The effects of chemical structure,composition of epoxy resin,curing time,accelerants,as well as particle diameter,activity,insulation grade and dosage of silicon dioxide filler with respect to its mechanical properties were (investigated) by determining impact strength and flexural strength of modified-rosin-based epoxy resin.
Tri -level high voltage inverter has special requirements for IGBT driver circuit,such as isolated problem between high --side and low --side,insulation level,dynamic dr ive ability and rapid protection function.
The necessity is described of reactive power compensation in 110kV electric power systems. Technical features of the 110kV insulation level assembling shunt capacitor are discussed to show that has the ability to manufacture this product. The product is commended.
Analyzes operation mode of neutral point in plant power supply system and working characteristics of single-phase grounding, from the viewpoint of increasing power supply reliability and decreasing system insulating level, puts forward the fit situation of all kinds of operation modes.
This paper introduces the structure types of exciting transformer in brief,elaborates determination of exciting transformer technology parameters from the aspects of rated capacity,rated voltage value,wiring group,insulating level and overload ability of temperature rising,resistant voltage and short-circuit current. It discusses exciting transformer on the configuration problem of differential protection,overvoltage protection and overcurrent protection,and hope to provide reference for some static self-excitation system project.
By using the maximum likelihood estimation for the newly proposed model to Japanese 22 and 33kV insulation class cables, they are clustered into a certain number of groups by using the AIC and the generalized likelihood ratio test method.
Electric plant according to CE rules complete with main power panel, control push-button panel made of Stainless Steel insulation class.
Increased operating temper atures must be taken into consideration in the case in question due to the insulation class F provided.
Rotor and exciter windings are made to match the insulation class of the stator.
The winding design of the electrical motors combines a high insulation class and vacuum pressure impregnation, well known for its reliability.