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Stepup Transformer. Stepup Transformer Hardwired Floor Mount 208V 240/120V. Manufacturer Part# TRN- 0244. Product Type: Step Up Transformer; Power Rating: 5 kVA ...
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Power Bright VC1500W Voltage Transformer 1500 Watt Step Up/Down 110 Volt - 220 Volt
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Price : $74.39
Post Date : Nov 09, 2011 10:57:28
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This is a voltage converter or transformer that can be used as a step up transformer in 110/120 volt countries or as a step down transformer in 220/230/240 volt countries. This heavy duty voltage transformer can be used for continuous duty. It will convert voltages of 220-240 volts to 110-120 and will also convert voltages from 110-120 to 220-240 volts.
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Goldsource® STU-3000 Step Up/Down Voltage Transformer Converter - AC 110/220 V - 3000 Watt
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Post Date : Oct 23, 2011 23:54:24 | Usually ships in 24 hours

- Step Up/Down transformer converts 220-240 volts down to 110-120 Volts or 110-120 volts up to 220-240 volts.
- Simultaneous 3-mode Output: 5V (USB) / 120V (Standard US outlet) / 220V (Universal outlet)
- Four input voltages selectable: 110V/120V/220V/240V
- All range fuse protection with two spare fuses included.
- CE certified & 3-year manufacturer's limited warranty.
More Specification..!!
Goldsource® STU-3000 Step Up/Down Voltage Transformer Converter - AC 110/220 V - 3000 Watt
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Friday, October 21, 2011
Power Bright VC3000W Voltage Transformer 3000 Watt Step Up/Down 110 Volt - 220 Volt
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Price : $100.00
Post Date : Oct 21, 2011 14:09:37
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3000 Watt Voltage Transformer (VC3000W) This voltage converter can be used in 110 volt countries and 220 volt countries. It will convert from 220-240 volt to 110-120 volt AND from 110-120 volt to 220-240 volt.
Monday, October 17, 2011
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Things to Know About a Power Transformer
Basically, a transformer is an electrical device designed to transfer alternating current or voltage from one electric circuit to another by means of electromagnetic induction. The transformer can be designed to step up or step down voltages. The transformers usually have a long and trouble free life since they do not involve any moving parts and is completely static solid state device and work under normal conditions.
The basic model or the simplest type of custom transformers consists of two or more coils of insulated wire wound on a laminated steel core. When voltage is induced to the primary coil, it magnetizes the iron core. In another coil called as the secondary coil the voltage is then induced. This is called as the output coil. The turn ratios of the primary and secondary coils determine the change of voltage between the two coils. They are capable of providing a whole range of voltage sources from the one input coil by using separate windings on the secondary side. Thus the transformers turn out to be the best method for supplying complete systems with all of their voltage requirements from one source.
If you are planning to buy a transformer, three factors should be considered prior to the purchase. You must determine primary voltage and frequency, the required secondary voltage and the capacity required in volt amperes. There is a simple process used to determine the factors. You have to multiply the load current (amperes) by the load voltage for single phase. For example if the load is 40 amperes like in a motor, and the secondary voltage is 240 volts, then 240 multiplied by 40 will give 9600 VA.A 10 KVA (10,000 volt-amperes) transformer is required.
It is better suggested to select the transformer larger than the actual load. This would allow expansion and is meant for safety purposes. If it is 3 phase KVA multiply rated volts x load amps x 1.73 (square root of 3) then divide by 1000. If you are going to design the power distribution for an entire building, then you must select the service transformer and distribution transformer.
It is also important to determine the incoming electric transformers voltage. 50 Hz, 60Hz and 400 Hz are the three common frequencies available. For high powered applications like aerospace technologies, the 400 Hz is reserved. When evaluating transformers, it is also important to consider the secondary power specifications. There are some other specifications that have to be kept in mind while selecting an electric transformer include the maximum ratings of secondary current and voltage rating, power and output rating. According to phase an connections, the power transformers have various configurations. Single phase and three-phase are most commonly used ones. Depending upon the number of primary windings in proportion, both the sizes and expense of electric transformers would increase.
You must also take essential care in the maintenance of the custom transformers. If the transformer has to be located at harsh environments, whether indoors or outdoors; it is important that the core/coil, leads, and Accessories should be adequately protected.
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Thursday, April 14, 2011
Seven Star Step Up and Down Transformer TC500 - Transformer - AC 110/220 V - 500 Watt
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Post Date : Apr 14, 2011 08:20:11 | Usually ships in 1-2 business days

- 500 watts capacity
- Built-in fuse protection system
- Power on-off switch with led indicator
- Input voltage selector switch (120 or 220 volt)
- 3 Outlets (receptacles) to plug your item with standard American style plug or 2 round prong Asian/European style plug
More Specification..!!
Seven Star Step Up and Down Transformer TC500 - Transformer - AC 110/220 V - 500 Watt
Thursday, March 31, 2011
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Sunday, March 20, 2011
PACIFIC CREST OFFERS WIND FARM TURBINE STEP-UP TRANSFORMERS.: An article from: Industrial Environment
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Price : $9.95
Post Date : Mar 20, 2011 21:19:12
Available for download now

This digital document is an article from Industrial Environment, published by Worldwide Videotex on April 1, 2010. The length of the article is 428 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.
Citation Details
Title: PACIFIC CREST OFFERS WIND FARM TURBINE STEP-UP TRANSFORMERS.
Author: Unavailable
Publication:Industrial Environment (Newsletter)
Date: April 1, 2010
Publisher: Worldwide Videotex
Volume: 21 Issue: 4 Page: NA
Distributed by Gale, a part of Cengage Learning
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Tuesday, March 15, 2011
Power Bright VC100W Voltage Transformer 100 Watt Step Up/Down 110 Volt - 220 Volt
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Post Date : Mar 16, 2011 05:40:21 | Usually ships in 1-2 business days

- 100 watts continuous power
- On and Off Switch
- 2 Spare Fuses Included
- FREE Grounded Adapter Included
- Heavy Duty