Joint meeting Next meeting reminder, March 2012 Minutes
... Steve then discussed issues that need to be considered when deciding whether to do electrical maintenance work ‘alive’ or ‘dead’. These include: • Can the normal policy of ‘dead working’ be carried out? • Is it unreasonable for the work to be done ‘dead’? • Identify risks and control methods. • Dec ...
... Steve then discussed issues that need to be considered when deciding whether to do electrical maintenance work ‘alive’ or ‘dead’. These include: • Can the normal policy of ‘dead working’ be carried out? • Is it unreasonable for the work to be done ‘dead’? • Identify risks and control methods. • Dec ...
File - ELECTRICAL ENGINEERING DEPT, DCE
... A DC generator requires an excitation circuit to generate an induce voltage depending on whether excitation circuit consumes power for the armature of the machine or from separately require power supply. Generators may be classified as self excited or separately excited generators respectively. The ...
... A DC generator requires an excitation circuit to generate an induce voltage depending on whether excitation circuit consumes power for the armature of the machine or from separately require power supply. Generators may be classified as self excited or separately excited generators respectively. The ...
ABB drives - Technical guide No. 5 - Bearing currents in modern AC
... over the bearing. In the case of high frequency bearing currents, this voltage can be generated in three different ways. The most important factors that define which mechanism is prominent, are the size of the motor and how the motor frame and shaft are grounded. The electrical installation, meaning ...
... over the bearing. In the case of high frequency bearing currents, this voltage can be generated in three different ways. The most important factors that define which mechanism is prominent, are the size of the motor and how the motor frame and shaft are grounded. The electrical installation, meaning ...
Integrated magnetic full wave converter with flexible
... From this point of view, the circuit in Fig. 1 is a special case of the proposed topology. 2) Design Considerations: The transformer design for the new circuit has the flexibility to select the number of inductor winding turns, which can vary from zero to any reasonable number. When the inductor win ...
... From this point of view, the circuit in Fig. 1 is a special case of the proposed topology. 2) Design Considerations: The transformer design for the new circuit has the flexibility to select the number of inductor winding turns, which can vary from zero to any reasonable number. When the inductor win ...
System Identification and Integration Design of an Air/Electric Motor
... an electric motor based on a field programmable gate array (FPGA) controller. Since the emission of an air motor is air, there will be no air pollutants released into the atmosphere, and this feature corresponds well with the electric motors. Air motors produce very high specific power. They require ...
... an electric motor based on a field programmable gate array (FPGA) controller. Since the emission of an air motor is air, there will be no air pollutants released into the atmosphere, and this feature corresponds well with the electric motors. Air motors produce very high specific power. They require ...
Between AC source and primary of step
... 150% of required mAs value for manual setting - mAs is limited to 600 mAs for exposures over 50 kVp Example: An AEC calls for 200 mA at .5 S exposure, what back-up timer setting should be used? .5 X 1.5 = .75 S back-up time If setting back-up timer using mAs 200 mA X .5 S = 100 mAs X 1.5 = 150 mAs b ...
... 150% of required mAs value for manual setting - mAs is limited to 600 mAs for exposures over 50 kVp Example: An AEC calls for 200 mA at .5 S exposure, what back-up timer setting should be used? .5 X 1.5 = .75 S back-up time If setting back-up timer using mAs 200 mA X .5 S = 100 mAs X 1.5 = 150 mAs b ...
EM Induction 2
... induced emf is such that it opposes the change of flux. According to the laws of energy conservation, the emf must try to oppose or resist whatever flux change is causing it. ...
... induced emf is such that it opposes the change of flux. According to the laws of energy conservation, the emf must try to oppose or resist whatever flux change is causing it. ...
Components and Methods for Current Measurement
... A current transformer (Fig. 1) provides three key advantages: isolation from line voltage; lossless current measurement; and a large signal voltage that can provide noise immunity. This indirect current measurement method requires a changing current such as an AC, transient current, or switched DC - ...
... A current transformer (Fig. 1) provides three key advantages: isolation from line voltage; lossless current measurement; and a large signal voltage that can provide noise immunity. This indirect current measurement method requires a changing current such as an AC, transient current, or switched DC - ...