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The limit temperature emerges when adding the ambient temperature 40 Cthe admissible limit overtemperature and a safety addition.
The autotransformer is mechanically smaller and therefore it can be produced at lower costs. Medium-voltage transformers We make energy measurable and take care of your future www. Further regulations, as for example certain marine classifications, can be considered upon request. Vector Groups of Three-Phase Transformers The combination of the different connection systems for highvoltage winding and low-voltage winding is called vector group of the three-phase transformer.
Dry-type transformers This English-language version is derived from the original bilingual publication by leaving out.
Climasys Thermal Management System. Applications deviating from the standard programme are our strong point! In case of a construction with autowinding autotransformer the structural power is reduced. Quick Connect quick – simple – efficient www. The products are developed together.
A ein length of wire moves through a uniform magnetic field. Safe and reliable application of overcurrent protective devices based on these sections mandate that.
Other standards More information. Just visit our website: You wish for more information regarding Ruhstrat and our products?
With an ambient temperature above 40 C the transformer must not be charged with the full rated current, due to the possible ambient temperature [ C] insulant class B 1,0 0,96 0,92 0,88 0,82 insulant class F 1,0 0,97 0,94 0,90 0,86 insulant class Gde 1,0 0,98 0,95 0,92 0,90 table 4. The autotransformer has the same mode of operation as the transformer with separate winding, which is also called transformer and also allows to step up and down voltages, but no physical separation.
Specializing in the manufacturing of power transformers rating up to MVA and kv the More information.
New with UL-full test: A high quality standard is guaranteed by the use vdr high-quality materials and by the special competence of the employees. Start display at page:. The insulation structure allows the use of transformers in dry rooms. Plants conceived according to customer s requirements as single and special production with a power range from 0. Depending on the connection of the consumer to the winding s beginning or end of the low-voltage side phase displacements from 0 resp.
Every product can be tailor-made according to your special application. According to the quality standard DIN ISO the documentation of the measuring results is effected in appropriate test certificates. Insulation For long 0352 and high operation safety of a transformer it is very important that no part takes on an inadmissibly high temperature. Through this the transformers are protected against external influences.
The vector group consists of at least one capital letter and one small letter as well as of a reference number. The first reference number gives an information about the protection degree against touching and penetration of foreign bodies. High-speed spiral doors for deep-freeze applications.
Content Transformers for industrial applications Catalog Ed. Power transformers Special transformers Railway A leader in railway systems Our compact and low-weight transformers fully comply with the customer s specifications. For this reason, different kinds of protection are distinguished.