2477 - HellermannTyton · L1 L2 L3 L1 L2 L3 Aver. 1 81235 72.0 57.0 64.0 32.9 34.8 33.9 33.9 0.221...
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NEFI High Power Laboratory, P. O. Box 108, Sentrum, 3701 Skien | Stulenvegen 71, 3721 Skien, Norway Tel.: +47 35504290 - Fax.: +47 35504299 – www.nefilab.com 2477 Short-circuit withstand strength on steel cable ties type MBT xx UHD.
Transcript of 2477 - HellermannTyton · L1 L2 L3 L1 L2 L3 Aver. 1 81235 72.0 57.0 64.0 32.9 34.8 33.9 33.9 0.221...
NEFI High Power Laboratory, P. O. Box 108, Sentrum, 3701 Skien | Stulenvegen 71, 3721 Skien, Norway
Tel.: +47 35504290 - Fax.: +47 35504299 – www.nefilab.com
2477
Short-circuit withstand strength on steel cable ties type MBT xx UHD.
NEFI High Power Laboratory
Page No.: 2 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
CONTENTS Page No. Description of the test object 3 Test performed 3 Test procedure 3 Test results 3 Detailed test results 4 Circuit diagram 5 List of drawings 6 Drawings 7 Photographs 8 Oscillograms 11 Client’s representatives:
Mr. Jørn Klanderud, HellermannTyton AS, Oslo, Norway. Mr. Arnfinn Alexandersen, HellermannTyton AS, Oslo, Norway. Mr. Thibault Nativelle, HellermannTyton France, 78196 Trappes, France. Mr. Andy Dunkerley, Source, Plympton, U.K.
This NEFI report of performance replaces previously issued NEFI report of performance report no. 2462.
NEFI High Power Laboratory
Page No.: 3 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
Description of the test object The test objects were steel cable ties type MBT xx UHD, manufactured by HellermannTyton UK. MBT xx UHD is a double wrap tie, wrapped two times around the cables. Test performed The test was performed strictly according to the client’s instructions. The peak factor of the test current was based on IEC 61439-1. 1 short-circuit test was performed. Test procedure The test was performed in a three phase circuit. 3 x 300 mm2 cables were fixed to a cable ladder in a trefoil formation by means of the tested steel cable ties type MBT xx UHD. The length of the cables were 8 m, and the length of the cable ladder was 3 m. The cables were connected to L1, L2 and L3 of the supply circuit in one end by means of cable lugs. In the other end the cables were short-circuited by means of cable lugs connected to a 10 x 40 mm Cu bar. The steel cable ties were fixed on traverses of the cable ladder. The distance between the cable ties were 300 mm. Totally 8 identical cable ties were part of the test. See photo on page no. 8. The cable ladder was placed on wooden pallets and strapped to the floor. Test results The test objects were visually inspected after the test. No damages were observed on the test objects. See photos on page no 10. The test result is only valid for the tested items.
NEFI High Power Laboratory
Page No.: 4 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
Testing of short circuit capacity Test date: Test object: Condition before test: Test requirement:
2012-11-29. Steel cable ties. New and clean. Client’s instructions.
Technical data of test circuit Number of
phases Operating
frequency [Hz] Circuit
diagram Connections: Phase L1 = Cable Phase L2 = Cable Phase L3 = Cable 3 50 KA002000
Short circuit tests Supply circuit connected to: Cables. Short circuit connection: Cu bar.
Test No. Record No.
Peak currents [kApeak]
Short-time currents [kArms]
Dur-ation
[s] Remark
L1 L2 L3 L1 L2 L3 Aver.1 81235 72.0 57.0 64.0 32.9 34.8 33.9 33.9 0.221
Uncertainty of measurement less than ± 3 % Condition after test:
See page 3 for details.
NEFI High Power Laboratory
Page No.: 5 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
Language
No. of sheets
Sheet no.
Scale
Prepared
Revision Reference
Checked
Drawing no.
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Principle circuit diagram
Short circuit testKA002000
18. Aug. 2003Tor Bratsberg
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Laboratory Power Supply 3 ~ 17 kV 50 Hz
TRANSFORMER
RESISTANCE
TEST OBJECT
CURRENT SENSORS
VOLTAGE SENSORS
MAKING SWITCH
SAFETY SWITCH
R S T
REACTANCE
Fine wire fuse
VOLTAGE SENSOR
NEFI High Power Laboratory
Page No.: 6 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
NEFI High Power Laboratory
Page No.: 7 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
NEFI High Power Laboratory
Page No.: 8 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
Photo no. 1 (20126412_1.jpg) Test setup. 300 mm between the cable ties.
NEFI High Power Laboratory
Page No.: 9 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
Photo no. 2 (20126463_1.jpg) Test objects before the test.
Photo no. 3 (20126464_1.jpg) Test objects before the test.
NEFI High Power Laboratory
Page No.: 10 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
Photo no. 4 (20126466_1.jpg) Test objects after the test.
Photo no. 5 (20126467_1.jpg) Test objects after the test.
NEFI High Power Laboratory
Page No.: 11 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
0 60050 100 150 200 250 300 350 400 450 500 550ms50 ms/div
1
-1
kVoltUr
1
-1
kVoltUs
1
-1
kVoltUt
75
-75
kAmpIr
75
-75
kAmpIs
75
-75
kAmpIt
Plot id.: 00081235.000
Record performed:29. November 2012, 13:02:11 Record No.: 00081235
Peak and short-time current testClient: HellermannTyton ASTest object: Steel cable tiesCondition of test object: -Supply circuit connection: -Short circuit connection: -Laboratory test object id.: M001284-04Task no.: 2170Ambient temperature: 22 Deg. CSystem operator: Mr. Roger ReiersenRemarks: -
Main view
NEFI High Power Laboratory
Page No.: 12 of 12 Report No.: 2477
P. O. Box 108, Sentrum, 3701 SKIEN | Stulenvegen 71, 3721 SKIEN, Norway - Tel.: +47 35504290 - Fax.: +47 35504299
Peak and short-time current test
140 190145 150 155 160 165 170 175 180 185ms5 ms/div
75
-75
kAmp
Ir75 k/div
75
-75
kAmp
Is75 k/div
75
-75
kAmp
It75 k/div
Zoomed view
Measured relevant parameters Measurement view
Ir rms 32.9 k AmpIs rms 34.8 k AmpIt rms 33.9 k AmpI average 33.9 k AmpIr peak 72.0 k AmpIs peak 57.0 k AmpIt peak 64.0 k AmpUr-s rms 546. VoltUs-t rms 547. VoltUt-r rms 542. VoltU average 545. VoltDuration 221. m s
UrIr
Is
It
Us
Ut
Making switch Test Object
Ut-r
Us-t
Ur-s
Plot id.: 00081235.000
Record performed:29. November 2012, 13:02:11 Record No.: 00081235
