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OIL TRANSFORMERS

BETA OIL TRANSFORMERS

FULL POWER UNDER

ALL CONDITIONS

Our oil-immersed transformers comply with international standards and, where applicable, technical customer requirements.

They are available in hermetically sealed versions,
as transformers with expansion tanks, with or without distribution systems and as medium and high-power transformers.

OIL TRANSFORMER TYPES

  • Distribution Transformers

  • Transformers for Solar and Wind Parks

  • Earthing Transformers

  • Autotransformers

  • Dual Voltage Transformers

  • Rectifier Transformers

  • Shunt Reactors

  • Traction Transformers

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Powertransformer

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Hermetic Oiltransformer

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Oiltransformer with Expansiontank

IN SEALED DESIGN

Hermetic Transformers

PRODUCT DESCRIPTION

6.3 MVA

Megavoltamperes

Hermetic oil transformers are made with a power of 6.3 MVA and a network voltage of up to 36 kV. Three-phase, oil-cooled standard transformers (ONAN) are available with internal (plug-in type) or external porcelain insulators.

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Special load-free tap changers and other cooling systems such as ONAF, OOAF, etc. can also be installed on customer request.

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Hermetic transformers have no expansion tank and are completely filled with oil. The hermetic seal protects against atmospheric influences and is factory-adjusted.

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The elastic boiler tank with its corrugated walls controls the thermal expansion of the oil. These corrugated walls serve both for cooling and provide additional volume for the expansion of the oil.

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The oil in hermetic transformers does not come into contact with air, so there is no risk of absorbing air or moisture.

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Hermetic transformers are particularly suitable for small spaces or placement in compact transformer stations. Hermetic transformers are fundamentally maintenance-free.

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APPLICATION AREAS

  • MV/LV Transformer Stations

  • Factories

  • Construction Sites

  • Urban Distribution Systems (Pole or Box)

  • Irrigation Projects

  • Industrial Zones

  • Power Plants

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Our hermetic oil transformers are specially designed to ensure maximum operational efficiency and outstanding performance.

Oiltransformer with Expansion Tank

Oiltransformer with Expansion Tank

PRODUCT DESCRIPTION

20 MVA

Megavoltamperes

Oil transformers with expansion tanks are made with a power of 20 MVA and a network voltage of up to 36 kV. Three-phase oil-cooled standard transformers (ONAN) are available with internal (plug-in type) or external porcelain insulators.


Auf Kundenwunsch können auch spezielle lastfrei laufende Stufenschalter und andere Kühlsysteme eingebaut werden wie z.B. ONAF, OOAF, etc.

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In oil transformers with expansion tanks, the oil is constantly in contact with the surrounding air. Therefore, regular maintenance is important.

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APPLICATION AREAS

  • Factories

  • Construction Sites

  • Urban Distribution Systems (Pole or Box)

  • Irrigation Projects

  • Industrial Zones

  • Power Plants

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Our commitment to quality ensures that each transformer meets the highest international standards for durability and performance.

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Oiltransformer

Powertransformer

PRODUKTBESCHREIBUNG

400 MVA

Megavoltampere

330 kV Class

max.

rated voltage

Power oil transformers are manufactured according to
international standards such as IEC, IEEE, etc., according to customer requirements. They have a power range from 5 MVA to 400 MVA and mains voltages up to 330 kV.
Single-phase and three-phase transformers are available as customised products with ONAN, ONAF or ODAF cooling and with or without load-free on-load tap-changers.

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Areas of application

  • Long-distance power lines

  • Industrial plants

  • Power stations

  • Internal power supply

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Our power transformers are specially developed for

large-scale power transmission applications and ensure maximum reliability and efficiency in high-voltage grids.

These oil-filled transformers are designed to withstand extreme operating conditions, which is ideal for use in power stations,

 substations and large industrial plants.

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BETA OILTRANSFORMER

TESTS

The following national and international
quality tests are carried out in our accredited laboratory for oil transformers:

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  1. Measurement of the winding resistance

  2. Measurement of voltage transformation factor and phase difference

  3. Resistance measurement on the insulator

  4. Measurement of short-circuit impedance and charging loss

  5. Measurement of decoupling losses and voltage

  6. Application of voltage tests

  7. Induced voltage test

  8. Partial discharge measurement

ROUTINE TESTS

  1. Testing the temperature rise

  2. Lightning strike test

  3. Measurement of the sound level

TYPE-SPECIFIC TESTS

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SPECIAL TESTS

  1. Determination of the capacitance between the coils and the earthing via the coils

  2. Measurement of the zero-sequence impedance for 3-phase transformers

  3. Short-circuit resistance measurement

  4. Harmony test with current switched off

  5. Measurement of the insulation resistance from coil to earth

  6. Power factor measurement (tangent-delta measurement)

  7. Service life test of the boiler

Contact us for more information!

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Type of request
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