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Power Transformer

Power Transformer Specifications and Standards

A power transformer may be best defined as an electrical device aimed at transferring alternating current or voltage from one electric circuit to another through electromagnetic induction. Power transformers can have features for electrical isolation, power distribution, and control and instrumentation applications. Power transformers can be configured as either a single-phase primary configuration or a three-phase configuration.

The operating principle of power transformers is quite simple. The transformer basically consists of a number of coils of insulated wire wound on a laminated steel core. When voltage is introduced to one coil, known as the primary, it magnetizes the iron core. A voltage is then induced in the other coil, known as the secondary or output coil. The change of voltage between the primary and secondary coils depends on the turn ratio of the two coils.

Transformers are not restricted to one output coil. In fact, they can provide complete range of voltage sources from the one input coil by using separate windings on the secondary side. This makes transformers very versatile for supplying complete systems with all of their voltage requirements from one source.

Power transformers are the most common class of transformers and they have been built for a power of 1300 megavolt-amperes and a voltage of 750 kilovolts. Specifying a power transformer entails lot of research, hard-work, and knowledge. In reality though, you need to come up with a specification that would best suit your needs.

Power Transformers are designed and manufactured to meet specific customer requirements and specifications along with the applicable standards. The important specifications to consider when searching for power transformers include maximum secondary voltage rating, maximum secondary current rating, maximum power rating, and output type. A transformer may provide more than one secondary voltage value. The Rated Power of the transformer is the sum of the VA (Volts x Amps) for all of the secondary windings.

The function of power transformers is to convert one voltage to another at high power level. Power transformers are used in electronic circuits and come in many different types and applications. Power transformers are sometimes considered to be those with ratings of 300 volt-amperes and below. These transformers normally provide power to the power supply of an electronic device, such as in power amplifiers in audio receivers.

Power transformers can be designed either as a toroidal transformer or as a laminated transformer. Toroidal transformers have copper wire wrapped around a cylindrical core so the magnetic flux, which occurs within the coil, doesn't leak out. Besides, the coil efficiency is perfect and the magnetic flux has little influence on other components. Laminated transformers, on the other hand contain laminated-steel cores and they are known as E-I transformers. These steel laminations are insulated with a non-conducting material like varnish, and then formed into a core that reduces electrical losses.

Power transformers can be one of several different types. These include autotransformer, control transformer, current transformer, distribution transformer, general-purpose transformer, instrument transformer, isolation transformer, potential (voltage) transformer, power transformer, step-up transformer, and step-down transformer. Again, there are different types of mountings for power transformers that include chassis mount, dish or disk mount, enclosure or free standing, h frame, and PCB mount.

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Lionel No 675 2 6 2 Steam Engine 1947 Set + Power Supply Transformer WORKING
Lionel No 675 2 6 2 Steam Engine 1947 Set + Power Supply Transformer WORKING
$59.99
10 L POWER CORDs FOR LIONEL TRANSFORMERS 4090 MPC Era HEAVY DUTY Free Shipping
10 L POWER CORDs FOR LIONEL TRANSFORMERS 4090 MPC Era HEAVY DUTY Free Shipping
$49.99
LIONEL TRAIN TRANSFORMER power pack source O GAUGE AC CW 80 NEW IN BOX NEW
LIONEL TRAIN TRANSFORMER power pack source O GAUGE AC CW 80 NEW IN BOX NEW
$49.00
LIONEL FASTRACK 036 CIRCLE LIONCHIEF RC TERMINAL  POWER layout 6 12015 RCT NEW
LIONEL FASTRACK 036 CIRCLE LIONCHIEF RC TERMINAL POWER layout 6 12015 RCT NEW
$59.94
LIONEL FASTRACK TERMINAL TRAIN TRACK connection wires fast fasttrack 6 12016 NEW
LIONEL FASTRACK TERMINAL TRAIN TRACK connection wires fast fasttrack 6 12016 NEW
$11.74
Lionel Type 1034 75 Watt Transformer Layout Ready Good Power Chord C Nice Boxed
Lionel Type 1034 75 Watt Transformer Layout Ready Good Power Chord C Nice Boxed
$9.06
Lionel Type LW 125 Watt Transformer Layout Ready Good Power Cord Nice A
Lionel Type LW 125 Watt Transformer Layout Ready Good Power Cord Nice A
$75.61
L embossed Lionel Power Cord Replacement For Transformers 6 ft 18 AWG tinned
L embossed Lionel Power Cord Replacement For Transformers 6 ft 18 AWG tinned
$7.50
Lionel Type LW 125 Watt Transformer Layout Ready New Power Cord Nice F
Lionel Type LW 125 Watt Transformer Layout Ready New Power Cord Nice F
$75.61
LIONEL Type TMCC Conventl Transformer TPC TIU to Fastrack Power Cables 2
LIONEL Type TMCC Conventl Transformer TPC TIU to Fastrack Power Cables 2
$14.00
L POWER CORD FOR LIONEL TRANSFORMERS 4090 MPC Era etc HEAVY DUTY Free Shipping
L POWER CORD FOR LIONEL TRANSFORMERS 4090 MPC Era etc HEAVY DUTY Free Shipping
$6.99
MTH Z 500 Transformer Control Unit and Power Supply
MTH Z 500 Transformer Control Unit and Power Supply
$55.00
MTH 40 1000A Z 1000 Transformer Power Brick for Train 100 watt
MTH 40 1000A Z 1000 Transformer Power Brick for Train 100 watt
$64.99
MTH Z 500 TRANSFORMER POWER BRICK  DCS REMOTE COMMANDER o gauge BULK 40 500 R
MTH Z 500 TRANSFORMER POWER BRICK DCS REMOTE COMMANDER o gauge BULK 40 500 R
$84.84
Lionel Type 1034 75 Watt Transformer Layout Ready Good Power Cord EUC
Lionel Type 1034 75 Watt Transformer Layout Ready Good Power Cord EUC
$20.00
Vintage K Line Track  Power Supply Transformer
Vintage K Line Track Power Supply Transformer
$24.99
LIONEL CW 40 WATT Transformer train pack power source control cw40 6 81495 NEW
LIONEL CW 40 WATT Transformer train pack power source control cw40 6 81495 NEW
$54.95
Lionel Type S 80 Watt Transformer Good Power Good Cord No Whistle
Lionel Type S 80 Watt Transformer Good Power Good Cord No Whistle
$25.46
2 L POWER CORDs FOR LIONEL TRANSFORMERSZWKWSWTW1033 HEAVY DUTY FREE SHIP
2 L POWER CORDs FOR LIONEL TRANSFORMERSZWKWSWTW1033 HEAVY DUTY FREE SHIP
$10.99
LIONEL TRANSFORMER POWER CORD 16 GAUGE HEAVY DUTY FOR 1033 1034 ZW KW RW SW LW
LIONEL TRANSFORMER POWER CORD 16 GAUGE HEAVY DUTY FOR 1033 1034 ZW KW RW SW LW
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LIONEL 6 14198 CW 80 WATT TRANSFORMER CONTROLLER O GAUGE TRAIN POWER PACK SUPPLY
LIONEL 6 14198 CW 80 WATT TRANSFORMER CONTROLLER O GAUGE TRAIN POWER PACK SUPPLY
$10.00
Lionel Type 4090 90 Watt Transformer Layout Ready Good Power Cord Tested
Lionel Type 4090 90 Watt Transformer Layout Ready Good Power Cord Tested
$78.00
Replacement LIONEL Transformer Power Cord Non Polarized
Replacement LIONEL Transformer Power Cord Non Polarized
$5.00
Lionel Type V 150 Watt Trainmaster Transformer 4 Circuit AC Power Pack
Lionel Type V 150 Watt Trainmaster Transformer 4 Circuit AC Power Pack
$24.99
LIONEL ACCESSORY POWER WIRE fastrack lockon track transformer connector 6 12053
LIONEL ACCESSORY POWER WIRE fastrack lockon track transformer connector 6 12053
$4.84
2 Vintage LIONEL Transformers  1033 90 watt   R 110 Watt 2 train power
2 Vintage LIONEL Transformers 1033 90 watt R 110 Watt 2 train power
$45.99
MTH Train O Scale Flat Car Transformer Load Pennsylvania Power  Light 30 76482
MTH Train O Scale Flat Car Transformer Load Pennsylvania Power Light 30 76482
$99.99
LIONEL POST WAR POWER POSTS FOR ZW TRANSFORMERS
LIONEL POST WAR POWER POSTS FOR ZW TRANSFORMERS
$6.95
LIONEL 80 WATT Transformer train power pack CW 80 NEW
LIONEL 80 WATT Transformer train power pack CW 80 NEW
$89.84
Vintage 1950s Lionel Train Tracks  Power Transformer With Brackets
Vintage 1950s Lionel Train Tracks Power Transformer With Brackets
$10.00
Lionel 6 26646 Pennsylvania Power  Light Transformer Flat Car w Generator NIB
Lionel 6 26646 Pennsylvania Power Light Transformer Flat Car w Generator NIB
$24.99
Lionel Type 1034 75 Watt Transformer Layout Ready Good Power Cord B Nice
Lionel Type 1034 75 Watt Transformer Layout Ready Good Power Cord B Nice
$40.76
Lionel Type 1034 75 Watt Transformer Layout Ready NEW Power Cord C Nice
Lionel Type 1034 75 Watt Transformer Layout Ready NEW Power Cord C Nice
$42.46
Lionel Type 4090 90 Watt Transformer Layout Ready Good Power Cord Nice A
Lionel Type 4090 90 Watt Transformer Layout Ready Good Power Cord Nice A
$48.41
Lionel Type 4090 90 Watt Transformer Layout Ready Good Power Cord Nice B
Lionel Type 4090 90 Watt Transformer Layout Ready Good Power Cord Nice B
$48.41
Lionel Type LW 125 Watt Transformer Layout Ready NEW Power Chord B NICE
Lionel Type LW 125 Watt Transformer Layout Ready NEW Power Chord B NICE
$89.21
Lionel Type LW 125 Watt Transformer Layout Ready NEW Power Chord C NICE
Lionel Type LW 125 Watt Transformer Layout Ready NEW Power Chord C NICE
$89.21
Lionel Type LW 125 Watt Transformer Layout Ready NEW Power Chord D NICE
Lionel Type LW 125 Watt Transformer Layout Ready NEW Power Chord D NICE
$89.21
Lionel Type LW 125 Watt Transformer Layout Ready Good Power Chord E Nice
Lionel Type LW 125 Watt Transformer Layout Ready Good Power Chord E Nice
$83.26
LIONEL O GAUGE FASTRACK LIONCHIEF PLUS 72 WATT POWER SUPPLY wire 6 81603 NEW
LIONEL O GAUGE FASTRACK LIONCHIEF PLUS 72 WATT POWER SUPPLY wire 6 81603 NEW
$49.94


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