S-747 HV AC Drive Systems launched for public review

JIP33 has issued the S-747 HV AC Drive Systems specification for public review.  The consultation period will run for 6 weeks and will close on Sunday, 23 January 2022 at 23:00 GMT.

The purpose of this specification is to define a minimum common set of requirements for the procurement of high-voltage AC drive systems in accordance with IEC 61800-2, Edition 3.0, March 2021, Adjustable speed electrical power drive systems – Part 2: General requirements – Rating specifications for adjustable speed AS power drive systems, for application in the petroleum and natural gas industries.

The JIP33 standardized procurement specification follows a common document structure, normally comprising of four documents.  However as previously advised, going forward this has now been amended to five documents, with the Specification with Justifications now added, which together with the purchase order define the overall technical specification for procurement.  The Procurement Data Sheet consists of 13 tabs, all of which are separate data sheets covering different instrument types (for flow, level, pressure and temperature).

It has been developed in consultation with a broad user and supplier base to realize benefits from standardization and achieve significant project and schedule cost reductions.

The files are available to download at

Updates and future specifications will be announced via the project’s mailing list, LinkedIn and Twitter profile.

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