Cable System Transient Study
... The experiments verify the consistent occurrence of repetitive prestrikes and re-ignitions in a cable system. The occurrence is determined by the electrical circuit and the point-on-wave of switching operations. Surge arresters always limit the maximum voltage magnitude but voltage steps with a ...
... The experiments verify the consistent occurrence of repetitive prestrikes and re-ignitions in a cable system. The occurrence is determined by the electrical circuit and the point-on-wave of switching operations. Surge arresters always limit the maximum voltage magnitude but voltage steps with a ...
Electronics and Electrical instruments
... driven by motors through RS232 of PC . Possibilities of local control by buttons. Included two digital instruments 3 ½ digits for the reading of the supplied voltage, two insulation transformers for separation of the output voltage and switch to reduce the output voltage to 1/10 of the nominal volta ...
... driven by motors through RS232 of PC . Possibilities of local control by buttons. Included two digital instruments 3 ½ digits for the reading of the supplied voltage, two insulation transformers for separation of the output voltage and switch to reduce the output voltage to 1/10 of the nominal volta ...
Untitled
... Preface Electric power quality requirements are very high nowadays. This quality is assessed by means of many of parameters, including harmonic distortion, which means, that voltage or current waveform is not perfectly sinusoidal. Such distortion is caused by harmonic currents, generated by nonline ...
... Preface Electric power quality requirements are very high nowadays. This quality is assessed by means of many of parameters, including harmonic distortion, which means, that voltage or current waveform is not perfectly sinusoidal. Such distortion is caused by harmonic currents, generated by nonline ...
DC Machines
... A Double layer winding means that each slot will house two coil sides (obviously belonging to two different coils). Physically one coil side is placed in the lower portion of the slot while the other is placed above it. It is because of this reason such an arrangement of the winding is called a doub ...
... A Double layer winding means that each slot will house two coil sides (obviously belonging to two different coils). Physically one coil side is placed in the lower portion of the slot while the other is placed above it. It is because of this reason such an arrangement of the winding is called a doub ...
Stray capacitances of single-layer solenoid air-core inductors
... taken into account. An equivalent lumped parallel capacitance is derived. The method was tested by experimental measurements. The calculated and measured values were in good agreement in the considered cases. The derived expressions are useful for designing HF inductors and can also be adopted for m ...
... taken into account. An equivalent lumped parallel capacitance is derived. The method was tested by experimental measurements. The calculated and measured values were in good agreement in the considered cases. The derived expressions are useful for designing HF inductors and can also be adopted for m ...
LAPORAN PROJEK SARJANA MUDA
... In these days, power quality is becoming an important role in electrical power system. Voltage sags is one of the most harmful power quality disturbances because it can bring negative affect mostly on the sensitive loads. Basically, the characteristic of the voltage sag is important things to unders ...
... In these days, power quality is becoming an important role in electrical power system. Voltage sags is one of the most harmful power quality disturbances because it can bring negative affect mostly on the sensitive loads. Basically, the characteristic of the voltage sag is important things to unders ...
1 STN-75/2015 TECHNICAL SPECIFICATION OF 33KV VACUUM
... The core shall be high grade non-ageing electrical silicon-laminated steel of low hysterisis loss and high permeability to ensure high accuracy, at both normal and over current. The secondary terminals shall be brought into a compartment on one side of current transformer for easy access. The Second ...
... The core shall be high grade non-ageing electrical silicon-laminated steel of low hysterisis loss and high permeability to ensure high accuracy, at both normal and over current. The secondary terminals shall be brought into a compartment on one side of current transformer for easy access. The Second ...
UM10395 UBA2014 evaluation board Rev. 2 — 16 September 2010 User manual
... The board can be supplied by either a high voltage DC or a mains AC input. For most applications the high voltage DC input should be used. In the final product, a Power Factor Correction (PFC) of choice may be used to replace the high voltage DC supply. For some applications (such as CFL application ...
... The board can be supplied by either a high voltage DC or a mains AC input. For most applications the high voltage DC input should be used. In the final product, a Power Factor Correction (PFC) of choice may be used to replace the high voltage DC supply. For some applications (such as CFL application ...
2.5 Electrical Power 2.5.1 Class 1E Emergency Power Supply System
... are essential to reactor shutdown, containment isolation and heat removal, reactor core cooling, and preventing a significant release of radioactive material to the environment. The EPSS distributes power to safety-related and non-safety-related plant loads during normal and abnormal operations. EPS ...
... are essential to reactor shutdown, containment isolation and heat removal, reactor core cooling, and preventing a significant release of radioactive material to the environment. The EPSS distributes power to safety-related and non-safety-related plant loads during normal and abnormal operations. EPS ...
Smart earth leakage protection
... faults, which would lead to this situation. The current can be injected with two methods: Permanent Leakages. The unit injects current in the earthing elements permanently. This type of behaviour is closely tied to the use of EMI filters, which are installed in most machines or loads with electronic ...
... faults, which would lead to this situation. The current can be injected with two methods: Permanent Leakages. The unit injects current in the earthing elements permanently. This type of behaviour is closely tied to the use of EMI filters, which are installed in most machines or loads with electronic ...
Stationary Power Distribution Unit (SPDU) 3-phase, 75
... the main input circuit breaker, and the status of a remote alarm contact. Local audio and visual alarms are initiated when the core temperature of the transformer exceeds maximum parameters. The main input circuit breaker is then tripped or the remote alarm contact is closed. • Advanced (p/n PDAMN10 ...
... the main input circuit breaker, and the status of a remote alarm contact. Local audio and visual alarms are initiated when the core temperature of the transformer exceeds maximum parameters. The main input circuit breaker is then tripped or the remote alarm contact is closed. • Advanced (p/n PDAMN10 ...
MB39C602 - Fujitsu
... The DRN pin is connected with the VDD pin through the internal VDD Switch, and VDD capacitor (CVDD) is charged from the DRN pin. When the voltage at the VDD pin reaches the threshold voltage of UVLO, the VDD Switch is turned off, and the internal Bias circuit operates, and the switching is started. ...
... The DRN pin is connected with the VDD pin through the internal VDD Switch, and VDD capacitor (CVDD) is charged from the DRN pin. When the voltage at the VDD pin reaches the threshold voltage of UVLO, the VDD Switch is turned off, and the internal Bias circuit operates, and the switching is started. ...
Circuit analysis of magnetic couplings between circular turn and
... been built a measuring system was built. Voltages and currents were discretized and recorded on an oscilloscope. These values were analyzed using with use of MATLAB. Using the least squares method (LSM) parameters the coil parameters were calculated. In order to reduce interference the Savitzky-Gola ...
... been built a measuring system was built. Voltages and currents were discretized and recorded on an oscilloscope. These values were analyzed using with use of MATLAB. Using the least squares method (LSM) parameters the coil parameters were calculated. In order to reduce interference the Savitzky-Gola ...
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.