Ultra-High-Voltage

UHV relevant Standards, Pre-Standards and Projects

One of the dilemmas facing governments and utilities today is how to supply large amounts of electrical energy for growing populations in a way that is both efficient and has a minimal impact on the environment. "Ultra high voltage" (UHV – defined as voltages of 1 000 kV AC or higher, and 800 kV DC or higher) offers the potential to meet this challenge. UHV is needed for two main reasons. The first is to deliver large quantities of power over very long distances with very little loss of power. The second is to deliver large quantities of power to cities without a proliferation of transmission lines. In cities where demand is growing but room for transmission lines is limited, this is critical because it means only one power line corridor is needed, not several.

Main areas of development in connection with this new technology are equipment reliability (protection of human life) and stability (continuation of power supply on line failure). New UHV-adapted transformers, switch disconnectors and other related equipment as well as UHV power transmission lines need to be developed. There are at present no International Standards for UHV, so they too must be prepared so as to ensure the safe and efficient use of this technology. It is a technical challenge for manufacturers, utilities and, ultimately, a regulatory issue for governments. IEC and CIGRE (International Council on Large Electric Systems) are the bodies responsible for technical specifications for this technology.

Following the first International Symposium on Standards for UHV Transmission, held in Beijing in July 2007, a Joint IEC/CIGRE Coordination Group (JICCG) was set up to define the future needs and scope in terms of standardization. At national level, these activities are coordinated in a working group within DKE/UK 432.2 (DKE/AK 432.2.3: „Ultra-Hochspannung“), in which some 20 representatives of industry, measurement and testing technology and the universities are actively engaged.

Contact person in DKE German Commission for Electrical, Electronic and Information Technologies of DIN and VDE* is:

*The DKE is the German body responsible for developing standards and safety specifications for the electrical engineering, electronics and information technology sectors. The Commission represents German interests in electrical engineering, electronics and information technology at regional and international level, and as a result is responsible for standards work in the relevant standards bodies (primarily CENELEC, ETSI and IEC).

 

Standard Title Status

IEC 60633:1998

Terminology for high-voltage direct current (HVDC) transmission

SC 22F:
To be revised
IEC/TR 60919-3: 1999-03
 Performance of high-voltage direct current (HVDC) systems -
Part 3: Dynamic conditions		 SC 22F: to be revised
IEC/TR 61803: 1999-02 Determination of power losses in high-voltage direct current (HVDC) converter stations SC 22F: to be revised
IEC 61954: 1999-09 Power electronics for electrical transmission and distribution systems - Testing of thyristor
valves for static VAR compensators (IEC 61954:1999 + Corr. 1999 + A1:2003)		 SC 22F:
to be revised
VDE 2004-01
IEC 61973 (IEC 22F/144/CD:2007) High voltage direct current (HVDC) substation audible noise, SC 22F: in progress VDE-Draft: 2008-01
IEC/PAS 61975: 2004-08

System tests for high-voltage direct current (HVDC) installations

 SC 22F: in progress VDE-Draft: 2008-10
IEC/PAS 62001: 2004-07 Technical guide/specification and design evaluation of a.c. filters for HVDC system SC 22F:
IEC/PAS 62344: 2007-05 General guidelines for the design of ground electrodes for HVDC links SC 22F:

IEC 62501:2009

Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission - Electrical testing

SC 22F
Gone to press
IEC/PAS 62543: 2008-03 High-voltage direct current (HVDC) transmission using voltage sourced converters (VSC) SC 22F: in progress (Further development of IEC/PAS 62543, Ed. 1) Call for Experts
IEC/PAS 62544: 2008-02 Active filters in HVDC applications SC 22F: in progress (Further development of IEC/PAS 62544, Ed. 1) Call for experts
IEC 60700-1 Ed. 1.2: 2008-11 Thyristor values for high voltage direct current (HVDC) power transmission–
Part 1: Electrical testing

SC 22F:
((Manuscript for EN 60700-1/A2:2008-12 has been submitted))
IEC 61245: 1993-10 Artificial pollution tests on high-voltage insulators to be used on d.c. systems TC 36:
IEC 62199 2004-05 Bushings for d.c. application SC 36A:
IEC/TS 60071-5 2002-06 Insulation co-ordination– Part 5: procedures for high-voltage direct current (HVDC) converter
TC 28:
IEC 61378-1 : 1997-09 Converter transformers–
Part 1: Transformers for industrial applications

TC 14:
In progress,
does not directly concern UHV
IEC 61378-2: 2001-02 Converter transformers–
Part 2: Transformers for HVDC applications
TC 14:
IEC 61378-3: 2006-04 Converter transformers–
Part 3: Application guide

TC 14:
does not directly concern UHV
60076-6: 2007-12 Power transformers -
Part 6: Reactors		 TC 14:
IEC 60038 Ed. 6.2:
2002-07 (IEC 60059 and IEC 60196)		 High Voltage Test Techniques –
IEC 60038: IEC standard voltages
FUTURE WORK		 TC 8: 2002-11 in progressA future amendment to IEC 60038 may be needed for UHV DC systems (800 kV DC). As no table exists for DC systems today, it would be necessary to create a new table for HVDC systems too. MT1 is waiting for more direction from TC8/WG2 or other relevant WG. ((Current-affairs Question: Horizontal standards?; FDIS-Stadium))
IEC 60060-1: 1989-11 High Voltage Test Techniques –
Part 1: General definitions and test requirements

TC 42:
In progress (MT 42-04, convenor Mr. Rungis / AU)
1) Second version of a CDV has been published in 06/2009 and accepted by the necessary majority of the TC 42.
FDIS is expected in Spring 2010.
2) According to a German Proposal, the WG 42-19 (Convenor: Prof. Gockenbach / DE) is preparing the "Adaptation of TC 42 Standards to UHV Requirements". Cooperation with CIGRE WG D1.36 "UHV Testing" is agreed.
IEC 60060-2 Ed.2: 1994-11 High Voltage Test Techniques –
Part 2: Measuring systems

TC 42:
In progress (MT 42-03, convenor Dr. Hauschild / DE),
1) CDV has been published in 03/2009 and is confirmed (21 countries in favour, 2 countries against). FDIS is expected in Spring 2010.
2) An amendment for UHV measurement will be a part of the WG 42-19 activities mentioned above.
IEC 60060-3: 2006-02 High Voltage Test Techniques –
Definitions and requirements for on-site tests		 TC 42: The present standard with its wide tolerances seems to be sufficient for the UHV range.
IEC 60270 Ed. 3: 2000-12 High Voltage Test Techniques –
Partial discharge measurement
 TC 42: An ammendment to this standard shall be prepared, the task should be extended to PD measurement on UHV equipment.
Draft IEC 62478:
PNW 42/198/NP: 2005-10		 High Voltage Test Techniques –
Measurement of partial discharge by electromagnetic and acoustic methods		 in progress, NP bei IEC gestartet.
There is a WG for this new Guide (No Standard !)
((Because of the PD signal-to-noise relation the VHF/UHF measuring methods become important for quality testing, too. It seems to be highly important to adapt the new standard IEC 62478 to such requirement.))
IEC 61083-1 Ed. 2: 2001-06 Instruments and software used for measurement in high-voltage impulse tests –
Part 1: Requirements for instruments

TC 42:
MT 42-16 (convenor: Mr. Hallstrom / Finland) is preparing a revision of this standard, relatively few points are related specifically to UHV.
IEC 61083-2 Ed. 1: 1996-07 Instruments and software used for measurement in high-voltage impulse tests –
Part 2: Evaluation of software used for the determination of the parameters of impulse waveforms		 TC42: The MT will publish a new CD in 04/2009. For the so-called test data generator, impulse shapes typically for UHV impulse testing must be considered in the revised standard.

IEC 61083-3

Teil 3: Software for digital recorders for measurements in tests with alternating and direct high-voltages and high-currents

TC 42:
WG 42-20 (convenor: Mr. Bergman / SE) has started preparing this standard which is especially important for UHV DC equipment. A part for the related digitizer hardware and instruments is to follow.
IEC 62475: (IEC 42/208/CD:2006) High current test techniques –
Definitions and requirements for high current measurement

TC 42:
In progress (WG 42-12, convenor: Mr. Bergman / SE)
CDV was published in 03/2009 and has meanwhile been agreed.
The FDIS is expected for spring 2010.

IEC 62271-XXX,
Series of standards, approx.
20 parts, including:

 High-voltage switchgear and controlgear –
Part XXX

TC 17, 17A, 17C:
Mainly AC equipment

IEC 62271-1

Part 1: Common specifications

IEC/SC 17A MT 34
17A/880/CD:2009-07,
inclusion of UHV voltages

IEC 62271-100

Part 100: Alternating current circuit-breakers

IEC/SC 17A MT 36
In progress, draft probably late 2009

Application Guide

Application Guide to IEC 62271-1 & IEC 62271-100

IEC/SC 17A MT 50
In progress, 1. meeting scheduled for 2009-09

IEC 62271-101

Part 101: Synthetic testing

IEC/SC 17A MT 28
In progress, 1. meeting scheduled for 2009-09

IEC 62271-102

Part 102: Alternating current disconnectors and earthing switches

IEC/SC 17A MT 49
work to start soon,
IEC/SC 17A MT 48:
Fast earthing switches for UHV

IEC 62271-110

Part 110: Inductive load switching

IEC/SC 17A MT 32
In progress, draft probably late 2009
 

IEC/TC 78: Live Working
„Non-contact voltage detectors"

Work due to start

 

Planned standardization topics

Standard Title Stand
 

Part 1: operator control system;

TC 57
SC 22F
 

Part 2: facilities for station control in AC and DC transmission system

TC 57
SC 22F
 

Part 3: facilities for electrode control in DC transmission system

TC 57
SC 22F
  Power electronics for electrical transmission and Part 4: protection facilities of DC system

TC 57
SC 22F
 

Part 5: fault locating devices for DC transmission lines

TC 57
SC 22F
 

Part 6: transient fault record system of converter stations;

TC 57
SC 22F
 

Part 7: information management substation for fault record protection

TC 57
SC 22F
 

Part 8: remote-control communication facilities

TC 57
SC 22F
 

Part 9: electric energy metering system.

TC 57
SC 22F