Transformers

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Transformers | Choosing the right transformer
There are 5 main types of transformers. The differences between each transformer are related to the types of applications possible. Current transformers: these are transformers in which the secondary current is proportional to the primary current. They can be used with all low-frequency alternating currents. Power transformers: these are distribution transformers with a voltage of one phase higher than 1,000V. They are used to transport electricity over...
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current transformer
current transformer
1411 series

Primary voltage: 600 V

Our Bulletin 1411 Current Transformers (CTs) are low voltage transformers for various power measurement devices and applications, including protective relays, analog devices, transducers, and PowerMonitor™ ...

current transformer
current transformer
PGC-2000 series

Primary current: 200 A

The PGC-2056, which is manufactured by Littelfuse, is a current transformer that is an essential device to use in the POWR-GARD ground fault detection product line. It is made of a high-density metal which has repeatable ...

current transformer
current transformer
PGC-5000 series

Primary current: 30 A

PGC Current Transformers (CTs) have been specifically engineered to deliver precise results in low ground fault conditions. They are vital members of the POWR-GARD range of ground fault detectors. They are available with ...

electrical power supply transformer
electrical power supply transformer
Modicon AB series

Output power kVA: 0.03 kVA - 2.5 kVA
Primary voltage: 230 V - 400 V
Secondary voltage: 24 V

... temperature +40°C Benefits Bring energy to your automated systems! Phaseo is even more compactness and simplicity with 3 transformer offers to respond to every user requirement. New Universal double winding offer, ...

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Schneider Electric
isolation transformer
isolation transformer
122-6721

Output power kVA: 1.5 kVA
Primary voltage: 230 V
Secondary voltage: 230 V

... RS PRO portable isolation transformer can be used to isolate a standard European 230 V mains voltage supply. It has a high-quality design that’s light, robust and is made with your safety in mind. The separating transformer ...

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RS PRO
isolation transformer
isolation transformer
504-228

Primary voltage: 245, 230, 415, 400 V
Secondary voltage: 230 V
Frequency: 50 Hz - 60 Hz

... regulations Our Transformer provides high-quality safety and isolating properties for use in control circuits and general applications Exceptional low loss noise laminations characterising our Isolation Transformer The ...

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RS PRO
isolation transformer
isolation transformer
890-2869

Output power kVA: 16.3 kVA
Primary voltage: 415 V
Secondary voltage: 0 V - 470 V

... This model is part of RS PRO's series of professional 'Varivolt' transformers that come in a variety of current ratings and in both single and three-phase versions. These transformers are used for audio ...

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RS PRO
current transformer
current transformer
IMB

Primary voltage: 420 kV
Secondary voltage: 36 kV - 800 kV
Primary current: 0 A - 4,000 A

... customer-tailored solutions IMB oil-minimum current transformers are based on a tank type (hairpin) design and available with porcelain or silicone rubber insulators. Hitachi ABB Power Grids current transformers ...

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ABB AG
burner transformer
burner transformer
TZI, TGI

The ignition transformer model TGI from Elster is compatible with wall set up, complying to IP 65 protection standards. These transformers are ideal for ignition and control with a single electrode. Its ...

power transformer
power transformer

Output power kVA: 20,000 kVA - 40,000 kVA
Primary voltage: 15 V - 20 V
Secondary voltage: 15 kV - 20 kV

Frequency injection transformer in mineral oil, installed in the HVB/HVA source station outside: enables the injection of remote control signals. Main characteristics • Oil filled transformer ...

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Cahors
balun transformer
balun transformer
LD series

Balun is the component for converting balanced transmission line and unbalanced transmission line each other. Murata delivers high performance LTCC packaged product by multilayer ceramics integration technology.

pulse transformer
pulse transformer
786 series

The 786 series is a comprehensive range of general purpose pulse transformers. Common applications include line coupling, matching or isolating. The devices can also be used in small isolated power supplies and also as ...

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Murata Power Solutions
cast resin transformer
cast resin transformer

Core balance transformers protects or signals resources such as earth leakage protection relays. this transformer or toroid proposed by SOCOMEC meet requirements in terms of measurement sensitivity and ...

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SOCOMEC
isolation transformer
isolation transformer
PST10024

Primary voltage: 230, 115 V
Secondary voltage: 24 V
Secondary current: 4 A

The Safety isolating transformer of the PST100 series are powerful and robust transformers to power devices with low alternating input voltage. The PST10024 transforms AC line voltage into short circuit ...

isolation transformer
isolation transformer
PST10012

Primary voltage: 115 V - 230 V
Secondary voltage: 12 V
Secondary current: 8 A

The Safety isolating transformer of the PST100 series are powerful and robust transformers to power devices with low alternating input voltage. The PST10012 transforms AC line voltage into short circuit ...

isolation transformer
isolation transformer
SM91501ALO

Secondary voltage: 1,600 V

Working Voltage: 1600 VDC Hi-Pot: 4300 VDC or 3100 VAC Two channels with integrated choke Developed for use with Analog Device’s Model LTC6804/681X, NXP’s Model MC33771/33772 and Texas Instruments’ Model BQ79616

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BOURNS
isolation transformer
isolation transformer
PAD00 series

Electric power: 1 W
Primary voltage: 3.3 V - 5 V
Secondary voltage: 3.3 V - 15 V

Low profile and small size Designed to comply with IEC 62368 Functional insulation for 400 Vrms continuous operation voltage Operating temperature: -40 °C to +125 °C RoHS compliant Applications Isolated RS-485/RS-232 power supplies Industrial ...

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BOURNS
isolation transformer
isolation transformer
SM91502ALA

Secondary voltage: 1,000 V

First pin auto-termination Working voltage: 1000 VDC Hi-Pot: 4300 VDC Single channel with integrated choke Functional insulation AEC-Q200 compliant RoHS compliant* and halogen free**

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BOURNS
current transformer
current transformer
TDA060

Split Core Toroidal Transformer Ø60 for Type A-F Earth Leakage Relays

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FRER
current transformer
current transformer
TDA110

Frequency: 47 Hz - 450 Hz

Split Core Toroidal Transformer Ø110 for Type A-F Earth Leakage Relays

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FRER
current transformer
current transformer
TDA160

Frequency: 47 Hz - 450 Hz

Split Core Toroidal Transformer Ø160 for Type A-F Earth Leakage Relays

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FRER
current transformer
current transformer
CT 20 30 50 70 90

Primary current: 3,200 A

Protection & Measurement for Low Voltage - Up to 3200 A of primary current. - Transformers ratio …/5. - Terminal cover, metal brackets for fitting, bus-bar holders and DIN rail mounting accesories included. - Standards: ...

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FANOX ELECTRONIC
low-voltage transformer
low-voltage transformer
CT50 series

Protection & Measurement Transformers for Low Voltage Provided burden 15 VA. Transformer ratio …/5. Fixing base included.

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FANOX ELECTRONIC
current transformer
current transformer
CT series

... Measurement Transformers for Low Voltage. CT-1 and CTD-1 Toroidal transformers are specially designed to be used with ELR-B, ELR-3C, D30 and DM30 relays. The relay ensures the assembly sensitivity of ...

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FANOX ELECTRONIC
isolation transformer
isolation transformer

Electric power: 3,600, 2,000, 7,000 W
Primary voltage: 230, 115 V
Secondary voltage: 230, 115 V

Indispensable in professional marine energy systems. It prevents electrolytic corrosion and above all serves as a device to guarantee a safe electric system. Toroidal wound technology for quietness and high efficiency. Soft start circuitry ...

current transformer
current transformer
MCT 085

High-frequency current transformer for medium-voltage power cables The MCT 085 high-frequency current transformer (HFCT) is specifically designed for offline or online partial discharge (PD) measurement ...

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OMICRON electronics
measurement transformer
measurement transformer
MCT 120

Partial discharge measurements on power cables The MCT 120 high-frequency current transformer (HFCT) is specifically designed for periodic partial discharge (PD) measurement and diagnostics on high-voltage cable systems. ...

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OMICRON electronics
measurement transformer
measurement transformer
VBO3

Primary voltage: 0 V - 300 V
Secondary voltage: 0 V - 600 V
Frequency: 50, 60 Hz

Three-phase voltage transformer VBO3 is a three-phase voltage transformer with a transformation ratio of 1:2 and extends the range of application of a CMC up to 600 V (L-N). Main fields of application ...

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OMICRON electronics
current transformer
current transformer
TRMC series

Output power kVA: 0, 0.01 kVA
Primary current: 100 A - 3,000 A
Secondary current: 5 A

... Degree) - Tropicalization - Impossibility of tampering with the transformer, preventing any form of access to the internal elements. Applications Current transformers for energy meters. Used ...

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CIRCUTOR
current transformer
current transformer
SC3 series

Primary current: 125 A

Efficient current transformers that have been specially designed to be installed on top of a switch. The most important feature of these split-core transformers is that they are very easy to install. ...

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CIRCUTOR
instrument transformer
instrument transformer
TRM series

The TRM Series, manufactured by Circutor, is a current instrument transformer that is used to determine the measurement of rotating electric currents. This transformer is especially compressed in resin ...

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CIRCUTOR
current transformer
current transformer
CTA series

Output power kVA: 0 kVA - 0 kVA
Primary current: 1 A - 300 A
Secondary current: 5, 1 A

Winding primary current transformer Protection current transformer Fixing with DIN rail and wall mounting 6mmq terminals connection Small size High performance Maximum precision

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AB TRASMISSIONI SRL
current transformer
current transformer
TAM series

Output power kVA: 0 kVA - 0 kVA
Primary current: 40 A - 250 A
Secondary current: 5 A

Measurement current transformers for currents from TAM series Modular LV analog current transformers, 2 modules width, from DIN bar for currents

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AB TRASMISSIONI SRL
toroidal transformer
toroidal transformer
CTD series

Toroids for residual current relays CTD - CTD.A series Series of closed and/or openable toroids for measuring residual current. To be paired with the RD residual current relay.

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AB TRASMISSIONI SRL
test transformer
test transformer
P series

Electric power: 30 W - 1,600 W
Secondary voltage: 30 V - 900 V

... ) or when the load is of inductive kind (inductive voltage transformers). The system duty cycle can be freely chosen and is insured by adding radiators or forced oil-cooling to the transformers. These ...

flyback transformer
flyback transformer
FLYT series

Secondary voltage: 0 V - 12 V

Lvalue: Lmag = 6.3µH / Power: 5W 100KHZ / Turn-ratio: 10:3:7+4:10+4 Our Flyback Transformers for battery chargers are customizable. Suitable for EV/PHV AC/DC onboard battery chargers Multi outputs with reinforced ...

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PREMO
audio transformer
audio transformer
78 series

Electric power: 0.4, 0.05 W
Primary current: 1 mA - 31.6 mA

PICO surface mount units utilize materials and methods to withstand extreme temperatures of vapor phase, I.R., and other reflow procedures without degradation of electrical or mechanical characteristics. Specifications MIL-PRF-27: ...

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Pico Electronics
audio transformer
audio transformer
80000

Electric power: 0.125, 0.01, 0.015, 0.02 W
Primary current: 0.3 mA - 11.5 mA

PICO surface mount units utilize materials and methods to withstand extreme temperatures (220º C) of vapor phase, I.R., and other reflow procedures without degradation of electrical or mechanical characteristics. Specifications MIL-PRF-27: ...

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Pico Electronics
isolation transformer
isolation transformer
71003

Electric power: 0.062 W - 0.75 W
Primary current: 0.5 A - 31.6 A

PICO surface mount units utilize materials and methods to withstand extreme temperatures of vapor phase, I.R., and other reflow procedures without degradation of electrical or mechanical characteristics. Specifications MIL-PRF-27: ...

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Pico Electronics
power transformer
power transformer

... II is implemented, a power transformer with reinforced insulation can be used for energy storage in accordance with DIN EN 61 558-2-16. If no secure insulation is required, a cost-effective design for the power transformer ...

isolation transformer
isolation transformer
VGT series

Isolation transformers with high withstand voltages are required in the IGBT gate drive power supplies of motor inverters for xEVs. The products in this series successfully combine a shift to high coupling (low leakage) ...

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TDK Electronics Europe
isolation transformer
isolation transformer
MTS series

Electric power: 0.03 kVA - 0.25 kVA
Primary current: 0.08 A - 1.35 A

Transformers have to be flexible because different situations require different voltages. Murrelektronik's product range offers this flexibility, no matter if it's an isolation transformer, control transformer, ...

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MURRELEKTRONIK
isolation transformer
isolation transformer
P025 10W-50W

Electric power: 10 W - 50 W

P025 Planar Transformers (10W to 50W) Patented (U.S. PAT. 7,129,809) design with superior thermal management Rated power 10W-50W / Frequency range 300-500kHZ Surface mount (SMD) or through hole (TH) Topology - Forward ...

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StandexMeder Electronics GmbH
power transformer
power transformer
PQ20, PQ26, PQ32

Planar Inductors for PQ20,26,32 comes in sizes 0.4‐6.0μH, 80A max. When compared to equivalent wire wound transformer designs, Planar magnetics have better power density and performance. Across the world, Standex‐Meder, ...

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StandexMeder Electronics GmbH
power transformer
power transformer
CSB

Primary current: 20 A

The CSB is a custom current transformer that is manufactured by standex-Meder electronics. It is built with a primary and secondary winding whose controls are incorporated into a computer. This compact device is less ...

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StandexMeder Electronics GmbH
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How to choose this product
transformer

A transformer is an electrical component designed to convert voltage and alternating amperage values into higher or lower voltage and alternating amperage values.

Applications

Transformer applications are numerous. They are found in power distribution networks, AC/DC converters and device power supplies, as well as in electronic circuits, where they transform signals or isolate circuit parts.

Technologies

A transformer is composed of primary and secondary windings with different numbers of turns, each constituting a solenoid. These coils are magnetically coupled by the transformer's shell, or iron core.

How to choose

The desired transformation ratio determines the choice of model. The transferred energy quantities between the primary and secondary coils figure in choice of transformer size. The nature of the primary current (single-phase, three-phase) also helps in determining the appropriate transformer.

Advantages

- Excellent efficiency

Disadvantages

- Heavy
- Bulky
- Generates heat