PowerFlex 700 Adjustable Frequency AC Drive – Frames 0…6
... • +DC and -DC terminals of the Power Terminal Block • +DC terminal of the Power Terminal Block and the chassis • -DC terminal of the Power Terminal Block and the chassis The voltage must be zero for all three measurements. ATTENTION: Risk of injury or equipment damage exists. DPI or SCANport host pr ...
... • +DC and -DC terminals of the Power Terminal Block • +DC terminal of the Power Terminal Block and the chassis • -DC terminal of the Power Terminal Block and the chassis The voltage must be zero for all three measurements. ATTENTION: Risk of injury or equipment damage exists. DPI or SCANport host pr ...
AS/ACIF S009:2006 - Communications Alliance
... This Standard includes requirements intended to ensure the safety of customers, cabling providers, carrier staff, and the general public. However, cabling providers are reminded that metallic telecommunications conductors, earth connections, metallic parts, etc. may, at any given time, be at a volta ...
... This Standard includes requirements intended to ensure the safety of customers, cabling providers, carrier staff, and the general public. However, cabling providers are reminded that metallic telecommunications conductors, earth connections, metallic parts, etc. may, at any given time, be at a volta ...
Generator Protection
... In principle the larger the losses in the Inner Circuit the larger the size of the Outer Circuit (coolers or radiators) There is nevertheless a limit either due to the size of the coolers or to the impossibility of cooling a certain spot (hot-spot) in the ...
... In principle the larger the losses in the Inner Circuit the larger the size of the Outer Circuit (coolers or radiators) There is nevertheless a limit either due to the size of the coolers or to the impossibility of cooling a certain spot (hot-spot) in the ...
Tech Brief 1 MicroLAN Design Guide
... Normally, the solution would be to terminate the ends of the cable in its characteristic impedance with fixed resistors. These resistors would then absorb the energy that otherwise would be reflected by the impedance mismatch and cause communications problems. Unfortunately, the recommended cabling ...
... Normally, the solution would be to terminate the ends of the cable in its characteristic impedance with fixed resistors. These resistors would then absorb the energy that otherwise would be reflected by the impedance mismatch and cause communications problems. Unfortunately, the recommended cabling ...
IH3214741491
... of zero-sequence voltages. Either a conventional two level converter (Graetz bridge) or a three level converter is used. 2.1.2. Boost or Injection Transformers: Three single phase transformers are connected in series with the distribution feeder to couple the VSC (at the lower voltage level) to the ...
... of zero-sequence voltages. Either a conventional two level converter (Graetz bridge) or a three level converter is used. 2.1.2. Boost or Injection Transformers: Three single phase transformers are connected in series with the distribution feeder to couple the VSC (at the lower voltage level) to the ...
Installation, Wiring, and Specifications
... **Equipment will operate down to 5% relative humidity. However, static electricity problems occur much more frequently at low humidity levels (below 30%). Make sure you take adequate precautions when you touch the equipment. Consider using ground straps, anti-static floor coverings, etc. if you use ...
... **Equipment will operate down to 5% relative humidity. However, static electricity problems occur much more frequently at low humidity levels (below 30%). Make sure you take adequate precautions when you touch the equipment. Consider using ground straps, anti-static floor coverings, etc. if you use ...
Chapter 3 EEG electrodes
... 3.8) Another classification of EEG electrodes By and large, most clinical EEGs currently are done using surface electrodes. The advantage of surface electrodes over needle electrode is obvious, in terms of both convenience and comfort for the. patient. as well as relative freedom from infection. Les ...
... 3.8) Another classification of EEG electrodes By and large, most clinical EEGs currently are done using surface electrodes. The advantage of surface electrodes over needle electrode is obvious, in terms of both convenience and comfort for the. patient. as well as relative freedom from infection. Les ...
Section 1 TVS Diode Definition and General Electronics Applications
... TVS Diode Definition and General Electronics Applications Typical Discrete TVS Diode Packages for Circuit Protection ...
... TVS Diode Definition and General Electronics Applications Typical Discrete TVS Diode Packages for Circuit Protection ...
Hardware and Installation Manual
... Photovoltaic systems have special characteristics that can represent special hazards: ...
... Photovoltaic systems have special characteristics that can represent special hazards: ...
AFDD * Arcing Fault Protection
... • The conventional overcurrent protection devices are effective only when the current / time characteristic of the fault lies above the tripping characteristic of the protection device. • The electrical designer must make sure that the tripping characteristic of the protection device is suitable for ...
... • The conventional overcurrent protection devices are effective only when the current / time characteristic of the fault lies above the tripping characteristic of the protection device. • The electrical designer must make sure that the tripping characteristic of the protection device is suitable for ...
PP.AFD.07
... • Harmonics reduce PF for both but can be improved using DC Link Reactors, AC Line Reactors, etc ...
... • Harmonics reduce PF for both but can be improved using DC Link Reactors, AC Line Reactors, etc ...
Powerpact 4 panelboards Contents
... breaker connections are tightened to the correct torque. The system comprises a tightening bolt head which shears off when the correct torque is reached. Facilities are provided to enable the breaker to be repositioned at a later time if so required. The breaker range comprises single pole, single p ...
... breaker connections are tightened to the correct torque. The system comprises a tightening bolt head which shears off when the correct torque is reached. Facilities are provided to enable the breaker to be repositioned at a later time if so required. The breaker range comprises single pole, single p ...
Stratus® ftServer® 2700, 4700, and 6400 Systems: Site
... – % or $ indicates you are logged in to a standard user account and are subject to certain access limitations. The prompt displayed on the screen depends on your shell environment, for example, csh (%) or bash ($). – # indicates you are logged in to the system administrator account and have superuse ...
... – % or $ indicates you are logged in to a standard user account and are subject to certain access limitations. The prompt displayed on the screen depends on your shell environment, for example, csh (%) or bash ($). – # indicates you are logged in to the system administrator account and have superuse ...
solid-state devices and circuits
... attribute of semiconductors that makes possible today’s highly complex electronic equipment utilizing millions of transistors. Improved Performance. While transistors have replaced vacuum tubes in most applications, there are a few application areas in which tubes still dominate. Primarily, these ar ...
... attribute of semiconductors that makes possible today’s highly complex electronic equipment utilizing millions of transistors. Improved Performance. While transistors have replaced vacuum tubes in most applications, there are a few application areas in which tubes still dominate. Primarily, these ar ...
Out-of-Step Protection for Generators
... General Electric Company Schenectady, New York During any stage of development of a power system, there will be some combination of operating conditions, faults or other disturbances which may cause the loss of synchronism between areas within a power system or between interconnected systems. If suc ...
... General Electric Company Schenectady, New York During any stage of development of a power system, there will be some combination of operating conditions, faults or other disturbances which may cause the loss of synchronism between areas within a power system or between interconnected systems. If suc ...
Modeling and Control of Electrical Drives
... previously used to specify the configuration, as they were for ASICs, but this is increasingly rare). FPGAs can be used to implement any logical function that an ASIC could perform. The ability to update the functionality after shipping, partial re-configuration of the portion of the design and the ...
... previously used to specify the configuration, as they were for ASICs, but this is increasingly rare). FPGAs can be used to implement any logical function that an ASIC could perform. The ability to update the functionality after shipping, partial re-configuration of the portion of the design and the ...
Folie 1 - RWTH Aachen University
... • Standard grounding scheme Module ground potentials are all the same Common ground reference for bias, analogue and digital voltage for whole substructure (rod, petal) Bias voltage ground reference is the same for all modules Note: in Serial Powering (SP) bias is referenced to “local ground“, ...
... • Standard grounding scheme Module ground potentials are all the same Common ground reference for bias, analogue and digital voltage for whole substructure (rod, petal) Bias voltage ground reference is the same for all modules Note: in Serial Powering (SP) bias is referenced to “local ground“, ...
Folie 1 - RWTH Aachen University
... • Standard grounding scheme Module ground potentials are all the same Common ground reference for bias, analogue and digital voltage for whole substructure (rod, petal) Bias voltage ground reference is the same for all modules Note: in Serial Powering (SP) bias is referenced to “local ground“, ...
... • Standard grounding scheme Module ground potentials are all the same Common ground reference for bias, analogue and digital voltage for whole substructure (rod, petal) Bias voltage ground reference is the same for all modules Note: in Serial Powering (SP) bias is referenced to “local ground“, ...
Data Assessment for Electrical Surge Protection Devices
... protective devices, or SPDs. A surge of duration longer than a few milliseconds is referred to as a swell or temporary overvoltage (TOV) and requires a different type of protection design; SPDs can fail if exposed to long duration TOVs. Surge Effects ...
... protective devices, or SPDs. A surge of duration longer than a few milliseconds is referred to as a swell or temporary overvoltage (TOV) and requires a different type of protection design; SPDs can fail if exposed to long duration TOVs. Surge Effects ...
S280-104-1
... The control can be equipped with either an 8 Amp-Hour or 13 Amp-Hour 24 VDC lead acid battery for operation upon loss of AC power. The control maintains full operation from the battery for a period of time dependent upon the battery ...
... The control can be equipped with either an 8 Amp-Hour or 13 Amp-Hour 24 VDC lead acid battery for operation upon loss of AC power. The control maintains full operation from the battery for a period of time dependent upon the battery ...
3TL Vacuum Contactors Selection and Ordering Data
... right of the motor starting current (point A). • The rated current of the HV HRC fuse-link must exceed the normal current of the motor. • The current corresponding to the intersection B of the HV HRC fuse-link characteristic and the characteristic of the overcurrent-time protection must be higher th ...
... right of the motor starting current (point A). • The rated current of the HV HRC fuse-link must exceed the normal current of the motor. • The current corresponding to the intersection B of the HV HRC fuse-link characteristic and the characteristic of the overcurrent-time protection must be higher th ...
Ground (electricity)
In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the Earth.Electrical circuits may be connected to ground (earth) for several reasons. In mains powered equipment, exposed metal parts are connected to ground to prevent user contact with dangerous voltage if electrical insulation fails. Connections to ground limit the build-up of static electricity when handling flammable products or electrostatic-sensitive devices. In some telegraph and power transmission circuits, the earth itself can be used as one conductor of the circuit, saving the cost of installing a separate return conductor (see single-wire earth return).For measurement purposes, the Earth serves as a (reasonably) constant potential reference against which other potentials can be measured. An electrical ground system should have an appropriate current-carrying capability to serve as an adequate zero-voltage reference level. In electronic circuit theory, a ""ground"" is usually idealized as an infinite source or sink for charge, which can absorb an unlimited amount of current without changing its potential. Where a real ground connection has a significant resistance, the approximation of zero potential is no longer valid. Stray voltages or earth potential rise effects will occur, which may create noise in signals or if large enough will produce an electric shock hazard.The use of the term ground (or earth) is so common in electrical and electronics applications that circuits in portable electronic devices such as cell phones and media players as well as circuits in vehicles may be spoken of as having a ""ground"" connection without any actual connection to the Earth, despite ""common"" being a more appropriate term for such a connection. This is usually a large conductor attached to one side of the power supply (such as the ""ground plane"" on a printed circuit board) which serves as the common return path for current from many different components in the circuit.