Dr. Stefan Göttlich, ABB AG, 2014-3-25 EU-TWN High Voltage ... · EU-TWN High Voltage Electrical Equipment management forum Presentation of IEC 62271-200 Edition 2.0 Dr. Stefan Göttlich,

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EU-TWN High Voltage Electrical Equipmentmanagement forumPresentation of IEC 62271-200 Edition 2.0

Dr. Stefan Göttlich, ABB AG, 2014-3-25

25 March 2014 | Slide 1

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§ Introduction into IEC 62271-200 Edition 2.0

§ Overview about clause 6

§ Mandatory type tests

§ Mandatory type tests where applicable

§ Optional type tests

§ Execution of type tests on metal-enclosed switchgear

§ Documentation of type test results

§ Transfer of test results from 50Hz to 60Hz

§ Transfer of obtained test results according IEC 62271-307

§ Current discussions in MT 14

§ Summary and Conclusion

Presentation of IEC 62271-200Overview


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AC metal-enclosed switchgear and controlgear for rated voltagesabove 1 kV and up to and including 52 kV

1. General2. Normal and special service conditions3. Terms and definitions4. Ratings5. Design and construction6. Type tests7. Routine tests8. Guide to the selection of switchgear and controlgear9. Information to be given with enquiries, tenders and orders10. Transport, storage, installation, operation and maintenance11. Safety12. Influence of the product on the environment

Presentation of IEC 62271-200Introduction into IEC 62271-200 Edition 2.0


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Presentation of IEC 62271-200Overview about clause 6


The type tests shall be made on representative functional units. Becauseof the variety of types, ratings and possible combinations of components, itis not practicable to make type tests with all the arrangements of metal-enclosed switchgear and controlgear. The performance of any particulararrangement may be substantiated by test data of comparablearrangements.

=> Guidance is given in TR IEC 62271-307 (Guide for the extension ofvalidity of type tests)

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Presentation of IEC 62271-200Mandatory type tests


Mandatory type tests:a) tests to verify the insulation level of the equipment (see 6.2);

b) tests to prove the temperature rise of any part of the equipment andmeasurement of the resistance of circuits (see 6.5 and 6.4);

c) tests to prove the capability of the main and earthing circuits to be subjectedto the rated peak and the rated short-time withstand currents (see 6.6);

d) tests to prove the making and breaking capacity of the included switchingdevices (see 6.101);

e) tests to prove the satisfactory operation of the included switching devicesand removable parts (see 6.102);

f) tests to verify the IP protection code (see 6.7.1);

g) tests to verify auxiliary and control circuits (see 6.10).

The mandatory type tests (not including items l, m and n) shall becarried out on a maximum of four test specimens.

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Presentation of IEC 62271-200Mandatory type tests, where applicable


Mandatory type tests, where applicable:h) tests to verify the protection of the equipment against mechanical

impact (see 6.7.2);

i) tests to verify the protection of persons against dangerous electricaleffects (see 6.104);

j) tests to verify the strength of gas-filled compartments (see 6.103);

k) tightness tests of gas- or liquid-filled compartments (see 6.8);

l) tests to assess the effects of arcing due to an internal arc fault (forswitchgear and controlgear classification IAC) (see 6.106);

m) electromagnetic compatibility tests (EMC) (see 6.9);

n) x-radiation test procedures for vacuum interrupters (see 6.11);

o) tests to verify the protection of the equipment against external effectsdue to weather (see 6.105);

p) dielectric tests on cable testing circuits (see 6.2.101).

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Presentation of IEC 62271-200Optional type tests

Optional type tests (subject to agreement betweenmanufacturer and user):q) tests to evaluate the insulation of the equipment by the measurement

of partial discharges (see 6.2.9);

r) artificial pollution tests for outdoor insulators (see 6.2.8).

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Presentation of IEC 62271-200Execution of type tests on metal enclosed switchgear


Mandatory type tests:a) tests to verify the insulation level of

the equipment (see 6.2)§ Clause 6.2 of IEC 62271-200 makes

reference to IEC 62271-1 clause 6.2;Some additional requirements are defined in -200

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Mandatory type tests:b) tests to prove the temperature rise of

any part of the equipment andmeasurement of the resistance ofcircuits§ The measured resistance across the complete

main circuit of an assembly of metal-enclosedswitchgear shall be the reference for the routinetest (refer to 7.3).

§ test shall be performed with those components orarrangements for which the most severeconditions are obtained.

§ It is admissible to simulate equivalent conditionsby means of heaters or heat insulation, if the testcannot be performed under actual conditions.

§ The temperature of the temporary connectionsshall be measured at the point where they leavethe enclosure and at a distance of 1 m externally.The temperature difference shall not exceed 5 K.

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Mandatory type tests:d) tests to prove the making and

breaking capacity of the includedswitching devices (see 6.101);

§ IEC 62271-100: test duty T100s, T100a,

§ IEC 62271-103: 10 CO operations with ratedmainly active load breaking current (Testduty 1). Test duty 5 according to class E1,E2 or E3, as applicable, unless the switchdoes not have a rated short-circuit makingcapacity.

§ IEC 62271-105: Test duties TDIsc, and thehighest value of TDItransfer and TDIto.

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Mandatory type tests:e) tests to prove the satisfactory

operation of the included switchingdevices and removable parts (see6.102);§ In addition to the mechanical type tests all

switching devices shall be operated 50 timesC-O when installed in the metal- enclosedswitchgear.

§ The normal manual operation handle shall beused to perform these tests. During the testsdouble the normal forces shall be employed,except that in the case of an interlockblocking the operating shaft, aprospective force of 750 N shall be appliedhalfway along the length of the gripping partof the operating handle.

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Mandatory type tests:f) tests to verify the IP protection

code (see 6.7.1);f) Reference is made to IEC 62271-1

subclause 6.7.1

g) tests to verify auxiliary and controlcircuits (see 6.10).f) Reference is made to IEC 62271-1

subclause 6.10.1

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Mandatory type test where applicable:l) tests to assess the effects of arcing due to an internal arc fault (for switchgear and controlgear classification IAC)


Presentation of IEC 62271-200Documentation of type test results

Type of Report

Copy Number

Number of Pages

Declaration of Test Object

Manufacturer and Client

Date of Test

Relevant Standards

Test result

Signatures, Seal and Dateof Issue

Accreditation accordingIEC/ISO 17025

General Remarks

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§ The majority of the Laboratories carrying out type tests are accreditedaccording IEC/ISO 17025

§ Within lLAC and EA it is insured that common criteria for laboratoryaccreditation are applied

§ In addition the leading laboratories carrying out type tests belong to the STLorganization following additional rules specified by the STL testingcommunity to harmonize testing

Presentation of IEC 62271-200Documentation of type test results


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§ The routine tests shall be made toensure that the manufactured product isin accordance with the equipment onwhich the type test has been carried out.

§ Production departments certifiedaccording to IEC/ISO 9001 are underpermanent supervision of the nationalaccreditation bodies (reaudit each 3years)

§ The named process ensures that=> a suited quality system is in place=> test equipment is calibratedfrequently and calibration is traceable tothe national normal

§ Routine test results are documentedand stored as quality documents

Presentation of IEC 62271-200Documentation of routine test results



Transfer of test results from 50Hz to 60Hz

Type test item/ Reference in Standard

Covered frequencies Conclusion

Dielectric TestPower frequency voltage testsAccording IEC 62271-1 table F1

45Hz to 65 Hz Tests carried out at 50Hz cover 60Hzapplication and vice versa

Temperature rise testAccording IEC 62271-1 clause 6.5.2Note 2

Test performed at 50Hz on switching devicesof the open type having no ferrouscomponents adjacent to the current carryingparts should be deemed to prove theperformance of the switching device whenrated at 60Hz, provided that thetemperature rise values recorded during thetests at 50Hz do not exceed 95% of themaximum permissible value

In general a guideline is given whichapplicability needs to be verified on theindividual product => Responsibility of themanufacturer

Short time withstand currentand peak withstand currenttestsSTL Guide to the interpretation of IEC62271-200, Edition 2.0, 2011-10

Short-time current and peak withstandcurrent tests performed at 50Hz or 60Hz,using a peak factor of 2,6, cover bothfrequencies for networks with d.c. timeconstants of 45ms or lower.Using a peak factor of 2.7 cover networkswith d.c. time constants higher than 45ms.

Peak factor to verify the dynamic behaviorneeds to be adapted accordingly.Thermal part with the same current flowduration covers frequency of 50Hz and60Hz

Presentation of IEC 62271-200Transfer of test results from 50Hz to 60Hz



Transfer of test results from 50Hz to 60Hz

Type test item/ Reference in Standard

Covered frequencies Conclusion

Basic short circuit tests forvacuum circuit breakersBased on test experience withvacuum interrupters

Vacuum interrupters are not sensitive to thedi/dt prior to the current interruption. 50Hztests are resulting in longer arcing timewhich is more demanding for vacuuminterrupters

Basic short circuit test duties carried out at50Hz cover the 60Hz applications

Capacitive switchingapplications(line charging, cable charging, singlecapacitor bank switching, back toback switching)

Rate of rise of the recovery voltage issteeper in 60Hz applications

Capacitive switching tests need to becarried out at 60Hz or with a higher powerfrequency voltage at 50Hz

Internal arc test Energy equivalent given by ∫is the relevant parameter which is notfrequency dependent

Therefore internal arc tests carried out at50Hz are valid for 60Hz and vice versa

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March 2014

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March 2014

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50

60

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Tem

pera

ture

rise

[K]

Measuring point

Comparison test results 50Hz and 60Hz - only phase L2

D01 (60Hz)

D02 (50Hz)

Limits

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Presentation of IEC 62271-200Transfer of test results according TR IEC 62271-307


HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –Part 307 Guidance for the extension of validity of type tests of AC metal-and

solid insulation enclosed switchgear and controlgear for rated voltagesabove 1kV and up to and including 52kV.

This part of IEC 62271 refers to prefabricated metal and solid insulation enclosed (bothhereinafter called enclosed) switchgear and controlgear assemblies for alternatingcurrent of rated voltages above 1 kV and up to and including 52 kV as specified in62271-200 and 62271-201 and other equipment included in the same enclosurewith any possible mutual influence.

The technical report can be used for the extension of the validity of type tests performedon one test object with a defined set of ratings to another switchgear assembly ofthe same family with different set of ratings or different arrangements. It supportsthe selection of representative test objects composed of functional units of a familyof switchgear and controlgear aimed at the optimization of type tests in order toperform a consistent conformity assessment.

This guide utilises a mixture of sound technical and physical principles, industryexperience and calculations to establish rules covering various design and ratingaspects.

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Presentation of IEC 62271-200Transfer of test results according TR IEC 62271-307


Test Report 1 Test Report 2

Testobject 1

Testobject 2

FU1 FU2 FU3 FU4 FU5 FU6 FU7Family (set of

functionnal units)

Homogeneousgroups

Mapping acc. tocharacteristic A

definition oftest object

Type test

definition oftest object

Type test

Mapping acc. tocharacteristic B

§ From a given switchgear family,

§ test objects can be selected

§ for each characteristic,

§ the test results of which wouldvalidate the complete family

§ with a minimum number of testobjects and

§ minimum number of type tests

Manufacturer‘s view

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§ According to the view of SC17C – MT14 in charge for themaintenance of IEC 62271-200 no significant changes regardingthe current version of the standard are required

§ Document 17C/579/RQ was presented at the IEC SC17C meetingin Delft.The conclusion was that „in principle the standard IEC 62271-200 is well understood and no major change is required,although some misinterpretations could arise“.

§ The MT team is proposing to issue an interpretation sheet and tokeep the stability date of the existing standard

§ A draft of the interpretation sheet was issued which will be send asa DC (Document for Comments) to the National Committees

Presentation of IEC 62271-200Current discussions in MT 14


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§ IEC 62271-200 applicable for AC metal-and solid insulation enclosedswitchgear and controlgear is frequently updated and reviewed byrepresentatives of utilities and manufacturers.

§ Therefore it is insured that the named standards reflects the state of thetechnology.

§ Type tests are carried out in accredited laboratories (IEC 17025) which areunder permanent supervision of the national accreditation bodies ensuring thecompetence in type testing and the compliance with the named standard.

§ TR IEC 622271-307 is intended to emphasize technical and physical principles,industry experience and calculations to establish rules to transfer obtained typetest results in order to perform a consistent conformity assessment.

§ Routine tests according to the requirements of IEC/ISO9001 ensure acontrolled process and the traceability of the obtained results and the usedtesting equipment

=> Based on the experience made in an international environment theabove mentioned procedure to qualify AC metal-and solid insulationenclosed switchgear and controlgear is fit for purpose

Presentation of IEC 62271-200Summary and Conclusion


Documents

Dr. Stefan Göttlich, ABB AG, 2014-3-25 EU-TWN High Voltage ... · EU-TWN High Voltage Electrical Equipment management forum Presentation of IEC 62271-200 Edition 2.0 Dr. Stefan Göttlich,