Xtender XTS 900-12 User Manual
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Studer Innotec SAXtenderUser manual V4.6.0 224.5.5 Earthing of batteryOne of the two battery conductors can be earthed. This may be either the positive or the negativepole. In all cases, the installation must conform to the local regulations and usage or specificstandards associated with the application.In case of earthing, the earthing conductor cross-section must at least be equivalent to the cross-section of the battery conductor. The earthing of the equipment must also adhere to theseregulations. In this case the use of the additional earthing screw is recommended ((17) p. 12/13,which is located at the front of the device between the two lower fastening screws.4.5.6 Connecting the consumers at the AC outputHigh voltages may be present on the connection terminals (13) and (14). Make sure thatthe inverter is deactivated and that there is no AC or DC voltage present on the AC-INterminals and battery terminals, before proceeding with the connection.The 230 V consumers must be connected onthe "AC-OUT" (14) connection terminals withthe wire cross-section conforming to thestandards with regard to the rated current atthe Xtender output (see fig. 1a). Distributionmust conform to the local standards andregulations, and generally, be realised via adistribution table.The Xtender terminals are marked in thefollowing way:N = neutral, L = live= protective earth (connected to theenclosure of the device).4.5.6.1 Sizing of AC output protectivedevices:If protective devices are installed at theoutput, we recommend B curve devices.They will be sized at maximum to the highestvalue listed on the unit’s nameplate at point(37) (Fig. 1a of the Appendix) or by theaddition of the first value plus the value of theinput protective device. (i.e. inverter current+ input current).Cross-sections of downstream wiring must be sized accordinglyIf the source assistance function (Smart Boost)(see sect. 7.2.2– p. 27 is not used; the size of theprotection device for the output (F) will be established at a maximum value equal to the ratedcurrent of the inverter, or at the maximum value of the protection device at the input (H) if that oneexceeds the rated current of the inverter.If the AC input (13) is not used the protective device will be sized equal or smaller than the smallervalue indicated on the nameplate on tag (37)No downstream protective device is formally required if cross-sections of cable used fordistribution satisfy regulatory requirements for the largest rated output current listed on thenameplate at the point (37) of Appendix 1a.Due to the source assistance function (Smart Boost) the current at the output of the devicemay be higher than the rated current of the inverter. It is the sum of the current supplied bythe additional source and the current supplied by the inverter. In this case, the dimensioningof the output cables will be carried out by adding the current indicated on the protectiondevice (H) located on the upstream of the unit, to the nominal current of the inverter. (Seefig. 1a and chap. 7.2.2.4 – p. 28)On the model XTS remove the cover plate byunscrewing the three screws (A figure below) toaccess the input/output AC terminals (13-14) andprotective earth (15).AAA |
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