Coil Transformer
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 Square D 3000 450kVA 4160 480 cast coil transformer  US $84,600.00
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 GE 3000 4000kVA 4160 480 cast coil transformer US $84,600.00
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 Square D 2000kVA 13800 480 277 transformer cast coil US $54,000.00
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 RIVIERA 2500 3333 KVA 12470V CAST COIL TRANSFORMER US $22,500.00
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 OLSUN 1000 1333 KVA 4160 480Y 277 CAST COIL TRANSFORMER US $22,000.00
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 ABB NEMA 1 1500 KVA 3PH CAST COIL TRANSFORMER ABB510911 US $21,000.00
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 SOUTHERN TC 1500 KVA 4160V N3R TRANSFORMER COIL NO T4572 US $15,000.00
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 SIERRA 1333 1777 KVA DRY TYPE COPPER COIL TRANSFORMER US $10,750.00
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 MGM 500 KVA 12000V DRY TYPE COPPER COIL TRANSFORMER US $7,000.00
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 EBA 500 KVA 2400V DRY TYPE CAST COIL N3R TRANSFORMER US $5,500.00
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 LARKIN 75 KVA 2400 480Y 277 VAC COPPER COIL TRANSFORMER US $2,000.00
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 GE 125 KVA 480V DRY TYPE COPPER COIL TRANSFORMER 9T24C US $1,400.00
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 UNUSED DONGAN 75 KVA DIT N3R COPPER COIL TRANSFORMER US $1,270.00
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 WAGNER 75 KVA 2400 120Y 240 V COPPER COIL TRANSFORMER US $1,100.00
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 CRITTENDEN 45 KVA 480V DRY TYPE COPPER COIL TRANSFORMER US $1,050.00
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 Allen Bradley Current Transformer X 241563 with coil 75A86 5242 US $899.99
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 Allen Bradley 15KVA Single Phase Core and Coil Transformer US $495.00
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 INDUTTANZA TRIFASE 3 PHASE COIL TRANSFORMER US $450.00
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 GENERAL ELECTRIC 9T58K0074 20 KVA CORE COIL TRANSFORMER NEW SURPLUS US $355.50
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 GE Transformer 3KVA CoreCoil 9T58B0075 NIB US $250.00
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 Gomi Okuma Choke Coil E2530 254 032 Transformer 12A US $250.00
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 12000V 30mA Neon Transformer TESLA COIL JACOBs NEVER USED US $169.99
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 GE 9T58K4133 Core Coil 150kVA Transformer US $165.00
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 NIB CORE COIL TRANSFORMER 120 240 VOLTAGE CAT 9T58K2875 US $130.00
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 GE CORE COIL TRANSFORMER 9T58B0052 NEW IN BOX US $125.00
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 GE Core Coil Transformer 9T58L0045G09 NEW 1 phase 6P293 US $124.00
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 GE 050KVA 120x240V Core Coil Transformer 9T58K2873 US $119.99
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 G E CORE COIL TRANSFORMER 240V 9T58K0042 US $99.99
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 GE General Electric Core Coil Transformer 9T58K0050 NEW US $99.95
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 General Electric 9T58K2811 750KVA Core and Coil Transformer New Surplus US $99.00
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 GE CORE COIL TRANSFORMER CAT 9T58K0042 US $49.99
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 ACME TRANSFORMER TA 1 81217 MACHINE COIL TRANSFORMER US $49.99
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 GE Core Coil Transformer 9T58K2804 240 480V 120 240V US $49.99
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 FPE FEDERAL PACIFIC Transformer FB075JK Core Coil 75VA US $45.38
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 GE CORE COIL TRANSFORMER CAT 9T58K0045 KVA 0150 PH1 HZ60 US $45.00
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 GE General Electric Core Coil Transformer 9T58K2874 US $44.64
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 GE 9T58K2874 CORE COIL TRANSFORMER NEW IN BOX US $35.00
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 EIL Instruments Current Transformer Ratio 50002A coil SHL 501 02 inductor US $30.00
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 GE 05KVA Transformer 9T58B50 core and coil US $30.00
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 Allen Bradley 05KVA Transformer 1497 G BASX 3 N core and coil US $30.00
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 GE 075KVA Transformer 9T58B51 core and coil US $30.00
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 GE CORE AND COIL TRANSFORMER 9T58K2805 60HZ 1PH US $30.00
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 APEI 4KVA Transformer Core and Coil 766016 US $29.75
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 New General Electric Core Coil Transformer 9T58L2878 US $25.00
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 Square D 01KVA Transformer 9070E02D1 core and coil US $25.00
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 Square D 015KVA Transformer T150D1 core and coil US $25.00
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 ACME 015KVA Transformer TA 2 81212 core and coil US $25.00
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 Square D 015KVA Transformer E0 3D1 core and coil US $25.00
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 Square D 03KVA Transformer T300D1 core and coil US $25.00
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 GRAND TRANSFORMERS INC 209717 2 Coil WOW US $22.49
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 Hammond 05KVA Transformer MT50PG Core and Coil US $20.00
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 Square D 05KVA Transformer k50D1 core and coil US $20.00
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 APEI 63KVA Transformer Core and Coil 768014 US $19.50
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 GENERAL ELECTRIC 9T58K3164 60 HERTZ 240 480 VOLT PHASE 1 CORE COIL TRANSFORMER US $16.79
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High Voltage Transformer – Right Tool for the Electronic Industry
The Electronic industry today depends heavily on transformers. Today, there are customized varieties available to cater to special needs; the high voltage transformer is one of them. This type of transformer is used when heavy duty power source becomes an important prerogative for better productivity.
Field of Operation
The application areas of the heavy duty transformer are immense. Of these, power transformers are the most popular in the electronic industry. They allow the circuit designer to use any rail voltage they need for their high voltage circuit. These transformers today come in a wide variety from very large power grid type transformers down to very small high voltage trigger transformers that are used for lighting a flash lamp.
Distinguishing Traits
There are various factors that distinguish a high voltage transformer. It requires specialized winding techniques and specific high quality materials to produce this category of transformers. A quality manufacturer of high voltage transformer has the ability to manufacture them in capacity as high as 35lbs, or say approximately that of the average sized car battery. For heavy duty performance, it is important that these transformers are insulated properly and they do not breakdown under heavy duty load- this entails taking special care to ensure that the primary and the secondary of the transformer do not touch each other. Also, extra caution should be taken to make sure that even the secondary one does not touch the ground to get the best isolation solutions.
Manufacturing Procedure Used
In this part, we would specially consider the procedures used in getting the best high voltage or power transformer. Most manufacturers of these transformers make sure that they isolate them, but very few manufacturers know the correct winding technique for high voltage isolation. So, as a consumer you should be very careful while availing the services of one such manufacturer, even when you are opting for customized varieties. This includes the ability to wind on multi-section bobbins and multi-layer coil forms. Multilayer windings involve the use of Kapton film, Nomex, Teflon, and several other materials for effective insulation. Again, different procedures are used while making these transformers when inter-winding capacitance is a concern. In this method, a very specialized winding technique, the universal pi wind is used. Again, there are others that use a dielectric such as oil to isolate and cool the transformer.As a consumer, it is your exclusive prerogative to find manufacturers that help mitigate high voltage problems. Always choose for one that has the ability to encapsulate your required designs in high quality epoxies whether you are looking for high voltage transformer or power transformer.
About the Author
Custom Coils has over 40 years experience to writing about the high voltage transformer and the custom magnetic components like transformers, inductors, DC igniters, antennas and air coils, hydrogen coils etc.
Tesla coil transformer?
I am making a small Tesla Coil, but have a question regarding the transformer. Would it work to simply wind one myself with the correct winding ratio to get the voltage I want (around 7-10kv) or is it better to stick with a commercially available transformer? (I would rather not have to buy one) Any advice for winding a transformer?
I say buy one or find one that you can have for free.
Whenever I build a Tesla Coil, I consider the transformer the first line of protection for pretty much any electronic circuitry on the same mains line because it acts to isolate the Tesla coil. I would never operate a home built transformer off of mains power.
However, if your insistent on doing that, all I can do is advise you to get the resistance of your primary right, otherwise your transformer will quickly melt.
An easier solution would be to find and contact neon sign businesses around your area. When they have to discard an old (but not necessarily bad) transformer, it COSTS them money because the EPA requires special handling because some can contain hazardous materials. Explain what your doing and if youre lucky, youll find a tech who is open to giving you a few of their junk stock.
Phasing Neon Sign Transformers for Tesla Coil Use Part-2
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