing on a hundred years of design and expertise the Bussmann by Eaton combiner box can be configured as a simple 2 string unit for residential systems, up to 34 strings with monitoring for utility scale systems. With a focus on reliability and safety the Bussmann by Eaton combiner box solution has been designed with superior thermal characteristic making it suitable for a range of environments with ambient temperatures up to 50 C. Independent, third party testing and certification by TUV Rheinland gives additional peace of mind that the product is fully compliant to IEC standards IEC , IEC and IEC With a global manufacturing footprint and local support, Eaton can meet the needs of PV installations large and small throughout the world. Feature Benefit Custom design solution Meets the needs any PV installation TUV Rheinland tested and certifi ed Reassurance in design reliability and safety Superior thermal design Reliability in harsh environments up to 50 C Industry leading internal components Confidence from 1000 s MWh of global use Global manufacturing footprint Local support and reduced time frames Terminal type MC4 connectors*, M16 glands IP protection IP65 Enclosure GRP* with transparent*/opaque lid and IP65 breather vent 1 Residential combiner box 2 DC overvoltage protection 3 10x38 PV fuse links 4 Single fireman's switch 5 Inline fuse holder 6 Commercial combiner box 7 AC Overvoltage protection 8 Multiple fireman's switch 9 AC side grid protection 10 Utility combiner box 11 XL & NH PV fuse links 12 LV & MV switchgear 13 Eaton's Electrical Services & Solutions Residential installations Commercial installations Utility installations 10 EATON DC Combiner box and AC solutions

11 Residential installations Commercial installations Utility installations EATON DC Combiner box and AC solutions 11

12 At Eaton, we re energized by the challenge of powering a world that demands more. With over 100 years experience in electrical power management, we have the expertise to see beyond today. From groundbreaking products to turnkey design and engineering services, critical industries around the globe count on Eaton. We power businesses with reliable, efficient and safe electrical power management solutions. Combined with our personal service, support and bold thinking, we are answering tomorrow s needs today. Follow the charge with Eaton. Visit eaton.com/electrical. Contact your local Eaton Office Eaton s Bussmann Business Cooper Bussmann (UK) Ltd Melton Road Burton-on-the-Wolds LE12 5TH United Kingdom Tel: +44 (0) Fax: +44 (0) bulesales@eaton.com Customer Support Centre Eaton Electric Limited Grimshaw Lane Middleton Manchester M24 1GQ United Kingdom Tel: +44 (0) Fax: +44 (0) ukcommorders@eaton.com Eaton Industries Manufacturing GmbH Electrical Sector EMEA Route de la Longeraie Morges, Switzerland Eaton.eu 2014 Eaton All Rights Reserved Printed in UK Publication No. BR132004EN October 2014 Changes to the products, to the information contained in this document, and to prices are reserved; so are errors and omissions. Only order confirmations and technical documentation by Eaton is binding. Photos and pictures also do not warrant a specific layout or functionality. Their use in whatever form is subject to prior approval by Eaton. The same applies to Trademarks (especially Eaton, Moeller, and Cutler-Hammer). The Terms and Conditions of Eaton apply, as referenced on Eaton Internet pages and Eaton order confirmations. Eaton is a registered trademark. All other trademarks are property of their respective owners.