《BS-EN-61000-4-29-2001 IEC-61000-4-29-2000.pdf》由会员分享，可在线阅读，更多相关《BS-EN-61000-4-29-2001 IEC-61000-4-29-2000.pdf（22页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 61000-4-29: 2001 IEC 61000-4-29: 2000 Electromagnetic compatibility (EMC) Part 4-29: Testing and measurement techniques Voltage dips, short interruptions and voltage variations on d.c. input power port immunity tests The European Standard EN 61000-4-29:2000 has the status of a
2、 British Standard ICS 33.100.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 02:43:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61000-4-29:2001 This British Standard, having been prepared under the direction of t
3、he Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 July 2001 BSI 07-2001 ISBN 0 580 37205 7 National foreword This British Standard is the official English language version of EN 61000-4-29:2000. It is identical with IEC 610
4、00-4-29:2000. The UK participation in its preparation was entrusted by Technical Committee GEL/210, EMC-Policy, to Subcommittee GEL 1210/8, Low frequency disturbances, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretar
5、y. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-ref
6、erences Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be fou
7、nd in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standard
8、s are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for chang
9、e, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 19, and a back cover. The BSI copyright date displayed in this do
10、cument indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 02:43:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI (8523($1?67$1$5(1? 1250(?(8523e(11( (8523b,6 the test generator; the test set-up; t
11、he test procedure. The test described hereinafter applies to electrical and electronic equipment and systems. It also applies to modules or subsystems whenever the EUT (equipment under test) rated power is greater than the test generator capacity specified in clause 6. The ripple at the d.c. input p
12、ower port is not included in the scope of this part of IEC 61000. It is covered by IEC 61000-4-171) This standard does not specify the tests to be applied to particular apparatus or systems. Its main aim is to give a general basic reference to IEC product committees. These product committees (or use
13、rs and manufacturers of equipment) remain responsible for the appropriate choice of the tests and the severity level to be applied to their equipment. 1) IEC 61000-4-17, Electromagnetic compatibility (EMC) Part 4-17: Testing and measurement techniques Ripple on d.c. input power port immunity test Pa
14、ge 5 EN 61000429:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 02:43:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 07-2001 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 61
15、000. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 61000 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below.
16、For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. IEC 60050(161), International Electrotechnical Vocabulary (IEV) Chapter 161: Electro- magnetic compatibility IEC 61000-4-11,
17、 Electromagnetic compatibility (EMC) Part 4: Testing and measuring techniques Section 11: Voltage dips, short interruptions and voltage variations immunity tests 3 Definitions For the purposes of this part of IEC 61000 the definitions of IEC 60050(161) and the following definitions and terms apply.
18、3.1 EUT equipment under test 3.2 immunity (to a disturbance) the ability of a device, equipment or system to perform without degradation in the presence of an electromagnetic disturbance IEV 161-01-20 3.3 voltage dip a sudden reduction of the voltage at a point in the low voltage d.c. distribution s
19、ystem, followed by voltage recovery after a short period of time, from a few milliseconds up to a few seconds IEV 161-08-10, modified 3.4 short interruption the disappearance of the supply voltage at a point of the low voltage d.c. distributed system for a period of time typically not exceeding 1 mi
20、n. In practice, a dip with amplitude at least 80 % of the rated voltage may be considered as an interruption. 3.5 voltage variation a gradual change of the supply voltage to a higher or lower value than the rated voltage. The duration of the change can be short or long. 3.6 malfunction the terminati
21、on of the ability of an equipment to carry out intended functions, or the execution of unintended functions by the equipment. Page 6 EN 61000429:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 02:43:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 07-2001 4 General The operation of elec
22、trical or electronic equipment may be affected by voltage dips, short interruptions or voltage variations of the power supply. Voltage dips and short interruptions are mainly caused by faults in the d.c. distribution system, or by sudden large changes of load. Is also possible for two or more consec
23、utive dips or interruptions to occur. Faults in the d.c. distribution system may inject transient overvoltages into the distribution network; this particular phenomenon is not covered by this standard. Voltage interruptions are primarily caused by the switching of mechanical relays when changing fro
24、m one source to another (e.g. from generator set to battery). During a short interruption, the d.c. supply network may present either a “high impedance“ or “low impedance“ condition. The first condition can be due to switching from one source to another; the second condition can be due to the cleari
25、ng of an overload or fault condition on the supply bus. The latter can cause reverse current (negative peak inrush current) from the load. These phenomena are random in nature and can be characterised in terms of the deviation from the rated voltage, and duration. Voltage dips and short interruption
26、s are not always abrupt. The primary cause of voltage variations is the discharging and recharging of battery systems; however they are also created when there are significant changes to the load condition of the d.c. network. 5 Test levels The rated voltage for the equipment (UT) shall be used, as
27、a reference for the specification of the voltage test level. The following shall be applied for equipment with a rated voltage range: if the voltage range does not exceed 20 % of its own lower limit, a single voltage from the range may be used as a basis for test level specification (UT); in all oth
28、er cases, the test procedure shall be applied for both the lower and upper limits of the rated voltage range. The following voltage test levels (in % UT) are used: 0 %, corresponding to interruptions; 40 % and 70 %, corresponding to 60 % and 30 % dips; 80 % and 120 %, corresponding to ?20 % variatio
29、ns. The change of the voltage is abrupt, in the range of ?s (see generator specification in clause 6). The preferred test levels and durations are given in tables 1a, 1b and 1c. The levels and durations shall be selected by the product committee. Page 7 EN 61000429:2000 Licensed Copy: sheffieldun sh
30、effieldun, na, Mon Nov 13 02:43:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 07-2001 The test conditions of “high impedance” and “low impedance” reported in table 1b refer to the output impedance of the test generator as seen by the EUT during the voltage interruption; additional information is
31、 given in the definition of the test generator and test procedures. Table 1a Preferred test levels and durations for voltage dips TestTest level % UT Duration s Voltage dips 40 and 70 or x 0,01 0,03 0,1 0,3 1 x Table 1b Preferred test levels and durations for short interruptions TestTest conditionTe
32、st level % UT Duration s Short interruptions High impedance and/or Low impedance 0 0,001 0,003 0,01 0,03 0,1 0,3 1 x Table 1c Preferred test levels and durations for voltage variations TestTest level % UT Duration s Voltage variations 85 and 120 or 80 and 120 or x 0,1 0,3 1 3 10 x NOTE 1 “x” is an o
33、pen value. NOTE 2 One or more of the test levels and durations specified in each table may be chosen. NOTE 3 If the EUT is tested for short interruptions, it is unnecessary to test for other levels of the same duration, unless the immunity of the equipment is detrimentally affected by voltage dips o
34、f less than 70 % UT. NOTE 4 Shorter duration in the tables, in particular the shortest one, should be tested to be sure that the EUT operates as intended. Page 8 EN 61000429:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 02:43:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 07-2001 6
35、Test generator The following features are common to the generator for voltage dips, short interruptions and voltage variations, except where otherwise indicated. The generator shall have provisions to prevent the emission of disturbances which may influence the test results. Examples of generators a
36、re given in figure A.1 (test generator based on two power sources with internal switching) and figure A.2 (test generator based on a programmable power supply). 6.1 Characteristics and performances of the generator The test generator shall be able to operate in continuous mode with the following mai
37、n specifications: Output voltage range (Uo):up to 360 V Short interruptions, dips, and variations of the output voltage:as given in tables 1a, 1b and 1c Output voltage variation with the load (0 to rated current):less than 5 % Ripple content:less than 1% of the output voltage Rise and fall time of t
38、he voltage change, generator loaded with 100 ? resistive load:between 1 ?s and 50 ?s Overshoot/undershoot of the output voltage, generator loaded with 100 ? resistive load:less than 10 % of the change in voltage Output current (steady state) (Io):up to 25 A NOTE The slew rate of the voltage change a
39、t the output of the generator can range from a few V/?s up to hundreds V/?s, depending on the output voltage change. A test generator with Uo = 360 Vdc and Io = 25 A is recommended to cover the great number of test requirements. In case of systems with rated power exceeding the generator capability,
40、 the tests shall be performed on individual modules/subsystems. The use of a generator with higher or lower voltage/current capability is allowed provided that the other specifications (output voltage variation with the load, rise and fall time of the voltage change, etc.) are preserved. The test ge
41、nerator steady state power/current capability shall be at least 20 % greater than the EUT power/current ratings. The test generator, during the generation of short interruptions, shall be able to: operate in “low impedance” condition, absorbing inrush current from the load (if any), or operate in “h
42、igh impedance” condition, blocking reverse current from the load. The test generator, during the generation of voltage dips and voltage variations, shall operate in “low impedance” condition. Page 9 EN 61000429:2000 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 02:43:00 GMT+00:00 2006, Unco
43、ntrolled Copy, (c) BSI BSI 07-2001 6.1.1 Specific characteristics for the generator operating in “low impedance“ conditions Peak inrush current drive capability:50 A at Uo = 24 V 100 A at Uo = 48 V 220 A at Uo = 110 V Inrush current polarity:positive (towards the EUT), and negative (reverse from the
44、 EUT) For practical reasons, the peak inrush current drive capability of the generator, when set at output voltage higher than 110 V, may be reduced due to the increase in output impedance. However, the conditions specified in clause 6.2 for the peak inrush current capability margin shall be satisfi
45、ed. A generator with peak inrush current drive capability lower than specified above is allowed, provided that the conditions of 6.2 are satisfied. The output impedance of the test generator shall be predominantly resistive and shall be low even during the transition of the output voltage. Additiona
46、l information on the peak inrush current of the test generator is given in annex B. 6.1.2 Specific characteristics for the generator operating in “high impedance“ conditions (short interruption) The impedance at the output terminal of the generator, during a short interruption, shall be ?100 k?. The
47、 impedance shall be measured with the voltage level up to 3 ? Uo for both polarities. The generator shall be properly protected against transient overvoltages produced by the EUT during the test. In order to achieve the required immunity to surges, the output port of the generator can be protected b
48、y protective devices (e.g. diodes, varistors), with suitable clamping voltage in order to maintain the required output impedance. 6.2 Verification of the characteristics of the generator In order to compare the test results obtained from different test generators, the generator characteristics shall
49、 be verified as given below. The measurement uncertainty of the instrumentation shall be better than ?2 %. 6.2.1 Output voltage and voltage change The 120 %, 100 %, 85 %, 80 %, 70 % and 40 % output voltages of the generator shall conform to those percentages of the selected operating voltage UT: 24 V, 48 V, 110 V, etc. The values of all the voltages shall be measured at no load, and shall vary by less than 5 % when a load is applied. 6.2.2 Switching characteristics The generator switching characteristics sh