1. 1\ Backup system for solar on-grid installation 1 1pcs XTM4000-48 inverter charger, nominal power 3.5KVA, 30min. Power 4KVA AC DC Load2 (secured power) AC OUT BSP (optional accessory) Remote control and programming centre RCC Studer Communication cable AC IN Transfer relay 230V, 50Ac 48V battery bank PV2: AC Coupled PV array 3KW 3KW On-grid inverter (current source) BTS-01 + - PV1: AC Coupled PV array / no power limit Before Xtender, you can have what you want On-grid inverter (current source) Public grid Battery bank Load 1(not secured power) The grid connected inverter is directly connected to the AC-output of the Xtender. When grid is connected to the AC-input, the excessive solar power can go to the public grid. If there is no grid (islanded system), the injection inverter is smartly controlled with a frequency shift as explained in the AC coupling document. Reduce the utility grid power consumption if the grid is existing. The excessive energy generated by PV 2 (deducted by load 2 consumption & battery charging) could be fed to the upstream of AC IN through transfer relay. Backup: When public grid is failed, the PV1 grid inverter will stop working, however PV2 inverter could continuously feed the solar energy to the backup grid created by Xtender bi-directional inverter. The transfer relay of Xtender will be open. Grid inverter power must be equal or smaller than Xtender NOMINAL power. This rule is true at 25°C, don’t forget to take in account the derating if the ambient temperature is higher. Regarding batteries, they have to accept all the PV power (from PV2 grid inverter ) and support all the load2. C4 is the MINIMUM (4*Pnom/Unom)=AH 독립형 태양광 전문 로얄엔지니어링

2. 1\ Backup system for solar on-grid installation 2 1pcs XTM4000-48 inverter charger, nominal power 3.5KVA, 30min. Power 4KVA AC DC Load2 (secured power) AC OUT BSP (optional accessory) Remote control and programming centre RCC Studer Communication cable AC IN Transfer relay 230V, 50Ac 48V battery bank PV2: AC Coupled PV array 3KW 3KW On-grid inverter (current source) BTS-01 + - PV1: AC Coupled PV array / no power limit Before Xtender, you can have what you want On-grid inverter (current source) Public grid Battery bank Load 1(not secured power) Parameter DescriptionunitDefaultSettingRemark 1107Maximum current of the AC sourceAac32TBD Adapt to the local public grid. Max. current supplied by the grid 1138Battery charge currentAdc60TBD Adapt to the battery bank 1536Inverter frequency increase at full batteryy/nnoYES On/off frequency shift 1546Max frequency increaseHz44 5058Data logger enabledy/nnoOptionalOptional function 1187Sensitivity of the charge detection (100% approx.25W)%100%Cancel stand-by 독립형 태양광 전문 로얄엔지니어링

3. AC DC 2\ Backup system for solar on-grid installation/ max. Xtender nominal power of single phase 3 2pcs XTH8000-48 are connected in parallel. Load2 (secured power) Max. 14KVA AC OUT Remote control and programming centre RCC Studer Communication cable AC IN Transfer relay 230V, 50Ac 48V battery bank PV2: max. 14kW/phase when bigger Systems due to the desynchronize between the transfer switch of paralled Xtender. On-grid inverter (current source) BTS-01 + - PV1: AC Coupled PV array / no power limit Before Xtender, you can have what you want On-grid inverter (current source) Public grid Battery bank Load 1(not secured power) This configuration also support 3-phases system. It is recommend that all Xtenders whatever paralled and (or) 3-phases could share the common battery bank. The standard grid test of the grid inverter must be more ‘intelligent’ than the old impedance measurement else. there is the risk to connect-disconnect a lot of times (end of line effect). The old islaning grid impedance test must be deactivated for grid inverter. AC DC 독립형 태양광 전문 로얄엔지니어링

4. 3\ Hybrid type stand-alone system 4 DC BUS 1pcs XTH6000-48 inverter charger, nominal power 5KVA, 30min. Power 6KVA AC DC Xtender need to cover load power peak XTENDER SERIES inverter charger has two aux. contacts to automatically start genset over battery voltage, SOC, output power and timer etc. AC OUT Backup genset 5KW BSP (Battery Status Processor) Remote control and programming centre RCC Studer Communication cable DC Coupled PV array 5KW and 80A MPPT charger AC IN Transfer relay 230V, 50Ac 48V battery bank AC Coupled PV array 5KW 5KW On-grid inverter (current source) BTS-01 + - PV array … Battery bank MPPT charger VT65 or VT80 Hybrid type stand-alone system. PV and battery is the primary energy source. When the energy supply is insufficient, a generator is used as a back-up energy source. As long as getting startup, the generator will output the voltage. The transfer relay will be switched on automatically when the voltage at AC In satisfies the voltage parameter. Please refer to the introduction about power sharing on Xtender user manual. ON/OFF frequency shift: on-grid inverter is smartly controlled by Xtender bi-directional inverter through frequency shift. The max. matching ratio of power between Xtender and on-grid inverter is 1:1. Regarding batteries, they have to accept all the PV power (from grid inverter AND MPPT charger) and support all the loads. C4 is the MINIMUM (4*Pnom/Unom)=AH Generator power has to be higher or equal as the Xtender nominal power which is higher or equal as the Grid Inverter. 독립형 태양광 전문 로얄엔지니어링