SIST IEC/TR 61366-6:1999

Hydraulic turbines, storage pumps and pump-turbines - Tendering Documents - Part 6: Guidelines for technical specifications for pump-turbines

IEC TR 63017:2015(E) specifies a compensation method of Cu linewidth according to impeadance reduction by using noise suppression materials (hereafter referred to as NSMs) for FPCBs. This Technical Report presents an optimum result for maintaining a designated performance of FPCBs by using NSMs. It also indicates a measuring method for an impedance variation of FPCBs using NSMs with the prevailing TDR (time domain reflectometry) method. This method is resticted to measuring only the variation of an impedance value in accordance with the variation of the Cu linewidth by using NSMs for FPCBs. This report, however, neither determines nor indicates the structure or material of FPCBs.

Vodne turbine, akumulacijske črpalke in črpalne turbine – Razpisna dokumentacija – 6. del: Smernice za tehnične specifikacije črpalnih turbin

General Information

• Status: Published
• Publication Date: 31-Mar-1999
• ICS: 27.140 - Hydraulic energy engineering
• Technical Committee: IEHT - Electrotechnics - Hydraulic turbins
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Apr-1999
• Due Date: 01-Apr-1999
• Completion Date: 01-Apr-1999
• Ref Project: IEC TR 63017:2015 - Flexible printed circuit boards (FPCBs) - Method of compensation of impedance variations

Standards Content (Sample)

IEC TR 63017
®

Edition 1.0 2015-12
TECHNICAL
REPORT

colour
inside


Flexible printed circuit boards (FPCBs) – Method of compensation of impedance
variations
IEC TR 63017:2015-12(en)

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IEC TR 63017

®


Edition 1.0 2015-12




TECHNICAL



REPORT









colour

inside










Flexible printed circuit boards (FPCBs) – Method of compensation of impedance

variations



























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 31.180 ISBN 978-2-8322-3083-1



  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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– 2 – IEC TR 63017:2015 © IEC 2015
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Apparatus . 5
3.1 Time domain reflectometry . 5
3.2 Block diagram for impedance measuring . 5
4 Test specimen . 6
4.1 General . 6
4.2 Structure . 6
4.3 Test method . 7
4.4 Calculation . 8
5 Report . 9
Annex A (normative) Block diagram for impedance measuring with TDR . 10
Annex B (informative) Theoretical background . 11
Annex C (informative) Example of an impedance measurement with TDR . 12
Annex D (informative) Hand contact effect . 13
Annex E (informative) Test result . 14
E.1 Shield 1 FPCB . 14
E.2 Shield 2 FPCB . 15
Bibliography . 16

Figure 1 – TDR test system. 5
Figure 2 – Two types of impedance structure of FPCB . 6
Figure 3 – Schematic diagram of a test specimen . 7
Figure 4 – Impedance value of two type FPCB (bare and shield) . 8
Figure 5 – Compensation value (∆L) of the Cu line width for the shield FPCB . 9
Figure A.1 – TDR test system according to IPC 2141a-9-1 . 10
Figure A.2 – TDR test system according to Agilent TDR 54754A . 10
Figure B.1 – Two types of impedance structure of FPCBs . 11
Figure B.2 – Comparison of the impedance value of a bare FPCB versus a shield
FPCB . 11
Figure C.1 – Photographic view of the impedance measurement with TDR . 12
Figure D.1 – Effect of impedance variation by hand contact for bare FPCB . 13
Figure E.1 – Measurement result of the test specimen for shield 1 FPCB . 14
Figure E.2 – Measurement result of the test specimen for shield 2 FPCB . 15

Table E.1 – Cross-section of test specimen with using shield 1 FPCB . 14
Table E.2 – Cross-section of test specimen with using shield 2 FPCB . 15

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IEC TR 63017:2015 © IEC 2015 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FLEXIBLE PRINTED CIRCUIT BOARDS (FPCBs) –
METHOD OF COMPENSATION OF IMPEDANCE VARIATIONS

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC TR 63017, which is a technical report, has been prepared by IEC technical committee 91:
Electronics assembly technology.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
91/1283/DTR 91/1308/RVC

Full information on the voting for the approval of this technical report can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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– 4 – IEC TR 63017:2015 © IEC 2015
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.

---------------------- Page: 6 ----------------------
IEC TR 63017:2015 © IEC 2015 – 5 –
FLEXIBLE PRINTED CIRCUIT BOARDS (FPCBs) –
METHOD OF COMPENSATION OF IMPEDANCE VARIATIONS



1 Scope
This Technical Report specifies a compensation method of Cu linewidth according to
impeadance reduction by using noise suppression materials (hereafter referred to as NSMs)
for FPCBs.
This Technical Report presents an optimum result for maintaining a designated performance
of FPCBs by using NSMs. It also indicates a measuring method for an impedance variation of
FPCBs using NSMs with the prevailing TDR (time domain reflectometry) method. This method
is resticted to measuring only the variation of an impedance value in accordance with the
variation of the Cu linewidth by using NSMs for FPCBs. This report, however, neither
determines nor indicates the structure or material of FPCBs.
2 Normative reference
...

SLOVENSKI STANDARD
SIST IEC/TR 61366-6:1999
01-april-1999
9RGQHWXUELQHDNXPXODFLMVNHþUSDONHLQþUSDOQHWXUELQH±5D]SLVQDGRNXPHQWDFLMD
±GHO6PHUQLFH]DWHKQLþQHVSHFLILNDFLMHþUSDOQLKWXUELQ
Hydraulic turbines, storage pumps and pump-turbines - Tendering Documents - Part 6:
Guidelines for technical specifications for pump-turbines
Ta slovenski standard je istoveten z: IEC/TR 61366-6
ICS:
27.140 Vodna energija Hydraulic energy engineering
SIST IEC/TR 61366-6:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST IEC/TR 61366-6:1999

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SIST IEC/TR 61366-6:1999
TECHNICAL IEC
REPORT – TYPE 3
61366-6
First edition
1998-03
Hydraulic turbines, storage pumps
and pump-turbines –
Tendering Documents –
Part 6:
Guidelines for technical specifications
for pump-turbines
Turbines hydrauliques, pompes d’accumulation
et pompes-turbines –
Documents d’appel d’offres –
Partie 6:
Guide des spécifications techniques pour les pompes-turbines
 IEC 1998  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http: //www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
V
International Electrotechnical Commission
For price, see current catalogue

---------------------- Page: 3 ----------------------

SIST IEC/TR 61366-6:1999
– 2 – 61366-6 © IEC:1998(E)
CONTENTS
11
Page
FOREWORD . 4
Clause
0 Introduction to technical specifications . 7
1 Scope. 9
2 Reference documents . 9
3 Technical requirements. 9
3.1 Scope of work. 9
3.2 Limits of the contract . 10
3.3 Supply by Employer . 11
3.4 Design conditions . 11
3.5 Technical performance and other guarantees. 15
3.6 Mechanical design criteria . 18
3.7 Design documentation . 19
3.8 Materials and construction . 20
3.9 Shop inspection and testing . 21
4 Technical specifications for fixed/embedded components. 22
4.1 Spiral case . 23
4.2 Stay ring . 23
4.3 Foundation ring . 24
4.4 Draft tube and draft tube liner . 24
4.5 Pit liner. 24
5 Technical specifications for stationary/removable components . 25
5.1 Headcover and bottom ring . 25
5.2 Guide vanes . 26
6 Technical specifications for guide vane regulating apparatus. 26
6.1 Servomotors . 26
6.2 Connecting rods . 26
6.3 Regulating ring . 27
6.4 Guide vane linkage . 27
6.5 Guide vane overload protection. 27
6.6 Locking devices. 27
6.7 Synchronizing device (optional). 27
7 Technical specifications for rotating parts, bearings and seals. 27
7.1 Runner . 27
7.2 Main shaft . 28
7.3 Pump-turbine guide bearing . 28
7.4 Main shaft seal . 29
7.5 Standstill (maintenance) seal . 29

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SIST IEC/TR 61366-6:1999
61366-6 © IEC:1998(E) – 3 –
8 Technical specifications for thrust bearing. 29
8.1 Design data . 29
8.2 Bearing support . 29
8.3 Bearing assembly . 29
8.4 Oil injection pressure lift system. 30
9 Technical specifications for miscellaneous components . 30
9.1 Walkways, access platforms and stairs . 30
9.2 Lifting fixtures. 30
9.3 Special tools. 30
9.4 Standard tools . 31
9.5 Pump-turbine pit hoist. 31
9.6 Nameplate. 31
10 Technical specifications for auxiliary systems. 31
10.1 Bearing lubrication system . 31
10.2 Runner pressure balancing and pressure relief limes . 31
10.3 Pump-turbine pit drainage. 31
10.4 Lubrication of guide vane regulating system . 31
10.5 Draft tube air admission system . 31
10.6 Tailwater depression system (if applicable) . 32
11 Technical specifications for instrumentation . 32
11.1 Controls. 32
11.2 Indication. 32
11.3 Protection. 32
12 Spare parts. 32
13 Model acceptance tests . 33
14 Site installation and commissioning tests . 33
14.1 General . 33
14.2 Installation procedures. 34
14.3 Tests during installation . 34
14.4 Commissioning tests. 34
15 Field acceptance tests . 34
15.1 Scope and reports . 34
15.2 Inspection of cavitating pitting. 35

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SIST IEC/TR 61366-6:1999
– 4 – 61366-6 © IEC:1998(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HYDRAULIC TURBINES, STORAGE PUMPS AND PUMP-TURBINES –
TENDERING DOCUMENTS –
Part 6: Guidelines for technical specifications
for pump-turbines
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
report of one of the following types:
• type 1, when the required support cannot be obtained for the publication of an International
Standard, despite repeated efforts;
• type 2, when the subject is still under technical development or where for any other reason
there is the future but no immediate possibility of an agreement on an International
Standard;
• type 3, when a technical committee has collected data of a different kind from that which is
normally published as an International Standard, for example "state of the art".
Technical reports of types 1 and 2 are subject to review within three years of publication to
decide whether they can be transformed into International Standards. Technical reports of
type 3 do not necessarily have to be reviewed until the data they provide are considered to be
no longer valid or useful.
IEC 61366-6, which is a technical report of type 3, has been prepared by IEC technical
committee 4: Hydraulic turbines.

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SIST IEC/TR 61366-6:1999
61366-6 © IEC:1998(E) – 5 –
The text of this technical report is based on the following documents:
Committee draft Report on voting
4/110/CDV 4/122/RVC
Full information on the voting for the approval of this technical report can be found in the report
on voting indicated in the above table.
Technical Report IEC 61366-6 is one of a series which deals with Tendering Documents for
hydraulic turbines, storage pumps and pump-turbines. The series consists of seven parts:
IEC 61366-1: General and annexes (IEC 61366-1)
Part 2: Guidelines for technical specification for Francis turbines (IEC 61366-2)
Part 3: Guidelines for technical specification for Pelton turbines (IEC 61366-3)
Part 4: Guidelines for technical specification for Kaplan and propeller turbines (IEC 61366-4)
Part 5: Guidelines for technical specification for tubular turbines (IEC 61366-5)
Part 6: Guidelines for technical specification for pump-turbines (IEC 61366-6)
Part 7: Guidelines for technical specification for storage pumps (IEC 61366-7)
Parts 2 to 7 are "stand-alone" publications which when used with IEC 61366-1 contain
guidelines for a specific machine type (i.e. Parts 1 and 4 represent the combined guide for
Kaplan and propeller turbines). A summary of the proposed contents for a typical set of
Tendering Documents is given in the following table 1 and annex A. Table 1 summarizes the
arrangement of each part of this guide and serves as a reference for the various chapters and
sections of the Tendering Documents (see 3.2 of this part).
A bilingual edition of this technical report may be issued at a later date.

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SIST IEC/TR 61366-6:1999
Table 1 – Summary of guide for the preparation of Tendering Documents for hydraulic turbines, storage pumps and pump-turbines
CONTENTS OF GUIDE IEC 61366-1 TO IEC 61366-7 SAMPLE TABLE OF CONTENTS OF TENDERING DOCUMENTS (TD)
(Example for the Francis turbines; see 61366-1, annex A)
Part Clause Title Chapter Title
1 General and annexes 1 Tendering requirements
1– 2 Project information
1 1 Object and scope of this guide 3 General conditions
1 2 Reference documents and definitions 4 Special conditions
1 3 Arrangement of Tendering Documents 5 General requirements
1 4 Guidelines for tendering requirements 6 Technical specifications
1 5 Guidelines for project information 6.1 Technical requirements
1 6 Guidelines for general conditions, special conditions and general 6.1.1 Scope of work
requirements 6.1.2 Limits of the contract
6.1.3 Supply by Employer
1 Annexes 6.1.4 Design conditions
6.1.5 Performance and other guarantees
A Sample table of contents of Tendering Documents for Francis turbines 6.1.6 Mechanical design criteria
B Comments on factors for evaluation of tenders 6.1.7 Design documentation
C Check list for tender form 6.1.8 Materials and construction
D Examples of technical data sheets 6.1.9 Shop inspection and testing
E Technical performance guarantees 6.2 Technical specifications for fixed/embedded components
F Example of cavitation pitting guarantees 6.3 Technical specifications for stationary/removable components
G Check list for model test specifications 6.4 Technical specifications for guide vane regulating apparatus
H Sand erosion considerations 6.5 Technical specifications for rotating parts, bearings and seals
6.6 Technical specifications for thrust bearings
2 to 7 Technical specifications 6.7 Technical specifications for miscellaneous components
6.8 Technical specifications for auxiliary systems
2 Francis turbines 6.9 Technical specifications for instrumentation
3 Pelton turbines 6.10 Spare parts
4 Kaplan and propeller turbines 6.11 Model tests
5 Tubular turbines 6.12 Installation and commissioning
6 Pump-turbines 6.13 Field acceptance tests
7 Storage pumps

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SIST IEC/TR 61366-6:1999
61366-6 © IEC:1998(E) – 7 –
HYDRAULIC TURBINES, STORAGE PUMPS AND PUMP-TURBINES –
TENDERING DOCUMENTS –
Part 6: Guidelines for technical specifications
for pump-turbines
0 Introduction to technical specifications
The main purpose of the technical specifications is to describe the specific technical
requirements for the hydraulic machine for which the Tendering Documents (TD) are being
issued. To achieve clarity and to avoid confusion in contract administration, the Employer
should not specify anything in the technical specifications which is of importance only to the
preparation of the tender. Such information and instructions should be given only in the
instructions to Tenderers (ITT). Accordingly, the ITT may refer to other chapters and sections
of the Tendering Documents but not vice versa. As a general rule the word "Tenderer" should
be confined in use only to TD chapter 1 "Tendering requirements"; elsewhere the term
"Contractor" should be used.
Special attention should be given to items of a project specific nature such as materials,
protective coating systems, mechanical piping systems, electrical systems and instrumentation.
It is common for the Employer to use technical standards for such items which would apply to
all contracts for a particular project or projects. In this event, detailed technical standards
should be specified in TD chapter 5 "General requirements".
Technical specifications for the various types of hydraulic machines included in this guide are
provided in the following parts:
– Francis turbines (Part 2);
– Pelton turbines (Part 3);
– Kaplan and propeller turbines (Part 4);
– Tubular turbines (Part 5);
– Pump-turbines (Part 6);
– Storage pumps (Part 7).
The guidelines for preparation of pump-turbine specifications include technical specifications
for the following:
– Design conditions: Project arrangement, hydraulic conditions, specified conditions, modes
of operation conditions, generator characteristics, motor characteristics, synchronous
condenser characteristics, speed-up procedure for pump mode, transient behaviour data,
change-over times and characteristics, stability of the system, noise, vibration, pressure
fluctuations and safety requirements.
– Technical performance and other guarantees:
ypower
ydischarge
yspecific hydraulic energy (head)
yefficiency
ymaximum momentary pressure
yminimum momentary pressure
ymaximum momentary overspeed
ymaximum steady-state runaway speed
ycavitation pitting
yhydraulic thrust

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SIST IEC/TR 61366-6:1999
– 8 – 61366-6 © IEC:1998(E)
ychange-over times
ymaximum weights and dimensions for transportation, erection and maintenance
– Mechanical design criteria: design standards, stresses and deflections and special design
considerations (earthquake acceleration, etc.).
– Design documentation: Contractor’s input needed for the Employer's design, Contractor's
drawings and data, Contractor's review of the Employer's design and technical reports by
the Contractor.
– Materials and construction: material selection and standards, quality assurance procedures,
shop methods, corrosion protection and painting.
– Shop inspection and testing: general requirements and reports, material tests and
certificates, dimensional checks, shop assembly and tests.
– Fixed/embedded components: spiral case with compressible wrapping (if any), stay ring,
foundation ring, discharge ring, draft tube, draft tube liner, pit liner, and foundation plates
and anchorages.
– Stationary/removable components: headcover, bottom ring, facing plates, stationary
wearing ring, guide vanes.
– Regulating apparatus for guide vanes: servomotor, connecting rods, regulating ring (if any),
guide vane linkage system, guide vane overload protection and locking devices and
mechanical synchronizing device (if any).
– Rotating parts, bearings and seals: runner (impeller), main shaft, intermediate shaft (if any),
guide bearing with oil supply, oil/water cooler, main shaft seal, standstill (maintenance)
seal.
– Thrust bearing (if part of the hydraulic machine supply): bearing support, thrust block,
rotating ring, thrust bearing pads and pivots, oil sump with oil supply (common with guide
bearing, if any), oil/water coolers, instrumentation.
– Miscellaneous components: walkways, lifting fixtures, special tools, standard tools, turbine
pit hoist, nameplate, draft tube maintenance platform.
– Auxiliary systems: runner pressure balancing and pressure relief lines, turbine pit drainage
and other drainage systems; lubrication, draft tube air admission, tailwater depression,
cooling water supply for runner seal for blow-down operation.
– Instrumentation: controls, indication and protection.
– Spare parts: basic spare parts.
– Model acceptance tests: test requirements.
– Site installation and commissioning tests: installation procedures and commissioning tests.
– Field acceptance tests: scope of field tests, reports and inspection of cavitation pitting.
An example of the proposed table of contents for Tendering Documents for a Francis turbine is
given in annex A of IEC 61366-1. The example does not include technical specifications of the
control system, shut-off valves, gates motor-generator, pony motor, frequency converter for
starting into pump-mode, excitation system which may, at the Employer's option, be included in
the Tendering Documents for the pump-turbine or may be specified in separate documents.
Chapter 6 (technical specifications) of the Tendering Documents should be arranged as
follows:
6.1 Technical requirements;
6.2 Technical specifications for fixed/embedded components;
6.3 Technical specifications for stationary/removable components;
6.4 Technical specifications for guide vane regulating apparatus;
6.5 Technical specifications for rotating parts, guide bearings and seals;
6.6 Technical specifications for thrust bearing;
6.7 Technical specifications for miscellaneous components;

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SIST IEC/TR 61366-6:1999
61366-6 © IEC:1998(E) – 9 –
6.8 Technical specifications for auxiliary systems;
6.9 Technical specifications for instrumentation;
6.10 Spare parts;
6.11 Model acceptance tests;
6.12 Site installation and commissioning;
6.13 Field acceptance tests.
1 Scope
This technical report, referred to herein as the Guide, is intended to assist in the preparation of
Tendering Documents and tendering proposals and in the evaluation of tenders for hydraulic
machines. This part of IEC 61366 provides guidelines for pump-turbines.
2 Reference documents
IEC 60041:1992, Field acceptance tests to determine the hydraulic performance of hydraulic
turbines, storage pumps and pump-turbines
IEC 60193:1965, International code for model acceptance tests of hydraulic turbines
IEC 60308:1970, International code for testing of speed governing systems for hydraulic
turbines
IEC 60609:1978, Cavitation pitting evaluation in hydraulic turbines, storage pumps and pump-
turbines
IEC 60805:1985, Guide for commissioning operation and maintenance of storage pumps and of
pump-turbines operating as pumps
IEC 60994:1991, Guide for field measurement of vibrations and pulsations in hydraulic
machines (turbines, storage pumps and pump turbines)
1)
IEC 61362, Guide to specification of hydro-turbine control systems
ISO 3740:1980, Acoustics – Determination of sound power levels of noise sources – Guidelines
for the use of basic standards and for the preparation of noise test codes
3 Technical requirements
3.1 Scope of work
This subclause should describe the scope of work and the responsibilities which are to be
2)
conferred upon the Contractor. The general statement of scope of work presented in TD
section 2.1 (5.1 of IEC 61366-1) shall be consistent with what is presented here. In a similar
manner, pay items in the tender form, TD section 1.2 (4.2 of IEC 61366-1) should be defined in
TD subsection 6.1.1.
The scope of work should begin with a general statement which outlines the various elements
of the work including (where applicable) the design, model testing, supply of materials and
labour, fabrication, machining, quality assurance, quality control, shop assembly, shop testing,
spare parts, transportation to site, site installation, commissioning, acceptance testing,
warranty and other services specified or required for the items of work.
___________
1)
To be published.
2)
All references to Tendering Documents (TD) apply to annex A of IEC 61366-1.

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SIST IEC/TR 61366-6:1999
– 10 – 61366-6 © IEC:1998(E)
The layout of a pump-turbine may lead to a single or multistage machine. The latter can be of a
regulated or non-regulated type. Economical operation and operational flexibility of a pump-
turbine set may require additional equipment such as starting turbine, pony motor, and
frequency converter for starting in the pump-mode. It is also possible to consider the use of a
motor-generator with different rotational speeds for pump and turbine mode.
Multistage pump-turbines are not presented in this volume. For the description of additional
components refer to Part 7 (storage pumps).
The general statement should be followed by a specific and detailed list of the major items
which the Employer wishes to have as separate payment items in the tender form, for example:
Item Description
1 Four (4) vertical shaft, single stage, regulated Francis type pump-turbines, each with a
specified power of not less than 255 MW under a specified specific hydraulic energy of
3
4 719 J/kg (head of 481 m), pump discharge of 42,5 m /s with design tolerance of –5% to
+5 % at a specific hydraulic energy of 4 758 J/kg (pump head of 485 m);
2 Pump-turbine model testing;
3 Tools, slings and handling devices required for maintenance of the pump-turbines;
4 Transportation and delivery to site;
5 Site installation, commissioning and acceptance testing of the pump-turbines;
6 Preparation and submission of operation and maintenance manual and training of
Employer's operating and maintenance staff in the optimum use of these manuals; and
7 Spare parts required for operation and maintenance.
3.2 Limits of the contract
This subclause, making reference to the Employer's drawings and data, should give in detail
the limits of the contract considering the following:
– details of the design and supply limits of the high-pressure reference section;
– details of the design, location and responsibility for field connection of spiral case to
penstock or valve on high-pressure side;
– details and location of the low-pressure reference section;
– details and location of the downstream termination of the draft tube liner;
– details and location of pump-turbine valve and gate on high and low-pressure side;
– elevation of the upper pump-turbine shaft flange and/or distance to the pump-turbine
distributor centreline;
– responsibility for supply and installation of flange coupling bolts, nuts and guards at motor-
generator/pump-turbine coupling, including drilling jig;
– responsibility for supply and installation of bolts, nuts, gaskets at piping termination;
– termination of governor piping;
– termination of spiral case and draft tube dewatering piping;
– termination of spiral case air exhaust piping (if any);
– termination of pit drainage piping;
– termination of bearing lubricating oil piping;
– termination of piping (if required) to carry upper runner/impeller seal leakage to the draft
tube;
– termination of shaft seal piping (if any);
– terminations of piping external to that provided to enhance operating stability when the unit
is required to function outside the optimum operating conditions;

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SIST IEC/TR 61366-6:1999
61366-6 © IEC:1998(E) – 11 –
– termination of cooling water piping for bearings, shaft seals and runner seals;
– pump-turbine head cover mounted thrust bearing (if specified);
– termination points and junction boxes for wiring for power, control, indication, protection,
and lighting;
– compressed air for blow-down, service and other functions.
NOTE – Contract limits will change if other major items of equipment (such as control system, valves and gates,
motor-generators, excitation systems, control metering and relaying systems, switchgear, power transformer and
thrust bearing) are included with the pump-turbine equipment in a common
...