13.07.2015 Views

P12x/EN T/Eb6 - Schneider - error

P12x/EN T/Eb6 - Schneider - error

P12x/EN T/Eb6 - Schneider - error

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

<strong>P12x</strong>/<strong>EN</strong> FT/<strong>Eb6</strong>Page 52/62t Open Pulse100 mst Close Pulse100 msUser GuideMiCOM P120/P121/P122/P123Displays and sets the tripping pulse time, from 0.1 to 5s,(step 10ms).Displays and sets the closing pulse time, from 0.1 to 5s(step 10ms).2.9.13 Submenu SOTF (Switch on to Fault) (P123 only)With the Switch On To Fault (SOTF) submenu, it is possible to shorten the time to trip whenfor example the relay has detected a fault that is still present on a feeder after energising.Using this menu, when SOTF function is activated, it is possible to choose the origin of thecircuit breaker closing command which will start the SOTF feature. One or several originscan be selected.The SOTF function can be set using “Automatic Ctrl” menu, “Trip Command”, “Output relays”and “Inputs”submenus.AUTOMAT. CTRLSOTFHeading of SOTF submenu.Sotf?t SotfI>>?I>>>?Ctrl close inputSOTF InputYes/No0.10 sNoNoYes/NoYes/NoHMI closing order:Yes/No[79] closingYes/NoFront comm. orderYes/NoRear comm. orderYes/NoEnables/Disables the SOTF function.If Yes is selected, the following menu is displayed.If No is selected, the SOTF submenu is not activated.Set the time delay value (tSotf) associated to the SOTFfunction , from 0 to 500ms (step 10ms).The SOTF/TOR tripping time delay is useful for some casesof serious transient or when three poles don’t close at thesame time, or when the CB doesn’t close instantaneously.Setting choice Yes: The crossing of the I>> thresholdactivates the SOTF function. The timer t Sotf starts itscountdown on crossing of the I>> threshold, and onceelapsed, the relay issues a trip order.Setting choice No: The crossing of the I>> threshold doesn’tactivate the SOTF function.As above for I>>> threshold.Enables/disables the possibility to start the SOTF functionby the dedicated logic input “Ctrl Close”. This “Ctrl Close”input should be assigned to input 1, 2, 3 or 4 using“Automat. ctrl/Inputs” menu.Enables/disables the option to start the SOTF function bythe dedicated logic input “SOTF”. This “SOTF” input shouldbe assigned to input 1, 2, 3 or 4 using “Automat. ctrl/Inputs”menu.Enables/disables the possibility to start the SOTF functionby a user’s manual closing order, using interface.Enables/disables the possibility to start the SOTF functionby an internal autoreclose order.Enables/disables the possibility to start the SOTF functionby a front port communication order.Enables/disables the possibility to start the SOTF functionwith an order sent to the rear port communication.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!