Our Sites: GlobalSpec.com | GlobalSpec Electronics | CR4
Free Registration 
Welcome to GlobalSpec!
Find parts, products, suppliers, datasheets, and more for:

Power Transformer

 

Find Suppliers by Category

Power transformers convert power-level voltages from one level or phase configuration to another.  They can include features for electrical isolation, power distribution, and control and instrumentation applications.
Search by Specification | Learn More

Products & Services

See also: Featured Products | Technical Articles | Engineering Web Results

Conduct Research Top

  • Power Transformer Attenuates Harmonics
    and distribution power transformers. they are not the same. Transients typically are not related. all down the line. All loads in common with the transformer. to normal operating conditions and are a random occur-. secondary share the effects of the harmonics--so it's a. rence with no repeatable time
  • Solid-State ac Power Sources for Transformer Testing
    in the windings, core clamps, circulating currents in parallel windings, and other factors. The term "small" is relative to the overall power that the transformers handle. The U.S. Environmental Protection Agency (EPA) estimates that transformer losses account for 60 to 80 billion kW-hr annually
  • Transformer Theory
    . Transformers are generally divided into two main types. Power transformers are used to convert voltages and provide operating power for electrical devices, while signal transformers are used to transfer some type of useful information from one form or location to another. Written by Les Beckwith
  • The Importance of Effective Transformer and Control Transformer Protection (.pdf)
    . % of Transformer Secondary Current Rating. rating may be used. Less than 9. 167. *KLDR= Littelfuse UL Class CC time-delay series. 9 or more. 1252. 1. 500% for Motor Circuit Control Power Transformers. 2. If 125% does not correspond to a standard fuse rating, the next higher standard. rating may
  • Harmonic Mitigation Transformer Performance Report (.pdf)
    to harmonic distortion, were the cause of video noise detected on some of the studio's equipment. Also, there was concern that the main 225 kVA technical power transformer was running excessively hot due to the harmonic content in the current drawn by the audio-video equipment. ETV HMT Performance Report. E
  • The Good Old Power Resistors
    of high-voltage power transformers could put you to sleep. If a current needed "tweaking" you looked at a 3-inch panel meter, and took control with a knob you could get your whole fist around!. Riedon. Riedon is a resistor manufacturing company, specializing in Power Resistors, Precision Resistors
  • More-Efficient Motors and Transformers -- If You Can Get Them
    committed to providing NEMA Premium Efficiency Transformers, including ABB Inc., Acme Electric Corp., Cooper Power Systems, Federal Pacific, General Electric/ GE Prolec, Kentucky Association of Electric Cooperatives, Schneider Electric/Square D, and VanTran Industries Inc. Visible in this transformer model
  • Cost vs. Exciting Power of 50/60HZ Transformers (.doc)
    overlooked consequence of using cheaper materials is the loss of energy through exciting power. In this analysis we will discuss how to greatly reduce the exciting power of a transformer as well as show the justification for the increased material costs of doing so.

Engineering Web Search: Power Transformer Top