declaration:islanding_concerns

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declaration:islanding_concerns [2018/12/29 00:38]
admin created
declaration:islanding_concerns [2020/09/16 21:41] (current)
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-December 15, 2018+December 29, 2018 
 To whom it may concern: To whom it may concern:
  
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 In this mode of operation the inverter injects current into the grid based on the capability of the connected battery storage. In this mode of operation the inverter injects current into the grid based on the capability of the connected battery storage.
  
-The PWS1, PWS2 series PCS DO have off-grid operation capability, allowing operation as a stand-alone voltage source; +The PWS1, PWS2 series PCS **DO have** off-grid operation capability, allowing operation as a stand-alone voltage source; 
  
 However, to operate in this mode it would have to start in a voltage mode However, to operate in this mode it would have to start in a voltage mode
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   * The BMS auxiliary power that operates the system logic would need to be fed into the PWS1, PWS2 series PCS, when the grid lost power to the BMS, the BMS will trip after the UPS drained out and no power will be applied on the PCS   * The BMS auxiliary power that operates the system logic would need to be fed into the PWS1, PWS2 series PCS, when the grid lost power to the BMS, the BMS will trip after the UPS drained out and no power will be applied on the PCS
   * The ability to start-up instand-alone (off-grid)  mode is controlled by a screen on PWS1, PWS2 series. If nobody intends to modify the setting, the PCS will NOT go into off-grid mode.   * The ability to start-up instand-alone (off-grid)  mode is controlled by a screen on PWS1, PWS2 series. If nobody intends to modify the setting, the PCS will NOT go into off-grid mode.
-The lack of access to the screen and need for different physical wiring excludes the ability of a hacker to do change the operational mode of the system.  
  
-There is no need for software patch that can be employed to eliminate this toggling. But a patch is also available.+The lack of access to the screen and need for different physical wiring excludes the ability of non-authorized personnel to do change the operational mode of the system.  
 + 
 +There is NO need for software patch that can be employed to eliminate this toggling. But a patch is also available. 
 + 
 +Ran Gao\\  
 +Product Engineer\\  
 +Sinexcel inc
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