Telecommunications glossary
... Video conferencing with the old phone network needed many telephone connections, which needed to be checked extensively before use and still did not guarantee a solid connection. This has been greatly improved with the use of ISDN lines. Even with an ISDN line there can be a slow down through the am ...
... Video conferencing with the old phone network needed many telephone connections, which needed to be checked extensively before use and still did not guarantee a solid connection. This has been greatly improved with the use of ISDN lines. Even with an ISDN line there can be a slow down through the am ...
TechTopics
... performance, manufacturing cost, equipment size, ease of assembly and installation, and a host of other factors. The manufacturer seeks to minimize the variations between various designs (e.g., between 1200A, 2000A, 3000A, and 4000A configurations) and to maximize the use of standard components acro ...
... performance, manufacturing cost, equipment size, ease of assembly and installation, and a host of other factors. The manufacturer seeks to minimize the variations between various designs (e.g., between 1200A, 2000A, 3000A, and 4000A configurations) and to maximize the use of standard components acro ...
GNS ESI RF2173
... +90°C. As the voltage is increased, however, the output power will increase. Thus, in a system design, the ALC (Automatic Level Control) Loop will back down the power to the desired level. This must occur during operation, or the device may be damaged from too much power dissipation. At 5.0V, over + ...
... +90°C. As the voltage is increased, however, the output power will increase. Thus, in a system design, the ALC (Automatic Level Control) Loop will back down the power to the desired level. This must occur during operation, or the device may be damaged from too much power dissipation. At 5.0V, over + ...
lab sheet - Faculty of Engineering
... fixed in advance at every bus because the loss in the system is not known until the study is complete. The generators at the swing bus supply the difference between the specified real power into the system at the other buses and the total system output plus losses. Both voltage ...
... fixed in advance at every bus because the loss in the system is not known until the study is complete. The generators at the swing bus supply the difference between the specified real power into the system at the other buses and the total system output plus losses. Both voltage ...
Fast topology detection based on open line detection relays, a
... The first method consists in monitoring all protection signals likely to order the opening of the line. This method is implemented in all the DLO. For the other line opening events such as a manual command, one of the two other methods are used. For tie lines that are subject to very low or reversin ...
... The first method consists in monitoring all protection signals likely to order the opening of the line. This method is implemented in all the DLO. For the other line opening events such as a manual command, one of the two other methods are used. For tie lines that are subject to very low or reversin ...
Signature Journal - Power Quality Solutions for SSMC Singapore
... As a high-tech wafer plant with a capacity of 30,000 silicon wafers per month, any power quality issue would have significant financial impact on the ...
... As a high-tech wafer plant with a capacity of 30,000 silicon wafers per month, any power quality issue would have significant financial impact on the ...
Pololu 5Vstep-down regulator (Included but not
... 5.8 Ghz video transmitters have a built in regulator with a wide range to easily accept 3S – 4S standard. Most 1.3 Ghz video transmitters do not have built in regulators and will need a 12V mini regulator in place on the video out pins if using a 4S flight pack. A product like this can be wired in b ...
... 5.8 Ghz video transmitters have a built in regulator with a wide range to easily accept 3S – 4S standard. Most 1.3 Ghz video transmitters do not have built in regulators and will need a 12V mini regulator in place on the video out pins if using a 4S flight pack. A product like this can be wired in b ...
Electrical Standard Engineering Inclusions
... Any special characteristic of the load such the power regeneration on de-energisation, restoration time on power up, restoration process and susceptibility to power outages. ...
... Any special characteristic of the load such the power regeneration on de-energisation, restoration time on power up, restoration process and susceptibility to power outages. ...
Tripp Lite SMART3000CRMXL SmartPro 3kVA 2880W
... Optional SNMPWEBCARD offers remote management and control of the UPS via direct network connection Additional ENVIROSENSE accessory, when used in conjunction with SNMPWEBCARD reports temperature, humidity and status of up to two directly connected contact closure sensors HID-compliant USB interface ...
... Optional SNMPWEBCARD offers remote management and control of the UPS via direct network connection Additional ENVIROSENSE accessory, when used in conjunction with SNMPWEBCARD reports temperature, humidity and status of up to two directly connected contact closure sensors HID-compliant USB interface ...
BDTIC www.BDTIC.com/infineon Wireless Components ASK Transmitter 345 MHz
... As far as patents or other rights of third parties are concerned, liability is only assumed for components, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics ...
... As far as patents or other rights of third parties are concerned, liability is only assumed for components, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics ...
Section #26 33 53 - Static Uninterruptible Power Supply
... Single phase 120V, 2 wire, plus ground, 60 Hz. Full load output at 0.8 power factor lagging 1.0 kVA. Overload capability: 125% of rated full load current at 0.8 power factor and rated voltage for 10 min; 1000% for 1 cycle. Frequency - nominal 60 Hz: ...
... Single phase 120V, 2 wire, plus ground, 60 Hz. Full load output at 0.8 power factor lagging 1.0 kVA. Overload capability: 125% of rated full load current at 0.8 power factor and rated voltage for 10 min; 1000% for 1 cycle. Frequency - nominal 60 Hz: ...
Ethernet in Automation
... Master/Slave communikation – and user organisations: Communication in the subsystems of automation equipment providers is handled in most cases with the use of master-slave communication. The bus master performs network channel arbitration and thus avoids collisions. Some systems employ dedicated IC ...
... Master/Slave communikation – and user organisations: Communication in the subsystems of automation equipment providers is handled in most cases with the use of master-slave communication. The bus master performs network channel arbitration and thus avoids collisions. Some systems employ dedicated IC ...
Electric drives in agricultural machinery
... The electrical power required has to be provided by a generator. A possible place to add a generator into a conventional power train is to mount it directly to the flywheel. A crankshaft driven generator is shown in Figure 2. On the E Premium tractor an asynchronous (AC-induction) generator has been ...
... The electrical power required has to be provided by a generator. A possible place to add a generator into a conventional power train is to mount it directly to the flywheel. A crankshaft driven generator is shown in Figure 2. On the E Premium tractor an asynchronous (AC-induction) generator has been ...
LET20030C
... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any ...
... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any ...
PAGE 818. The following new Section is added after Section... 684 NETWORK DEVICES.
... shall meet the specifications detailed in this section and shall be compliant with the IEEE 802.3 standard pinouts. Ethernet over very high speed digital subscriber line (EoVDSL) ports are permitted for use in applications where fiber optic cable is not available. EoVDSL ports must support standard ...
... shall meet the specifications detailed in this section and shall be compliant with the IEEE 802.3 standard pinouts. Ethernet over very high speed digital subscriber line (EoVDSL) ports are permitted for use in applications where fiber optic cable is not available. EoVDSL ports must support standard ...
Figure F: Power line communications from low voltage network into
... entertainment used by companies and homes worldwide. Home users, who often have more than one computer, are looking to data communication networks to share information between computers. They are also looking to networks for the ‘automation’ of their home – including applications such as security sy ...
... entertainment used by companies and homes worldwide. Home users, who often have more than one computer, are looking to data communication networks to share information between computers. They are also looking to networks for the ‘automation’ of their home – including applications such as security sy ...
1 to 8 Channel Precision Power Meter LMG500
... emitted by the appliance and their effects onto mains: • harmonics for currents up to 16A in compliance with EN61000-3-2 • harmonics for currents from 16A to 75A in compliance with EN61000-3-12 • flicker (voltage fluctuation) for currents up to 16A in compliance with EN61000-3-3 • flicker (voltage ...
... emitted by the appliance and their effects onto mains: • harmonics for currents up to 16A in compliance with EN61000-3-2 • harmonics for currents from 16A to 75A in compliance with EN61000-3-12 • flicker (voltage fluctuation) for currents up to 16A in compliance with EN61000-3-3 • flicker (voltage ...
PDF
... Fig. 1 Typical photovoltaic system Theoretically, the conventional step-up converters, such as the boost converter and fly-back converters, cannot achieve a high step-up conversion and high efficiency because of the resistance of the elements or leakage inductance [2]-[4]. The answer to this problem ...
... Fig. 1 Typical photovoltaic system Theoretically, the conventional step-up converters, such as the boost converter and fly-back converters, cannot achieve a high step-up conversion and high efficiency because of the resistance of the elements or leakage inductance [2]-[4]. The answer to this problem ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... circuits or bridgeless converters operating in CCM. Like many other energy-efficient technologies, efficient lighting will boost global prosperity. This lighting revolution is already underway. It is being driven by advances in one technology: light-emitting diodes, or LEDs. The highly efficient LED ...
... circuits or bridgeless converters operating in CCM. Like many other energy-efficient technologies, efficient lighting will boost global prosperity. This lighting revolution is already underway. It is being driven by advances in one technology: light-emitting diodes, or LEDs. The highly efficient LED ...
Power Factor
... A synchronous motor takes a leading current when overexcited and, therefore, behaves as a capacitor. An over-excited synchronous motor running on no load is known as synchronous condenser. When such a machine is connected in parallel with the supply, it takes a leading current which partly neutralis ...
... A synchronous motor takes a leading current when overexcited and, therefore, behaves as a capacitor. An over-excited synchronous motor running on no load is known as synchronous condenser. When such a machine is connected in parallel with the supply, it takes a leading current which partly neutralis ...
Power over Ethernet
Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras. Unlike standards such as Universal Serial Bus which also power devices over the data cables, PoE allows long cable lengths. Power may be carried on the same conductors as the data, or it may be carried on dedicated conductors in the same cable.There are several common techniques for transmitting power over Ethernet cabling. Two of them have been standardized by IEEE 802.3. Since only two of the four pairs are needed for 10BASE-T or 100BASE-TX, power may be transmitted on the unused conductors of a cable. In the IEEE standards, this is referred to as Alternative B. Power may also be transmitted on the data conductors by applying a common-mode voltage to each pair. Because twisted-pair Ethernet uses differential signalling, this does not interfere with data transmission. The common mode voltage is easily extracted using the center tap of the standard Ethernet pulse transformer. This is similar to the phantom power technique commonly used for powering audio microphones. In the IEEE standards, this is referred to as Alternative A.In addition to standardizing existing practice for spare-pair and common-mode data pair power transmission, the IEEE PoE standards provide for signalling between the power sourcing equipment (PSE) and powered device (PD). This signaling allows the presence of a conformant device to be detected by the power source, and allows the device and source to negotiate the amount of power required or available. Up to a 25.5 watts is available for a device.