Book Reviews

Real time selective detection of experimentally generated DC series arcs

“…The arc detection itself was rapid, within about 1 to 3 ms. This was comprehensively shown experimentally, along with various operational boundaries associated with threshold voltages, grid inductance, resistance and load capacitance in [11].…”

“…The series arc detection and extinction scheme based on the load side voltage drop associated with the electrode dependent initial arc voltage is proposed in [10,11]. An equivalent circuit with dc grid voltage (V dc ), inductance (L grid ) and resistance (R grid ) supplying power to a constant resistance load parallel to a load capacitance (C load ) is shown in Fig.…”

“…The load voltage response and its interaction with the band pass filter, as the grid inductance, resistance and load capacitance vary, is important in determining the sensitivity of the designed algorithm to trigger at a certain set threshold voltage. In [11], these operational boundaries are comprehensively defined analytically and the sensitivity of the algorithm to varying set threshold voltage is experimentally shown.…”

“…A stable dc voltage source with inductance (L dc ) and resistance (R dc ) represent the grid parameters before the point of common coupling (PCC). Using this abstraction, we can recreate the effect of varying grid inductance and resistance on the fall time of the load voltage and the series arc characteristics [5,11]. Two capacitor paralleled constant resistance loads LOAD1 and LOAD2 are attached to the PCC.…”

“…Working principle for series arc detection a) Equivalent circuit with single constant resistance load b) Load voltage measurement during arcing event[11].…”