TRANSFORMERS
FOR DATA CENTERS
BETA TRANSFORMERS
Reliable Transformers
for Mission-Critical Data Centers
Data centers demand absolute reliability.
Our hermetically sealed oil and dry-type transformers are engineered for continuous load, minimal downtime, and maximum energy efficiency.
BENEFITS
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24/7 operation with minimal maintenance
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High short-circuit strength and efficiency
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Low losses and optimized temperature control
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Compact design for limited installation space
Powertransformer
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Hermetic Oiltransformer
Oiltransformer with Expansiontank
Fast delivery. Certified performance.
Fast Lead Times
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.
Special load-free tap changers and other cooling systems such as ONAF, OOAF, etc. can also be installed on customer request.
Hermetic transformers have no expansion tank and are completely filled with oil. The hermetic seal protects against atmospheric influences and is factory-adjusted.
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.
The oil in hermetic transformers does not come into contact with air, so there is no risk of absorbing air or moisture.
Hermetic transformers are particularly suitable for small spaces or placement in compact transformer stations. Hermetic transformers are fundamentally maintenance-free.
APPLICATION AREAS
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Hyperscale/Cloud providers
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Colocation & shared data centers
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Modular/Container/Edge sites
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Backup/UPS/Infrastructure layers
Each deployment has unique electrical, thermal, and scaling needs.
We adapt accordingly.
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.
In oil transformers with expansion tanks, the oil is constantly in contact with the surrounding air. Therefore, regular maintenance is important.
Technical Assurance
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We build with engineering rigor:
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Advanced insulation & dielectric materials
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Thermal modeling & cooling validation
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Short circuit, overload, transient, fault tolerance
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Material longevity, vibration resilience
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Remote monitoring & diagnostics integration
Our commitment to quality ensures that each transformer meets the highest international standards for durability and performance.
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.
The Challenge You Face
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Running a data center means facing relentless demands:
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Any downtime = massive cost & reputation damage
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Transformer lead times stretch to years
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Heat, scaling, and load changes push systems to limits
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Standards, efficiency, compliance are non-negotiable
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.
BETA OILTRANSFORMER
TESTS
The following national and international
quality tests are carried out in our accredited laboratory for oil transformers:
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Measurement of the winding resistance
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Measurement of voltage transformation factor and phase difference
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Resistance measurement on the insulator
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Measurement of short-circuit impedance and charging loss
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Measurement of decoupling losses and voltage
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Application of voltage tests
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Induced voltage test
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Partial discharge measurement
ROUTINE TESTS
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Testing the temperature rise
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Lightning strike test
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Measurement of the sound level
TYPE-SPECIFIC TESTS
SPECIAL TESTS
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Determination of the capacitance between the coils and the earthing via the coils
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Measurement of the zero-sequence impedance for 3-phase transformers
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Short-circuit resistance measurement
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Harmony test with current switched off
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Measurement of the insulation resistance from coil to earth
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Power factor measurement (tangent-delta measurement)
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Service life test of the boiler