Fault magnitude is calculated using unsaturated regions of a current waveform captured by the line-mounted device. The method of determining the unsaturated regions is computationally efficient. Fictitious peaks are removed, and the unsaturated regions are determined based on fractions of the valid peaks...
A transformer type superconducting fault current limiter (FCL) for electric power grids was developed utilizing a nonlinear resistor made of the second generation HTS wire. Using of the second generation HTS wire instead of the first one was found to reduce by an order the required amount of sup...
A Fault Current Limiter (FCL) assembly has been successfully constructed and tested at high power levels. A prospective current of 90 kA was successfully ... V Selvamanickam,Y Chen,X Xiong,... - 《IEEE Transactions on Applied Superconductivity》 被引量: 188发表: 2007年 Tests of 100 kW Hig...
A cumulative current converter usually consists of an annular core with a winding surrounding current-carrying conductors in which the voltages at the ends of the winding are transmitted to an evaluation circuit with differential current amplifier. According to the invention, the winding (10) has a...
Through fault current may result abnormalities. Dissolved Gas Analysis (DGA) can be used for knowing the impact of abnormalities on transformers. In the event of abnormalities on transformers, insulation oil as hydrocarbon chains will break down due to the amount of energy and will form hydrocarbon...
Although the magnitude of inrush current is so high but it generally does not create any permanentfault in transformeras it exists for very small time. But stillinrush current in power transformeris a problem, because it interferes with the operation of circuits as they have been designed to ...
Fault detection circuit of current transformer side DU/DT filter circuit and detection method thereofFault detection circuit of current transformer side DU/DT filter circuit and detection method thereofThe invention relates to a fault detection circuit of a current transformer side DU/DT filter circuit...
MD series residual current sensor (RCD/RCM) is an ideal protection device, for the detection and protection of different leakage currents/residual currents/fault currents. The RCD could quickly output alarm signal when people get an electric shock or...
Ground fault current sensor Product Name zero phase current transformer type current transformer Name: zero phase current transformer Application converter. Package Carton Material magnetic core, copper wire, plastic bobbin Condition 100%new Shipping Term DHL Fedex TNT EMS UPS Core material: Ferrite Coil...
Power Supply:DC/AC 220v/110v;Voltage Input:DC/AC 220v/110v;Protecting current:0.5-100A;Application:Circuit, Motor, transformer, Capacitor, etc protection;Power Consumption:≤12W(DC);Rated frequency:50-60Hz;Record function:Event, fault, ime, operation , e