Test Report

CESI
PUBBLICATO A8003390 (PAD - 1017314)
Test Report
A8003390
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Client
ELTAS Transformatör Sanayi Ve Ticaret Anonim Şirketi
Izmir – TURKEY
Test equipment
Complete column of a three-phase 500 kVA dry-type power transformer
Tests carried out
Fire behaviour test F1 class
Standards/Specifications
IEC 60076-11, 2004 clause 28.3 to 28.8
Test date
from
February 5, 2008
to
February 5, 2008
The test results relate only to the sample tested.
Mod. RPRO v. 02
This document shall not be reproduced except in full without the written approval of CESI.
No. of pages
16
Issue date
February 6, 2008
Prepared
Unit LABORATORIES – Roberto Mariani
Verified
Unit LABORATORIES – Franco Pizzi
Approved
Area COMPONENTS – Virginio Scarioni
CESI
Centro Elettrotecnico
Sperimentale Italiano
Giacinto Motta SpA
No. of pages annexed
Via R. Rubattino 54
20134 Milano - Italia
Telefono +39 022125.1
Fax +39 0221255440
www.cesi.it
Capitale sociale 8 550 000 Euro
interamente versato
Codice fiscale e numero
iscrizione CCIAA 00793580150
Registro Imprese di Milano
Sezione Ordinaria
N. R.E.A. 429222
P.I. IT00793580150
CESI
Test Report
Test witnessed by
Mr. Ahmet Gure
Mr. Yusuf Aygun
A8003390
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(ELTAS Transformatör Sanayi Ve Ticaret Anonim Şirketi, Izmir TURKEY)
(ELTAS Transformatör Sanayi Ve Ticaret Anonim Şirketi, Izmir TURKEY)
Identification of the tested object
Not requested.
Measurement uncertainties
The measurement uncertainties of the test results reported in this document are the following:
voltage:
±5%
current:
±5%
time:
±5%
temperature:
± 2°C up to 100°C
± 2% above 100°C up to 500°C
± 3%C above 500°C
The measurement uncertainties are estimated at the level of twice the standard deviation (corresponding, in the case of
normal distribution, to a confidence level about 95 %) and have to be considered as maximum values.
Test results
The values obtained and the general performance are considered to comply with the reference Standard (see page 1).
Laboratory information
Test location
CESI – Via Rubattino 54 – Milan
CESI testing team
Mr. Claudio Signorini, Mr. Paolo Sironi
Test laboratory
P173
Activity code
80246Q
Test Report
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Table of contents
1
LIST OF INSTRUMENTS USED FOR THE TEST ..........................................................................................4
2
TEST ASSEMBLY ................................................................................................................................................4
3
ATMOSPHERIC CONDITIONS.........................................................................................................................4
4
TEST SET UP.........................................................................................................................................................4
5
THERMOCOUPLES POSITIONS ......................................................................................................................4
6
TEST PROCEDURE .............................................................................................................................................5
6.1
6.2
7
CHARACTERISTIC OF THE TESTED OBJECT .........................................................................................................5
TEST EXECUTION ..............................................................................................................................................5
TEST RESULTS ....................................................................................................................................................6
7.1
7.2
7.3
7.4
7.5
7.6
7.7
TEMPERATURE TABLES .....................................................................................................................................6
TEST CHAMBER CALIBRATION RESULTS ............................................................................................................6
TEMPERATURE DIAGRAM ..................................................................................................................................7
TABLE OF RADIANT PANEL ELECTRIC POWER, AIR SPEED, VISIBLE LIGHT TRANSMITTANCE ..............................8
RADIANT PANEL ELECTRIC POWER DIAGRAM ....................................................................................................9
AIR SPEED DIAGRAM .........................................................................................................................................9
VISIBLE LIGHT TRANSMITTANCE DIAGRAM .....................................................................................................10
8
EVALUATION OF THE TEST..........................................................................................................................11
9
TESTED OBJECT PICTURES..........................................................................................................................12
Test Report
1
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2
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LIST OF INSTRUMENTS USED FOR THE TEST
Data Acquisition System HP 34970A, equipped with no. 3 board for the Analogic / Digital conversion of
voltage and temperature input signal, CESI number 38941;
fan tacoanemometer f.s. 10 m/s, minimum resolution 0,25 m/s, CESI number 22009;
optical density measuring device, 1,7 m from the test chamber ceiling, CESI number 008235;
thermocouples COE-CLERICI type K (full scale 1200 °C) CESI number 14066, 14068, 14069, 14071, 14072,
14035, 14033, 14990, 14992, 38229, 38230, 38231;
electronic weighting device area / weighing platform, CESI number 11471, 11789;
electronic thermometer TERSID graduated scale from –15 °C to + 50 °C, resolution 0,1 °C, CESI number
13769.
TEST ASSEMBLY
The tested object was placed over the alcohol container.
The distance between the bottom of the alcohol container and the floor of the chamber was 300 mm.
The distance between the middle of the windings and the rear wall of the chamber was 600 mm.
The distance between the radiant panel and the outer winding surface was 175 mm.
The bottom of the radiant panel was 500 mm over the chamber floor.
3
ATMOSPHERIC CONDITIONS
External temperature before the test
External temperature after the test
Temperature of the test chamber / tested object before the test
4
+ 10,9 °C
+ 10,1 °C
+ 10,9 °C
TEST SET UP
The test set up comply with the IEC 60076-11 (2004) Standard is identified by CESI as “Plant P173”.
It is mainly composed by:
• vertical metallic chamber, 4 m high, 1 m wide and 2 m deep, with an air-inlet duct and a cylindrical chimney
for the smoke outlet;
• radiant panel with 24 resistor of 1 kW each one, buried in white ceramic material;
• cylindrical container for the ethylic alcohol with external diameter equal to the MV winding external diameter
min. at least 40 mm.
5
THERMOCOUPLES POSITIONS
no. 1 – radiant panel, lower side;
no. 2 – radiant panel, upper side;
no. 3 – air inlet;
no. 4 – tested object, front side, about 100 mm from the bottom;
no. 5 – tested object, front side, in the middle;
no. 6 – tested object, front side, about 100 mm from the top;
no. 7 – tested object, in the duct between the windings, about 100 mm from the top;
no. 8 – tested object, in the duct between the windings, in the middle;
no. 9 – tested object, in the duct between the windings, about 100 mm from the bottom;
no. 10 – on the surface of LV windings, at the top;
no. 11 – on the surface of MV windings, at the top;
no. 12 – at the measuring section of the air outlet.
Test Report
6
6.1
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TEST PROCEDURE
Characteristic of the tested object
The dry-type transformer characteristics were:
Number of phases
Rated voltage of the high-voltage winding (primary winding)
Rated frequency
Rated power
Cooling method
Overall dimension
3
10,5 ± 2 x 2,5 % / 0,4 kV
50 Hz
500 kVA
AN
0,6 x 0,617 x 0,85 (h) m
M.V. external diameter
435 mm
L.V. internal diameter
237 mm
Total mass
347 kg
The alcohol container utilized had the following dimensions:
External diameter
535 mm
Internal diameter
197 mm
Amount of alcohol utilized
6.2
5,82 l
Test execution
After the installation of the tested object in the test chamber, the test began with the ignition of the alcohol, at the
same time the 24 radiant panel resistor were supplied (about 380 V) in order to obtain a thermal flux of about 3
W/cm2 towards the sample, and the forced air purifier were started.
The radiant panel, placed about 175 mm far from the front side of the winding, was switched “OFF” 40 minutes
later, in the meanwhile the alcohol burnt for approximately 30 minutes.
Temperature, electrical power, visible light transmittance and air speed were recorded throughout the test and
reported in the following pages.
CESI
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7
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TEST RESULTS
7.1
Temperature tables
Time
[min]
T.1
[°C]
T.2
[°C]
T.3
[°C]
T.4
[°C]
T.5
[°C]
T.6
[°C]
T.7
[°C]
T.8
[°C]
T.9
[°C]
T.10
[°C]
T.11
[°C]
T.12
[°C]
0,00
1,50
3,00
4,50
6,00
7,50
9,00
10,50
12,00
13,50
15,00
16,50
18,00
19,50
21,00
22,50
24,00
25,50
27,00
28,50
30,00
31,50
33,00
34,50
36,00
37,50
39,00
40,50
42,00
43,50
45,00
46,50
48,00
49,50
51,00
52,50
54,00
55,50
57,00
60,00
8
161
363
500
593
653
692
716
731
741
748
754
757
761
763
763
763
764
765
763
759
756
756
755
755
756
755
693
551
457
385
331
288
254
226
203
184
168
155
143
11
161
363
505
599
659
699
724
739
747
753
756
755
757
757
756
755
757
760
765
772
778
783
788
792
795
798
739
584
480
400
338
289
249
217
191
170
152
137
125
8
9
11
15
17
20
21
22
23
24
24
24
24
24
24
24
24
24
24
24
24
25
25
25
25
25
25
25
25
26
26
26
26
26
26
26
27
27
27
27
11
67
90
147
179
221
202
269
225
256
253
320
309
309
295
327
367
419
435
315
242
238
238
239
242
244
247
242
211
193
180
171
165
160
153
148
143
139
135
131
11
30
62
106
142
171
193
216
225
247
258
283
288
304
313
316
323
347
360
610
643
624
583
569
567
568
569
561
518
403
324
278
249
228
214
202
192
184
176
169
11
27
74
130
170
197
219
242
262
281
299
318
320
328
330
331
328
680
658
668
639
618
629
679
685
676
664
602
451
356
299
252
225
204
188
177
168
160
154
148
11
174
241
288
325
349
366
380
380
381
388
400
409
421
431
437
456
473
494
523
453
422
404
392
382
515
506
540
542
523
417
364
346
333
323
314
306
299
292
286
10
552
616
678
695
701
679
626
614
597
599
612
625
633
620
614
653
672
694
518
443
403
378
358
343
334
325
316
306
293
279
265
255
245
236
229
221
215
210
205
10
402
511
550
583
632
652
651
666
685
691
692
720
726
737
727
744
748
744
693
570
503
461
428
401
381
361
339
320
299
280
260
249
237
229
221
211
205
201
194
11
82
139
169
197
221
256
266
284
448
447
490
484
494
510
555
545
632
602
657
674
676
659
652
653
640
635
607
510
433
417
285
249
236
220
209
200
190
182
175
10
119
156
177
205
231
245
263
252
345
390
390
432
435
471
523
521
525
488
670
642
628
490
343
333
328
315
307
282
266
251
241
234
230
225
218
211
205
200
196
12
20
33
45
57
68
79
90
102
119
142
164
181
194
206
215
219
220
209
190
169
154
144
136
132
128
126
125
120
113
106
100
94
90
86
82
79
76
74
72
7.2
Test chamber calibration results
CESI protocol no.:
Average inlet air speed:
A8003455
1,94 m/s
Test Report
7.3
Temperature diagram
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CESI
Test Report
7.4
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Table of radiant panel electric power, air speed, visible light transmittance
Time
[min]
EL_POWER
[kW]
0,00
1,50
3,00
4,50
6,00
7,50
9,00
10,50
12,00
13,50
15,00
16,50
18,00
19,50
21,00
22,50
24,00
25,50
27,00
28,50
30,00
31,50
33,00
34,50
36,00
37,50
39,00
40,50
42,00
43,50
45,00
46,50
48,00
49,50
51,00
52,50
54,00
55,50
57,00
60,00
0,12
24,42
23,74
24,07
24,05
24,16
24,22
24,13
24,06
24,24
24,20
24,15
24,23
24,35
24,13
24,03
23,86
23,88
23,87
23,89
23,84
23,89
23,89
24,04
23,97
23,94
23,92
0,12
0,11
0,12
0,12
0,12
0,12
0,12
0,12
0,12
0,12
0,12
0,12
0,12
SP2_IEC
[m/sec]
0,00
1,36
1,40
1,66
1,77
1,71
1,83
1,93
2,05
2,23
2,19
2,39
2,13
2,43
2,45
2,34
2,37
2,31
2,34
2,19
1,98
1,97
1,91
2,03
1,91
2,02
1,90
1,83
1,82
1,75
1,66
1,70
1,64
1,45
1,61
1,61
1,65
1,60
1,55
1,49
TRANSM
[%]
100
99
99
100
99
94
75
49
40
67
88
97
98
99
100
99
99
97
89
77
88
93
95
96
97
96
95
95
97
97
97
95
97
97
98
99
99
99
99
100
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Test Report
CESI
7.5
Radiant panel electric power diagram
7.6
Air speed diagram
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Test Report
7.7
CESI
Visible light transmittance diagram
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EVALUATION OF THE TEST
Weight of the sample before the test
Weight of the sample after the test
347 kg
342 kg
220 °C (Text = +24 °C)
θ = 196 K
θm = 420 K
Smoke outlet maximum temperature
Smoke outlet maximum temperature-rise
Smoke outlet maximum temperature-rise admitted by the standard
Smoke outlet temperature after 45 min.
Smoke outlet temperature-rise after 45 min
Smoke outlet maximum temperature-rise after 45 min. admitted by the standard
106 °C (Text = +26 °C
θ = 80 K
θm = 140 K
Smoke outlet temperature after 60 min.
Smoke outlet temperature-rise after 60 min
Smoke outlet maximum temperature-rise after 60 min. admitted by the standard
69 °C (Text = +26 °C
θ = 43 K
θm = 80 K
31,6 % (measured after 12 minutes)
96,03 %
20 %
I min.
I avg
Minimum I avg admitted by the standard
Legenda:
= minimum visible light transmittance inside the air-oulet chimney
I min
= arithmetic mean of the visible light transmittance from 20th to 60th minute during the test
I avg
= external temperature
Text
NOTE: According to IEC 60076-11 (2004) clause 28.3 document:
Τ = X1/P
where
P = 1 m (lenght of the optical path in the smoke outlet)
X = I avg = 0,9603
and consequently T = X = 96,03 %
Test results: positive.
Test Report
9
CESI
TESTED OBJECT PICTURES
Photo no. 1
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Photo no. 2
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Photo no. 3
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Photo no. 4
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Photo no. 5
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