In order to make a few thousand equipments take normal effects, the author has synthesized various of opinions and proposes technical modification ways, The action voltage and the value of current is readjusted. Through the trial running in the collieries of two bureaus, more satisfied results have been obtained.
The proposed approach possesses following advantages: suitable to frequent action; accurate and stable action voltage that is easy to adjust,fast response speed,low residual voltage and high blowout capacity. The principle of triggering thyristor valve by BOD,its design highlights and features are analyzed.
When a circuit-breaker is to be tested， It' s usually necessary to measure its time of closing and opening，the lowest actuating voltage and etc. For security，another power source is often used instead of that for control．Characteristic of this source would have some influences on measured results，of which certain analysis is benificial．
The protection setting values,such as the actuating voltage of zero sequence voltage component and the actuating direction of negative sequence power directional component are determined in accordance with the structure of generator stator core and the connection mode of stator windings.
The value of operating voltage 3U 0 should be set by calculation according to the transformer voltage,or the 3U 0 ground fault protection should extend the zero-sequence voltage of the station service electrical system as the restraint quantity for obtaining the operating dead-zone not more than 5%.
Then the optimization of the structural parameters is performed, and the characteristics are analyzed, such as the resonance time, output spectrum, operation voltage, insertion loss and crosstalk were analyzed.
The dependences of the current density on the operation voltage, the thickness of the organic layer, and the trap properties are numerically studied.
The optimum pressure increases linearly with the operation voltage.
The response surface plots using three experimental designs revealed a separation optimum with Tris-HCl buffer of pH 8.5, a concentration of 50?mM, and an operation voltage of 30?kV.
The new integrated DMC/PCR chips only required an operation voltage of 12VRMS at a frequency of 3 KHz for digital microfluidic actuation and 9VDC for thermal cycling.