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At acquisition, the following signals are made available by the sensors:

  • VSYNCa,b,c_label: Primary phase voltages used by the firing synchronization system (volt));
  • VSYNCba,cb,ac_label: Primary phase-to-phase voltages used by the firing synchronization system (volt);
  • V_LINE_label: DC voltage relative to ground at the DC line input (volt);
  • V_NEUTRAL_label: DC neutral relative to ground at the DC line input (volt);
  • IaPrimXfo, IbPrimXfo, IcPrimXfo_label: AC currents in the primary windings of the transformer (ampere);
  • Id_label: DC current on bridge (ampere);
  • IaY, IbY, IcY_label: AC currents in the Y secondary windings of the transformer (ampere);
  • V12_xY_label (x = 1, 2, 3, 4, 5, 6): Voltage across valve x of the bridge connected to the Y windings (volt);
  • I12_xY_label (x = 1, 2, 3, 4, 5, 6): Current across valve x of the bridge connected to the Y windings (Amperes);
  • CMD12INT_xY_label (x = 1,2,3,4,5,6): Firing command from the internal source to component “1 to 2” of valve x of the bridge connected to the Y windings (logical);
  • CMD21INT_xY_label (x=1,2,3,4,5,6): Firing command from the internal source to component “2 to 1” of valve x of the bridge connected to the Y windings (logical);
  • CMD12EXT_xY_label (x=1,2,3,4,5,6): Firing command from the external source to component “1 to 2” of valve x of the bridge connected to the Y windings (logical);
  • CMD21EXT_xY_label (x=1,2,3,4,5,6): Firing command from the external source to component “2 to 1” of valve x of the bridge connected to the Y windings (logical);
  • CMDFLT_ label: Flag for a valve fault (logical);
  • PPattern_label: A number whose binary code specifies that the thyristors are receiving firing pulses. For example, 5 specifies that firing pulses are sent to thyristors 1 and 3.
  • Up_Trlabel: Signal sent to the tap changer to increase the tap position (logical);
  • Down_Trlabel: Signal sent to the tap changer to decrease the tap position (logical);
  • STATE12_xY_label (x = 1,2,3,4,5,6): State of the “1 to 2” component of valve x of the bridge connected to the Y windings (logical));
  • STATE21_xY_label (x = 1,2,3,4,5,6): State of the “2 to 1” component of valve x of the bridge connected to the Y windings (logical);
  • FAILSIG_xY_label (x = 1,2,3,4,5,6): Valve alarm signal with the following meanings:
    • 1: Infringement of Tq extinction limit time for Thyristor 12. (Automatically reset to zero after a time step).
    • 1: Infringement of Tq extinction limit time for Thyristor 21. (Automatically reset to zero after a time step).
    • 2: Reverse voltage of Thyristor 12 greater than Rbov. (Reset to zero only if Fail Reset= Enable.
    • 2: Reverse voltage of Thyristor 21 greater than Rbov. (Reset to zero only if Fail Reset= Enable.
    • 3: Direct voltage of Thyristor 12 greater than Rbov. (Reset to zero only if Fail Reset= Enable.
  • DelayImpInt_label: Internal pulse delay.
  • DelayImpExt_label: External pulse delay.
  • DelayImp_label: Pulse delay.
  • DelayImpUsed_label: Pulse delay used.
  • P_label: Same as Pattern_label, but originating from control module.
  • D_label: Delay from control module.
  • IaD, IbD, IcD_label: AC current in the delta secondary windings connected to transformer (ampere);
  • V12_xD_label (x=1, 2, 3, 4, 5, 6): Voltage in valve x of the bridge connected to the delta windings (volt);
  • I12_xD_label (x=1, 2, 3, 4, 5, 6): Current in valve x of the bridge connected to the delta windings (ampere);
  • CMD12INT_xD_label (x=1,2,3,4,5,6): Firing command from the internal source to component “1 to 2” of valve x of the bridge connected to the delta windings (logical). For the GTO+Diode switch the signal value is -1 when the diode is forced to conduct;
  • CMD21INT_xD_label (x=1,2,3,4,5,6): Firing command from the internal source to component “2 to 1” of valve x of the bridge connected to the delta windings (logical);
  • CMD12EXT_xD_label (x=1,2,3,4,5,6): Firing command from the external source to component “1 to 2” of valve x of the bridge connected to the delta windings (logical);
  • CMD21EXT_xD_label (x=1,2,3,4,5,6): Firing command from the external source to component “2 to 1” of valve x of the bridge connected to the delta windings (logical). For the GTO+Diode switch the signal value is -1 when the diode is forced to conduct;
  • STATE12_xD_label (x = 1,2,3,4,5,6): State of the “1 to 2” component of valve x of the bridge connected to the delta windings (logical);
  • STATE21_xD_label (x = 1,2,3,4,5,6): State of the “2 to 1” component of valve x of the bridge connected to the delta windings (logical);
  • FAILSIG_xD_label (x = 1,2,3,4,5,6):
  • PeriodY_label: Period of AC voltage measured in the "equiangular" synchronization system of the bridge connected to the Y windings (seconds);
  • PeriodD_label: Period of AC voltage measured in the "equiangular" synchronization system of the bridge connected to the delta windings (seconds);
  • IdRef_label: DC current reference (pu);
  • VdRref_label: DC voltage reference (pu);
  • Mu_label: Commutation angle (degrees);
  • Gamma_label: Extinction angle (degrees);
  • Alpha_label: Firing delay angle generated by the regulation system (degrees);
  • Deblocked_label: Unblocking status flag (logical);
  • CmdComFail_label: Command to simulate a switching failure (logical);
  • CmdInvMode_label: Specifies the rectifier/inverter mode (0 = rectifier; 1 = inverter) (logical);
  • ComFail_label: Detection signal for a switching failure on Y or delta bridge (logical);
  • AlphaRet_label: Signal specifying the forced retard mode (logical).
  • RatioXfo_label: Normalized transformation ratio (Ns/Np) of converter transformer (pu);
  • syn_Vd0_level_label: Mean of the maximum ideal DC voltage (pu) - in the equidistant synchronization system;
  • syn_Alpha_Osc_label: Firing delay angle reflecting the oscillator phase (degrees) - in the equidistant synchronization system;
  • syn_Alpha_measured_label: Measured firing delay angle (degrees) - in the equidistant synchronization system;
  • syn_Delta_alpha_label: Phase variation (positive = lag; negative = lead) of oscillator (degrees) - in the equidistant synchronization system;
  • syn_Vac_ZC_number_label: Count for the 12 zero crossings of switching voltages in the 12 pulse converter [0 to 11] - in the equidistant synchronization system. The 0 count coincides with the zero crossing of the switching voltage of valve 1 on the Y bridge (D) when the delta winding is lagging (or ahead) of the Y winding;
  • syn_Firing_pulse_number_label: Count for the 12 firing of the valves in the 12 pulse converter [0 to 11] - in the equidistant synchronization system. The 0 count coincides with the firing pulse of valve 1 on the Y bridge (D) when the delta winding is lagging (or ahead) of the Y winding;
  • sys_Frequency_label: Measured frequency of AC voltage (Hz) - in the equidistant type synchronization system.
  • No labels

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