Surge相關(guān)測(cè)試標(biāo)準(zhǔn)和設(shè)備

1、Surge相關(guān)測(cè)試標(biāo)準(zhǔn)和設(shè)備相關(guān)測(cè)試標(biāo)準(zhǔn)和設(shè)備 Surge的產(chǎn)生及要素的產(chǎn)生及要素 Surge的相關(guān)標(biāo)準(zhǔn)的相關(guān)標(biāo)準(zhǔn) a . ANSI.C/IEEE62.41 b. FCC Part 68 c. IEC 61000-4-5 d . UL 1449具體標(biāo)準(zhǔn)中的具體標(biāo)準(zhǔn)中的surgesurge要求要求儀器和能做的測(cè)試匯總儀器和能做的測(cè)試匯總 Surge的產(chǎn)生及要素的產(chǎn)生及要素IEC61000-4-5:Definition-A transient wave of electrical current,voltage,or power propagating along a line or a circ

2、uit and characterized by a rapid increase followed by a slower decrease.Switching transientsa) major power system switching disturbances, such an capacitor bank switching;b) minor switching activity near the instrumentation or load changes in the power distribution system;c) resonating circuits asso

3、ciated with switching devices, such as thyristors;d) various system fault Lighting transients:a) direct lighting stroke - injectb) indirect lighting stroke -inducec) lighting earth current flow common earth path discharge ANSI/IEEE C.62.41 Definition a transient wave of current ,potential,or power i

4、n an electric circuit. 1.Lightning 2.Switching transients Surge Characteristics Waveform characteristics: amplitude ,duration ,rise time ,frequency of ringing ,polarity ,energy delivery capability ,amplitude spectral density , position with respect to the phase of mains waveform ,frequency of occurr

5、ence.ANSI /IEEE C.62.411.WaveformRing waveHigh energy surgesFast transients 2.Location Categoriesa)outlets and long branch circuits,more than 10m from B,more than 20m from Cb)Feeders and short branch circuits;distributions panel devices;bus and feeder industrial plants.c)outside and service entrance

6、 ,run between meter and panel,overhead line to detached building,underground line to well pump Waveform for location A,B,CLocation Category100kHz Ring wave CombinationWave 5/50ns EFT 10/1000s Wave 5kHz Ring Wave AStandardNoneAdditional Additional Additional BStandardStandardAdditional Additional Add

7、itional CNoneStandardNoneAdditional Additional 0.5s/ 100k Ring WaveRise time :0.5s 0.15 sRinging frequency:100kHz 20kHz Ratio of second peak to first peak is between 40% and 110%,third to second,fourth to third between 40% and 80%.Rise time 10%90%First peak of OCV,SCC is selected ,tolerance 10%Vp/Ip

8、- 30 8 for location A, 12 3 for BNo short-circuit current waveform is specified. 1.2/50 s-8/20 s Combination waveOCV-Front time :1.2 s 0.36 s(1.67(t90%-t30%) ,Duration :50 s 10 s (t50%-t50%) SCCfront time 8 s (+1.0,-2.5) s (1.25(t90%-t30%)Duration:20 s (+8,-4) s (t50%-t50%)Source impedance 2.0 0.25

9、Traditionally test on the insulation. Additional surge test waveformEFT-rise time 5ns 1.5ns,duration 50ns 15nsIn a burst during 15ms 3msPeriod of repeated bursts is 300ms 60ms For peaks 2kV:5kHz 1kHz;for peaks2kV:2.5kHz 0.5kHzAmplitude defined by 50 source impedance between 1MHz100MHz10/1000 s waveO

10、CV:front time 10 s (+0,-5) s ,duration1000 s (+1000,-0) s SCC:front time 10 s (+0,-5) s ,duration1000 s 200 sResidential None Source impedanceCommercial 1.0 Upk 1.0 Industrial 1.3 Upk 0.25 5kHz Ring waveRise time :1.5 s 0.5 s ,frequency:5kHz 1kHzRatio of adjacent peak :60%80%Source impedance 5 2 Low

11、 None Source impedanceMedium 1.0 Upk 1 to 5 High 1.8 Upk 0.5 to 1 IEC61000-4-5 Definitions: front time virtual parameter Voltage 1.67*(30%90%) Current 1.25*(10%90%) Rise time 10%90%Combination wave 1.2/50s-8/20s,effective output impedance of 2 OCV:0.5kV4.0kV Tolerance 10% SCC:0.25kA2kA Tolerance 10%

12、Polarity: positive/negativePhase shifting 0360 versus ac phase angleRepetition at least 1 per min 10/700 sOCV:0.5kV4.0kV Tolerance 10%SCC:12.5A100A Tolerance 10%Polarity: positive/negativePhase shifting 0360 versus ac phase angleRepetition at least 1 per min Capacitive: couple capacitors 9F or 18F D

13、ecoupling inductance L=1.5mHInterconnection line Capacitive: couple capacitors 0.5F Decoupling inductance L=20mH FCC Part68 68.302 Environment Simulation.Metallic voltage surge: 800V,10-s maximum rise time/560-s minimum decay time, between (1)tip and ring of a 2-wire connection;(2)tip and ring ,tip1

14、 and ring 1 of a 4-wire connection;(3)tip and tip1;(4)other pairpeak current must not be limited to 100ALongitudinal voltage surge: 1500V, 10-s maximum rise time/160-s minimum decay time between each lead (tip ring tip1 ring1 M) and 1) earth, 2) leadspeak current must not be limited to 200A 1500V, 1

15、0-s maximum rise time/160-s minimum decay time between pairs of connection other than tip and ring;peak current must not be limited to 200A 2500V *3, 2-s maximum rise time/10-s minimum decay time between L and N of ac power linepeak current must not be limited to 1000A Ul1449 floating outputmeasurin

16、g equipment: oscilloscope ,current monitor ,high voltage probecheck the waveform:SCC: amplitude tolerance:+10% Duration time(50%50%) 1628s, rise time 1.25*(10%90%) 5.59sOCV: amplitude tolerance:+10%,-5% Duration time(50%50%) 4060s, rise time 1.67*(30%90%)0.841.56s EN55014-2中中surge不需要從低到高都打不需要從低到高都打

17、做做 surge的儀器的儀器 EMC Pro,E Cat,CE Master Ecat: E505A- FCC Part 68 Telecom & power lines160s 0-1.5kV,200A max.; 560s 0-800V,100A max;560s 0-800V,200A max;10s 0-2.5kV,1kA max E502B- CCITT Rec K.17.20.2110/700s OCV with two 25 outputs for true three-terminal surging of lines connected between instrument and telecom equipment .Also include a 0 output for use of with external coupler / decouplers for multi-line system. Additional