System reference 25/06/2006,01:00 8.44 Mb
... Specifications and design are subject to change without notice for the purpose of improvement. The content of this documentation is for information only. The information presented in this documentation does not form part of any quotation or contract. The information is believed to be accurate and re ...
... Specifications and design are subject to change without notice for the purpose of improvement. The content of this documentation is for information only. The information presented in this documentation does not form part of any quotation or contract. The information is believed to be accurate and re ...
Aalborg Universitet
... improve the conversion efficiency, many efforts have been made on enhancing the performance of each single converter [11]–[18]. Especially, it is recognized that converter efficiency is relatively lower in light load conditions where more improvement are expected [15]–[17], [19]. Apart from improvin ...
... improve the conversion efficiency, many efforts have been made on enhancing the performance of each single converter [11]–[18]. Especially, it is recognized that converter efficiency is relatively lower in light load conditions where more improvement are expected [15]–[17], [19]. Apart from improvin ...
Physical Layer Pt1 - Faculty of Computer Science and Information
... The colored pairs identify the wires for proper connection at the terminals. There are several categories of UTP cable. Each category indicates a level of bandwidth performance as defined by the IEEE. Category 3 (Cat 3) to Category 5 (Cat 5), 100-megabit transmissions. ...
... The colored pairs identify the wires for proper connection at the terminals. There are several categories of UTP cable. Each category indicates a level of bandwidth performance as defined by the IEEE. Category 3 (Cat 3) to Category 5 (Cat 5), 100-megabit transmissions. ...
DC-AC Inverter - Samlex America
... After the inverter is switched on, it takes a finite time for it to become ready to deliver full power. Always switch on the load(s) after a few seconds of switching on the inverter. Avoid switching on the inverter with the load already switched on. This may prematurely trigger the overload protecti ...
... After the inverter is switched on, it takes a finite time for it to become ready to deliver full power. Always switch on the load(s) after a few seconds of switching on the inverter. Avoid switching on the inverter with the load already switched on. This may prematurely trigger the overload protecti ...
AC Sources - Operating 3.8.1 3.8 ELECTRICAL POWER SYSTEMS
... b. Load shedding from emergency buses; and c. Each EDG auto-starts from standby condition; and: 1. Energizes permanently connected loads in ≤ 15 seconds; 2. Energizes auto-connected emergency loads through the Protection System; 3. Achieves steady state voltage ≥ 6555 V and ≤ 7260 V; 4. Achieves ste ...
... b. Load shedding from emergency buses; and c. Each EDG auto-starts from standby condition; and: 1. Energizes permanently connected loads in ≤ 15 seconds; 2. Energizes auto-connected emergency loads through the Protection System; 3. Achieves steady state voltage ≥ 6555 V and ≤ 7260 V; 4. Achieves ste ...
the catalogue now (pdf 5.6Mb)
... Modular system architecture, simplifying installation and upgrading The entire range of core units is optimised for dedicated applications, sharing: bb Same dimensions and footprint, 375 mm width in particular bb Same auxiliaries such as electrical operation devices, accessories and options bb Same ...
... Modular system architecture, simplifying installation and upgrading The entire range of core units is optimised for dedicated applications, sharing: bb Same dimensions and footprint, 375 mm width in particular bb Same auxiliaries such as electrical operation devices, accessories and options bb Same ...
Lenovo Flex System Higher Voltage DC Solutions
... Clients who benefit most from HVDC power are those clients who operate large data centers or who are looking to maximize energy efficiency on a broad scale. HVDC can be especially attractive to customers who want to expand their current data center footprint or build new (greenfield) data center ins ...
... Clients who benefit most from HVDC power are those clients who operate large data centers or who are looking to maximize energy efficiency on a broad scale. HVDC can be especially attractive to customers who want to expand their current data center footprint or build new (greenfield) data center ins ...
- VS Technologies
... of line currents and they also involve large size and heavy weight of passive elements. With the development of fast acting selfcommutating switches, pulse width modulated (PWM) voltage source inverter (VSI)-based static reactive power compensators (STATCOMs) [12]–[18] have been evolved. These STATC ...
... of line currents and they also involve large size and heavy weight of passive elements. With the development of fast acting selfcommutating switches, pulse width modulated (PWM) voltage source inverter (VSI)-based static reactive power compensators (STATCOMs) [12]–[18] have been evolved. These STATC ...
Workware Technical Manual
... your existing network infrastructure, taking advantage of your existing firewalls and other security features. Additionally, each session can be protected using a fixed password, setup for moderator controlled sessions, or a unique 4-digit login screen key. Wired cable back-up provides additional se ...
... your existing network infrastructure, taking advantage of your existing firewalls and other security features. Additionally, each session can be protected using a fixed password, setup for moderator controlled sessions, or a unique 4-digit login screen key. Wired cable back-up provides additional se ...
Chapter 5 - Ethernet
... The two commonly used methods are: CSMA/Collision Detection • The device monitors the media for the presence of a data signal • If a data signal is absent, indicating that the media is free, the device transmits the data • If signals are then detected that show another device was transmitting at the ...
... The two commonly used methods are: CSMA/Collision Detection • The device monitors the media for the presence of a data signal • If a data signal is absent, indicating that the media is free, the device transmits the data • If signals are then detected that show another device was transmitting at the ...
AC Sources - Operating 3.8.1 3.8 ELECTRICAL POWER SYSTEMS
... b. Load shedding from emergency buses; and c. Each EDG auto-starts from standby condition; and: 1. Energizes permanently connected loads in ≤ 15 seconds; 2. Energizes auto-connected emergency loads through the Protection System; 3. Achieves steady state voltage ≥ 6555 V and ≤ 7260 V; 4. Achieves ste ...
... b. Load shedding from emergency buses; and c. Each EDG auto-starts from standby condition; and: 1. Energizes permanently connected loads in ≤ 15 seconds; 2. Energizes auto-connected emergency loads through the Protection System; 3. Achieves steady state voltage ≥ 6555 V and ≤ 7260 V; 4. Achieves ste ...
AP2101/AP2111 Description Pin Assignments
... VIN has been applied. The AP2101/AP2111 senses the short circuit and immediately clamps output current to a certain safe level namely ILIMIT. In the second condition, an output short or an overload occurs while the device is enabled. At the instance the overload occurs, higher current may flow for a ...
... VIN has been applied. The AP2101/AP2111 senses the short circuit and immediately clamps output current to a certain safe level namely ILIMIT. In the second condition, an output short or an overload occurs while the device is enabled. At the instance the overload occurs, higher current may flow for a ...
LM5023 AC-DC Quasi-Resonant Current Mode
... The LM5023 is a quasi-resonant PWM controller which contains all of the features needed to implement a highly efficient off-line power supply. The LM5023 uses the transformer auxiliary winding for demagnetization detection to ensure quasi-resonant operation (valley-switching) to minimize switching l ...
... The LM5023 is a quasi-resonant PWM controller which contains all of the features needed to implement a highly efficient off-line power supply. The LM5023 uses the transformer auxiliary winding for demagnetization detection to ensure quasi-resonant operation (valley-switching) to minimize switching l ...
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.