• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Meters designed for the way you work
Meters designed for the way you work

... Working on VSDs: Take accurate voltage, current and frequency measurements on the output side of the drive at either the drive itself or at the motor terminals. ...
TRANSIENTS AND RC TIME CONSTANTS The capacitor has a
TRANSIENTS AND RC TIME CONSTANTS The capacitor has a

Lab #2 Test Bench - Northern Arizona University
Lab #2 Test Bench - Northern Arizona University

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... system,”IEEE Trans. Power Electron., vol. 22, no. 3, pp. 1046–1053, May 2007. A. Ghosh and G. Ledwich, “Load compensating DSTATCOM in weakac systems,” IEEE Trans. Power Del., vol. 18, no. 4, pp. ...
Power Quality Enhancement in Distribution Systems Using
Power Quality Enhancement in Distribution Systems Using

... duration. The magnitude range is around10% to 90%. When there is a fault in the utility system it causessag. The utility might be from customer side or distributor side [2], [3]. However, these are the most frequently occurring power problems. For industries this kind of problem causes losses as it ...
BP5048-15
BP5048-15

... "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. ...
attachment=18223
attachment=18223

... current. The steady state condition is reached in an infinitely short time. Although the magnitude of the current does not exceed the steady-state values, the thyristors have an upper limit of di/ dt values that they can withstand during the firing process. Here, di/ dt is infinite, and the thyristo ...
End Semester Examination-2004
End Semester Examination-2004

... 12. The voltage across open delta VT connection under nominal steady state is the rated phase voltage. 13. Fifth harmonic is required to protect the transformer against inrush current. 14. Numerical relays have lower burden than the electromechanical relays. 15. Solid state relays enjoy more robustn ...
Full PowerPoint
Full PowerPoint

edge.rit.edu
edge.rit.edu

... Darlington transistor to dissipate stored charge in the inductor. Hysteresis may be needed and is DNP'd Compensation DNP components added ...
Principle of Troubleshooting
Principle of Troubleshooting

... If you have a transistor but you don't know if it is NPN or PNP, then you can find out which it is using Ohm-meter. Assuming C, B, and E are known on the transistor, do the following: - Connect the positive lead of your Ohm-meter to the base. - Touch the other lead of your meter to the collector. If ...
Film Capacitors - Power Factor Correction - DeltaCap Single
Film Capacitors - Power Factor Correction - DeltaCap Single

...  In case of the presence of harmonics installation of a de-tuned capacitor bank (reactors) must be considered.  Check the discharge resistors/reactors and in case of doubt, check their function: (1) Power the capacitor up and down. (2) After ≤ 60 seconds the voltage between the terminals must decl ...
bq24707/25/26 Input Voltage DPM
bq24707/25/26 Input Voltage DPM

... obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the speci ...
UNIT-1 - IEC GUIDE
UNIT-1 - IEC GUIDE

LK7378 - EASA Electrical Fundamentals 1 (for LK9339)
LK7378 - EASA Electrical Fundamentals 1 (for LK9339)

...  Close the switch and notice how bright the bulbs look. Don’t forget – the brighter the bulb, the greater the current flowing.  Does it matter where you connect the switch? Try it in different places in the circuit.  Unscrew one of the bulbs and notice the effect. Does it matter which bulb you un ...
Dual Channel Photologic Encoder Detector
Dual Channel Photologic Encoder Detector

... Two matched detectors with photolithographic control of relative position Dual Photologic® circuitry in single package provides reduced component count Open collector inverter output for flexibility of circuit interface Low cost plastic housing ...
ACS755xCB-100 - Allegro Microsystems
ACS755xCB-100 - Allegro Microsystems

... ▪ Monolithic Hall IC for high reliability ▪ Single +5 V supply ▪ 3 kVRMS isolation voltage between terminals 4/5 and pins 1/2/3 for up to 1 minute ▪ 27 kHz bandwidth ▪ Automotive temperature range ▪ End-of-line factory-trimmed for gain and offset ▪ Ultra-low power loss: 100 μΩ internal conductor res ...
74VHC27 Triple 3
74VHC27 Triple 3

g202 rev-16 manual
g202 rev-16 manual

... (TERM. 3) COIL A Connect one motor winding to this terminal (TERM. 4) COIL /A Connect the other end of the winding to this terminal (TERM. 5) COIL B Connect the other motor winding to this terminal (TERM. 6) COIL /B Connect the other end of the winding to this terminal Connect one motor winding to t ...
開啟檔案
開啟檔案

... 特點: ...
Photoresistor, LED, and Transistor
Photoresistor, LED, and Transistor

Basic Circuits
Basic Circuits

... In a series circuit there is only one path for the flow of charge, or current, as it leaves the power supply and travels through the circuit. Therefore all of the current from the power supply travels through each circuit component (lamps, carbon resistors, etc.). In a parallel circuit there are two ...
Electricity Distribution Network
Electricity Distribution Network

X Features Description Models Input Specifications
X Features Description Models Input Specifications

Series 119 - High Voltage Micro SIL Reed Relays
Series 119 - High Voltage Micro SIL Reed Relays

... This high voltage rating is for RESISTIVE loads only. At these high voltages, even stray capacitance can generate very high current pulses, which can damage the contact plating causing welding of the reed switch. If there is capacitance in circuit, provision should be made to limit the surge, to wit ...
< 1 ... 533 534 535 536 537 538 539 540 541 ... 947 >

Electrical ballast



An electrical ballast is a device intended to limit the amount of current in an electric circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps, to limit the current through the tube, which would otherwise rise to destructive levels due to the tube's negative resistance characteristic.Ballasts vary in design complexity. They can be as simple as a series resistor or inductor, capacitors, or a combination thereof or as complex as electronic ballasts used with fluorescent lamps and high-intensity discharge lamps.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report