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ACS754xCB-150 - Allegro Microsystems
ACS754xCB-150 - Allegro Microsystems

Choose the Right Regulator for the Job: Part 1, Regulator Control
Choose the Right Regulator for the Job: Part 1, Regulator Control

TVS Diode Array SPA SP724 Datasheet
TVS Diode Array SPA SP724 Datasheet

... The SP724 is comprised of bipolar SCR/diode structures to protect up to four independent lines by clamping transients of either polarity to the power supply rails. The SP724 offers very low leakage (1nA Typical) and low input capacitance (3pF Typical). Additionally, the SP724 is rated to withstand t ...
Lab- Parallel Circuits
Lab- Parallel Circuits

... Method – Part A – Series circuit 1. Connect a series circuit. Start at the negative terminal and add on the components in the following order: power source set to 10 V, ammeter, open switch, bulb, resistor. 2. Turn on the source and close the switch. Record the current (IT) in observation Table 1. 3 ...
ELECTRONIC CONTROL SYSTEMS
ELECTRONIC CONTROL SYSTEMS

... These control instruments series “S” are among the most modern and complete available today on the market. They have been built to command membrane solenoids on dust removal filters. A large back lighted liquid crystal display clearly shows cleaning system status. It has a fast-flow setting menu wit ...
Health Physics Course 16.739 Instrumentation I
Health Physics Course 16.739 Instrumentation I

Electrical 2
Electrical 2

Item Spec`s Spec`s with Sw DL 3155E17R POWER SUPPLIES
Item Spec`s Spec`s with Sw DL 3155E17R POWER SUPPLIES

... current load, experimenting voltage regulator with different input experimenting voltage regulator with different input voltage values, voltage values, experimenting voltage regulator with different load experimenting voltage regulator with different load values, understanding values, understanding ...
Implementing a Battery Energy Storage System with a Converterless
Implementing a Battery Energy Storage System with a Converterless

... longer transmission distances and/or a high power transmission capacity, more than a 20 % voltage drop in the DC network can be allowed [3]. As a result, the CEIs in this network are guaranteed to produce a nominal 400 VAC three-phase voltage from the 580–790 V input DC voltage. Hence, an active DC ...
Generator Handbook
Generator Handbook

... This has probably never been truer than it is in today’s workplace. The rise in court cases involving accidents on the job has grown steadily in recent years. Many of these unfortunate accidents could be avoided by having a staff that is properly trained and capable of educating the customer on the ...
Analog Meters Clamping to DIN Rails
Analog Meters Clamping to DIN Rails

... installations which utilizes 35 mm.DIN rails for equipment mounting. The mounting width is 45 mm. These meters housed in molded Polycarbonate cases are suitable for the measurement of AC current & voltage, DC current & voltage & Frequency. The moving iron meters indicate rms values practically indep ...


presentation - Mrs-oc
presentation - Mrs-oc

More Circuit Components: Capacitors, Inductors, and Diodes
More Circuit Components: Capacitors, Inductors, and Diodes

... causing a large voltage to appear across this winding. This voltage on the primary is magnetically coupled to (and stepped up by) the secondary winding, generating a voltage of 30 kV - 40 kV on the secondary side. In the automobile ignition, a capacitor is placed across the points to minimize damage ...
ACS754xCB-050 - Allegro MicroSystems
ACS754xCB-050 - Allegro MicroSystems

... ▪ Extremely stable output offset voltage ▪ Small package size, with easy mounting capability ▪ Output proportional to AC and DC currents ...
HVDC AND POWER ELECTRONICS INTERNATIONAL
HVDC AND POWER ELECTRONICS INTERNATIONAL

... requires that charging and discharging frequencies be equal. Together they present a waveform with very low sixth harmonic ripple of the switching frequency and at the same time increase the power cited in (7) by a factor of three. ...
Compact Power Line Shelves Features Description
Compact Power Line Shelves Features Description

... application and sized to carry the rated output current. The interconnecting cables should be capable of carrying the overload current and short circuit current without damage or risk of fire. • The output for the system is SELV and has available power greater than 240VA. • Insulation on output fiel ...
connected photovoltaic (pv) system - IJIERT
connected photovoltaic (pv) system - IJIERT

How to Use a Voltmeter and an Ammeter  Name ______________________________ Physics
How to Use a Voltmeter and an Ammeter Name ______________________________ Physics

... 1. Create the 2 circuits below in DC Circuit Builder. Using the voltmeter, determine how much the voltage drop across each set of test points. Use this data to complete the tables Circuit #1 ...
Current-Only Directional Overcurrent Relay
Current-Only Directional Overcurrent Relay

... protection of power transmission systems. Distributionside protection, e.g., for radial and ring-main units [2], mostly employs non-directional relays. Here, a fault generally means an overcurrent [3], mainly from a short circuit. The nondirectional relay typically monitors the overcurrent (from the ...
5. Diodes As with transistors, diodes are fabricated from semi
5. Diodes As with transistors, diodes are fabricated from semi

... European diodes are marked using two or three letters and a number. The first letter is used to identify the material used in manufacturing the component (A - germanium, B - silicon), or, in case of letter Z, a Zener diode. The second and third letters specify the type and usage of the diode. Some o ...
Subsynchronous torque interaction for HVDC Light B - IEA
Subsynchronous torque interaction for HVDC Light B - IEA

... Subsynchronous torque interaction (SSTI) is a well known phenomenon in high voltage AC networks. It can be sustained and amplified in power systems with series compensated lines or active devices for power flow or voltage control. These devices introduce negative damping for the turbine-generator sy ...
Distribution systems
Distribution systems

Electricity - Evergreen State College Archives
Electricity - Evergreen State College Archives

... liquefy Helium. Never before had the human race achieved a temperature of 4 Kelvin. The first reported superconductor was mercury, when cooled to 4 Kelvin. A second property exhibited by superconducting materials is the Meissner effect. Like all diamagnetics, superconductors repel magnets. When a ma ...
3.4 Poloidal Field Power Supply Systems for the EAST Steady State
3.4 Poloidal Field Power Supply Systems for the EAST Steady State

... All the TF and PF coils in the EAST tokamak are superconducting. Therefore, compared with a normal tokamak, the power required by the magnets will be considerable smaller, especially to the TF system: its power decreases from hundreds of megawatts to hundreds of kilowatts. In EAST, the TF power supp ...
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Mercury-arc valve



A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.
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