Design and Performance of 40 cm Ion Optics
... The ion extraction capability of the 40 cm ion optics was analyzed first. Because the ion optics’ aperture geometry of the NSTAR thruster was utilized, 30 cm ion optics data could be used to predict 40 cm ion optics’ performance. Average beam currents per aperture (or beamlet currents) as a function ...
... The ion extraction capability of the 40 cm ion optics was analyzed first. Because the ion optics’ aperture geometry of the NSTAR thruster was utilized, 30 cm ion optics data could be used to predict 40 cm ion optics’ performance. Average beam currents per aperture (or beamlet currents) as a function ...
Planning Guidelines - SUNNY TRIPOWER 60
... The STP 60 system consists of the Sunny Tripower 60, a DC String-Combiner and the SMA Inverter Manager. The communication network of a STP 60 system is divided into two Ethernet networks: system network and inverter network. The system network is the communication interface to the STP 60 system and ...
... The STP 60 system consists of the Sunny Tripower 60, a DC String-Combiner and the SMA Inverter Manager. The communication network of a STP 60 system is divided into two Ethernet networks: system network and inverter network. The system network is the communication interface to the STP 60 system and ...
Service Manual - SUNNY BOY 3000TL / 3600TL / 4000TL
... • Knowledge of how an inverter works and is operated • Training in how to deal with the dangers and risks associated with installing and using electrical devices and installations • Training in the installation and commissioning of electrical devices and installations • Knowledge of the applicable s ...
... • Knowledge of how an inverter works and is operated • Training in how to deal with the dangers and risks associated with installing and using electrical devices and installations • Training in the installation and commissioning of electrical devices and installations • Knowledge of the applicable s ...
Aalborg Universitet
... purpose [21–23]. Appropriate voltage profile at different buses and the quality of service (QoS) for the PEV owners are among the major constraints in the proposed algorithm. Considering the physical constraints of electric equipment in the system, i.e., transformer nominal power and nominal current ...
... purpose [21–23]. Appropriate voltage profile at different buses and the quality of service (QoS) for the PEV owners are among the major constraints in the proposed algorithm. Considering the physical constraints of electric equipment in the system, i.e., transformer nominal power and nominal current ...
The Restoration of Valved High Frequency Communications
... Styling: the Hallicrafters Super Skyrider SX28 Overkill for SSB: the Hoffman CV-157 Collectability: the Eddystone S940C Heavily Screened: the Eddystone S880/2 British Coilpack Set: the Eddystone S358X/B34 Post-war Super Skyrider: the Hallicrafters SX62A Last of the Line: the Drake R4C The Most Famou ...
... Styling: the Hallicrafters Super Skyrider SX28 Overkill for SSB: the Hoffman CV-157 Collectability: the Eddystone S940C Heavily Screened: the Eddystone S880/2 British Coilpack Set: the Eddystone S358X/B34 Post-war Super Skyrider: the Hallicrafters SX62A Last of the Line: the Drake R4C The Most Famou ...
the restoration - Waverley Amateur Radio Society
... Mallory R-390A electrolytic capacitor with new innards. All done using a lathe, two new 105°C-rated capacitors, and some Kapton tape. Then potted in Araldite, keeping the blow-out plugs clear. ...
... Mallory R-390A electrolytic capacitor with new innards. All done using a lathe, two new 105°C-rated capacitors, and some Kapton tape. Then potted in Araldite, keeping the blow-out plugs clear. ...
Arc root commutation from moving contacts in low voltage
... The stronger effect of the venting on the cathode motion, and the lower cathode root times on the moving contact is contrary to expectations, where as discussed in Section II, the cathode delay time for crossing a gap has generally been observed to be longer than for an anode. The reason for this di ...
... The stronger effect of the venting on the cathode motion, and the lower cathode root times on the moving contact is contrary to expectations, where as discussed in Section II, the cathode delay time for crossing a gap has generally been observed to be longer than for an anode. The reason for this di ...
Low ESR SMD Tantalum Capacitors for Aerospace
... One of the main ways to reduce the ESR of conventional large case MnO2 SMD solid tantalum capacitors is to use a multianode concept (i.e. use more node elements within one capacitor body). Such devices have been tested by CNES in cooperation with ESA. Testing similar to ESA ESCC 2263000 evaluation t ...
... One of the main ways to reduce the ESR of conventional large case MnO2 SMD solid tantalum capacitors is to use a multianode concept (i.e. use more node elements within one capacitor body). Such devices have been tested by CNES in cooperation with ESA. Testing similar to ESA ESCC 2263000 evaluation t ...
AFH 32-1290(I) Cathodic Protection Field Testing
... 1.2.6. Note location of structure connection for all potential measurements. 1.2.6.1. When the structure connection location is changed, it must be recorded in the data, and a portion of previous readings should be duplicated to ensure consistency of data (and continuity of the structure). 1.2.6.2. ...
... 1.2.6. Note location of structure connection for all potential measurements. 1.2.6.1. When the structure connection location is changed, it must be recorded in the data, and a portion of previous readings should be duplicated to ensure consistency of data (and continuity of the structure). 1.2.6.2. ...
VS-16TTS..FPPbF Series, VS-16TTS...FP-M3 Series
... statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. Parameters provided in datasheets and / or ...
... statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. Parameters provided in datasheets and / or ...
Aalborg Universitet Connected Inverter Systems
... which represents a simple LPF with τ = 2/µ being its time constant. The settling time of the AF can then be approximated as 4τ = 8/µ [8], [10]. Considering the delay induced by the LF, the EPLL will present slow dynamics, and thus it is not a good solution for the applications requiring fast respons ...
... which represents a simple LPF with τ = 2/µ being its time constant. The settling time of the AF can then be approximated as 4τ = 8/µ [8], [10]. Considering the delay induced by the LF, the EPLL will present slow dynamics, and thus it is not a good solution for the applications requiring fast respons ...
Grid Code
... Netz" (NAN) [5]. If a connectee has more than one grid connection point on the ENE grid or with other grid operators, these may not be operated interconnected through the connectee’s plants. Establishing a set voltage value for normal operation and a voltage band at the grid connection point is the ...
... Netz" (NAN) [5]. If a connectee has more than one grid connection point on the ENE grid or with other grid operators, these may not be operated interconnected through the connectee’s plants. Establishing a set voltage value for normal operation and a voltage band at the grid connection point is the ...
Touch and Step Potential Calculations
... As described in IEEE Std 80 Section 11.3.1.1, there are alternative methods to formulate this equation, all of which can also be derived from first principles). There are also additional factors that should be considered (e.g. taking into account future growth in fault levels), as discussed in IEEE ...
... As described in IEEE Std 80 Section 11.3.1.1, there are alternative methods to formulate this equation, all of which can also be derived from first principles). There are also additional factors that should be considered (e.g. taking into account future growth in fault levels), as discussed in IEEE ...
Rectification - NYCC SP-01
... rectification even though the same function is served DISADVANTAGES OF FOUR VALVE-TUBE RECTIFICATION: 1. High cost ($250 per valve-tube) ...
... rectification even though the same function is served DISADVANTAGES OF FOUR VALVE-TUBE RECTIFICATION: 1. High cost ($250 per valve-tube) ...
Cálculo de Puesta a Tierra
... Computing the current division factor is a task that is specific to each project and the fault location and it may incorporate some subjectivity (i.e. "engineeing judgement"). In any case, IEEE Std 80 Section 15.9 has a good discussion on calculating the current division factor. In the most conserva ...
... Computing the current division factor is a task that is specific to each project and the fault location and it may incorporate some subjectivity (i.e. "engineeing judgement"). In any case, IEEE Std 80 Section 15.9 has a good discussion on calculating the current division factor. In the most conserva ...
Magnetron Theory of Operation
... change in thermal profile. During the time required for each part of the magnetron to stabilize at its normal operating temperature, the output frequency of the magnetron will "drift." The curve of output frequency vs. time during the period following initial turn on is called the "Thermal Drift" cu ...
... change in thermal profile. During the time required for each part of the magnetron to stabilize at its normal operating temperature, the output frequency of the magnetron will "drift." The curve of output frequency vs. time during the period following initial turn on is called the "Thermal Drift" cu ...
Philips Technic`al` `Review
... A comproIIl;Îsetherefore becomes imperative, and consists in fixing the permissible series resistance R and tolerating the corresponding dissipating current. Fortunately in this way very low dissipating currents (less than 1 mA for 450 volts 'at several fJ.F)have been realised. ...
... A comproIIl;Îsetherefore becomes imperative, and consists in fixing the permissible series resistance R and tolerating the corresponding dissipating current. Fortunately in this way very low dissipating currents (less than 1 mA for 450 volts 'at several fJ.F)have been realised. ...
Aalborg Universitet grid-connected voltage source converters
... It is therefore of interest to develop active damping with grid current feedback control [14]-[16]. Unlike the capacitor current feedback through a proportional gain, the s2 term is needed for the virtual resistive damping, which is difficult to implement in digital or analog controllers. Hence, a s ...
... It is therefore of interest to develop active damping with grid current feedback control [14]-[16]. Unlike the capacitor current feedback through a proportional gain, the s2 term is needed for the virtual resistive damping, which is difficult to implement in digital or analog controllers. Hence, a s ...
Aalborg Universitet Analysis and design of grid-current
... It is therefore of interest to develop active damping with grid current feedback control [14]-[16]. Unlike the capacitor current feedback through a proportional gain, the s2 term is needed for the virtual resistive damping, which is difficult to implement in digital or analog controllers. Hence, a s ...
... It is therefore of interest to develop active damping with grid current feedback control [14]-[16]. Unlike the capacitor current feedback through a proportional gain, the s2 term is needed for the virtual resistive damping, which is difficult to implement in digital or analog controllers. Hence, a s ...
E-2 CATHODIC PROTECTION
... Corrosion Controller - An automatic or manually operated device, in a controlled or regulated cathodic protection system, to regulate the flow of electric current for corrosion control. Corrosion Monitor - An installed hull potential meter (voltmeter) capable of measuring the voltage difference betw ...
... Corrosion Controller - An automatic or manually operated device, in a controlled or regulated cathodic protection system, to regulate the flow of electric current for corrosion control. Corrosion Monitor - An installed hull potential meter (voltmeter) capable of measuring the voltage difference betw ...
Equipment Operation Manual for X
... trapped pockets of gas behave as virtual leaks and prevent the system from attaining its minimum pressure. As pumping time increases, these pockets of gas eventually pump out (“outgas”), but can take several hours or days for this process to be complete. ...
... trapped pockets of gas behave as virtual leaks and prevent the system from attaining its minimum pressure. As pumping time increases, these pockets of gas eventually pump out (“outgas”), but can take several hours or days for this process to be complete. ...
FEASIBILITY OF A PLASMA CONTACT FOR FARADAY
... consists of co-axial electrodes with an air gap of 1mm with the inner electrode being the anode that can be rotated about its axis as required. Experiments were performed at 9.1 ii ...
... consists of co-axial electrodes with an air gap of 1mm with the inner electrode being the anode that can be rotated about its axis as required. Experiments were performed at 9.1 ii ...
1. General Description of Aluminum Electrolytic Capacitors
... high value of capacitance is now attainable. That is to say that the electrolyte is now functioning as a cathode. The basic characteristics required of an electrolyte are listed below: ...
... high value of capacitance is now attainable. That is to say that the electrolyte is now functioning as a cathode. The basic characteristics required of an electrolyte are listed below: ...
Aalborg Universitet Connected Inverter based on Impedance Based Harmonic Analysis
... kind of harmonic compensation methods have been used in the different topologies [6, 20, 21]. In particular, the most reliable method for harmonic compensation is to increase the gain of the current controller at each harmonic frequency. Hence, only the proportional resonant controller will be consi ...
... kind of harmonic compensation methods have been used in the different topologies [6, 20, 21]. In particular, the most reliable method for harmonic compensation is to increase the gain of the current controller at each harmonic frequency. Hence, only the proportional resonant controller will be consi ...
Thesis_Final_010824_Ok
... The Focal Plane Detector The upgrading of the National Superconducting Cyclotron Laboratory resulted in an increase in types and intensities of radioactive beams available at the NSCL. A need arose to develop a detection system to utilize the new capabilities. To take advantage of these new beams, a ...
... The Focal Plane Detector The upgrading of the National Superconducting Cyclotron Laboratory resulted in an increase in types and intensities of radioactive beams available at the NSCL. A need arose to develop a detection system to utilize the new capabilities. To take advantage of these new beams, a ...
Tetrode
A tetrode is a vacuum tube having four active electrodes. There are several varieties of tetrode with screen-grid tube, and the beam tetrode being the most common. The four electrodes in order from the centre are: a thermionic cathode, first and second grids and a plate. In screen-grid tubes and beam tetrodes, the first grid is the control grid and the second grid is the screen grid. In other tetrodes one of the grids is a control grid, while the other may have a variety of functions.During the period 1913 to 1927, three distinct types of tetrode valves appeared. All had a normal control grid whose function was to act as a primary control for current passing through the tube, but they differed according to the intended function of the other grid. In order of historical appearance these are: the space-charge grid tube, the bi-grid valve, and the screen-grid tube. The last of these appeared in two distinct variants with different areas of application: the screen-grid valve proper, which was used for medium-frequency, small signal amplification, and the beam tetrode which appeared later, and was used for audio or radio-frequency power amplification. The former was quickly superseded by the rf pentode, while the latter was initially developed as an alternative to the pentode as an audio power amplifying device. The beam tetrode was also developed as a high power radio transmitting tube, and has remained in use until quite recently in both applications.