toroidal current transformer
MRCurrenttransformerisaveryusefuldevice,itconvertshighACcurrenttosmalleasilymanageablevalue.If
currenttransformershavenobusbar,theyaremanufacturedwithoutprimarywinding.Insteadofthis,itispossibletoconstituteprimarywindingbypassingconductororbusbarinsidetorpidlycoreoftransformer.Furthermore,thesecondaryterminalsareunderatransparentsealablecovers.MRaremanufacturedintwotypesformeasuringandprotection.
Feature:
1.Theaccuracyclassisdesignedbythehighestpermissiblepercentagecurrent(ratio)errorattheratedcurrentperscribedfortheaccuracyclassconcerned.
2.TheElectronicTransformersthestandardsilliconsteelcoremodels,tapewrappingcurrenttransformer,lowcost.
3.Themeasuringcurrenttransformerscanbeusedwithorwithoutfootandplasticcover.
SPECIFICATION:
|
Primarycurrent: |
30A-5000A |
|
Secondarycurrent: |
5A,1A |
|
Standardapproval: |
IEC6044-1,EN60044-1,VDE0414-44-1,GB1208-2006 |
|
Maximumvoltage: |
|
|
Frequency: |
50/60Hz |
|
Ratedload: |
|
|
Class: |
|
|
Short-timethermalcurrent: |
Ith=60*ih |
|
Ratedsecuritycoefficient: |
FS<5 |
TechnicalParameters
|
ElectricalParameter |
||||
|
RatedFrequency |
50/60Hz |
RatedTestVoltage |
3KVAC(1MIN) |
|
|
RatedInput |
2000A-5000A |
Placeofinstallation |
Indoor |
|
|
Ratedshort-timethermalcurrent(Ith) |
60Ih |
Class |
||
|
Secondarycurrent |
5A1A |
Altitude |
<1000m |
|
|
Humidity |
<80% |
Ambienttemperature |
-5℃~40℃ |
|
|
Operatingtemperature |
-10℃~85℃ |
Housingself-extingshingclass |
VO |
|
TechnicalData
|
Model |
Nominalcurrentratio |
Burden(VA)Accuracy |
RatedVoltage(V) |
RatedFrequency(Hz) |
|
|
Class:0.5 |
Class1 |
||||
|
MR-125 |
2000/5A |
15 |
20 |
720 |
50/60 |
|
2500/5A |
15 |
20 |
720 |
50/60 |
|
|
3000/5A |
15 |
20 |
720 |
50/60 |
|
|
4000/5A |
20 |
30 |
720 |
50/60 |
|
|
5000/5A |
20 |
30 |
720 |
50/60 |
|
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