Auto-transformers

22 companies | 63 products
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variable auto-transformer / isolation / encapsulated / closed
variable auto-transformer
8902816

Current: 20 A
Electric power: 4,800 W
Primary voltage: 240 V

... Professional range of enclosed variable transformers available in either single or three phase. The transformers are not designed to provide mains isolation but do operate at mains voltage. All of the ...

variable auto-transformer / isolation / encapsulated / closed
variable auto-transformer
8902819

Current: 10 A
Electric power: 2,400 W
Primary voltage: 240 V

... Professional range of enclosed variable transformers available in either single or three phase. The transformers are not designed to provide mains isolation but do operate at mains voltage. All of the ...

power auto-transformer / dry / toroidal / single-phase
power auto-transformer
HSG

Current: 0.8 A - 32 A
Primary voltage: 230 V
Secondary voltage: 0 V - 260 V

The HSG series voltage transformers are often built in test equipment or permanent installations. Output voltage is controlled with a large, slip-protected knob. Output voltage is increased linearly as the knob is turned ...

power auto-transformer / cast resin / for electronics / vacuum impregnation
power auto-transformer
VT-EN series

Electric power: 0.15 kVA - 3 kVA
Primary voltage: 110, 125, 230, 240 V
Secondary voltage: 110, 125, 230, 240 V

... ambient temperature 40 °C Degree of protection IP 00 Advantages Low weight and small size (compared to isolating transformers) Very high efficiency Very good moisture protection and low noise thanks ...

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Block Transformatoren-Elektronik
power auto-transformer / dry / industrial / vacuum impregnation
power auto-transformer
TAB 200

Electric power: 200 W
Primary voltage: 110, 130, 230, 240 V
Secondary voltage: 110, 130, 230, 240 V

Single-phase autotransformer - IP00 - U 0-110-130-230-240V - Power 200VA Electrical Characteristics Power (VA): 200 Primary Voltage (Vac): 0-110-130-230-240 Secondary Voltage (Vac): 0-110-130-230-240 Frequency ...

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EREA Transformers
power auto-transformer / dry / industrial / vacuum impregnation
power auto-transformer
BA 100

Electric power: 100 W
Primary voltage: 110, 230 V
Secondary voltage: 110, 230 V

Portable single-phase auto-transformer - U 110-230V - Power 100VA Electrical Characteristics Power (VA): 100 Primary Voltage (Vac): 110-230 Secondary Voltage (Vac): 110-230 Frequency (Hz): 50-60 Dielectric ...

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EREA Transformers
power auto-transformer / dry / industrial / vacuum impregnation
power auto-transformer
TAB 1000

Electric power: 1,000 W
Primary voltage: 110, 130, 230, 240 V
Secondary voltage: 110, 130, 230, 240 V

Single-phase autotransformer - IP00 - U 0-110-130-230-240V - Power 1000VA Electrical Characteristics Power (VA): 1000 Primary Voltage (Vac): 0-110-130-230-240 Secondary Voltage (Vac): 0-110-130-230-240 Frequency ...

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EREA Transformers
variable auto-transformer / single-phase
variable auto-transformer
RA1F250.031

Current: 3.1 A

... x172mm Weight approx: 8.4 kg An autotransformer is an electrical transformer with only one winding. In the autotransformer, parts of the same winding function as the primary and secondary ...

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Diametral a.s.
variable auto-transformer / single-phase
variable auto-transformer
RA1F250.100

Current: 10 A

Adjustable output voltage <5 ÷ 230 V. Output current 10 A. Analog voltage meter. Analog current meter. Output by socket. Operation via rotary voltage selector. Signaling of the switched-on state by an illuminated switch. Handles for easy ...

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Diametral a.s.
variable auto-transformer / single-phase
variable auto-transformer
RA1F250.200

Current: 20 A

Adjustable output voltage <5 ÷ 230 V. Output current 20 A. Analog voltage meter. Analog current meter. Output by power socket. Operation via rotary voltage selector. Signaling of the switched-on state by an illuminated switch. Handles ...

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Diametral a.s.
dry auto-transformer / single-phase
dry auto-transformer

Secondary voltage: 115 V - 400 V

• Compliant with standard EN 61558-2-13 • Standard voltages 115, 125, 220, 230, 380, 400 V • Can be reversed • Protection rating IP00 • Electrical protection rating I • Thermal insulation class B • Fixing brackets compliant with ...

isolation auto-transformer / dry / three-phase
isolation auto-transformer

Secondary voltage: 230, 400 V

• Compliant with standard EN 61558-2-13 • Standard voltages 230/400 V • Other voltages available on request • Can be reversed • Protection rating IP00 • Electrical protection rating I • Thermal insulation class B • Fixing brackets ...

power auto-transformer / dry / three-phase
power auto-transformer

Primary voltage: 400, 230 V
Secondary voltage: 400, 230 V

• Compliant with standard IEC 726 • Standard voltages 230/400 V • Other voltages available on request • Can be reversed • Ambient temperature 40 °C • Protection rating IP00 • Electrical protection rating I • Thermal insulation class F or H

electrical power supply auto-transformer / cast resin / open type / waterproof
electrical power supply auto-transformer
D0G series

Electric power: 13 kVA
Primary voltage: 140, 260 V

Characteristics: Type:Autotransformer Designed for: strict waterproof requirement Type of phase:single-phase Capacity: 5-50KVA Rated voltage:140V/260V Insulation:F/H Operating frequency:47.5-52.5Hz Protection ...

three-phase auto-transformer / power / cast resin / low-voltage
three-phase auto-transformer

Electric power: 0 W - 5,000,000 W

Applications - Voltage change - Motor starting - Net corrector (Compensating the overvolted or undervolted nets)

power auto-transformer / encapsulated / toroidal / single-phase
power auto-transformer

Current: 0.69 A - 48 A
Electric power: 160 W - 33,000 W
Primary voltage: 127, 230, 400, 480 V

... from zero to the maximun, with high resolution and a constant degree of intensity. Description and production series Autotransformer for voltage variation wound on toroidal core with graphite rollers. Single-phase ...

power auto-transformer / three-phase
power auto-transformer
NT40

Primary voltage: 500, 480, 440 V
Secondary voltage: 400 V

The AC NT 40 is an autotransformer manufactured by Kjellberg Finsterwalde. It a three-phase autotransformer used to link plasma cutting units with main voltage of 3 x 400 V to 3 x 500 V. In addition, ...

distribution auto-transformer / immersed / high-power / floor-standing
distribution auto-transformer

Electric power: 50,000 kVA - 1,000,000 kVA

... Three-phase autotransformers with taps at the common neutral end are the common links between the 400 kV and 275 kV `SuperGrid`networks. It is made with a common windind and a separate low voltage winding. Auto ...

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CG Power Systems
power auto-transformer / encapsulated / laminated / for printed circuit boards
power auto-transformer
TR 24 series

Single-phase reversible autotransformers, especially intended for use as a voltage adapter when an economical solution is required in applications where the galvanic isolation or attenuation of disturbances are not required. ...

distribution auto-transformer / immersed / high-power / floor-standing
distribution auto-transformer

Electric power: 1,200,000 kVA

In 2012, SPX Transformer Solutions began shipping Large Power Waukesha® Transformers from its expanded facility in Waukesha, Wisconsin. This 154,000 square foot expansion increased SPX Transformer ...

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SPX Transformer Solutions
electrical power supply auto-transformer / encapsulated / single-phase
electrical power supply auto-transformer

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Martignoni Elettrotecnica
dry auto-transformer / open type / single-phase
dry auto-transformer

Primary voltage: 0.5 V - 1,000 V
Secondary voltage: 0.5 V - 1,000 V

... It is possible to add cut-off fuses or even auto resettable thermal protectors that act if windings overheat and if the transformer temperature drops. After that it works again automatically. - Transformers ...

power auto-transformer / immersed / oil-immersed / single-phase
power auto-transformer

Motor Starting Applications These are auto transformers and reactors used in systems to restrain the start up current and allow a smooth start up in asynchronous motors of high power 1.) Auto ...

distribution auto-transformer / encapsulated / closed / floor-standing
distribution auto-transformer
T2530 series

Electric power: 1 kVA - 15 kVA
Primary voltage: 240 V
Secondary voltage: 120, 240 V

Auto-Transformers 240 Primary Volts - 120/240 Secondary Volts - 1Ø, 60Hz

power auto-transformer / cast resin / three-winding / floor-standing
power auto-transformer
DTSP

Current: 25, 63, 100 A
Electric power: 0.1 kVA - 10 kVA
Primary voltage: 50 V - 1,000 V

... point: 10% of nominal current For versions with increased climate resistance, the transformer is supplied with a specially insulated finish. The finish allows the transformer to be used in areas of high humidity.

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Trafomodern Transformatorengesellschaft
distribution auto-transformer / immersed / high-power / floor-standing
distribution auto-transformer

Electric power: 390,000 kVA - 1,000,000 kVA
Primary voltage: 161 kV

Product Item : Power Transformer (161kV grade and below) Specification : Max. actual performance capacity: 390MVA, Rated capacity: 1000MVA. Features: 1. Technical transfer, self-development and 3D software application. ...

distribution auto-transformer / cast resin / high-power / three-winding
distribution auto-transformer

... voltages, large auto-transformers are used to interconnect the 400kV-500kV systems with either the 230kV-275kV systems or 120kV-145kV systems (the exact values depend on the country being considered). ...

distribution auto-transformer / immersed / high-power / floor-standing
distribution auto-transformer

Electric power: 36 kVA - 63,000 kVA

... HV/MV transformers and MV/MV transformers are available upon request. The HV/MV model operate at a maximum of 170 kV and 63 mVA, while the MVMV operate at a maximum of 36kV and 63 MVA.

power auto-transformer / cast resin / for UPS / single-phase
power auto-transformer
IT Series

Electric power: 1,000 W - 300,000 W
Primary voltage: 100 V - 750 V
Secondary voltage: 100 V - 750 V

Simple concepts, effective solutions SALICRU has been designing and manufacturing low voltage electrical transformers and autotransformers for more than 50 years, for use as IT series standalone solutions, ...

power auto-transformer / dry / open type / single-phase
power auto-transformer
TE / TD

Transformers for switch cabinet installation TE / TD Auto-transformers (according to VDE 0550) for single-phase AC or three-phase current with 5 taps, mounting pads and connection terminals. The maximum ...