Institutionen för systemteknik
... A measurement setup is done in the bus, described in Chapter 3, measuring important voltage levels during different circumstances, to capture the dynamics of the system. The signal to be used as a feedback signal is investigated. It is evaluated if the performance of the control system is improved ...
... A measurement setup is done in the bus, described in Chapter 3, measuring important voltage levels during different circumstances, to capture the dynamics of the system. The signal to be used as a feedback signal is investigated. It is evaluated if the performance of the control system is improved ...
a users guide to arc resistant low voltage
... The time-current curves of upstream protective devices are a major factor in determining how long an arcfault will last. An effort should be made to determine the actual settings rather than relying on standard values, as these may cause incident energy to vary greatly. Another consideration when an ...
... The time-current curves of upstream protective devices are a major factor in determining how long an arcfault will last. An effort should be made to determine the actual settings rather than relying on standard values, as these may cause incident energy to vary greatly. Another consideration when an ...
User Manual
... power stored in the DUT to self-discharge before the polarity is reversed. Note: The unit will power up with the Neutral and Ground Closed, in Forward Polarity and with the Hot Open. It is recommended that the unit be returned to this condition when plugging and unplugging the DUT. Patient Lead Cont ...
... power stored in the DUT to self-discharge before the polarity is reversed. Note: The unit will power up with the Neutral and Ground Closed, in Forward Polarity and with the Hot Open. It is recommended that the unit be returned to this condition when plugging and unplugging the DUT. Patient Lead Cont ...
Document
... Chapter 4 The Simple Circuit and Ohm’s Law Conductors • Switches • Switch Characteristics • Loads • Overcurrent • Overcurrent Protection Devices • Voltage and Current Measurements • DC Voltage Measurements • DC Current Measurements • Ohm’s Law • Determining ...
... Chapter 4 The Simple Circuit and Ohm’s Law Conductors • Switches • Switch Characteristics • Loads • Overcurrent • Overcurrent Protection Devices • Voltage and Current Measurements • DC Voltage Measurements • DC Current Measurements • Ohm’s Law • Determining ...
Instruction Manual - TECO
... 3. Lifting means, when supplied, are intended for lifting the motor only. When two lifting devices are supplied with the motor a dual chain must be used. 4. Suitable protection must be used when working near machinery with high noise levels. 5. Safeguard or protective devices must not be by-passed o ...
... 3. Lifting means, when supplied, are intended for lifting the motor only. When two lifting devices are supplied with the motor a dual chain must be used. 4. Suitable protection must be used when working near machinery with high noise levels. 5. Safeguard or protective devices must not be by-passed o ...
graduation report
... In most MV networks, the HV/MV transformer is connected in either wye-wye or delta-wye, by which the secondary neutral point is connected to ground through an impedance. This has two major advantages: Firstly, earth-fault currents will be much higher, making relay coordination easier and secondly, i ...
... In most MV networks, the HV/MV transformer is connected in either wye-wye or delta-wye, by which the secondary neutral point is connected to ground through an impedance. This has two major advantages: Firstly, earth-fault currents will be much higher, making relay coordination easier and secondly, i ...
cathode-mixing.pdf
... Still what is occurring is the difference between the grid & cathode voltages are what is being amplified. Neither electrode necessarily has to be held constant for reference, simultaneous signals could be applied and the plate output would represent the differences in those signals only. Signals co ...
... Still what is occurring is the difference between the grid & cathode voltages are what is being amplified. Neither electrode necessarily has to be held constant for reference, simultaneous signals could be applied and the plate output would represent the differences in those signals only. Signals co ...
Neutral Switching Transients
... It is reasonable to ask about the likelihood of a ground fault occurring during the short time that the neutral contacts are overlapped. Certainly it is as likely as any other time, but perhaps it is slightly more likely during the period of the transition for the following reasons. As those who per ...
... It is reasonable to ask about the likelihood of a ground fault occurring during the short time that the neutral contacts are overlapped. Certainly it is as likely as any other time, but perhaps it is slightly more likely during the period of the transition for the following reasons. As those who per ...
contacting bare silicon solar cells with advanced cell metallisation
... cells at Standard Test Conditions (STC) [1] is important for production line reference cells as well as for cell development evaluation in order to maintain international comparability. However, the exact way how to contact a wafer-based solar cell for a standard measurement is not covered by one of ...
... cells at Standard Test Conditions (STC) [1] is important for production line reference cells as well as for cell development evaluation in order to maintain international comparability. However, the exact way how to contact a wafer-based solar cell for a standard measurement is not covered by one of ...
nd shoes • Battery Chargers • DC Converters • Inverters • Power
... The circuitry of these Inverter/Chargers incorporates a technology which is field-proven and was carefully refined for years in both harsh industrial and sensitive utility applications. Now this rugged design is offered for marine applications where reliability and performance are paramount, and low ...
... The circuitry of these Inverter/Chargers incorporates a technology which is field-proven and was carefully refined for years in both harsh industrial and sensitive utility applications. Now this rugged design is offered for marine applications where reliability and performance are paramount, and low ...
Chapter 5(cont)_NOISE
... It may be seen that the first term in the denominator increases with increasing M whereas the second term decreases. For low M the combined thermal and amplifier noise term dominates and the total noise power is virtually unaffected when the signal level is increased, giving an improved SNR. However ...
... It may be seen that the first term in the denominator increases with increasing M whereas the second term decreases. For low M the combined thermal and amplifier noise term dominates and the total noise power is virtually unaffected when the signal level is increased, giving an improved SNR. However ...
AD9865
... Integrated 23 dBm line driver with 19.5 dB gain control 10-bit, 80 MSPS A/D converter −12 dB to +48 dB low noise RxPGA (< 3.0 nV/rtHz) Third order, programmable low-pass filter Flexible digital data path interface Half- and full-duplex operation Backward-compatible with AD9975 and AD9875 Various pow ...
... Integrated 23 dBm line driver with 19.5 dB gain control 10-bit, 80 MSPS A/D converter −12 dB to +48 dB low noise RxPGA (< 3.0 nV/rtHz) Third order, programmable low-pass filter Flexible digital data path interface Half- and full-duplex operation Backward-compatible with AD9975 and AD9875 Various pow ...
Pdf - Text of NPTEL IIT Video Lectures
... iron alloy ferrite, primary coil is excited by a sinusoidal voltage of amplitude 1 volt to 15 volts and frequency 50 hurts to 20 hertz. The whole sensor is enclosed and shielded. So, that no field extends outside it and hence can all influence by outside fields. Look at this two circuit diagrams, in ...
... iron alloy ferrite, primary coil is excited by a sinusoidal voltage of amplitude 1 volt to 15 volts and frequency 50 hurts to 20 hertz. The whole sensor is enclosed and shielded. So, that no field extends outside it and hence can all influence by outside fields. Look at this two circuit diagrams, in ...
SKY77185 数据资料DataSheet下载
... The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all active circuitry in the module. The MMIC contains on-board bias circuitry, as well as input and interstage matching circuits. Output match into a 50-ohm load is realized off-chip within the module package ...
... The single Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all active circuitry in the module. The MMIC contains on-board bias circuitry, as well as input and interstage matching circuits. Output match into a 50-ohm load is realized off-chip within the module package ...
SUBARTICLE 620-2.1 is deleted and the following substituted: 620
... 620-2.1 Ground Rods: Use ground rods meeting the requirements of UL 467 that are listed by an OSHA Nationally Recognized Testing Laboratory (NRTL). Ground rods must be made of copper-clad steel with a nominal diameter of 5/8 inches. Ground rod sections must be a minimum of eight feet in length and m ...
... 620-2.1 Ground Rods: Use ground rods meeting the requirements of UL 467 that are listed by an OSHA Nationally Recognized Testing Laboratory (NRTL). Ground rods must be made of copper-clad steel with a nominal diameter of 5/8 inches. Ground rod sections must be a minimum of eight feet in length and m ...
Large Current Rectifiers - Universidad Técnica Federico Santa María
... large transformer currents are needed to deliver a relatively low power to the load. In fact, the transformer and rectifier current magnitude and, hence, conduction losses, do not change with the reduction of load voltage and are determined by the magnitude of the load current only. On the other han ...
... large transformer currents are needed to deliver a relatively low power to the load. In fact, the transformer and rectifier current magnitude and, hence, conduction losses, do not change with the reduction of load voltage and are determined by the magnitude of the load current only. On the other han ...
Voltage-Divider Bias Circuits
... Biasing refers to the establishment of suitable dc values of different currents and voltages of a given transistor. Through proper biasing, a desired DC operating point or quiescent point; Q-Point of the transistor amplifier, in the active region (linear region) of the characteristics is obtaine ...
... Biasing refers to the establishment of suitable dc values of different currents and voltages of a given transistor. Through proper biasing, a desired DC operating point or quiescent point; Q-Point of the transistor amplifier, in the active region (linear region) of the characteristics is obtaine ...
Troubleshooting for Battery Tender Jr.
... Note: For models manufactured during & after 2006, after the battery becomes approximately 75% to 80% recharged, the Battery Tender JR will go into the absorption mode. At this time the LED will FLASH GREEN. Then after a period of time, possibly as long as 8 hours, it will go into float / maintenanc ...
... Note: For models manufactured during & after 2006, after the battery becomes approximately 75% to 80% recharged, the Battery Tender JR will go into the absorption mode. At this time the LED will FLASH GREEN. Then after a period of time, possibly as long as 8 hours, it will go into float / maintenanc ...
Time Resolved In Situ T Measurements of 6.5kV IGBTs during Inverter Operation
... The temperature measurements are performed in a 3-phase pulse-controlled inverter with water cooling. Each of the 3 phases consists of two single switch 6.5kV IGBT modules with 600A nominal rating. One module is on the low side and one module on the high side, i.e. no paralleling of the devices. Due ...
... The temperature measurements are performed in a 3-phase pulse-controlled inverter with water cooling. Each of the 3 phases consists of two single switch 6.5kV IGBT modules with 600A nominal rating. One module is on the low side and one module on the high side, i.e. no paralleling of the devices. Due ...
Opto-isolator
In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.