means a resistance value high impedance faults Reg. 5 def. of in ohms that is equal to twice the nominal high impedance phase-to-ground network voltage in volts; faults inserted by S.R. No. 32/2016 reg. 5. means a measure of the thermal energy Reg. 5 def. of I2t I2t inserted by associated with the current flow, where I is S.R. No. the current flow in amps and t is the duration 32/2016 reg. 5. of current flow in seconds; means a resistance value low impedance faults Reg. 5 def. of low in ohms that is equal to the nominal impedance ground network voltage in volts divided by faults inserted by 31·75; S.R. No. 32/2016 reg. 5. means an electric line polyphase electric line Reg. 5 def. of polyphase comprised of more than one phase of electric line electricity with a nominal voltage inserted by S.R. No. between 1 kV and 22 kV; 32/2016 reg. 5. means, in the event of a Reg. 5 def. of required capacity required phaseto-ground fault on a polyphase capacity electric line, the ability— inserted by S.R. No. 32/2016 reg. 5. (a) to reduce the voltage on the faulted conductor in relation to the station earth when measured at the corresponding zone substation for high impedance faults to 250 volts within 2 seconds; and (b) to reduce the voltage on the faulted conductor in relation to the station earth when measured at the corresponding zone substation for low impedance faults to— (i) 1900 volts within 85 milliseconds; and
Reg. 5 def. of high impedance faults inserted by S.R. No. 32/2016 reg. 5. high impedance faults means a resistance value in ohms that is equal to twice the nominal phase-to-ground network voltage in volts; Reg. 5 def. of I2t inserted by S.R. No. 32/2016 reg. 5. I2t means a measure of the thermal energy associated with the current flow, where I is the current flow in amps and t is the duration of current flow in seconds; Reg. 5 def. of low impedance faults inserted by S.R. No. 32/2016 reg. 5. low impedance faults means a resistance value in ohms that is equal to the nominal network voltage in volts divided by 31·75; Reg. 5 def. of polyphase electric line inserted by S.R. No. 32/2016 reg. 5. polyphase electric line means an electric line comprised of more than one phase of electricity with a nominal voltage between 1 kV and 22 kV; Reg. 5 def. of required capacity inserted by S.R. No. 32/2016 reg. 5. required capacity means, in the event of a phaseto-ground fault on a polyphase electric line, the ability— (a) to reduce the voltage on the faulted conductor in relation to the station earth when measured at the corresponding zone substation for high impedance faults to 250 volts within 2 seconds; and (b) to reduce the voltage on the faulted conductor in relation to the station earth when measured at the corresponding zone substation for low impedance faults to— (i) 1900 volts within 85 milliseconds; and ground
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