Description

Siemens Oil Insulated Voltage Transformers Air-insulated switchgear

Oil-insulated voltage transformers are used to convert high transmission line voltages (up to 550kV) to standardized low and easily measurable values, which will be used for metering, protection and control of the high voltage system. As such, the need for accurate and reliable voltage transformation is essential.

The reliability and security of Trench oil-insulated instrument transformers is based on over 100 years of innovation with oil-insulated units operating under a wide range of environmental conditions. Oil-insulated voltage transformers also ensure suitable electrical insulation between high voltage and low voltage measuring equipment.

The oil-immersed inductive voltage transformers are compliant to the latest international safety standard requirements in terms of explosion-proof, insulating material multiple chopped ageing, seismic qualification and extreme temperature conditions.

Modern production and testing facilities ensure reliable delivery and operation over the complete life time.

General Feature:

• Complete portfolio available from 72 to 550 kV
• Meet all lEC and ANSI metering and protection classes
• Rated primary Voltage up to 550 kV
• Rated Secondary Voltages 100 V, 100:i/3 V, 100:3 V, 110 V, 110:i/3 V, 110:3 V, …
• Suitable also for Une Discharge use
• Fully type tested according to international standards
• Special tests are also available to meet specific customer requirements

Oil Insulated Voltage Transformers Product Design:

• Oil/paper internal insulation
• External insulation with porcelain or composite insulator
• External part made of aluminum or stainless materials
• Sealed & Robust Construction
• Easy Customization to match all specific Customer requirements
• Easy Installation without special tools required.
• Available to withstand:
  • Effects of internal arc [according to IEC 61869 Standard]
  • Multichopped Test [according to IEC 61869 Standard]
  • Heavy seismic solicitations, according to IEC 62271, IEEE 693 and specific customers‘ requests [i.e. Chile ETG A.0.20]
• Hermetically sealed. A suitable Nitrogen cushion or lnox steel bellows allows the oil volume variation in every service conditions.

Siemens Transmission Products – Leader in innovations with comprehensive, connective and sustainable portfolio

Transmission products play a vital role in the energy value chain. Siemens Transmission Products provides all key elements including power transformers and distribution transformers as well as gas-insulated and air-insulated switchgear and components. Products are offered individually, bundled or with related engineering upgrade to systems. Our products offer low life cycle costs with maximum availability, highest efficiency and short commissioning times.

We are driving technology innovations not only regarding the performance of transmission products but also in the area of sustainability and eco efficiency. By merging physics and data we enable new products and applications: Sensformer and Sensgear. With our global factory network and leading innovations we provide the highest level of quality and reliability to our customers: TSOs, DSOs, power producers, EPCs and industrial companies.