Devyaani Garg
Shiv Nadar University (SNU), Greater Noida
Devyaani Garg has created this Calculator and 50+ more calculators!
Payal Priya
Birsa Institute of Technology (BIT), Sindri
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11 Other formulas that you can solve using the same Inputs

Potential difference through voltmeter
Electric Potential Difference=(Electric current through galvanometer*Resistance)+(Electric current through galvanometer*Resistance through galvanometer) GO
Heat Energy when an electric potential difference, time taken, and resistance through a conductor is given
Heat Rate=Electric Potential Difference^2*Time Taken to Travel/Resistance GO
Equivalent resistance in parallel
Equivalent Resistance =(1/Resistance+1/Final Resistance)^(-1) GO
Electromotive force when battery is discharging
Voltage=(Electromotive Force)-(Electric Current*Resistance) GO
Electromotive force when battery is charging
Voltage=(Electromotive Force)+(Electric Current*Resistance) GO
Current in potentiometer
Electric Current=(Potential Gradient*Length)/Resistance GO
Equivalent resistance in series
Equivalent Resistance =Resistance+Final Resistance GO
Power, when electric potential difference and resistance are given,
Power=Electric Potential Difference^2/Resistance GO
Heat generated through resistance
Heat Rate=Electric Current^2*Resistance*Time GO
Power, when electric current and resistance are given
Power=(Electric Current)^2*Resistance GO
Ohm's Law
Voltage=Electric Current*Resistance GO

Voltage across first thyristor in series-connected thyristors Formula

Voltage across thyristor 1 in thyristor string=(Resultant series voltage of thyristor string+(Number of thyristors in series thyristor string -1)*Resistance*Off state current spread of thyristor string)/Number of thyristors in series thyristor string
V<sub>D1</sub>=(V<sub>s</sub>+(n<sub>s</sub>-1)*R*ΔI<sub>D</sub>)/n<sub>s</sub>
More formulas
Leakage current of the collector-base junction GO
Excess work due to thyristor 1 in chopper circuit GO
Discharging current of dv/dt protection thyristor circuits GO
Worst case steady state voltage across first thyristor in series connected thyristors GO
Derating factor of series connected thyristor string GO
Resultant series voltage of series connected thyristor string GO

Why is string connection of thyristors needed?

Thyristors are needed in a string connection to meet the high voltage requirement. Though the rating of individual SCR has greatly increased and SCR with voltage and current rating of 10 kV & 3 kA are readily available, but in the industrial application the voltage and current requirement may be more.

How to Calculate Voltage across first thyristor in series-connected thyristors?

Voltage across first thyristor in series-connected thyristors calculator uses Voltage across thyristor 1 in thyristor string=(Resultant series voltage of thyristor string+(Number of thyristors in series thyristor string -1)*Resistance*Off state current spread of thyristor string)/Number of thyristors in series thyristor string to calculate the Voltage across thyristor 1 in thyristor string, The Voltage across first thyristor in series-connected thyristors formula is the voltage across the first thyristor of the series combination of the thyristors. Voltage across thyristor 1 in thyristor string and is denoted by VD1 symbol.

How to calculate Voltage across first thyristor in series-connected thyristors using this online calculator? To use this online calculator for Voltage across first thyristor in series-connected thyristors, enter Resultant series voltage of thyristor string (Vs), Number of thyristors in series thyristor string (ns), Resistance (R) and Off state current spread of thyristor string (ΔID) and hit the calculate button. Here is how the Voltage across first thyristor in series-connected thyristors calculation can be explained with given input values -> 40 = (20+(3-1)*10*5)/3.

FAQ

What is Voltage across first thyristor in series-connected thyristors?
The Voltage across first thyristor in series-connected thyristors formula is the voltage across the first thyristor of the series combination of the thyristors and is represented as VD1=(Vs+(ns-1)*R*ΔID)/ns or Voltage across thyristor 1 in thyristor string=(Resultant series voltage of thyristor string+(Number of thyristors in series thyristor string -1)*Resistance*Off state current spread of thyristor string)/Number of thyristors in series thyristor string . Resultant series voltage of thyristor string is the resultant voltage of the series combination of ns number of thyristors, Number of thyristors in series thyristor string is the quantity of thyristors in the series combination, Resistance is a measure of the opposition to current flow in an electrical circuit. Its S.I unit is ohm and Off state current spread of thyristor string is the difference between the two currents across adjacent thyristors in the string.
How to calculate Voltage across first thyristor in series-connected thyristors?
The Voltage across first thyristor in series-connected thyristors formula is the voltage across the first thyristor of the series combination of the thyristors is calculated using Voltage across thyristor 1 in thyristor string=(Resultant series voltage of thyristor string+(Number of thyristors in series thyristor string -1)*Resistance*Off state current spread of thyristor string)/Number of thyristors in series thyristor string . To calculate Voltage across first thyristor in series-connected thyristors, you need Resultant series voltage of thyristor string (Vs), Number of thyristors in series thyristor string (ns), Resistance (R) and Off state current spread of thyristor string (ΔID). With our tool, you need to enter the respective value for Resultant series voltage of thyristor string, Number of thyristors in series thyristor string , Resistance and Off state current spread of thyristor string and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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