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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  CW 80 POWERFUL 80 WATT TRANSFORMER EXCELLENT
LIONEL CW 80 POWERFUL 80 WATT TRANSFORMER EXCELLENT
$49.95
LIONEL FLATCAR WITH TRANSFORMER 6 31784 conventional classic o gauge train 6818
LIONEL FLATCAR WITH TRANSFORMER 6 31784 conventional classic o gauge train 6818
$48.84
Lionel Power Max Plus 40 Watt Transformer 24253 Excellent From Set
Lionel Power Max Plus 40 Watt Transformer 24253 Excellent From Set
$25.00
MTH 50 1033 DCS Remote Commander w Z 500 Transformer Power Pack
MTH 50 1033 DCS Remote Commander w Z 500 Transformer Power Pack
$79.95
TRANSFORMER HEAVY DUTY REPLACEMENT POWER CORD
TRANSFORMER HEAVY DUTY REPLACEMENT POWER CORD
$8.50
LIONEL FASTRACK CURVED POWER WIRE TERMINAL TRACK train o gauge 6 37103 031 TERM
LIONEL FASTRACK CURVED POWER WIRE TERMINAL TRACK train o gauge 6 37103 031 TERM
$8.84
22 Lionel L Power Cords B 292 for Lionel transformers 22 Total Free Shipping
22 Lionel L Power Cords B 292 for Lionel transformers 22 Total Free Shipping
$58.75
MTH Z750  75 WATTS OF POWER TRANSFORMER  NO CONTOLLER  TESTED LOT  15220
MTH Z750 75 WATTS OF POWER TRANSFORMER NO CONTOLLER TESTED LOT 15220
$49.95
LIONEL FASTRACK ACCESSORY CONNECTION TRACK POWER WIRE lockon connector 6 12053
LIONEL FASTRACK ACCESSORY CONNECTION TRACK POWER WIRE lockon connector 6 12053
$6.35
Train Tyco vintage transformer POWER PACK BLUE HO 8615 W BOX
Train Tyco vintage transformer POWER PACK BLUE HO 8615 W BOX
$5.00
Lionel Train Toy Power Supply Controller CW 80 Transformer + fast track lot 18pc
Lionel Train Toy Power Supply Controller CW 80 Transformer + fast track lot 18pc
$125.00
Lot of 4 Model Train Power Pack Transformer
Lot of 4 Model Train Power Pack Transformer
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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 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
K Line Train Power Chief 120V Train Transformer 120 Watt K 0956 Whistle Bell
K Line Train Power Chief 120V Train Transformer 120 Watt K 0956 Whistle Bell
$74.95
MTH Z 500 Transformer Power Supply BUY IT NOW with FREE SHIPPING
MTH Z 500 Transformer Power Supply BUY IT NOW with FREE SHIPPING
$32.00
Lionel 6 12866 PH 1 Trainmaster Power House Power Supply Transformer LN OB TT
Lionel 6 12866 PH 1 Trainmaster Power House Power Supply Transformer LN OB TT
$60.00
LIONEL 620 Watt ZW L ADVANCED TRANSFORMER train power pack 6 37921 NEW IN BOX
LIONEL 620 Watt ZW L ADVANCED TRANSFORMER train power pack 6 37921 NEW IN BOX
$785.00
Lionel Modern Era Parts Transformer Power Supply Controller w Whistle Direction
Lionel Modern Era Parts Transformer Power Supply Controller w Whistle Direction
$15.90
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
Vintage K Line Track  Power Supply Transformer
Vintage K Line Track Power Supply Transformer
$24.99
K LINE K 950 20 WATTS HOBBY TRANSFORMER CONTROLLER O GAUGE TRAIN POWER PACK
K LINE K 950 20 WATTS HOBBY TRANSFORMER CONTROLLER O GAUGE TRAIN POWER PACK
$12.99
Lionel 80 Watt Train Toy Power Supply Controller CW 80 Transformer Tested
Lionel 80 Watt Train Toy Power Supply Controller CW 80 Transformer Tested
$50.99
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
$4.99
Lionel Prewar Type T 100 Watt Transformer A Plethora of Power O
Lionel Prewar Type T 100 Watt Transformer A Plethora of Power O
$39.99
3 LIONEL B 292 L POWER CORDS FOR LIONEL TRANSFORMERSZW1033 RWKW SWLW1044
3 LIONEL B 292 L POWER CORDS FOR LIONEL TRANSFORMERSZW1033 RWKW SWLW1044
$19.95
MTH Z500 Transformer Power Unit Z Controller  DCS REMOTE COMMANDER ACCESSORY
MTH Z500 Transformer Power Unit Z Controller DCS REMOTE COMMANDER ACCESSORY
$11.66
Lionel 1038 30 Watt Train Transformer Nice Pliable Power Chord
Lionel 1038 30 Watt Train Transformer Nice Pliable Power Chord
$10.00
MTH Z 4000 Hobby Transformer Power Supply 400 Watts Factory Sealed O Gauge Power
MTH Z 4000 Hobby Transformer Power Supply 400 Watts Factory Sealed O Gauge Power
$449.00
Replacement LIONEL Transformer Power Cord Non Polarized
Replacement LIONEL Transformer Power Cord Non Polarized
$5.00
LIONEL 80 WATT Transformer Train Power Source Supply Controller 614198 CW 80 NEW
LIONEL 80 WATT Transformer Train Power Source Supply Controller 614198 CW 80 NEW
$109.95
LIONEL ACCESSORY POWER WIRE fastrack lockon track transformer connector 6 12053
LIONEL ACCESSORY POWER WIRE fastrack lockon track transformer connector 6 12053
$4.84
Marx Trains 729 Train Transformer Power Supply and Automatic Switch Control
Marx Trains 729 Train Transformer Power Supply and Automatic Switch Control
$9.95
Lionel Type 1033 90 Watt Train Transformer New L Power Chord W Original box
Lionel Type 1033 90 Watt Train Transformer New L Power Chord W Original box
$109.99
LIONEL O GAUGE CW 80 POWERFUL TRANSFORMER NEW TESTED
LIONEL O GAUGE CW 80 POWERFUL TRANSFORMER NEW TESTED
$49.00
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 AC Output source CW 80 NEW
LIONEL 80 WATT Transformer train power pack AC Output source CW 80 NEW
$109.84


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