British Standards Institution

Source:: IEC
Committee:: GEL/50 - Low Voltage Direct Current and Low Voltage Direct Current for Electricity Access
Categories:: Information management | Standardization. General rules

Scope

This document presents a fault analysis of AC/DC hybrid electrical installations that use galvanically separating converter equipment, including distribution networks, and have a rated/nominal DC system voltage up to and including 1 500 V.

Purpose

The fault analysis described in this document is necessary in order to define the correct protective measures to be implemented in DC systems powered through a galvanically separate converter equipment

The analysis consists of the following qualitative evaluations:

1) Qualitative evaluation of fault currents

2) Qualitative evaluation of voltage rise against earth and possible overvoltages due to a fault.

3) Identification of quantities worth monitoring for protection purposes.

4) Evaluation of fault impact on power converters

Comment on proposal

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How important do you think standardization is in this area? *

Do you agree that a standard on this subject is feasible?: *

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Would you or your organization use the standard? *

Would you or your organization be prepared to participate in the development of the standard or to comment on the draft when it is available? *

Are you aware of any regulation, existing standards and other good practice information in this area in the UK (e.g. Industry codes of practice; company specifications, international or European Standards)? *

Would the development of a standard(s) in this area have a particular impact/relevance to SME, consumer, environmental or societal interests? *

Are you aware of any other organizations to which this proposal may be relevant? If so please provide details below. *

Additional comments on the scope or proposal:

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

17/04/2024

Proposal end date:

06/05/2024

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

IEC SYCLVDC/151/N Fault analysis in hybrid AC/DC systems with isolating converters

Scope

Purpose

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