BS EN IEC/IEEE 65700-19-03:2018

OVERVIEW:

What is BS EN IEC/IEEE 65700-19-03-Bushings for DC application about?

BS EN IEC/IEEE 65700-19-03 is an international standard on bushings for DC application.

BS EN IEC/IEEE 65700-19-03 applies to outdoor and indoor bushings of any voltage used on DC systems, of capacitance, graded or gas-insulated types for use as components of oil-filled converter transformers and smoothing reactors, as well as air-to-air DC bushings.

BS EN IEC/IEEE 65700-19-03 does not apply to the following:

• Cable terminations (potheads)
• Bushings for instrument transformers
• Bushings for test power supplies
• Bushings applied with gaseous insulation (other than air at atmospheric pressure) external to the bushing
• Bushings for industrial application
• Bushings for traction application
• Bushings for distribution class transformers

BS EN IEC/IEEE 65700-19-03 makes reference to IEC 60137 for general terms and conditions and defines the special terms used, operating conditions, ratings, test procedures as well as general mechanical and electrical requirements for bushings for DC application.

Who is BS EN IEC 62961-Bushings for DC application for?

BS EN IEC 62961 on bushings for DC application is relevant to:

• Manufacturers of bushings
• Manufacturers of electrical applications such as transformers, switchgears etc
• Electrical engineers
• Product design engineers
• Quality testing personnel

Why should you use BS EN IEC/IEEE 65700-19-03- Bushings for DC application?

A DC bushing is one that is applied to the valve winding side of a converter transformer, bushings applied to a DC smoothing reactor, wall bushing or a bushing applied to a converter valve.

BS EN IEC/IEEE 65700-19-03 provides guidance on electrical, mechanical and test requirements for bushings in DC applications. Moreover, a range of type, routine and special tests are also covered. Type tests include, but are not limit to:

• Dry power-frequency voltage withstand test
• Dry lightning impulse voltage withstand test (BIL)
• Electromagnetic compatibility tests (EMC)
• Temperature rise test
• Cantilever load withstand test

As a result, if you are a manufacturer, conformance and compliance with type, routine and special tests can help demonstrate that your products meet adequate levels of quality and performance required for safe and reliable use of the end-application. Ultimately, you can ensure that your bushings offer optimal electric insulation and are capable of withstanding voltage stresses.