Part 1: Harmonics
... • Additional acoustic noise from motors and other apparatus, reducing the efficiency of motors. • Telephone interference. • High harmonic amplitudes may not only cause malfunctions, additional losses and overheating, but also overload the power distribution network and overheat the neutral conductor ...
... • Additional acoustic noise from motors and other apparatus, reducing the efficiency of motors. • Telephone interference. • High harmonic amplitudes may not only cause malfunctions, additional losses and overheating, but also overload the power distribution network and overheat the neutral conductor ...
Vocia® VO-4e Operation Manual
... of minimum ‘on battery’ running times both for standby and maximum power conditions. If used, dual 24V redundant power supplies must each independently meet the total power requirements of the unit. The pluggable screw terminal connectors provided will accommodate wire sizes from 12-18 AWG. External ...
... of minimum ‘on battery’ running times both for standby and maximum power conditions. If used, dual 24V redundant power supplies must each independently meet the total power requirements of the unit. The pluggable screw terminal connectors provided will accommodate wire sizes from 12-18 AWG. External ...
PDF
... The entire control (for both d -axis and q axis controllers) is implemented as per the strategy of Fig 7. in real-time . Thus, these controllers generate references which are converted back to variables by help of unit vectors (inverse transformation). The gate pulses of the converter are gene ...
... The entire control (for both d -axis and q axis controllers) is implemented as per the strategy of Fig 7. in real-time . Thus, these controllers generate references which are converted back to variables by help of unit vectors (inverse transformation). The gate pulses of the converter are gene ...
TECH TIPS
... Alternators that are being installed on inboard gasoline engines must be certified to meet Coast Guard requirements for ignition protection. In order for the alternator to be certified, it must pass the testing procedure, Marine SAE J1171, laid-out by the Society of Automotive Engineers (SAE). Brush ...
... Alternators that are being installed on inboard gasoline engines must be certified to meet Coast Guard requirements for ignition protection. In order for the alternator to be certified, it must pass the testing procedure, Marine SAE J1171, laid-out by the Society of Automotive Engineers (SAE). Brush ...
S280-77-6
... and each lead with a GE V150LA20A metal oxide varistor (MOV), or equivalent, at the remote end. Attach MOV’s between the leads and ground. Failure to properly shield and protect leads can result in equipment damage and/or unintentional operation. G117.1 The customer connections (Figure 4) are locate ...
... and each lead with a GE V150LA20A metal oxide varistor (MOV), or equivalent, at the remote end. Attach MOV’s between the leads and ground. Failure to properly shield and protect leads can result in equipment damage and/or unintentional operation. G117.1 The customer connections (Figure 4) are locate ...
New Products launched 2016
... Up to 1600VDC/60sec isolation Up to 85% efficiency Continuous short circuit protection Over Voltage and Over Load protection, Input Under Voltage lockout Remote On/Off and output adjustment for the single outputs ‐40 to 85°C with derating, No load power consumption ≤0.12W For industrial control, aut ...
... Up to 1600VDC/60sec isolation Up to 85% efficiency Continuous short circuit protection Over Voltage and Over Load protection, Input Under Voltage lockout Remote On/Off and output adjustment for the single outputs ‐40 to 85°C with derating, No load power consumption ≤0.12W For industrial control, aut ...
Weighing Applications for Hazardous Areas
... unloaded container. Net weight is obtained by subtracting one from the other. In today’s processing plants, electronic load cells are preferred in almost all applications for final batching recipes. The selected load cell should always be suitable for the operating environment in terms of its corros ...
... unloaded container. Net weight is obtained by subtracting one from the other. In today’s processing plants, electronic load cells are preferred in almost all applications for final batching recipes. The selected load cell should always be suitable for the operating environment in terms of its corros ...
Applying Short Circuit Current and Series
... than in the case of a fully-rated system. The smaller frame size branch circuit breaker will have a different characteristic time-current curve and may result in better overall coordination. In both systems, the only time the two circuit breakers trip at the same time is under high fault conditions. ...
... than in the case of a fully-rated system. The smaller frame size branch circuit breaker will have a different characteristic time-current curve and may result in better overall coordination. In both systems, the only time the two circuit breakers trip at the same time is under high fault conditions. ...
Project Proposal on DCDC converters for the 42V Automotive
... In order to handle high current at low voltages, SR is needed Low Rdson MOSFET greatly reduces losses at the output rectifier ...
... In order to handle high current at low voltages, SR is needed Low Rdson MOSFET greatly reduces losses at the output rectifier ...
Protecting PV systems. Technical info
... Depending on the desired PV system capacity, there may be several PV strings connected in parallel to achieve higher amperage and subsequently more power. Systems that have less than three PV strings will not generate enough fault current (short-circuit) to damage the PV modules, conductors or downs ...
... Depending on the desired PV system capacity, there may be several PV strings connected in parallel to achieve higher amperage and subsequently more power. Systems that have less than three PV strings will not generate enough fault current (short-circuit) to damage the PV modules, conductors or downs ...
here
... damage to the drive. All warranty and disclaimer information is located in the full product manual on the CD and should be referenced for more information. WARNING! The IM483 Driver components are sensitive to Electrostatic Discharge (ESD). All handling should be done at an ESD protected workstation ...
... damage to the drive. All warranty and disclaimer information is located in the full product manual on the CD and should be referenced for more information. WARNING! The IM483 Driver components are sensitive to Electrostatic Discharge (ESD). All handling should be done at an ESD protected workstation ...
VL Molded Case Circuit Breakers
... Short Time Pick-Up (lsd) This function controls the level of fault current the breaker will carry for a short time without tripping, thus allowing downstream devices to clear short circuits ahead of up-stream protection. It may be defeated (turned-off) on Model 576 trip units. Short Time Delay (tsd) ...
... Short Time Pick-Up (lsd) This function controls the level of fault current the breaker will carry for a short time without tripping, thus allowing downstream devices to clear short circuits ahead of up-stream protection. It may be defeated (turned-off) on Model 576 trip units. Short Time Delay (tsd) ...
Research Needs for Circuit Design
... techniques will have to be developed for the leaky low voltage regime. Since velocity saturation occurs at lower drain voltages , the transconductance per unit current (g m/Idsat) will be low. However, this may be partly offset by increased Idsat per unit area and improving fT. In addition, it shoul ...
... techniques will have to be developed for the leaky low voltage regime. Since velocity saturation occurs at lower drain voltages , the transconductance per unit current (g m/Idsat) will be low. However, this may be partly offset by increased Idsat per unit area and improving fT. In addition, it shoul ...
Verify Performance and Safety of Arc-Flash Detection Systems
... The tests were set up using a state sequencer program. Prefault, fault, and post-fault states were used. The flash was synchronized so that it was applied with the current at the start of the fault state. A current value above the pickup level was used for the tests that evaluated current supervisio ...
... The tests were set up using a state sequencer program. Prefault, fault, and post-fault states were used. The flash was synchronized so that it was applied with the current at the start of the fault state. A current value above the pickup level was used for the tests that evaluated current supervisio ...
electro_magnetic_induction
... An alternating source of emf with peak value 200V is applied to the primary winding of a transformer. If the number of turns in the primary and secondary windings are 500 and 25 respectively, calculate the peak value of the voltage induced in the secondary winding. What is the value of the secondar ...
... An alternating source of emf with peak value 200V is applied to the primary winding of a transformer. If the number of turns in the primary and secondary windings are 500 and 25 respectively, calculate the peak value of the voltage induced in the secondary winding. What is the value of the secondar ...
SK-Zone Interface Module
... modules will be installed in an existing operational system, inform the operator and local authority that the system will be temporarily out of service. Disconnect power to the control panel before installing the modules. ...
... modules will be installed in an existing operational system, inform the operator and local authority that the system will be temporarily out of service. Disconnect power to the control panel before installing the modules. ...
Manuals Basic Electrical Engineering BE-104
... in it. The e.m.f circulates eddy currents which results in eddy current losses in it. To reduce these losses armature core is laminated , in other word we can say that about 0.3 to 0.5 mm thick stampings are used for its construction. Each lamination or stamping is insulated from the outer by varnis ...
... in it. The e.m.f circulates eddy currents which results in eddy current losses in it. To reduce these losses armature core is laminated , in other word we can say that about 0.3 to 0.5 mm thick stampings are used for its construction. Each lamination or stamping is insulated from the outer by varnis ...
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.