IEC 61362-2024 PDF

Full title and description

IEC 61362:2024 — Guidelines to specification of hydraulic turbine governing systems. This international guide provides a unified set of technical data and specification templates to describe hydraulic turbine governing (governor) systems, define expected performance and support clear bidding and contracting between owners and suppliers.

Abstract

IEC 61362:2024 (3rd edition) presents the technical parameters, control functions and specification items necessary for turbine governing systems. It focuses on turbine-level control (speed, power, water-level and flow/opening control) for reaction and impulse turbines — including double-regulated machines — and covers means of actuation, safety devices for emergency shutdown and practical data sheets for tendering. The guide includes explanatory remarks on plant-level control and primary/secondary frequency control (informative), while acceptance tests and guarantee procedures are covered by other standards (notably IEC 60308).

General information

• Status: Published / Current (3rd edition).
• Publication date: 17 September 2024.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 27.140 Hydraulic energy engineering.
• Edition / version: Edition 3 (2024).
• Number of pages: 165.

Scope

The standard is restricted to the turbine governing level and provides guidance for specifying the functions, performance and interfaces of hydraulic turbine governors. It addresses control of speed, power, water level and discharge/opening for different turbine types, describes means of supplying actuation energy and safety/emergency shutdown devices, and supplies data-sheet templates to be completed by customer and supplier at project stages. It is not intended to provide exhaustive plant-level control design or to replace acceptance-test standards.

Key topics and requirements

• Specification of governor functions: speed, power, water-level and flow/opening control for reaction and impulse turbines, including double-regulated machines.
• Performance parameters and measurable guarantees for governing systems to be used in tender and contract documents.
• Guidance on sources and means of providing actuating energy for servomechanisms and hydraulic systems.
• Requirements and recommendations for safety devices and emergency shutdown arrangements.
• Informative notes on plant-level control coordination and on primary/secondary frequency control roles.
• Data-sheet templates and recommended fields to be filled in by customer and supplier at various project stages.
• Editorial and technical updates relative to the 2012 edition to align specification practice and incorporate parts of related specification guidance.

Typical use and users

Used by hydroelectric plant owners, generating utilities, turbine OEMs, control-system suppliers, consulting engineers, specification writers and procurement teams to produce clear technical specifications, evaluate bids and define contractual performance. Also used by engineering teams to align supplier deliverables with plant control requirements and by regulatory or certification bodies reviewing functional scope of governors.

Related standards

Notable related documents include IEC 60308 (acceptance tests and related test procedures for hydraulic machinery) and earlier editions of IEC 61362 (for traceability to prior contract clauses). The standard was developed by IEC Technical Committee TC 4 (Hydraulic turbines) and has been adopted/transposed in regional/national collections (EN/ CENELEC adoption as EN IEC 61362:2024 in applicable territories).

Keywords

hydraulic turbine, turbine governing, governor, turbine control, speed control, power control, flow control, water-level control, emergency shutdown, actuating energy, data sheet, specification guide, IEC 61362

FAQ

Q: What is this standard?

A: IEC 61362:2024 is the third edition of an IEC guide that provides recommended technical content and templates for specifying hydraulic turbine governing systems.

Q: What does it cover?

A: It covers turbine-level control functions (speed, power, water level, opening/flow), means of actuation, safety/emergency shutdown arrangements, and includes data-sheet templates to support tendering and contracting. It also contains informative remarks on plant-level control and frequency control roles.

Q: Who typically uses it?

A: Utilities, turbine manufacturers, control-system suppliers, consulting engineers, procurement/specification authors and test/acceptance teams use it to prepare specifications, evaluate bids and define contract performance for hydro turbines.

Q: Is it current or superseded?

A: It is current as published on 17 September 2024 and supersedes IEC 61362:2012.

Q: Is it part of a series?

A: It is part of IEC's body of standards for hydraulic turbines prepared by TC 4 and aligns with related standards (for example IEC 60308 for acceptance tests). Regional/adopted versions exist under the EN/ CENELEC system as EN IEC 61362:2024.

Q: What are the key keywords?

A: Hydraulic turbine, governing system, governor, turbine control, speed control, flow control, emergency shutdown, actuating energy, specification, data sheet.