Oil immersed transformers are used in power distribution or substations. Their cores and coils are immersed in oil to cool and insulate them. The oil circulates through the pipes in the coil and the pipes around the coil and core assembly, moving by convection.
Both oil immersed distribution transformer and pole mounted distribution transformer are designed for power centres,substations and network, also for pad mounted oil immersed power transformer, used in public distribution system, commercial building and industrial complexes −Oil preservation: hermetically sealed or conservator/free breathing
The transformer’s core-and-coil assembly consists of the core, windings, and connecting cables. High-quality drying and quick filling with insulation oil play a key role in extending the transformer’s service life. Siemens Energy employs the latest techniques. For example, in vacuum low-frequency plants (LFH – low-frequency heating), the process of drying the solid insulation is combined with vacuum drying of the windings through low-frequency heating. The active part is heated by applying low-frequency current (< 1 Hz) to the high-voltage windings with the low-voltage windings short-circuited. While still in the plant, transformers are filled with preheated insulation liquid which is absorbed by the insulation material, thus preventing the intake of oxygen.
provide design consulting service in accordance with customer requirements, and provide separate design scheme according to different customer markets to make products more competitive.
• We can provide on-site installation instructions, commissioning and after sales service. (Fee-for-service)
• You will get free lifelong technical advice from our highly qualified engineers. This will give you a lot of confidence when buying from our company.
• We guarantee the ongoing supply and preferential prices for spare and wearing parts.
• Our highly qualified team of service technicians are well equipped to keep your transformer operating at high efficience at all times.