Investigation: Conductometric titration of ethanoic acid Hypothesis
... Fix the electrodes a set distance apart. ( use a retort or tape electrodes to a piece of wood) Use AC current and an AC ammeter. Add 40 mL of 0.2 M ethanoic acid to a beaker. Complete your circuit and record the voltage. Add 2.0 M NaOH 1 mL at a time, recording the current after each addition. Stop ...
... Fix the electrodes a set distance apart. ( use a retort or tape electrodes to a piece of wood) Use AC current and an AC ammeter. Add 40 mL of 0.2 M ethanoic acid to a beaker. Complete your circuit and record the voltage. Add 2.0 M NaOH 1 mL at a time, recording the current after each addition. Stop ...
Aerowave - Index of
... cycles per second), is the number of complete EP to EN alternations that occur in a one second period of time. The Aerowave power source can be adjusted from 40 to 400 Hz, which in turn affects the arc cone (arc plasma width). For welding thick aluminum, a low frequency allows maximum welding energy ...
... cycles per second), is the number of complete EP to EN alternations that occur in a one second period of time. The Aerowave power source can be adjusted from 40 to 400 Hz, which in turn affects the arc cone (arc plasma width). For welding thick aluminum, a low frequency allows maximum welding energy ...
Simple Regulated Supply (SRS)
... unregulated voltage that may even be constantly changing. For example, as a battery is used the voltage across the battery slowly decreases. This is bad for most circuits because fixed voltages are typically needed (such as the 7400 series which needs 5V). So how do we take a supply of electricity t ...
... unregulated voltage that may even be constantly changing. For example, as a battery is used the voltage across the battery slowly decreases. This is bad for most circuits because fixed voltages are typically needed (such as the 7400 series which needs 5V). So how do we take a supply of electricity t ...
Chilled water to the floor?
... Use 3 phase power distribution or high voltage DC Fewer transformations = greater efficiency Variable speed fan motors use less power Insist on high efficiency ‘right sized’ power supplies from your vendor (with power factor ...
... Use 3 phase power distribution or high voltage DC Fewer transformations = greater efficiency Variable speed fan motors use less power Insist on high efficiency ‘right sized’ power supplies from your vendor (with power factor ...
Watts, Vars and VA - Crompton Instruments
... The PF is used to compute real power. Real power is always expressed in Watts, while apparent power is expressed in VA. The reason real power is important is that the power consumed by an inverter from a battery is proportional to the real power delivered to the load, not the apparent power. Two sep ...
... The PF is used to compute real power. Real power is always expressed in Watts, while apparent power is expressed in VA. The reason real power is important is that the power consumed by an inverter from a battery is proportional to the real power delivered to the load, not the apparent power. Two sep ...
Presentation of 5th, 3rd, 2nd and first order machine
... wind farm is based on doubly fed induction generator (DFIG) due to noticeable advantages: the various speed generation, the decoupled control of active and reactive power and the improvement of the power quality. However, wind turbines based on the DFIG are very sensitive to grid disturbance, especi ...
... wind farm is based on doubly fed induction generator (DFIG) due to noticeable advantages: the various speed generation, the decoupled control of active and reactive power and the improvement of the power quality. However, wind turbines based on the DFIG are very sensitive to grid disturbance, especi ...
Section 26 05 05 High Voltage Cables
... Perform Hi-pot testing of cable at a voltage level not exceeding cable rating on the original reel at the UBC site. Failure to comply will void the factory warranty and the installation will be at the Contractor’s risk. ...
... Perform Hi-pot testing of cable at a voltage level not exceeding cable rating on the original reel at the UBC site. Failure to comply will void the factory warranty and the installation will be at the Contractor’s risk. ...
3.4 Three-phase transformer (pole-mounted
... If the LV conductors are energised from an interconnected transformer, conduct the phase-out test at the new transformer’s LV disconnector or fuse box. If the LV conductors are not energised, proceed to item 5 (ENERGISATION OF THE NETWORK WITH LOAD) and conduct the phase-out test on normally ope ...
... If the LV conductors are energised from an interconnected transformer, conduct the phase-out test at the new transformer’s LV disconnector or fuse box. If the LV conductors are not energised, proceed to item 5 (ENERGISATION OF THE NETWORK WITH LOAD) and conduct the phase-out test on normally ope ...
component parts
... Originally designed for hi-end automotive stereo applications, this is a top quality product for any hi-fidelity use. The case is a 17 lead single in-line (SIL) (every other pin bent to DIL) plastic power package. The circuit contains four 11 watt single-ended or two 22 watt bridge amplifiers. It fe ...
... Originally designed for hi-end automotive stereo applications, this is a top quality product for any hi-fidelity use. The case is a 17 lead single in-line (SIL) (every other pin bent to DIL) plastic power package. The circuit contains four 11 watt single-ended or two 22 watt bridge amplifiers. It fe ...
The Pearl II Phono Stage By Wayne Colburn Introduction Here is the
... are regulated by U1 and U2 and their associated circuitry. The unregulated 26 to 35 volt rails are RC filtered, actively regulated down to 24 volts, and then passively filtered again before reaching the rails of the second gain stage. The first (input) gain stage is additionally filtered actively by ...
... are regulated by U1 and U2 and their associated circuitry. The unregulated 26 to 35 volt rails are RC filtered, actively regulated down to 24 volts, and then passively filtered again before reaching the rails of the second gain stage. The first (input) gain stage is additionally filtered actively by ...
Aalborg Universitet
... are attractive to be a main charging style in future because its power rating could be up to 50 kW and save much charging time therefore meeting the comfort level of PEV drivers [3]. Taking into account all above, PEV will account for a large portion of energy consumption and have a considerable imp ...
... are attractive to be a main charging style in future because its power rating could be up to 50 kW and save much charging time therefore meeting the comfort level of PEV drivers [3]. Taking into account all above, PEV will account for a large portion of energy consumption and have a considerable imp ...
Dynamo
... and 60 Hz AC, or many different output voltages at the Main article: Excitation (magnetic) same time. The size and mass of the rotor was made large so that the rotor would act as a flywheel to help smooth The earliest dynamos used permanent magnets to create out any sudden surges or dropouts in the ap ...
... and 60 Hz AC, or many different output voltages at the Main article: Excitation (magnetic) same time. The size and mass of the rotor was made large so that the rotor would act as a flywheel to help smooth The earliest dynamos used permanent magnets to create out any sudden surges or dropouts in the ap ...
GridAdvisor™ Series II Smart Sensor Increases Outage Management and Capacitor Bank Efficiencies While Providing Enhanced Smart Grid Data 9/17/13 Read more
... improves overall efficiencies in distribution systems by identifying directional fault targeting, detecting capacitor bank fuse failure and providing real time line monitoring at nearly any location via the Distributed Network Protocol 3 (DNP3). ...
... improves overall efficiencies in distribution systems by identifying directional fault targeting, detecting capacitor bank fuse failure and providing real time line monitoring at nearly any location via the Distributed Network Protocol 3 (DNP3). ...
KSH45H11 PNP Epitaxial Silicon Transistor Absolute Maximum Ratings
... DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when p ...
... DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when p ...
ACDC2017_0008_final - The University of Manchester
... to the incremental use of HVDC systems, it is expected that two or more HVDC links will feed into the UK’s transmission network within a short electrical distance and will form a so- ...
... to the incremental use of HVDC systems, it is expected that two or more HVDC links will feed into the UK’s transmission network within a short electrical distance and will form a so- ...
ISL6744A - Intersil
... RTD - This is the oscillator timing capacitor discharge current control pin. A resistor is connected between this pin and GND. The current flowing through the resistor determines the magnitude of the discharge current. The discharge current is nominally 55x this current. The PWM deadtime is determin ...
... RTD - This is the oscillator timing capacitor discharge current control pin. A resistor is connected between this pin and GND. The current flowing through the resistor determines the magnitude of the discharge current. The discharge current is nominally 55x this current. The PWM deadtime is determin ...
Design Solutions 7 - A Low Cost Dynamic VID
... A Low Cost Dynamic VID Power Supply for Pentium® III Processors INTRODUCTION The latest Pentium® III mobile processors announced by Intel require a 2-level power supply voltage that must be dynamically switched. A power supply that satisfies these requirements can be constructed using a DC/DC contro ...
... A Low Cost Dynamic VID Power Supply for Pentium® III Processors INTRODUCTION The latest Pentium® III mobile processors announced by Intel require a 2-level power supply voltage that must be dynamically switched. A power supply that satisfies these requirements can be constructed using a DC/DC contro ...
wound rotor machine fed by a single-phase grid
... consists of a wound rotor machine and an inverter without any rectifier and input filter. ac–ac energy conversion systems with regenerative capability have been widely applied for adjustable speed operation of electric machines in various industries. In these energy conversion systems, a back-to-bac ...
... consists of a wound rotor machine and an inverter without any rectifier and input filter. ac–ac energy conversion systems with regenerative capability have been widely applied for adjustable speed operation of electric machines in various industries. In these energy conversion systems, a back-to-bac ...
98% Efficient Single-Stage AC/DC Converter Topologies
... intermediate high 400V DC voltage bus by use of 6 or more controllable switches. The second Isolated DC/DC converter stage then provides isolation and conversion to lower DC voltages, such as 48V or 12V. Unfortunately, all present isolated DC/DC converters must store the DC output energy in the form ...
... intermediate high 400V DC voltage bus by use of 6 or more controllable switches. The second Isolated DC/DC converter stage then provides isolation and conversion to lower DC voltages, such as 48V or 12V. Unfortunately, all present isolated DC/DC converters must store the DC output energy in the form ...
1 - Lab. Nr 4 Use of a graphic LCD module Aim
... LEDs. The LEDs are connected with a common anode. To limit the current a resistor must be connected in series with the LEDs. Use a resistor with the resistance 3 ohm (or three ten ohm resistors in parallel). Connect, test and measure the power consumption for the LED backlight. Lab. report: Tables t ...
... LEDs. The LEDs are connected with a common anode. To limit the current a resistor must be connected in series with the LEDs. Use a resistor with the resistance 3 ohm (or three ten ohm resistors in parallel). Connect, test and measure the power consumption for the LED backlight. Lab. report: Tables t ...
Alternating current
Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).