MiCOM P921/P922/P923 - Schneider - error

P92x/EN FT/H42Page 62/70t AUX 1 =t AUX 2 =0.0 s0.0 sTechnical GuideUser GuideMiCOM P921/P922/P923Description: setting of the auxiliary timer associated to theAUX1 logic input.Range: 0 – 200s, step = 0,01sDescription: setting of the auxiliary timer associated to the AUX2 logie input.Range: 0 – 200s, pas = 0,01s2.7.10 "VT SUPERVISION" Submenu (MiCOM P922 and P923 only)The voltage transformer supervision (VTS) feature is used to detect failure of theanalog ac voltage inputs to the relay. This may be caused by internal voltagetransformer faults, overloading, or faults on the interconnecting wiring to relays. Thisusually results in one or more VT fuses blowing.MiCOM P922 and P923 are able to detect a VT loss by using VTS automatism. Assoon as VT loss is detected, all voltage dependent functions will be blocked(according to the setting), an alarm can be raised.To gain access to the VT Supervision submenu from the “Automatic control” menu,press followed by or until the desired submenu header is displayed.AUTOMATIC CTRLVT SUPERVISIONHeading of the Automatic control menu. To gain access to themenu from the default display press followed by or untilthe menu is displayed.Heading of the Voltage Transformer Supervision(VTS)VTS supervision ?NoDetection modeVTS InputDescription: Enable or disable the VT supervision function.Setting choice: Yes or NoIf Yes is selected, the “VT Supervision” menu is activated anddisplayed:If No is selected, the VT Supervision function is inactive.Range: Yes/NoDescription:Range: VTS Inputin 3Vpn+Vr mode only: VTS Input, dVr+Input or delta VrDelta Vr15V or 50VDescription:Range: range 57-130V: 2-130V step = 1Vrange 220-480V: 20-480V step = 5VtVTS5sInhib. VTS / 52a?NoBlock FunctionU< YesU> YesV1< YesV0> YesFrequ.Yesdf/dtYesdu/dtYesDescription: Sets the VTS timer. The VTS alarm will occur if VTfault occurs during more than the VTS timer.Range: from 0 to 100s, in steps of 10ms.Description: Inhibition of VT supervision by the 52a signal. In thiscase, the VTS detection will be inhibited when the circuit breakeris open.Range: Yes/NoDescription: When Yes is selected, the VT fault will block thecorresponding protection (“U> = Yes” will block U>, U>> and U>>>protections, “V0> = yes” will block V0>, V0>>, V0>>>, V0der>,V0der>> and V0der>>>)Range: Yes/No