1、BRITISH STANDARDBS EN 60255-22-1:2008Measuring relays and protection equipment Part 22-1: Electrical disturbance tests 1 MHz burst immunity testsICS 29.120.70g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g5
2、5g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 60255-22-1:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2008 BSI 2008ISBN 978 0 580 58079 6National forewordThis British Standard is the UK implementation of EN 6
3、0255-22-1:2008. It is identical to IEC 60255-22-1:2007. It supersedes BS EN 60255-22-1:2005 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PEL/95, Measuring relays and protection systems.A list of organizations represented on this committee can be obt
4、ained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publication
5、Date CommentsEUROPEAN STANDARD EN 60255-22-1 NORME EUROPENNE EUROPISCHE NORM February 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 105
6、0 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60255-22-1:2008 E ICS 29.120.70 Supersedes EN 60255-22-1:2005English version Measuring relays and protection equipment - Part 22-1: Electrical disturbance tests - 1 M
7、Hz burst immunity tests (IEC 60255-22-1:2007) Relais de mesure et dispositifs de protection - Partie 22-1: Essais dinfluence lectrique -Essais dimmunit londe oscillatoire amortie 1 MHz (CEI 60255-22-1:2007) Messrelais und Schutzeinrichtungen - Teil 22-1: Prfungen der elektrischen Strfestigkeit - Prf
8、ung der Strfestigkeit gegen 1-MHz-Strgren (IEC 60255-22-1:2007) This European Standard was approved by CENELEC on 2008-02-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standa
9、rd without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other
10、 language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republi
11、c, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 95/204/CDV, future e
12、dition 3 of IEC 60255-22-1, prepared by IEC TC 95, Measuring relays and protection equipment, was submitted to the IEC-CENELEC Parallel Unique Acceptance Procedure and was approved by CENELEC as EN 60255-22-1 on 2008-02-01. This European Standard supersedes EN 60255-22-1:2005. The main differences w
13、ith respect to EN 60255-22-1:2005 are: this document is based on EN 61000-4-18; a capacitor was added for testing shielded communication lines when earthed at one end only; the test procedure for communication ports is clarified; the length of the communication cable for testing is fixed at 10 m; co
14、nnection to earth removed in Figure 4 for test generator terminal. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2008-11-01 latest date by which the national standards confl
15、icting with the EN have to be withdrawn (dow) 2011-02-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60255-22-1:2007 was approved by CENELEC as a European Standard without any modification. _ BS EN 60255-22-1:2008 2 CONTENTS 1 Scope and object4
16、 2 Normative references4 3 Terms and definitions .4 4 Test severity levels .6 5 Test equipment.6 6 Test set-up .9 7 Test procedure .10 8 Criteria for acceptance11 9 Test report12 Figure 1 Ports for measuring relays and protection equipment 6 Figure 2 Common mode test between each independent port an
17、d earth 7 Figure 3 Common mode test between each independent port and all other independent ports coupled to earth8 Figure 4 Differential mode test9 Figure 5 Test set-up for communication ports with shielded and unshielded cables .11 Table 1 Test voltages for the EUT ports6 Table 2 Criteria for acce
18、ptance.11 BS EN 60255-22-1:2008 3 Annex ZA (normative) Normative references to international publications with theircorresponding European publications13MEASURING RELAYS AND PROTECTION EQUIPMENT Part 22-1: Electrical disturbance tests 1 MHz burst immunity tests 1 Scope and object This part of IEC 60
19、255 is based on IEC 61000-4-18, referring to that publication where applicable, and specifies the general requirements for 1 MHz oscillatory wave immunity tests for measuring relays and protection equipment for power system protection, including the control, monitoring and process interface equipmen
20、t used with the relays and protection equipment. The objective of the tests is to confirm that the equipment under test will operate correctly when energised and subjected to repetitive damped oscillatory waves such as those originating from closing or opening circuit breakers or disconnectors in hi
21、gh voltage substations or power plants. The requirements specified in this standard are applicable to measuring relays and protection equipment in a new condition and all tests specified are type tests only. The object of this standard is to state: definition of terms used; test severity levels; tes
22、t equipment; test set-up; test procedure; criteria for acceptance; test report. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the re
23、ferenced document (including any amendments) applies. IEC 60255-6, Electrical relays Part 6: Measuring relays and protection equipment IEC 61000-4-18:2006, Electromagnetic Compatibility (EMC) Part 4-18: Testing and measurement techniques Damped oscillatory wave immunity test 3 Terms and definitions
24、For the purposes of this document, the following terms and definitions apply. BS EN 60255-22-1:2008 4 3.1 auxiliary equipment equipment necessary to provide the EUT with the signals required for normal operation and equipment to verify the performance of the EUT 3.2 auxiliary power supply port AC or
25、 DC auxiliary energising input of the EUT 3.3 burst a sequence of a limited number of distinct pulses or an oscillation of limited duration. IEV 161-02-07 3.4 communication port interface with a communication and/or control system, using low energy signals, permanently connected to the EUT 3.5 EUT E
26、quipment Under Test, which may be either a measuring relay or a protection equipment 3.6 functional earth port a port on the EUT which is connected to earth for purposes other than electrical safety 3.7 input port port through which the EUT is energised or controlled in order to perform its function
27、(s), e.g. current and voltage transformer, status (binary) inputs, etc. IEV 131-12-61, modified 3.8 output port port through which the EUT produces predetermined changes, e.g. contact, optocoupler, analogue outputs, etc. IEV 131-12-62, modified 3.9 port particular interface of the EUT with the exter
28、nal electromagnetic environment (see Figure 1) IEC 61000-4-18, 3.10 BS EN 60255-22-1:2008 5 Auxiliary power supply port Functional earth port Output port Input port Communication port EUT Figure 1 Ports for measuring relays and protection equipment 4 Test severity levels The test voltages for the ap
29、propriate ports of the EUT are shown in Table 1. Table 1 Test voltages for the EUT ports Test voltage (kV peak 10 %) Oscillation frequency 1 MHz Port under test Common mode test Differential mode test Auxiliary power supply 2,5 1 Input and output (see note) 2,5 1 Communication 1 0 NOTE In more sever
30、e environments a differential test voltage of 2,5 kV may be required for current and voltage transformer inputs. The 1 MHz test is not applicable to functional earth port. The 1 MHz test is not applicable to the communications port if interfacing with cables which are not permanently connected, or w
31、hose total length according to the manufacturers functional specification is always less than 3 m. 5 Test equipment The test generator, characteristics and performance are specified in IEC 61000-4-18. The coupling and decoupling networks shall be in accordance with the arrangements in Figures 2, 3 a
32、nd 4 of this part of IEC 60255. IEC 1978/07 BS EN 60255-22-1:2008 6 Ground reference planeEUT Insulating supportAuxiliary equipment L1 2 3 4 Coupling/ decoupling network LLLLLLLTest generatorCCIEC 1979/07 Key L high-frequency blocking inductor, 1,5 mH C high-frequency coupling capacitor, 0,5 F 1, 2,
33、 3, 4 EUT input and output ports Figure 2 Common mode test between each independent port and earth BS EN 60255-22-1:2008 7 EUT L C 1234L L L L L L L C C CC C C CGround reference planeInsulating supportAuxiliary equipment Coupling/ decoupling network Test generatorIEC 1980/07 Key L high-frequency blo
34、cking inductor, 1,5 mH C high-frequency coupling capacitor, 0,5 F 1, 2, 3, 4 EUT input and output ports Figure 3 Common mode test between each independent port and all other independent ports coupled to earth BS EN 60255-22-1:2008 8 EUT L1 2 3 4 LLLLLLLCCGround reference planeInsulating supportAuxil
35、iary equipment Coupling/ decoupling network Test generatorIEC 1981/07 Key L high-frequency blocking inductor, 1,5 mH C high-frequency coupling capacitor, 0,5 F 1, 2, 3, 4 EUT input and output ports Figure 4 Differential mode test 6 Test set-up The general test set-up is specified in IEC 61000-4-18.
36、All auxiliary equipment used to provide the EUT with signals for normal operation, and to verify the correct operation of the EUT, shall be decoupled, so that the test voltage does not affect the auxiliary equipment. The length of leads between the test generator and the coupling/decoupling network
37、shall be as short as possible. The test leads used between the EUT and the coupling/decoupling network shall not be longer than 2 m. The EUT and test leads shall be placed on an insulating support 0,1 m above the ground reference plane. The minimum distance between the EUT and all other conductive s
38、tructures BS EN 60255-22-1:2008 9 (for example the walls of a shielded room) except the ground reference plane beneath the EUT, shall be 0,5 m. The EUT shall be tested in its case with the cover in position. Where the EUT is exclusively mounted in a cubicle, the tests may be conducted with the EUT i
39、n the cubicle. The cubicle, test leads and interconnecting cables shall be placed on an insulating support, 0,1 m above the ground reference plane. All parts of the EUT intended to be earthed, shall be earthed. The test set-up for common and differential mode tests are shown in Figures 2, 3 and 4. F
40、or communication ports, the length of shielded or unshielded cable between EUT1 and EUT2, tested according to Figure 5, shall be 10 m. For cables with only one end of the screen earthed, the unearthed end of the screen shall be connected to the case of the EUT through a 0,5 F coupling capacitor. 7 T
41、est procedure The tests shall be carried out at the reference conditions given in IEC 60255-6. Time delay settings of the EUT shall be set to their minimum practical values as defined by their intended application. The tests shall be carried out with auxiliary energising quantities applied to the ap
42、propriate circuits equal to rated values. The values of the input energising quantities shall be within twice the assigned error of the transitional state both below and above the operating value. The test voltage shall be applied as follows: a) between each independent port and earth (common mode),
43、 connected as in Figure 2; b) between each independent port and all other independent ports coupled to earth where applicable (common mode), connected as in Figure 3; c) between terminals of the same port where applicable (differential mode), connected as in Figure 4; d) between the cable connection
44、s of communication ports and earth (common mode), connected as in Figure 5. The test shall be applied to individual communication cables, i.e. one cable tested at a time. The exception to this is where more than one cable is required to ensure correct operation of a communication circuit of the EUT.
45、 In such a case the minimum number of cables to ensure correct operation of the communication circuit shall be tested. Independent ports shall be stated by the manufacturer and included in the test report. The test voltage shall be applied separately with both polarities, for each combination of por
46、ts for a period of at least 2 s. Where the operating time of the EUT is longer than 2 s, the test voltage shall be applied for a period longer than the actual operating time of the EUT. The minimum time interval between two successive tests shall be 1 s. BS EN 60255-22-1:2008 10 Ground reference pla
47、neInsulating supportTest generatorEUT2Insulating supportCable 1 (shielded) 0,5 F10 mEUT1 Cable 2 (shielded) Cable 3 (unshielded) IEC 1982/07 Figure 5 Test set-up for communication ports with shielded and unshielded cables 8 Criteria for acceptance The criteria for acceptance shall be as given in Tab
48、le 2. The applicable functions shall be monitored during the test. The EUT has passed the 1 MHz oscillatory wave immunity test if it fulfils the criteria for acceptance according to Table 2 and, after the tests have been completed, still complies with the relevant performance specification. Table 2
49、Criteria for acceptance Function Criteria for acceptance Protection Normal performance within the specification limits. Command and control Normal performance within the specification limits. Measurement Temporary degradation during the test, with self-recovery at the end of the test. No loss of stored data. Integral human-machine interface and visual alarms Temporary degradation or loss of function during the test, with self-recovery at t
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