AC test system with transformer design WP Highvolt

AC test systems with transformer design, type WP, are used to test high voltage products (for example, high voltage cables, power transformers, gas-insulated switchgears), components (bushings, arresters), and insulating materials. They can be used in a variety of applications, such as

Routine testing, type testing, and in particular, wet testing
Indoor and outdoor testing
On-site testing

The transformer is installed in an insulating sheath and is oil-cooled. Individual transformers can be connected in parallel or series to increase the current or the voltage.

Application

• Routine testing, type testing
• Indoor and temporary outdoor testing
• On-site testing
• 
  

Benefits

• Space-saving design in a vertical
  cascade arrangement thanks to modular design
• Suitable for PD measurements due to very low
  internal PD level
• Suitable for short-lasting loads due to the test system’s short-term overload capacity

AC test system with metal tank transformers

The transformer is situated in an enclosed and earthed metal tank. This transformer is oil-cooled and can be optionally equipped with a suitable bushing (oil-to-air or oil-to-SF6).

Application

• Routine testing, type testing, and particularly suitable for continuous operation (for example, prequalification tests)
• Indoor and outdoor testing (also for extreme climate conditions)
• Wet, humidity, and pollution testing

Benefits

• Saves space in the test bay thanks to earthed metal tank enclosure
• Very well suited for short-lasting higher loads thanks to the system design allowing continuous operation and high currents (high power)
• Suitable for PD measurements due to low PD level
• Extremely high test voltage reachable due to cascade design
• Possible to test GIS components, because the metal tank transformer is often equipped with an oil-to-SF6 bushing

AC test system with GIS transformers

The transformer is designed as a GIS model and is therefore ideal for testing GIS/GIL components and switchgears.

Application

• Indoor testing
• On-site testing

Benefits

• Suitable for short-lasting loads thanks to the
  test system’s short-term overload capacity
• Ideal for PD measurements because the system is
  built entirely in GIS design
• Compact size/minimal weight
• Low connected load