Gas-insulated switchgear type series 8DN8
... highly successful product concept. Since its introduction in 1968, Siemens has installed more than 26,000 bays worldwide. A total of well over 286,000 years of bay operation have since been recorded. ...
... highly successful product concept. Since its introduction in 1968, Siemens has installed more than 26,000 bays worldwide. A total of well over 286,000 years of bay operation have since been recorded. ...
B280-00032
... Metering functions shall include demand and instantaneous current on a per phase basis, instantaneous voltage and power factor on a per phase basis, and power (real, reactive, apparent) on a per phase or total basis. Harmonics shall be provided for on a per phase basis. Symmetrical components for bo ...
... Metering functions shall include demand and instantaneous current on a per phase basis, instantaneous voltage and power factor on a per phase basis, and power (real, reactive, apparent) on a per phase or total basis. Harmonics shall be provided for on a per phase basis. Symmetrical components for bo ...
Application Note Evaluation Board 3kW dual phase LLC
... The combined trends of a continuous reduction of volume and size of the power converters and an increase in required output power represent a serious challenge in modern switch mode power supply (SMPS) designs. When addressing the high power density requirement, even in a SMPS with high peak efficie ...
... The combined trends of a continuous reduction of volume and size of the power converters and an increase in required output power represent a serious challenge in modern switch mode power supply (SMPS) designs. When addressing the high power density requirement, even in a SMPS with high peak efficie ...
SEMI STEP: Introduction to SEMI S2-0706
... main overcurrent protective device, to short circuit current rating of the equipment (machine) industrial control panel. • In an effort to harmonize with changes in these standards, the nameplate criteria of SEMI S2 and SEMI S22 will be updated in July to include the short circuit current rating of ...
... main overcurrent protective device, to short circuit current rating of the equipment (machine) industrial control panel. • In an effort to harmonize with changes in these standards, the nameplate criteria of SEMI S2 and SEMI S22 will be updated in July to include the short circuit current rating of ...
Aalborg Universitet Active harmonic filtering using current-controlled, grid-connected DG units with
... number of active and passive filtering methods have been developed [3]. However, installing additionally filters is not very favorable due to cost concerns. Alternatively, distribution system power quality enhancement using flexible control of grid-connected DG units is becoming an interesting topic ...
... number of active and passive filtering methods have been developed [3]. However, installing additionally filters is not very favorable due to cost concerns. Alternatively, distribution system power quality enhancement using flexible control of grid-connected DG units is becoming an interesting topic ...
STATIC SYNCHRONOUS GENERATOR WITH SLIDING DROOP
... machine. Thus, adequate frequency and voltage control is achieved in a microgrid involving distributed generation (DG), without the need of a communication-system. In grid-connected microgrids, DG units mainly perform active-power supply and voltage regulation, whereas the system frequency is mainly ...
... machine. Thus, adequate frequency and voltage control is achieved in a microgrid involving distributed generation (DG), without the need of a communication-system. In grid-connected microgrids, DG units mainly perform active-power supply and voltage regulation, whereas the system frequency is mainly ...
UL 508 A Short Circuit Current Rating
... for third-party compliance testing to the short circuit current requirements of the UL 508A Standard for Industrial Control Panels. If, for example, Underwriters Laboratories was utilized as the third-party test laboratory, UL Listing to UL 508A and authorization to apply the UL Listed mark would be ...
... for third-party compliance testing to the short circuit current requirements of the UL 508A Standard for Industrial Control Panels. If, for example, Underwriters Laboratories was utilized as the third-party test laboratory, UL Listing to UL 508A and authorization to apply the UL Listed mark would be ...
aftermarket master.qxd - Rite-Hite
... The drive contains high voltage capacitors which take time to discharge after removal of mains supply. Before working on drive, ensure isolation of mains supply from line inputs [R, S, T (L1, L2, L3)]. wait three minutes for capacitors to discharge to safe voltage levels. Failure to do so may result ...
... The drive contains high voltage capacitors which take time to discharge after removal of mains supply. Before working on drive, ensure isolation of mains supply from line inputs [R, S, T (L1, L2, L3)]. wait three minutes for capacitors to discharge to safe voltage levels. Failure to do so may result ...
ABB industrial drives ACS880, multidrive modules Catalog
... cabinets. Installing and transporting them is easy, as they come equipped with wheels. Connecting the modules to the motor cables inside the cabinet is quick as the modules come with quick connectors as standard. The modules can also be quickly pulled out from a cabinet without any need for disconne ...
... cabinets. Installing and transporting them is easy, as they come equipped with wheels. Connecting the modules to the motor cables inside the cabinet is quick as the modules come with quick connectors as standard. The modules can also be quickly pulled out from a cabinet without any need for disconne ...
1 - Introduction to Dimming Concepts
... channel numbers. If there is a need for more than 512 channels in a DMX system, additional DMX universes may be added up to the capacity of the Master device. Commands are constantly refreshed. Commands include the device address and level (0-255) that the device should assume. When used with lighti ...
... channel numbers. If there is a need for more than 512 channels in a DMX system, additional DMX universes may be added up to the capacity of the Master device. Commands are constantly refreshed. Commands include the device address and level (0-255) that the device should assume. When used with lighti ...
Resilient control systems
In our modern society, computerized or digital control systems have been used to reliably automate many of the industrial operations that we take for granted, from the power plant to the automobiles we drive. However, the complexity of these systems and how the designers integrate them, the roles and responsibilities of the humans that interact with the systems, and the cyber security of these highly networked systems has led to a new paradigm in research philosophy for next generation control systems. Resilient Control Systems consider all of these elements and those disciplines that contribute to a more effective design, such as cognitive psychology, computer science, and control engineering to develop interdisciplinary solutions. These solutions consider such things such as how to tailor the control system operating displays to best enable the user to make an accurate and reproducible response, how to design in cyber security protections such that the system defends itself from attack by changing its behaviors, and how to better integrate widely distributed computer control systems to prevent cascading failures that result in disruptions to critical industrial operations. In the context of cyber-physical systems, resilient control systems are an aspect that focuses on the unique interdependencies of a control system, as compared to information technology computer systems and networks, due to its importance in operating our critical industrial operations.