where is |U i | the voltage magnitude of bus I, and Umin and Umax are minimum and maximum allowable voltages, respectively, which are considered as U min = 0.95 pu and Umax = 1.05 pu.
These intervals are expressed as follows: U min ≤ U i ≤ U max (2) I i ≤ I i, max, (3)where U i is the voltage magnitude of bus I and U min and U max are minimum and maximum allowable voltages, respectively, which are considered as U min = 0.95 pu and U max = 1.05 pu.
As might be expected, the maximum allowable regeneration voltage was directly related to the zeta potential of the nanoporous coating on the working electrode under the specific test conditions.
If the active power or reactive power reference is constant, current may exceed the maximum allowable value during voltage sags.
Vmax maximum permissible voltage.
The protection is considered to be effective (for 400 V electrical installations) if the overcurrent protection trip takes less than 0.4 s (maximum allowable time of touching voltage occurrence).
Whether a unipolar or a bipolar rectifier is preferred depends on many device parameters, such as reverse blocking voltage, forward current density, maximum allowable reverse current density, operating temperature, and switching frequency.
The SRG can be controlled through various parameters, such as the turn-on angle, the turn-off angle, the maximum allowable current, as well as the supply voltage.
Sev(St)_{v} = hbox{max} left( {frac{{T_{{{text{low}}v}} }}{{T_{vhbox{max} } }}} right) (4 where Tlowv is the time duration when the bus voltage decreases to 0.75 p.u., Tvmax is the maximum allowable time (generally equals to 1 s).
The maximum allowable power in the system was 10 W at DC voltages not exceeding 2,000 V and a current of 0.01 mA (according to instruction of ThermoScientific ver. 1.0).
