Design and Performance Analysis of a Series
... air-gap. The transformer was built using Philips 64/10/50 ferrite cores (photo in Fig.23). The transformer primary winding of 12 turns is made on a printed circuit board, it is a multi-layer multi- turn winding, and the secondary has only one planar turn made of aluminium. We partitioned the primary ...
... air-gap. The transformer was built using Philips 64/10/50 ferrite cores (photo in Fig.23). The transformer primary winding of 12 turns is made on a printed circuit board, it is a multi-layer multi- turn winding, and the secondary has only one planar turn made of aluminium. We partitioned the primary ...
Analysis and Design of Controllable Class E Low dv/dt Synchronous
... is to operate as the output choke (LO) forming the dc output current loop. The output voltage is filtered by first-order low-pass output filter, which is formed by the output capacitor (Co) and the load (RL). The filter attenuates the output voltage ripples, so that the output voltage (Vo) is suppor ...
... is to operate as the output choke (LO) forming the dc output current loop. The output voltage is filtered by first-order low-pass output filter, which is formed by the output capacitor (Co) and the load (RL). The filter attenuates the output voltage ripples, so that the output voltage (Vo) is suppor ...
Heater / Filament Supplies
... separate valves) should have their heaters wired in phase. Any noise induced will then be common mode and rejected by the stage (mostly). Valves in parallel singleended stages should have their heaters wires out of phase for mutual cancellation. Using two different colours for the heater wires will ...
... separate valves) should have their heaters wired in phase. Any noise induced will then be common mode and rejected by the stage (mostly). Valves in parallel singleended stages should have their heaters wires out of phase for mutual cancellation. Using two different colours for the heater wires will ...
Novel 9-Steps Automatic Voltage Regulator based on Two Step
... level of voltage to the load. For example, during one jump of voltage controlling let from 240 V to 230 V, this means the relay contacts will connect firstly 240 V then for a short period which during jumping motion there is no voltage from supply to the load i.e. 0 V then connect 230 V to the AC lo ...
... level of voltage to the load. For example, during one jump of voltage controlling let from 240 V to 230 V, this means the relay contacts will connect firstly 240 V then for a short period which during jumping motion there is no voltage from supply to the load i.e. 0 V then connect 230 V to the AC lo ...
Research Article Matrix Converter Based Unified Power Quality
... produced by the system also very low. It also reduced volume and cost, reduced capacitor power losses, together with higher reliability. The Space-Vector Modulation (SVM) is used to control the matrix converter. MATLAB/SIMULINK based simulation results are presented to validate the approach. Keyword ...
... produced by the system also very low. It also reduced volume and cost, reduced capacitor power losses, together with higher reliability. The Space-Vector Modulation (SVM) is used to control the matrix converter. MATLAB/SIMULINK based simulation results are presented to validate the approach. Keyword ...
Study Guide for the Source Inspection of Electrical Equipment
... ability to meet the requirements of the contractual agreements. That process generally leads to a list of pre-approved S/V’s deemed acceptable to the supply chain management of the purchaser and capable of meeting the requirements of the contract prior to it being executed. S/V’s on such a list will ...
... ability to meet the requirements of the contractual agreements. That process generally leads to a list of pre-approved S/V’s deemed acceptable to the supply chain management of the purchaser and capable of meeting the requirements of the contract prior to it being executed. S/V’s on such a list will ...
LT3748 - 100V Isolated Flyback Controller
... The LT3748 is a current mode switching regulator controller designed specifically for the isolated flyback topology. The special problem normally encountered in such circuits is that information relating to the output voltage on the isolated secondary side of the transformer must be communicated to ...
... The LT3748 is a current mode switching regulator controller designed specifically for the isolated flyback topology. The special problem normally encountered in such circuits is that information relating to the output voltage on the isolated secondary side of the transformer must be communicated to ...
How real electric motors work
... again. However, the AC that is produced is no longer at 50Hz, but is at a variable frequency. Even if we just used a conventional induction motor now we’d be ahead, because we’ll be driving it at the optimum frequency, and hence rotational speed, for the required load. However, we can go one better ...
... again. However, the AC that is produced is no longer at 50Hz, but is at a variable frequency. Even if we just used a conventional induction motor now we’d be ahead, because we’ll be driving it at the optimum frequency, and hence rotational speed, for the required load. However, we can go one better ...
Safety Management System
... the other related Sections of this manual as well as Health and Safety File. In addition to the documentation directly related to the systems covered by this manual, other inter-related documentation may need to be consulted to obtain a more comprehensive understanding of not only the service or pla ...
... the other related Sections of this manual as well as Health and Safety File. In addition to the documentation directly related to the systems covered by this manual, other inter-related documentation may need to be consulted to obtain a more comprehensive understanding of not only the service or pla ...
2 Faults, types and effects 2.1 The development of simple distribution systems
... complexity of the system the calculations could also be too much involved. Accurate fault current calculations are normally carried out using an analysis method called symmetrical components. This method is used by design engineers and practicing protection engineers, as it involves the use of highe ...
... complexity of the system the calculations could also be too much involved. Accurate fault current calculations are normally carried out using an analysis method called symmetrical components. This method is used by design engineers and practicing protection engineers, as it involves the use of highe ...
MP4030: Application Note for a TRIAC
... error amplifier compares this current level against a reference produced by a device such as a TL431, and the compensated output determines the primary-side duty cycle to regulate the LED current. Although this control method can directly control the LED current and current accuracy under any condit ...
... error amplifier compares this current level against a reference produced by a device such as a TL431, and the compensated output determines the primary-side duty cycle to regulate the LED current. Although this control method can directly control the LED current and current accuracy under any condit ...
Alberta Reliability standard Transmission Relay Loadability PRC-023-AB-2
... This reliability standard applies to: (a) a legal owner of a transmission facility with load-responsive phase protection systems, as described in Appendix 1 applied to any one (1) or more of the following facilities: (i) transmission lines operated at two hundred (200) kV and above; (ii) transmissio ...
... This reliability standard applies to: (a) a legal owner of a transmission facility with load-responsive phase protection systems, as described in Appendix 1 applied to any one (1) or more of the following facilities: (i) transmission lines operated at two hundred (200) kV and above; (ii) transmissio ...
Understanding Generator Stator Ground Faults
... categorized as lap-connected (where each coil is lapped over the next to form the winding) or wave-connected (where coil sides are located under alternating poles around the stator). A lap connection is preferred over a wave-connected winding because it is easier to connect the coils. The turns that ...
... categorized as lap-connected (where each coil is lapped over the next to form the winding) or wave-connected (where coil sides are located under alternating poles around the stator). A lap connection is preferred over a wave-connected winding because it is easier to connect the coils. The turns that ...
35 W wide-range high power factor flyback converter evaluation
... EVL6562A-35WFLB evaluation board using the L6562A . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 EVL6562A-35WFLB evaluation board: electrical schematic . . . . . . . . . . . . . . . . . . . . . . . . 6 EVL6562A-35WFLB compliance with EN61000-3-2 Class-C limits @ full load . . . . . . . . . ...
... EVL6562A-35WFLB evaluation board using the L6562A . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 EVL6562A-35WFLB evaluation board: electrical schematic . . . . . . . . . . . . . . . . . . . . . . . . 6 EVL6562A-35WFLB compliance with EN61000-3-2 Class-C limits @ full load . . . . . . . . . ...
Transformer
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. Commonly, transformers are used to increase or decrease the voltages of alternating current in electric power applications.A varying current in the transformer's primary winding creates a varying magnetic flux in the transformer core and a varying magnetic field impinging on the transformer's secondary winding. This varying magnetic field at the secondary winding induces a varying electromotive force (EMF) or voltage in the secondary winding. Making use of Faraday's Law in conjunction with high magnetic permeability core properties, transformers can thus be designed to efficiently change AC voltages from one voltage level to another within power networks.Since the invention of the first constant potential transformer in 1885, transformers have become essential for the transmission, distribution, and utilization of alternating current electrical energy. A wide range of transformer designs are encountered in electronic and electric power applications. Transformers range in size from RF transformers less than a cubic centimeter in volume to units interconnecting the power grid weighing hundreds of tons.