appendix 4 for test report ewn/70/e/11-1 · 2018. 5. 10. · ewn/70/e/11-1 appendix 4 test report...
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HIGH VOLTAGE LABORATORY INSTYTUT ENERGETYKI
POLAND 01-330 WARSZAWA, ul. Mory 8,
tel. (+48 22) 836-80-48,
fax (+48 22) 836-80-48 e-mail: [email protected]
EWN/70/E/11-1
APPENDIX
4
APPENDIX 4 for test report EWN/70/E/11-1
Report of performed tests in High Current Laboratory of Institute of Power Engineering in Warsaw.
Test Report No. EWP/33/E/2011-2e of 9.09.2011
Test Report No. EWP/69/E/2011e of 28.12.2011 (Temperature-rise test)
I N S T Y T U T E N E R G E T Y K I INSTITUTE OF POWER ENGINEERING
LABORATORIUM WIELKOPRDOWE HIGH CURRENT LABORATORY
01-330 Warszawa
ul. Mory 8 tel. (22)34-51-386
tel./fax (22)836-80-16
e-mail: [email protected] http://www.ien.com.pl/pl/ewp
TEST REPORT No. EWP/38/E/2011-2e
TEST OBJECT: Combined transformer type PVA 123
MANUFACTURER: ABB Sp. z o.o. Oddział Przasnysz
ul. egaska 1, 04-713 Warszawa
TESTS ORDERED BY: Institute of Power Engineering,
High-Voltage Department,
Order No. EWN/70/E/11 dated 07.07.2011
TYPE OF TESTS: Temperature-rise test
TEST PROCEDURE: PN-EN 60044-3: 2006, PN-EN 60044-1: 2000,
PN-EN 60044-2: 2001, PN-EN 60044-2: 2001/A2: 2004
TEST OBJECT DELIVERED: 10.07.2011 r.
DATE OF TESTS: 13.07. 2011r. ÷ 15.07.2011 r.
TESTS RESULTS: Positive
Tests result refers only to the test object.
The Test Report consist tests from and beyond the scope of accreditation (details in sub-cl. 4)
Publishing or reproducing of this report in other version then exact and complete without written permission of laboratory
is forbidden
THE TESTS WERE WITNESSED BY: Zbigniew Wesołowski M.Sc. Eng. – ABB Sp. z o.o.
TEST ENGINEER : Lidia Gruza M.Sc. Eng.
HEAD OF LABORATORY : Lidia Gruza M.Sc. Eng.
TEST REPORT TRANSLATION Kieliszek M.Sc. Eng.
Warszawa, 09.09.2011 r.
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 2 / 18
Contents
1. Description of the test object
2. Technical data declared by the Manufacturer
3. Technical documentation of the test object
4. Scope of the tests
5. Tests and their results
6. Summary
7. Opinions and interpretations
8. Photographic documentation
Report contains 18 numbered pages with:
2 Figures
3 Photographs
0 Oscillogramms
1 Appendix
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 3 / 18
1. Description of the test object
Test object Combined transformer
Type, Serial number PVA 123, Serial number: 2GKP011K1084501
Manufacturer ABB Oddział Przasnysz
Year 2011
Insulator porcelain
Number of windings *)
VT part - 5, CT part – 4
Oil type Nytro Libra
Minimum creepage distance 3625 mm
Insulating oil weight 150 kg
Total weight 640 kg
Dimensions According to drawing no. 2GKK610211
*) Winding design and dimensions are given in Appendix.
The laboratory made the identification of test objects on the base of the documentation given in
par. 3 - see Appendix.
The test object is shown in the photograph 1, 2, 3. The object was prepared for testing by the Or-
derer.
2. Technical data declared by the Manufacturer
Maximum operating voltage 123 kV
Rated frequency 50 Hz
Voltage factor and time 1,9Un/8h
Rated primary current, Icth 100 – 200 - 400 A
Rated short-time thermal current, Ith/ 1s 40 – 40 – 40 kA
Rated dynamic current, Idyn 100 – 100 – 100 kA
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 4 / 18
VT part
Kind of secondary winding 1a-1n 2a-2n 3a-3n 4a-4n da-dn
Rated secondary voltage 100:√3 100:√3 100:√3 100:√3 100:3
Rated power of winding 15 VA 15 VA 20 VA 25 VA 50 VA
Accuracy class 0,1 0,1 0,2/3P 0,5/3P 3P
Rated thermal limit power 1000 VA 1000 VA 1000 VA 1000 VA 450 VA
CT part
Type of secondary winding 1S1-1S2 2S1-2S2 3S1-3S2 4S1-4S2
Rated secondary current 5 A 1 A 5 A 1 A
Rated power of winding 10 VA 2,5 VA 15 VA 15 VA
Accuracy class 0,5 0,5 5P 5P
FS/ALF 5 10 30 20
Ratio A/A A/A A/A
Ext. 200 % 200%
3. Technical documentation of the test object
1.
Drawing no. 2GKK610211 – Rysunek wymiarowy (dimensional drawing). Przekładnik
kombinowany (combined transformer) PVA 123, ABB Sp. z o.o. Power Products, zatwier-
dzony (approved) 12.07.2011
2. Verification protocol of the combined transformer type PVA 123, Serial No.:
2GKP011K1084501. ABB Sp. z o.o., Przasnysz, 20.06.2011
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 5 / 18
4. Scope of the tests
Test programme agreed with Orderer comprised of tests:
Lp. Kind of test StandardLocation of the
test
1. Temperature-rise
PN-EN 60044-3: 2006 sub-cl. 4.2, 7.2b,
PN-EN 60044-1: 2000 sub-cl. 4.6, 7.2,
PN-EN 60044-2: 2001 sub-cl. 5.4, 8.1,
13.6.1
PN-EN 62271-1: 2009, table 3, p. 4
EWP
EWP The test was performed in Institute of Power Engineering, by High - Current Laboratory.
5. Tests and their results
Combined transformer was installed at the test stand, as it was during normal operation.
Electric diagram of terminal box of tested combined transformer is given in Fig. 1
The rated voltage with a required value was applied to the primary voltage winding.
The secondary voltage windings and the residual voltage winding were loaded with the rated power,
according to the test programme given below, which was agreed with the Orderer.
Primary current winding P1 and P2/A was short-circuited at the range of 200 A.
Current in primary current of the CT part winding was equal to 400 A.
The arrangement of the thermocouples is given in Fig. 2.
The temperature-rises of windings were measured by the resistance rise method.
During the test, the measurements of loaded windings were made every 1 hour and registered the de-
flection of oil level indicator.
The resistance of all windings was measured before the test and after of each phase of tests.
The abstract of the protocol of temperature-rise test is given in Tables 1 and 2.
The summary of test results is given in Table 3
On request of the Orderer, the temperature-rise of windings were calculated from the formula:
004,00
01
0 ⋅
−==∆
R
RR
R
RT
α
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 6 / 18
Stage No. 1. Test at the rated load
Test was performed according to IEC 60044-2 sub-cl. 8.1, 13.6.1 i 5.4 a)
The voltage value 1,2 Un = 76,2 kV was applied to P2/A winding.
The secondary voltage windings were loaded as follows:1a-1n 15 VA, cos = 1, at the voltage
100/-2n 15 VA, cos = 1, at the voltage 100/-3n 20 VA, cos = 1, at the
voltage 100/4a-4n 25 VA, cos = 1, at the voltage 100/3 V.
The winding of residual voltage remained open.
The secondary current windings were loaded as follows:1S1-1S2 10 VA, cos = 1;
2S1-2S2 2,5 VA, cos = 1; 4S1-4S2 15 VA, cos = 1.
Supply (current control) was applied to secondary current winding 3S1-3S2.
Terminals P1 and P2/A were short-circuited at the range 200 A.
The test was performed till reached steady state temperature.
Cross-sections of secondary current and voltage windings are given in Appendix.
Stage No. 2 Test of 8 h
Test was done immediately after Stage No. 1 according to IEC 60044-2 sub-cl. 8.1, 13.6.1 i 5.4 c).
The voltage value 1,9 Un = 119,7 kV was applied to the winding P2/A .
The secondary voltage windings were loaded as follows: 1a-1n 15 VA, cos = 1, at the voltage
100/-2n 15 VA, cos = 1, at the voltage 100/-3n 20 VA at the voltage
100/4a-4n 25 VA, cos = 1, at the voltage 100/3 V.
The residual winding da-dn was loaded by 450 VA, cos = 1, at the voltage 100/3 V.
The secondary windings of the CT part were loaded by powers: 1S1-1S2 10 VA cos = 1; 2S1-
2S2 2,5 VA cos = 1; 4S1-4S2 15 VA cos = 1. Supply (current control) was applied to sec-
ondary current winding 3S1-3S2. Terminals P1 and P2/A were short-circuited at the range 200 A.
The duration of the test was 8 h. Winding da-dn was wound by profiled wire Cu 2×4,5 mm (25
turns), winding A-N was wound by wire Cu ∅ = 0,18 mm (47234 turns), remaining secondary cur-
rent and voltage windings – see Appendix.
Stage No. 3 Test with thermal limit power till temperature reach steady state
Test was done immediately after Stage No. 2 according to standard IEC 60044-2 sub-cl. 8.1, 13.6.1
and 5.4a).
The voltage value Un = 63 kV was applied to the winding P2/A.
The secondary voltage windings were loaded as follows: 1a-1n 1000 VA, cos = 1, at the volt-
age 100/-2n 15 VA, cos = 1, at the voltage 100/-3n 20 VA at the voltage
100/4a-4n 25 VA, cos = 1, at the voltage 100/3 V.
The winding da-dn of residual voltage remained open.
The secondary current windings were loaded as follows: 1S1-1S2 10 VA, cos = 1; 2S1-2S2
2,5 VA, cos = 1; 4S1-4S2 15 VA, cos = 1.
Supply (current control) was applied to secondary current winding 3S1-3S2.
Terminals P1 and P2/A were short-circuited at the range 200 A.
The test was performed till reaching the steady state temperature.
Windings 1a-1n, 2a-2n, 3a-3n and 4a -4n were wound with profile wire Cu 1,5 × 4,5 mm (43 turns).
Secondary current windings – see Appendix.
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 7 / 18
Stage No. 4 Test with total thermal limit power till temperature reach steady state
Test was done immediately after Stage No. 3 in configuration according to Manufacurer’s request.
The voltage value Un = 63 kV was applied to the winding P2/A.
Each secondary voltage winding (i.e. 1a-1n, 2a-2n, 3a-3n and 4a -4n) was loaded by limit power
1000 VA at cos = 1 .
The residual winding remained open.
The secondary current windings were loaded as follows: 1S1-1S2 10 VA, cos = 1; 2S1-2S2
2,5 VA, cos = 1; 4S1-4S2 15 VA, cos = 1.
Supply (current control) was applied to secondary current winding 3S1-3S2.
Terminals P1 and P2/A were short-circuited at the range 200 A.
The test was performed till reaching the steady state temperature.
Measuring instruments
The temperatures were measured by means of type K thermocouples (NiCr – NiAl) with accuracy
± 0,6oC
1.
The ambient temperature was measured using four mercurial thermometers immersed into tank
filled with oil. These thermometers were placed in the distance of 1 meter from the tested trans-
former at the height of 1 meter above floor- the accuracy of measurement ± 0,03°C2.
The resistance was measured by means of meter type 2291 manufactured by TETTEX Instruments
with accuracy ± 0,01 mΩ3
1
The expanded uncertainty assigned corresponds to a coverage probability of 95 % and the coverage factor k = 2.
2The expanded uncertainty assigned corresponds to a coverage probability of 95 % and the coverage factor k = 2.
3The expanded uncertainty assigned corresponds to a coverage probability of 95 % and the coverage factor k = 2.
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 8 / 18
Fig. 1. Electrical diagram of terminal box of tested combined transformer (based on documenta-
tion page 3, item 2)
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 9 / 18
Fig. 2. Arrangement of thermocouples during temperature-rise tests : 1- oil (over current coil); 2-
head (contraction of the flange connecting the head with the insulator); 3- under the flange of
tank lid; 4- lower tank (placed inside over earthing terminal ); 5- terminal P1 (contraction in flat
part); 6 – terminal P2/A (200 A, contraction in flat part); 7 – terminal; 8 – connection.
I N
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/2011-2
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Str
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/ 1
8
Tab
le 1
. T
emp
era
ture
-ris
e te
st r
esu
lts
of
tra
nsf
orm
er
PV
A 1
23, se
rial
No. 2G
KP
011K
10845
01
*)
No
. o
f th
erm
oco
uple
T
emp
erat
ure
[°C
] a
fter
hea
tin
g t
ime
[h]
Sta
ge
No
. 1
Sta
ge
No
. 2
Sta
ge
No
. 3
0
1
2
3
4
56
7
8
9
1
0
11
12
13
14
15
16
17
18
19
20
21
22
1
21
,6
21
,2
21
,4
21
,7
21
,9
21
,8
24
,3
22
,2
22
,6
22
,8
23
,1
23
,2
23
,6
24
,3
24
23
,8
23
,5
23
,8
23
,8
23
,8
23
,8
23
,8
24
,3
2
21
,5
21
,5
21
,4
22
21
,9
22
,1
24
22
,4
22
,7
22
,9
23
,1
23
,3
23
,5
24
,3
24
23
,5
23
,5
23
,5
23
,5
23
,8
23
,8
23
,8
24
,3
3
21
,1
21
,5
21
,9
22
,8
22
,9
23
,3
24
,8
23
,1
23
,2
23
,8
23
,8
23
,8
23
,6
24
24
,3
24
,8
24
,8
24
,8
24
,8
25
,3
25
24
,8
25
,2
4
21
21
,7
22
,1
22
,8
22
,7
22
,9
24
,4
23
,1
23
,2
23
,3
23
,3
23
,3
23
,4
24
24
,3
24
,8
24
,5
25
,2
25
25
25
25
,2
25
5
21
,5
22
,8
23
,2
23
,6
23
,8
23
,9
25
,4
24
,1
24
,3
24
,5
24
,6
24
,5
24
,7
25
,2
25
24
,8
24
,5
24
,5
24
,3
24
,8
24
,5
24
,5
25
6
21
,5
23
,5
24
24
,7
24
,6
24
,8
26
,1
24
,9
25
,1
25
,3
25
,4
25
,5
25
,5
26
,5
26
,2
25
,7
25
,5
25
,5
25
,5
25
,5
25
,5
25
,5
25
,98
7
21
,5
23
,3
23
,9
24
,6
24
,6
24
,7
26
24
,9
25
25
,1
25
,2
25
,2
25
,3
26
,2
25
,7
25
,5
25
,2
25
,2
25
25
25
25
25
,5
8
21
,5
23
,3
23
,9
24
,5
24
,5
24
,7
25
,9
25
25
25
,2
25
,4
25
,5
25
,5
26
,2
25
,7
25
,5
25
,5
25
,5
25
,5
25
,7
25
,7
25
,7
25
,98
To
tr,
°C2
1,1
2
1,3
2
1,5
2
1,7
2
1,8
2
2
21
,9
21
,9
21
,9
21
,9
22
22
22
22
22
,2
22
,3
22
,4
22
,4
22
,4
22
,45
22
,45
22
,45
22
,3
Uza
s, k
V
76
,2 k
V
11
9,7
kV
6
3 k
V
I zas
, A
1
0,3
6
10
,4
10
,4
10
,3
10
,3
10
,3
10
,4
10
,3
10
,4
10
,3
10
,3
10
,3
10
,3
10
,3
10
,3
10
,3
10
,3
10
,31
10
,32
10
,32
10
,33
10
,28
10
,32
I 1S
1-1
S2,
A
9,6
6
9,3
8
9,3
2
9,3
4
9,3
4
9,3
2
9,3
2
9,7
6
9,6
8
9,8
4
9,8
6
9,6
9
,76
9,7
8
9,7
9
,76
9,7
2
9,7
6
9,7
8
9,7
6
9,7
8
9,7
2
9,2
9
I P1-P
2/A
, A
4
03,2
4
04
40
4
40
2
40
2
40
2
40
3
40
2
40
3
40
2
40
2
40
1
40
2
40
2
39
9
40
2
40
0
40
1,3
40
1,7
40
1,7
40
2,0
40
0,1
4
01,7
I P2/A
-N,
mA
2
8
- -
- -
- -
- -
- -
- -
28
46
- -
- -
- -
46
28
R1S
1-1
S2, m
Ω4
9,2
7
49
,58
49
,8
49
,8
49
,9
50
50
50
,1
50
,1
50
,2
50
,3
50
,5
50
,5
50
,4
50
,5
50
,6
50
,6
50
,67
50
,68
50
,82
50
,88
50
,93
50
,93
R2S
1-2
S2,
mΩ
39
1,5
3-
- -
- -
- -
- -
- -
- 4
01
- -
- !
- -
- 4
05,3
-
R3S
1-3
S2,
mΩ
68
,56
69
,5
69
,7
69
,6
69
,7
70
,3
69
,8
70
,8
69
,7
70
70
,6
71
,3
71
,3
71
,4
70
,3
70
,4
70
,6
70
,53
70
,74
70
,76
71
,03
70
,75
71
,14
R4S
1-4
S2,
mΩ
90
4,4
8-
- -
- -
- -
- -
- -
- 9
26
- -
- -
- -
- 9
35,2
9
-
RP
1-P
2/A
, m
Ω0
,02
97
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
∆T
1S
1-1
S2
- 1
,56
32
,69
2,6
9
3,2
3
,7
3,7
4
,21
4,2
1
4,7
2
5,2
3
6,2
4
6,2
4
5,7
3
6,2
4
6,7
5
6,7
5
7,1
7
,16
7,8
7
8,1
7
8,4
2
8,4
2
∆T
2S
1-2
S2
- -
- -
- -
- -
- -
- -
- 6
,05
- -
- -
- -
- 8
,79
-
∆T
3S
1-3
S2
- 3
,43
4,1
6
3,7
9
4,1
6
6,3
4
,5
8,1
7
4,1
6
5,2
5
7,4
4
9,9
9
9,9
9
10
,4
6,3
5
6,7
1
7,4
4
7,1
8
7,9
5
8,0
2
9,0
7
,99
9,4
1
∆T
4S
1-4
S2
- -
- -
- -
- -
- -
- -
- 5
,95
- -
- -
- -
- 8
,52
-
∆T
P1-P
2/A
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
-
R1a-
1n,
mΩ
46
,347
46
,57
46
,7
46
,8
46
,9
47
47
47
47
,1
47
,1
47
,1
47
,2
47
,2
47
,2
47
,9
48
,2
48
,3
48
,35
48
,43
48
,46
48
,51
48
,54
48
,27
R2a-
2n,
mΩ
48
,25
48
,46
48
,6
48
,7
48
,8
48
,9
48
,9
49
49
49
49
49
,1
49
,1
49
,1
49
,9
50
,2
50
,3
50
,43
50
,52
50
,57
50
,60
50
,65
50
,31
R3a-
3n,
mΩ
50
,365
50
,56
50
,8
50
,8
50
,9
51
51
,1
51
,1
51
,1
51
,2
51
,2
51
,2
51
,2
51
,3
52
,1
52
,4
52
,6
52
,68
52
,77
52
,83
52
,87
52
,92
52
,5
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IEL
KO
PR
DO
WE
Tes
t R
epo
rt N
o.
EW
P/3
8/E
/2011-2
e
Str
on
a
11
/ 1
8
Tab
le 1
co
nt.
Sta
ge
No
. 1
con
t.
Sta
ge
No
. 2
con
t.
Sta
ge
No
. 3
con
t.
0
1
2
3
4
56
7
8
9
1
0
11
12
13
14
15
16
17
18
19
20
21
22
R4a-
4n,
mΩ
52
,479
52
,66
52
,8
53
53
53
,1
53
,2
53
,2
53
,3
53
,3
53
,3
53
,3
53
,4
53
,4
- -
- -
- -
- 5
5,1
96
54
,72
Rda-
dn,
mΩ
27
,137
- -
- -
- -
- -
- -
- -
27
,6
28
,1
28
,4
28
,4
28
,5
28
,56
28
,58
28
,62
28
,62
-
RP
2/A
-N,
kΩ
20
,8
- 2
0,5
-
20
,6
- 2
0,7
-
20
,8
- 2
0,9
-
20
,9
20
,9
20
,9
- 2
1,1
-
21
,27
21
,35
21
,38
21
,4
21
,45
∆T
1a-
1n,
-
1,2
1
,9
2,4
4
2,9
8
3,5
2
3,5
2
3,5
2
4,0
6
4,0
6
4,0
6
4,6
4
,6
4,6
8
,38
9,9
9
10
,53
10
,8
11
,21
11
,39
11
,67
11
,81
10
,39
∆T
2a-
2n,
-
1,0
8
1,8
1
2,3
3
2,8
5
3,3
7
3,3
7
3,8
9
3,8
9
3,8
9
3,8
9
4,4
4
,4
4,4
8
,55
10
,1
10
,62
11
,3
11
,76
12
,02
12
,18
12
,44
10
,67
∆T
3a-
3n,
-
0,9
7
2,1
6
2,1
6
2,6
6
3,1
5
3,6
5
3,6
5
3,6
5
4,1
5
4,1
5
4,1
5
4,1
5
4,6
4
8,6
1
10
,1
11
,09
11
,49
11
,94
12
,24
12
,43
12
,68
10
,6
∆T
4a-
4n,
- 0
,86
1,5
3
2,4
8
2,4
8
2,9
6
3,4
4
3,4
4
3,9
1
3,9
1
3,9
1
3.9
1
4,3
9
4,3
9
- -
- -
- -
- 1
2,9
4
10
,68
∆T
da-
dn,
-
- -
- -
- -
- -
- -
- -
4,2
7
8,8
7
11
,64
11
,64
12
,56
13
,11
13
,29
13
,66
13
,66
-
∆T
P2/A
-N,
-
- -3
,6
- -2
,4
- -1
,2
- 0
-
1,2
-
1,2
1
,2
1,2
-
3,6
1
- 5
,65
6,6
1
6,9
7
7,2
1
7,8
1
Wych
yle
nie
wsk
an
ika
po
zio
mu
ole
ju,
mm
- 0
0
0
1
1
1
2
2
3
3
3
3
3
3
3
3
4
4
5
5
5
5
Tab
lica
2. T
emp
eratu
re-r
ise
test
res
ult
s of
tran
sform
er
PV
A 1
23, se
rial
No. 2G
KP
011K
10845
01
*) c
on
t.
No
. o
f th
er-
mo
cou
ple
Tem
per
atu
re [
°C]
aft
er h
eati
ng t
ime
[h]
Sta
ge
No
. 3
con
t.
Sta
ge
No
. 4
23
24
25
26
27
28
29
30
31
32
33
34
35
36
1
25
,2
25
,13
25
,6
25
,4
25
,28
25
,33
25
,7
25
,7
25
,93
26
,05
26
,45
27
,33
27
,08
27
,58
2
24
,8
24
,7
25
,1
24
,9
24
,95
25
,21
25
,38
25
,48
25
,77
25
,98
26
,25
27
,03
26
,9
27
,23
3
25
,2
24
,9
24
,1
25
,0
25
,30
- 2
5,6
3
26
,13
26
,8
27
,10
27
,53
27
,55
27
,98
27
,95
28
,03
4
25
24
,7
24
,6
24
,8
25
,25
26
,1
25
,8
26
,35
26
,58
26
,65
26
,43
27
,30
27
,25
27
,35
5
25
,5
25
,7
25
,9
25
,8
25
,65
25
,8
25
,98
26
,1
26
,28
26
,43
26
,63
27
,00
26
,93
27
,05
6
26
,5
26
,4
26
,6
26
,5
26
,35
26
,55
26
,7
26
,85
26
,95
27
,08
27
,23
27
,58
27
,48
27
,63
7
26
,2
26
,1
26
,3
26
,1
26
,05
26
,23
26
,38
26
,45
26
,58
26
,68
26
,85
27
,18
27
,03
27
,15
8
26
,7
26
,7
26
,7
26
,6
26
,63
26
,78
26
,95
27
,10
27
,28
27
,45
27
,65
27
,93
27
,9
27
,95
To
tr,
°C2
2,3
2
2,2
5
22
,28
22
,23
22
,55
22
,78
22
,9
22
,95
23
22
,98
22
,9
22
,88
22
,8
22
,8
Uza
s, k
V
63
kV
6
3 k
V
I zas
, A
1
0,2
8
10
,3
10
,32
10
,28
10
,3
10
,308
10
,332
10
,24
10
,24
10
,3
10
,32
10
,34
10
,26
10
,238
I 1S
1-1
S2,
A
9,5
2
9,5
2
9,5
2
9,3
2
9,5
8
9,4
9
,52
8
9,5
8
9,5
6
9,5
8
9,4
8
9,4
8
9,5
7
9,5
44
I P1-P
2/A
, A
4
00,1
4
00,8
8
40
1,6
5
40
0,1
4
00,8
8
40
1,1
9
40
2,1
2
39
8,5
4
39
8,5
4
40
0,8
8
40
1,6
5
40
2,4
3
39
9,3
2
39
8,4
6
I P2/A
-N,
mA
-
- -
28
58
- 6
1
- 6
1
- -
- -
61
I N
S T
Y T
U T
E
N E
R G
E T
Y K
I
LA
BO
RA
TO
RIU
M W
IEL
KO
PR
DO
WE
Tes
t R
epo
rt N
o.
EW
P/3
8/E
/2011-2
e
Str
on
a
12
/ 1
8
Tab
le 2
co
nt.
Sta
ge
No
. 3
con
t.
Sta
ge
No
. 4
con
t.
23
24
25
26
27
28
29
30
31
32
33
34
35
36
R1S
1-1
S2,
mΩ
50
,98
50
,98
50
,95
50
,96
50
,98
51
,123
51
,067
51
,17
51
,22
51
,27
51
,35
51
,26
51
,43
51
,34
R2S
1-2
S2,m
Ω-
- -
40
6,6
7
- -
- -
- -
- -
- 4
08,9
2
R3S
1-3
S2,
mΩ
71
,539
71
,182
71
,181
70
,984
71
,14
71
,79
71
,103
71
,539
71
,28
71
,837
72
,067
71
,33
72
,03
71
,81
R4S
1-4
S2,
mΩ
- -
- 9
38,5
1
- -
- -
- -
- -
94
3,6
7
94
4,3
1
RP
1-P
2/A
, m
Ω-
- -
- -
- -
- -
- -
- -
0,0
297
∆T
1S
1-1
S2
8,6
6
8,6
6
8,5
8
,55
8,6
6
9,3
8
9,1
9
,62
9,8
7
10
,13
10
,53
10
,08
10
,94
10
,48
∆T
2S
1-2
S2
- -
- 9
,67
- -
- -
- -
- -
11
,1
11
,98
∆T
3S
1-3
S2
10
,86
9,5
5
9,5
5
8,8
3
9,4
1
1,7
7
9,2
7
10
,86
9,9
1
11
,94
12
,78
10
,09
12
,65
11
,84
∆T
4S
1-4
S2
- -
- 9
,41
- -
- -
- -
- -
10
,8
11
,01
∆T
P1-P
2/A
- -
- -
- -
- -
- -
- -
- 0
R1a-
1n,
mΩ
48
,202
48
,157
48
,072
48
,078
49
,962
50
,233
50
,029
50
,373
50
,48
50
,524
50
,583
50
,542
50
,627
50
,497
R2a-
2n,
mΩ
50
,228
50
,174
50
,101
50
,098
52
,34
52
,667
52
,436
52
,796
52
,96
52
,971
53
,052
53
,004
53
,098
52
,946
R3a-
3n,
mΩ
52
,412
52
,351
52
,293
52
,281
54
,645
55
,066
54
,88
55
,243
55
,406
55
,49
55
,548
55
,475
55
,601
55
,457
R4a-
4n,
mΩ
54
,614
54
,554
54
,504
54
,492
57
,025
57
,509
57
,386
57
,676
57
,931
58
,023
58
,102
58
,067
58
,171
58
,024
Rda-
dn,
mΩ
- -
- 2
8,1
52
- -
- -
- -
- -
30
,337
30
,236
RP
2/A
-N,
kΩ
- 2
1,4
-
21
,35
22
,54
23
,12
23
,85
23
,78
24
,03
24
,17
24
,36
23
,7
24
,28
24
,36
∆T
1a-
1n,
1
0,0
1
9,7
6
9,3
1
9,3
4
19
,5
20
,96
19
,86
21
,72
22
,29
22
,53
22
,85
22
,63
23
.09
22
,39
∆T
2a-
2n,
1
0,2
5
9,9
7
9,5
9
9,5
8
21
,19
22
,89
21
,69
23
,55
24
,4
22
,46
24
,88
24
,63
25
,12
24
,33
∆T
3a-
3n,
1
0,1
6
9,8
6
9,5
7
9,5
1
21
,25
23
,35
22
,41
24
,21
25
,02
25
,44
25
,73
25
,37
25
,99
25
,28
∆T
4a-
4n,
10
,17
9,8
9
9,6
5
9,5
9
21
,66
23
,96
23
,38
24
,76
25
,97
26
,41
26
,79
26
,62
27
,12
26
,42
∆T
da-
dn,
-
- -
9,3
5
- -
- -
- -
- -
29
,48
28
,52
∆T
P2/A
-N,
-
7,2
1
- 6
,61
20
,91
27
,89
36
,66
35
,82
38
,82
40
.5
42
,79
34
,86
41
,82
42
,79
Def
lect
ion
of
the
oil
lev
el
ind
icat
or
mm
.
5
5
5-
5
5
6
7
8
9
10
11
11
11
11
*) B
efo
re t
he
test
it
was
sta
ted
, th
at t
erm
inal
s p
anel
ap
pli
ed i
n t
he
test
ed t
ran
sfo
rmer
had
in
fluen
ce a
t th
e re
sist
ance
mea
sure
men
t. T
he
spri
ngs,
wh
ich p
ress
ed d
ow
n t
he
wir
es
of
win
din
gs
had
to
o w
eak p
ress
ure
(th
e w
ires
wer
e m
ovab
le).
To
pre
ven
t it
, th
e te
rmin
al p
anel
of
the
Hig
h-C
urr
ent
Lab
ora
tory
was
use
d.
Mar
ked
wit
h „
-„ a
re v
alues
no
t m
easu
red
(ag
reed
wit
h O
rder
er)
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 13 / 18
Table 3. Temperature-rises [K] transformer PVA 123 serial No. 2GKP011K1084501
during temperature-rise test
Winding after Stage
No. 1
after Stage
No. 2
after Stage
No. 3
after Stage
No. 4 ∆ϑ∆ϑ∆ϑ∆ϑdop.
1S1-1S2 5,73 8,42 8,55 10,48
75 1) 3)
2S1-2S2 6,05 8.79 9,67 11,98
3S1-3S2 10,4 7,99 8,83 11,84
4S1-4S2 5,95 8,52 9,41 11,01
P1-P2/A - - - 0
1a- 1n 4,6 11,81 9,34 22,39
75 2)3)
2a-2n 4,4 12,44 9,58 24,33
3a-3n 4,64 12,68 9,51 25,28
4a – 4n 4,39 12,94 9,59 26,42
da-dn 4,27 13,66 9,35 28,52
P2/A-N 1,2 7,21 6,61 42,79
Thermocouple
location
∆ϑ∆ϑ∆ϑ∆ϑ
∆ϑ∆ϑ∆ϑ∆ϑdop.after Stage
No. 1
after Stage
No. 2
after Stage
No. 3
after Stage
No. 4
Oil 2,3 1,3 3,2 4,87 551), 2), 3)
Head – top part next
to terminal2,3 1,6 2,62 4,53
404)
Under the tank lid
from side of termi-
nal box
2 2,3 2,8 5,28
Enclosure of lower
tank2 2,8 2,6 4,6
Terminal P1 (con-
traction in flat part)3,2 2,1 3,5 4,3 65
4)
Terminal P2/A (con-
traction in flat part)4,5 3,03 4,24 4,88 65
4)
1) acc. to PN-EN 60044-1:2000,
2) acc. to PN-EN 60044-2:2001,
3) acc. to PN-EN
60044-3: 2006, 4)
acc. to PN-EN 62271-1:2009,
∆ϑ∆ϑ∆ϑ∆ϑ - temperature-rise; ∆ϑ∆ϑ∆ϑ∆ϑdop – permitted value in steady state
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 14 / 18
6. Summary
The temperature rise limits were not exceeded in tested transformer type PVA 123 with
porcelain insulator.
The tested transformer met the requirements of the PN-EN 60044-3: 2006,
PN-EN 60044-1: 2000, PN-EN 60044-2: 2001 i PN-EN 62271-1: 2009 standards.
7. Opinions and interpretations
None
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 15 / 18
8. Photographic documentation
Ph. 1. Combined transformer PVA 123, serial No. …84501/11, on the test stand during tempera-
ture-rise test.
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 16 / 18
APPENDIX
Documentation delivered by the Manufacturer
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 17 / 18
Windings of tested transformer, document provided by the Manufacturer
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/38/E/2011-2e
Strona 18 / 18
I N S T Y T U T E N E R G E T Y K I INSTITUTE OF POWER ENGINEERING
LABORATORIUM WIELKOPRDOWE HIGH CURRENT LABORATORY
01-330 Warszawa
ul. Mory 8 tel. (22)34-51-386
tel./fax (22)836-80-16
e-mail: [email protected] http://www.ien.com.pl/pl//lwp
TEST REPORT No. EWP/69/E/2011e
TEST OBJECT: Combined instrument transformer type PVA 123
MANUFACTURER: ABB Sp. z o.o. Oddział Przasnysz
ul. egaska 1, 04-713 Warszawa
TESTS ORDERED BY: ABB Sp. z o.o. Oddział Przasnysz
ul. egaska 1, 04-713 Warszawa
Order No. 4500376028 dated 21.12.2011
TYPE OF TESTS: Temperature-rise test
TEST PROCEDURE: IEC 60044-3:2002, IEC 60044-1:1996, IEC 60044-2: 1997,
IEC 60044-2 1997 /A2:2002
TEST OBJECT DELIVERED: 19.12.2011
DATE OF TESTS: 20.12.2011 ÷ 23.12.2011
TESTS RESULTS: Positive
Tests result refers only to the test object.
The Test Report consist tests from and beyond the scope of accreditation (details in sub-cl. 4)
Publishing or reproducing of this report in other version then exact and complete without written permission of laboratory
is forbidden
THE TESTS WERE WITNESSED
BY :
Zbigniew Wesołowski M.Sc. Eng. – ABB Sp. z o.o.
REPORT TRANSLATION: Lidia Gruza M.Sc. Eng.
TEST ENGINEER : Lidia Gruza M.Sc. Eng.
HEAD OF LABORATORY : Lidia Gruza M.Sc. Eng.
Warsaw, 28.12.2011
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 2 / 18
Contents
1. Description of the test object
2. Technical data declared by the Manufacturer
3. Technical documentation of the test object
4. Scope of the tests
5. Tests and their results
6. Summary
7. Opinions and interpretations
8. Photographic documentation
Report contains 18 numbered pages with:
2 Drawings
3 Photographs
0 Oscillogramms
1 Appendix
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 3 / 18
1. Description of the test object
Test object Combined instrument transformer
Type, Serial number PVA 123, 2GKP011K1084502
Manufacturer ABB Oddział Przasnysz
Year 2011
Insulator Composite insulator
Number of windings *)
VT part - 5, CT part– 6
Oil type Nytro Libra
Minimum creepage distance 3800 mm
Insulating oil weight 150 kg
Total weight 550 kg
Dimensions According to drawing no. 2GKK610212
*) Winding design and dimensions are given in Appendix.
The laboratory made the identification of test objects on the base of the documentation given in
par. 3 - see Appendix.
The test object is shown in the photographs No. 1, 2 and 3. The object was prepared for testing by
the Manufacturer.
2. Technical data declared by the Manufacturer
Maximum operating voltage 123 kV
Rated frequency 50 Hz
Voltage factor and time 1,9Un/8h
Rated continuous thermal current, Icth 3000 A
Rated short-time thermal current, Ith/ 1s 63 kA
Rated dynamic current, Idyn 158 kA
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 4 / 18
VT part
Type of secondary winding 1a-1n 2a-2n 3a-3n 4a-4n da-dn
Rated secondary voltage 100:√3 100:√3 100:√3 100:√3 100:3
Rated output 30 VA 30 VA 30 VA 60 VA 50 VA
Accuracy class 0,2 0,2 0,2/3P 0,5/3P 3P
Thermal limiting output 1000 VA 1000 VA 1000 VA 1000 VA 450 VA
CT part
Type of secondary winding 1S1-1S2 2S1-2S2 3S1-3S2 4S1-4S2 5S1-5S2 6S1-6S2
Rated secondary current 5 A 1 A 5 A 5 A 1 A 1 A
Rated output 90 VA 45 VA 30 VA 90 VA 45 VA 60 VA
Accuracy class 0,2S 0,5S 5P 5P 10P 10P
FS/ALF 5 10 30 20 30 10
Rated transformation ratio 3000/5
A/A
3000/1
A/A
3000/5
A/A
3000/5
A/A
3000/1
A/A
3000/1
A/A
Ext. 120 % 120%
3. Technical documentation of the test object
1. Drawing no. 2GKK610212/ – Dimensional drawing. Combined transformer PVA 123,
ABB Sp. z o.o. Power Products, approved 12.07.2011
2. Combined transformer verification protocol; type PVA 123, Series No.:
2GKP011K1084502. ABB Sp. z o.o., Przasnysz, 20.06.2011
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 5 / 18
4. Scope of the tests
Test programme agreed with Orderer comprised of tests:
Kind of test Tests according the StandardLocation of the
test
Temperature-rise tests
IEC 60044-3:2002 sub-cl. 4.2, 7.2b,
IEC 60044-1:1996 sub-cl. 4.6, 7.2,
IEC 60044-2:1997 sub-cl. 5.4, 8.1, 13.6.1
IEC 62271-1:2007, Table No. 3, sub-cl. 4
EWP
EWP The test was performed in Institute of Power Engineering, by High - Current Laboratory.
5. Tests and their results
Combined transformer was installed at the test stand, as it was during normal operation.
Electric diagram of terminal box of tested combined transformer is given in Fig. 1
The rated voltage with a required value was applied to the primary voltage winding.
The secondary voltage windings and the residual voltage winding were loaded with the rated power,
according to the test programme given below, which was agreed with the Orderer.
Primary current terminals P1 and P2/A was bridged at the range of 3000 A.
According to Manufacturer’s request current in primary current winding was equal to Icth = 3000 A.
The arrangement of the thermocouples is given in Figure No. 2.
The temperature-rises of windings were measured by the resistance rise method.
During the test, the measurements of loaded windings were made every 1 hour and registered the de-
flection of oil level indicator.
The resistances of all windings were measured before the tests and after of each stage of tests.
The abstract of the protocol of temperature-rise test is given in Table No. 1.
The summary of test results is given in Table 2
The temperature-rise of windings were calculated from the formula:
004,00
01
0 ⋅
−==∆
R
RR
R
RT
α
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 6 / 18
Stage No. 1: Test at the rated load
Test was performed according to the IEC 60044-1 sub-cl. 4.6, 7.2, IEC 60044-2 sub-cl. 8.1, 5.4 a)
and 13.6.1, IEC 60044-3 sub-cl. 4,2, 7.2b). The voltage value 1,2 Un = 76,2 kV was applied to the
P2/A terminal.
The secondary voltage windings were loaded as follows:1a-1n 30 VA, cos = 1, at the voltage
100/3 V; 2a-2n 30 VA, cos = 1, at the voltage 100/3 V; 3a-3n 30 VA, cos = 1, at the
voltage 100/3 V; 4a-4n 60 VA, cos = 1, at the voltage 100/3 V.
The winding of residual voltage remained open.
The secondary current windings of the CT were loaded as follows:1S1-1S2 90 VA, cos = 1;
2S1-2S2 45 VA, cos = 1; 5S1-3S2 45 VA, cos = 1; 6S1-6S2 60 VA, cos = 1.
Supply (current control) was applied to the secondary current windings 3S1-3S2 and 4S1-4S2 (par-
allel connected). Terminals P1 and P2/A were short-circuited at the range 3000 A.
The test was performed till reached steady state of the measured temperatures.
Cross-sections of secondary current and voltage windings are given in Appendix.
Stage No. 2: Test of 8 h
Test was done immediately after the Stage No. 1 according to the IEC 60044-1 sub-cl. 4.6, 7.2, IEC
60044-2 sub-cl. 5.4 c), 8.1, and 13.6.1, IEC 60044-3 sub-cl. 4,2, 7.2b). The voltage value
1,9 Un = 119,7 kV was applied to the P2/A terminal.
The secondary voltage windings were loaded as follows: 1a-1n 30 VA, cos = 1, at the voltage
100/3 V; 2a-2n 30 VA, cos = 1, at the voltage 100/3 V; 3a-3n 30 VA at the voltage
100/3 V; 4a-4n 60 VA, cos = 1, at the voltage 100/3 V.
The residual winding da-dn was loaded by 450 VA, cos = 1, at the voltage 100/3 V.
The secondary windings of the CT part were loaded by powers: 1S1-1S2 90 VA cos = 1; 2S1-
2S2 45 VA cos = 1; 5S1-5S2 45 VA cos = 1; 6S1-6S2 60 VA, cos = 1.
Supply (current control) was applied to the secondary current windings 3S1-3S2 and 4S1-4S2 (par-
allel connected). Terminals P1 and P2/A were short-circuited at the range 3000 A.
The duration of the test was 8 h.
da-dn winding was wound by profiled wire Cu 2×4,5 mm (25 turns), A-N winding was wound by
wire Cu ∅ = 0,18 mm (47192 turns), remaining secondary current and voltage windings – see Ap-
pendix.
Stage No. 3: Test with thermal limit power
Test was done immediately after Stage No. 2 according to the IEC 60044-1 sub-cl. 4.6, 7.2, IEC
60044-2 sub-cl. 5.4 a), 8.1, and 13.6.1, IEC 60044-3 sub-cl. 4,2, 7.2b). The voltage value
Un = 63 kV was applied to the P2/A terminal.
According to Manufacturers request secondary voltage windings (i.e. 1a-1n, 2a-2n, 3a-3n and 4a -
4n) were loaded by limit power 1000 VA at cos = 1.
The residual winding remained open.
The secondary current winding of the CT part were loaded as follows: 1S1-1S2 90 VA, cos =
1; 2S1-2S2 45 VA, cos = 1; 5S1-5S2 45 VA, cos = 1; 6S1-6S2 60 VA, cos = 1.
Supply (current control) was applied to secondary current windings 3S1-3S2 and 4S1-4S2 (parallel
connected). Terminals P1 and P2/A were short-circuited at the range 3000 A.
The test was performed till reaching the steady state of the measured temperatures.
Windings 1a-1n, 2a-2n, 3a-3n and 4a -4n were wound with profile wire Cu 1,5 × 4,5 mm (43
turns). Secondary current windings – see Appendix.
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 7 / 18
Measuring instruments
The temperatures were measured by means of type K thermocouples (NiCr – NiAl) with accuracy
± 0,6oC
1.
The ambient temperature was measured using four mercurial thermometers immersed into tank
filled with oil. These thermometers were placed in the distance of 1 meter from the tested trans-
former at the height of 1 meter above floor- the accuracy of measurement ± 0,03°C2.
The resistance was measured by means of meter type 2291 manufactured by TETTEX Instruments
with accuracy ± 0,01 mΩ3
Fig. 1. Electrical diagram of terminal box of tested combined instrument transformer
1
The expanded uncertainty assigned corresponds to a coverage probability of 95 % and the coverage factor k = 2.
2The expanded uncertainty assigned corresponds to a coverage probability of 95 % and the coverage factor k = 2.
3The expanded uncertainty assigned corresponds to a coverage probability of 95 % and the coverage factor k = 2.
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 8 / 18
Fig. 2. Arrangement of thermocouples during temperature-rise tests :
1- oil (over current coil); 2- head (contraction of the flange connecting the head with
the insulator); 3- under the flange of tank lid; 4- lower tank (placed inside over earthing termi-
nal); 5- terminal P1 (contraction in flat part); 6 – terminal P2/A (3000 A, contraction in flat part).
65
2
1
3
4
I N
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Tab
le 1
. T
emp
era
ture-
rise
tes
t res
ult
s of
com
bin
ed i
nst
rum
ent
tra
nsf
orm
er
PV
A 1
23, se
ria
l n
o. 2G
KP
011
K1084
502
*)
No
. o
f th
er-
mo
cou
ple
T
emp
erat
ure
[°C
] a
fter
hea
tin
g t
ime
[h]
Sta
ge
No
. 1
0
1
2
3
4
56
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
1
15,5
7
19,3
0
21,7
7
24,2
5
26,0
8
27,8
3
31,0
5
32,2
3
34,5
0
35,2
5
34,1
5
36,0
3
35,5
3
36,8
0
36,7
0
39,4
3
39,0
3
39,9
0
40,0
6
41,0
0
41,3
6
41,8
0
2
15,5
7
18,0
5
20,8
0
22,7
7
24,2
5
25,5
0
27,5
5
28,5
8
29,2
8
30,2
5
30,8
0
28,1
3
31,4
5
33,0
0
32,9
3
35,0
1
27,2
8
35,2
5
35,2
0
35,7
8
36,0
8
36,4
0
3
13,8
2
14,0
7
14,3
2
14,9
2
16,8
2
17,0
0
16,6
0
17,2
7
17,2
7
18,0
5
17,2
2
17,3
0
14,6
5
17,5
2
16,7
7
18,5
7
17,6
7
17,7
5
17,8
0
17,8
5
18,0
0
17,6
0
4
14,3
2
14,4
7
14,5
7
14,6
0
17,0
7
17,3
5
17,2
7
17,8
5
17,8
7
18,3
2
18,0
2
17,9
7
17,5
7
17,9
5
17,6
0
19,1
5
18,2
7
18,0
5
18,5
0
18,6
0
18,3
0
18,3
7
5
15,3
2
35,8
0
37,0
1
37,1
6
39,0
3
40,3
3
42,1
8
41,3
3
40,1
8
41,9
8
41,7
0
40,8
8
41,7
5
43,3
6
44,0
0
45,0
1
45,0
1
44,8
3
44,6
3
45,0
0
45,1
8
44,9
8
6
15,5
7
36,2
8
36,7
8
37,2
1
39,3
8
40,9
8
42,4
3
41,7
0
40,6
5
42,3
1
42,1
8
41,2
6
42,3
6
44,0
0
44,3
8
45,3
6
45,3
1
45,0
6
45,1
1
45,3
6
45,6
8
45,4
1
Totr, °C
14,5
8
15,4
3
15,7
5
16,1
8
16,1
8
16,0
8
15,9
5
15,9
0
15,8
8
15,8
8
15,8
8
15,8
8
16,0
0
16,0
3
16,0
3
16,0
3
16,0
3
16,0
5
16,1
0
16,1
0
16,0
3
16,0
3
Uza
s, k
V
76,2
I zas
3S
1-3
S2//
4S
1-4
S2,
A
10,2
01
0,3
51
0,3
21
0,3
51
0,3
01
0,3
31
0,3
21
0,3
21
0,3
61
0,3
21
0,3
31
0,4
21
0,3
61
0,3
51
0,3
81
0,3
41
0,3
31
0,3
41
0,3
61
0,2
71
0,3
81
0,3
6
I z,
A
3042
3078
3066
3078
3066
3072
3072
3072
3078
3078
3078
3096
3084
3078
3084
3078
3072
3078
3078
3072
3084
3084
I P2/A
-N,
mA
2
8-
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
R1S
1-1
S2, m
Ω
508
,20
523
,62
530
,91
535
,28
542
,38
548
,37
555
,50
560
,89
566
,07
572
,14
576
,78
580
,93
583
,76
589
,30
593
,27
596
,71
601
,28
604
,07
606
,98
610
,51
614
,13
616
,01
R2S
1-2
S2, Ω
5,7
9
5,9
3
6,0
2
6,0
7
6,1
5
6,2
3
6,3
0
6,3
7
6,4
3
6,4
9
6,5
5
6,6
0
6,6
4
6,6
9
6,7
5
6,7
9
6,8
3
6,8
7
6,9
1
6,9
4
6,9
8
7,0
1
R3S
1-3
S2, m
Ω9
22
,36
- -
- -
- -
- -
- -
1045
,91
057
,2
1064
,4
1074
,5
1080
,4
1088
,0
1094
,11
099
,7
1106
,5
1112
,41
115
,6
R4S
1-4
S2, m
Ω8
28
,17
- -
- -
- -
- -
- -
936
,7
944
,6
956
,8
960
,2
965
,5
972
,2
977
,2
983
,3
988
,1
992
,8
996
,8
R5S
1-5
S2, Ω
10,6
2
10,8
3
10,9
6
11,0
7
11,2
0
11,3
4
11,4
9
11,6
0
11,7
2
11,8
4
11,9
4
12,0
3
12,1
1
12,2
7
12,3
0
12,3
8
12,4
6
12,5
4
12,6
0
12,6
8
12,7
4
12,7
9
R6S
1-6
S2, Ω
7,9
2
8,0
4
8,1
4
8,2
2
8,3
3
8,4
3
8,5
3
8,6
2
8,7
2
8,8
0
8,8
8
8,9
4
9,0
0
9,0
8
9,1
5
9,2
1
9,2
7
9,3
2
9,3
7
9,4
2
9,4
7
9,5
0
RP
1-P
2/A
, m
Ω
0,0
241
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
-
∆T
1S
1-1
S2
- 7
,59
11,1
7
13,3
2
16,8
1
19,7
6
23,2
7
25,9
2
28,4
7
31,4
5
33,7
4
35,7
8
37,1
7
39,9
0
41,8
5
43,5
4
45,7
9
47,1
6
48,5
9
50,3
3
52,1
1
53,0
4
∆T
2S
1-2
S2
- 5
,88
9,6
4
11,9
5
15,5
1
18,6
8
22,0
2
24,7
1
27,5
6
30,0
6
32,7
9
34,6
5
36,4
0
38,8
1
41,1
1
42,7
9
44,7
9
46,5
1
47,9
9
49,6
2
51,1
4
52,2
8
∆T
3S
1-3
S2
- -
- -
- -
- -
- -
- 3
3,4
8
36,5
5
38,5
0
41,2
4
42,8
4
44,9
0
46,5
5
48,0
7
49,9
1
51,5
1
52,3
8
∆T
4S
1-4
S2
- -
- -
- -
- -
- -
- 3
2,7
6
35,1
5
38,8
1
39,8
7
41,4
6
43,4
9
44,9
9
46,8
1
48,2
9
49,6
8
50,8
9
∆T
5S
1-5
S2
- 4
,92
7,8
8
10,5
0
13,6
7
16,9
7
20,3
1
23,0
6
25,8
6
28,5
2
31,0
2
33,1
4
34,9
2
38,7
6
39,5
4
41,2
8
43,2
6
45,0
4
46,6
0
48,3
1
49,7
3
50,8
8
∆T
6S
1-6
S2
- 3
,73
7,0
2
9,5
0
12,8
1
15,9
3
19,3
4
22,1
8
25,1
3
27,6
4
30,2
6
32,3
2
34,1
3
36,4
7
38,7
1
40,8
1
42,4
6
44,2
0
45,6
9
47,3
3
48,8
1
49,9
7
∆T
P1-P
2/A
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
I N
S T
Y T
U T
E
N E
R G
E T
Y K
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/ 1
8
Tab
le N
o.
1.
con
t.
Sta
ge
No.
1, co
nt.
.
0
1
2
3
4
56
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
R1a-
1n,
mΩ
4
6,0
3
46,3
4
47,0
3
46,6
6
46,7
7
46,8
6
46,9
3
46,9
7
47,0
4
47,0
4
47,1
0
47,1
0
47,1
1
47,1
4
47,1
7
47,1
9
47,2
2
47,3
0
47,2
5
47,2
7
47,1
6
47,2
9
R2a-
2n,
mΩ
47,8
0
48,0
9
49,7
5
48,4
7
48,5
9
48,6
9
48,7
7
48,8
1
48,8
7
48,8
6
48,9
2
48,9
2
48,9
5
48,9
9
49,1
3
49,0
4
49,0
7
49,0
4
49,0
9
49,1
1
49,2
9
49,1
4
R3a-
3n,
mΩ
50,6
9
50,9
7
51,3
2
51,1
3
51,2
4
51,3
4
51,4
3
51,4
8
51,5
4
51,5
9
51,6
5
51,6
5
51,6
9
51,7
4
51,8
4
51,8
0
51,8
3
51,8
9
51,8
6
51,8
7
51,9
1
51,8
9
R4a-
4n,
mΩ
52,0
3
52,3
0
53,4
3
52,6
9
52,8
1
52,9
2
53,0
1
53,0
6
53,1
2
53,1
9
53,2
4
53,2
6
53,3
0
53,3
5
53,5
5
53,4
1
53,4
4
53,6
2
53,4
6
53,4
9
53,5
1
53,5
0
Rda-
dn,
mΩ
26,8
3
26,9
5
26,9
6
27,1
3
27,2
0
27,2
4
27,2
9
27,3
1
27,3
4
27,3
5
27,3
9
27,3
9
27,4
0
27,4
2
27,4
4
27,4
6
27,4
7
27,4
8
27,4
9
27,5
0
27,5
2
27,5
1
RP
2/A
-N, kΩ
19,1
6
- 1
9,8
5
- 2
0,1
1
- 2
0,1
8
- 2
0,1
4
- 2
0,3
3
- 2
0,5
0
- 2
0,6
0
- 2
0,7
0
- 2
0,8
0
- 2
0,8
0
-
∆T
1a-
1n,
- 1
,66
5,4
3
3,4
3
4,0
0
4,5
0
4,9
1
5,1
3
5,4
7
5,4
7
5,8
3
5,7
9
5,8
5
6,0
5
6,2
0
6,3
1
6,4
9
6,8
9
6,6
4
6,7
6
6,1
6
6,8
2
∆T
2a-
2n,
- 1
,53
10,2
0
3,5
2
4,1
5
4,6
6
5,0
8
5,2
9
5,6
1
5,5
7
5,8
6
5,8
5
6,0
0
6,2
1
6,9
5
6,5
1
6,6
6
6,4
9
6,7
7
6,8
5
7,8
0
7,0
1
∆T
3a-
3n,
- 1
,36
3,1
3
2,1
7
2,7
2
3,2
2
3,6
6
3,9
1
4,1
7
4,4
5
4,7
4
4,7
4
4,9
5
5,1
8
5,6
5
5,4
9
5,6
0
5,9
0
5,7
6
5,8
3
5,9
9
5,9
2
∆T
4a-
4n,
- 1
,29
6,7
0
3,1
4
3,7
2
4,2
4
4,6
8
4,9
5
5,2
4
5,5
6
5,8
2
5,8
8
6,1
0
6,3
4
7,2
8
6,6
1
6,7
6
7,6
4
6,8
8
6,9
8
7,1
1
7,0
7
∆T
da-
dn,
- 1
,16
1,1
9
2,8
0
3,4
3
3,8
1
4,3
1
4,5
3
4,7
8
4,8
8
5,2
0
5,2
0
5,3
7
5,5
1
5,7
3
5,8
5
5,9
9
6,0
9
6,1
9
6,2
8
6,4
0
6,3
4
∆T
P2/A
-N,
-
- 9
,00
12,4
0
13,3
1
12,7
9
15,2
7
17,4
8
18,7
9
20,0
9
21,4
0
21,4
0
Def
lect
ion
of
the
oil
lev
el
ind
icat
or
mm
.
0
0,2
0
,9
0,9
1
1,2
1
,5
1,6
1
,6
1,7
1
,7
1,9
2
,1
2,2
2
,2
2,3
2
,5
2,6
2
,7
2,9
3
3
I N
S T
Y T
U T
E
N E
R G
E T
Y K
I
LA
BO
RA
TO
RIU
M W
IEL
KO
PR
DO
WE
Tes
t R
epo
rt N
o.
EW
P/6
9/E
/2011e
Pag
e
11
/ 1
8
Tab
le N
o.
1.
con
t.
No
. o
f th
er-
mo
cou
ple
Tem
per
atu
re [
°C]
aft
er h
eati
ng t
ime
[h]
Sta
ge
No.
1, co
nt.
S
tage
No.
2
Sta
ge
No.
3
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
41,9
3
42,8
5
43,3
1
43,6
5
44,4
3
44,6
8
44,4
6
44,9
8
44,6
8
44,8
3
44,7
0
45,1
3
45,6
5
44,9
5
45,0
6
45,0
6
45,8
0
45,8
3
46,1
3
2
36,4
3
37,2
3
37,7
0
37,9
3
38,6
3
37,9
0
37,3
3
37,6
3
37,3
0
37,4
5
37,5
5
37,2
5
37,7
0
38,0
8
38,2
8
38,7
3
39,3
5
39,4
0
39,7
5
3
17,6
5
18,1
7
18,1
2
18,1
7
18,2
5
18,5
5
18,9
5
19,7
7
19,7
0
19,8
2
19,6
2
19,9
2
20,1
5
20,3
5
20,6
7
21,6
0
21,3
2
21,8
7
22,0
2
4
18,3
2
18,7
0
19,1
2
19,5
7
18,8
0
19,4
2
20,1
0
21,0
2
21,2
7
21,5
5
21,6
5
21,5
0
21,8
7
22,4
0
22,5
5
23,2
8
24,0
0
24,0
5
24,1
3
5
45,0
3
45,6
8
45,9
3
46,7
3
46,2
8
44,1
1
44,0
6
43,9
8
43,8
5
44,0
0
43,9
8
44,0
0
44,2
1
44,5
3
44,8
5
45,7
8
46,4
8
46,5
3
46,6
5
6
45,5
0
46,2
6
46,7
0
46,8
3
46,7
8
44,6
3
44,2
1
44,4
6
44,3
8
44,3
1
44,2
3
44,3
8
44,5
8
44,7
0
44,8
0
45,5
8
46,5
8
46,7
8
46,9
0
Tam
b.a
vr, °
C1
6,0
3
16,0
3
16,0
3
16,0
0
15,9
8
16,0
8
16,2
5
16,2
8
16,2
5
16,2
5
16,2
8
16,2
8
16,3
5
16,5
8
16,5
0
16,4
8
16,5
0
16,4
8
16,5
3
Usu
pply,
kV
7
6,2
1
19
,7
63
I supp.
3S
1-3
S2//
4S
1-
4S
2,
A
10,3
51
0,3
51
0,3
51
0,3
01
0,3
11
0,3
41
0,3
31
0,3
71
0,3
51
0,3
41
0,3
41
0,3
61
0,3
41
0,3
31
0,3
31
0,3
41
0,3
51
0,3
41
0,3
4
I z,
A
3078
3084
3078
3066
3066
3072
3072
3048
3072
3072
3078
3078
3072
3072
3072
3072
3078
3072
3072
I P2/A
-N,
mA
-
- -
- -
42
- -
- -
- -
- 6
0
- -
- -
-
R1S
1-1
S2, m
Ω
617
,95
620
,38
622
,79
624
,75
625
,96
627
,25
629
,55
630
,30
632
,16
632
,84
633
,37
635
,39
634
,78
635
,58
637
,48
637
,14
637
,30
638
,27
639
,15
R2S
1-2
S2, Ω
7,0
3
7,0
6
7,0
8
7,1
1
7,1
3
7,1
4
7,1
6
7,1
8
7,1
9
7,2
0
7,2
1
7,2
2
7,2
3
7,2
3
7,2
4
7,2
4
7,2
5
7,2
6
7,2
6
R3S
1-3
S2, m
Ω1
119
,3
1125
,0
1127
,9
1131
,7
1134
,5
1136
,4
1139
,5
1142
,6
1144
,3
1146
,1
1147
,9
1149
,7
1150
,7
1151
,5
1152
,7
1153
,9
1155
,1
1155
,1
1157
,5
R4S
1-4
S2, m
Ω1
000
,9
1004
,9
1008
,1
1011
,4
1013
,9
1016
,2
1018
,8
1021
,1
1023
,1
1024
,6
1026
,2
1027
,7
1029
,0
1029
,4
1030
,4
1031
,2
1032
,5
1032
,4
1033
,7
R5S
1-5
S2, Ω
12,8
4
12,8
9
12,9
3
12,9
8
13,0
1
13,0
4
13,0
8
13,1
0
13,1
3
13,1
5
13,1
7
13,1
9
13,2
1
13,2
1
13,2
2
13,2
3
13,2
5
13,2
5
13,2
7
R6S
1-6
S2, Ω
9,5
5
9,5
8
9,6
2
9,6
5
9,6
7
9,7
0
9,7
2
9,7
4
9,7
6
9,7
8
9,8
0
9,8
1
9,8
2
9,8
2
9,8
4
9,8
4
9,8
5
9,8
6
9,8
6
RP
1-P
2/A
, m
Ω
- -
- -
- -
- -
- -
- -
- -
- -
- -
0,0
25
∆T
1S
1-1
S2
53,9
9
55,1
8
56,3
7
57,3
3
57,9
3
58,5
6
59,7
0
60,0
6
60,9
8
61,3
1
61,5
8
62,5
7
62,2
7
62,6
6
63,6
0
63,4
3
63,5
1
63,9
9
64,4
2
∆T
2S
1-2
S2
53,4
8
54,6
7
55,6
7
56,6
3
57,5
0
58,1
8
58,9
4
59,6
7
60,2
4
60,7
7
61,1
9
61,6
7
62,0
4
62,1
7
62,4
2
62,6
1
62,9
8
63,1
9
63,4
8
∆T
3S
1-3
S2
53,3
8
54,9
2
55,7
1
56,7
4
57,5
0
58,0
1
58,8
5
59,6
9
60,1
6
60,6
4
61,1
3
61,6
2
61,8
9
62,1
1
62,4
3
62,7
6
63,0
8
63,0
8
63,7
3
∆T
4S
1-4
S2
52,1
4
53,3
5
54,3
2
55,3
1
56,0
7
56,7
6
57,5
5
58,2
4
58,8
4
59,3
0
59,7
8
60,2
3
60,6
2
60,7
5
61,0
5
61,2
9
61,6
8
61,6
5
62,0
4
∆T
5S
1-5
S2
52,2
7
53,4
2
54,2
9
55,3
5
56,2
0
56,9
5
57,7
8
58,3
9
59,0
7
59,4
9
59,9
9
60,4
1
60,8
6
60,9
3
61,1
4
61,4
0
61,7
8
61,9
2
62,2
2
∆T
6S
1-6
S2
51,3
0
52,4
5
53,5
0
54,4
6
55,3
2
56,0
8
56,8
1
57,5
5
58,1
1
58,6
5
59,1
6
59,5
8
59,9
8
60,0
4
60,4
5
60,5
1
60,8
2
61,1
1
61,3
6
∆T
P1-P
2/A
- -
- -
- -
- -
- -
- -
- -
- -
- -
9,3
4
I N
S T
Y T
U T
E
N E
R G
E T
Y K
I
LA
BO
RA
TO
RIU
M W
IEL
KO
PR
DO
WE
Tes
t R
epo
rt N
o.
EW
P/6
9/E
/2011e
Pag
e
12
/ 1
8
Tab
le N
o.
1,
con
t.
Sta
ge
No.
1, co
nt.
S
tage
No.
2, co
nt.
S
tage
No.
3, co
nt.
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
R1a-
1n,
mΩ
4
7,2
9
47,3
0
47,3
1
47,3
3
47,3
5
47,8
2
48,3
6
48,6
4
48,7
9
48,7
2
48,7
8
48,8
3
48,8
7
50,0
7
50,3
7
50,6
4
50,8
1
50,8
7
50,9
2
R2a-
2n,
mΩ
49,1
3
49,1
5
49,1
6
49,1
7
49,1
8
49,7
2
50,2
9
50,3
4
50,4
4
50,6
4
50,7
3
50,7
8
50,8
1
52,3
1
52,6
2
52,8
2
53,0
4
53,2
5
53,2
3
R3a-
3n,
mΩ
51,9
0
51,9
2
52,0
2
51,9
4
51,9
6
52,8
4
53,1
8
53,3
5
53,5
0
53,5
8
53,6
8
53,7
2
53,7
7
55,1
1
55,4
7
55,6
9
55,9
4
55,9
3
56,0
5
R4a-
4n,
mΩ
53,5
1
53,5
2
53,6
8
53,5
6
53,5
6
54,5
6
54,9
1
55,1
0
55,2
7
55,3
4
55,4
6
55,5
0
55,5
4
57,0
0
57,4
2
57,6
5
57,9
5
57,9
7
58,0
5
Rda-
dn,
mΩ
27,5
2
27,5
2
27,5
3
27,5
3
27,5
3
28,1
2
28,3
4
28,4
2
28,5
3
28,5
6
28,5
9
28,6
4
28,6
4
29,4
5
29,7
5
29,8
9
30,0
7
30,0
9
30,1
2
RP
2/A
-N, kΩ
20,8
5
- 2
0,8
5
- 2
0,8
5
- 2
0,5
8
- 2
0,8
1
- 2
0,8
8
- 2
0,8
8
- 2
0,9
0
- 2
1,1
0
- 2
1,3
0
∆T
1a-
1n,
6,8
5
6,9
0
6,9
8
7,0
4
7,2
0
9,7
4
12,6
8
14,1
8
14,9
8
14,6
2
14,9
6
15,2
2
15,4
3
21,9
6
23,5
6
25,0
2
25,9
8
26,2
9
26,5
5
∆T
2a-
2n,
6,9
8
7,0
5
7,1
3
7,1
5
7,2
1
10,0
6
13,0
1
13,3
0
13,8
4
14,8
5
15,3
2
15,6
2
15,7
5
23,5
7
25,2
1
26,2
8
27,4
2
28,4
9
28,4
2
∆T
3a-
3n,
5,9
6
6,0
6
6,5
4
6,1
7
6,2
4
10,6
1
12,2
7
13,1
2
13,8
8
14,2
5
14,7
3
14,9
5
15,1
9
21,8
1
23,5
8
24,6
7
25,9
1
25,8
6
26,4
4
∆T
4a-
4n,
7,1
2
7,1
5
7,9
0
7,3
3
7,3
3
12,1
4
13,8
0
14,7
4
15,5
4
15,9
1
16,4
5
16,6
7
16,8
5
23,8
7
25,8
7
27,0
1
28,4
2
28,5
4
28,9
2
∆T
da-
dn,
6,4
0
6,4
3
6,5
4
6,5
8
6,5
8
12,0
2
14,0
5
14,8
5
15,8
7
16,1
5
16,4
1
16,9
1
16,8
7
24,4
1
27,2
0
28,5
1
30,2
3
30,3
9
30,6
4
∆T
P2/A
-N,
2
2,0
5
22,0
5
22,0
5
18,5
3
21,5
3
22,4
4
22,4
4
22,7
0
25,3
1
27,9
2
Def
lect
ion
of
the
oil
lev
el
ind
icat
or
cm.
3,1
3
,1
3,2
3
,2
3,2
3
,2
3,2
3
,3
3,3
3
,4
3,4
3
,4
3,4
3
,6
3,6
3
,6
3,7
3
,7
3,7
*) M
arked
wit
h „
-„ a
re v
alue
no
t m
easu
red
(ag
reed
wit
h O
rder
er)
I z –
tes
t p
rim
ary c
urr
ent
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 13 / 18
Table No. 2. Temperature-rises [K] given during the tests
Combined instrument transformer PVA 123 serial no. 2GKP011K1084502*)
Winding ∆ϑ∆ϑ∆ϑ∆ϑ
after Stage No. 1
∆ϑ∆ϑ∆ϑ∆ϑ
after Stage No. 2
∆ϑ∆ϑ∆ϑ∆ϑ
after Stage No. 3
∆ϑ ∆ϑ ∆ϑ ∆ϑdop
1S1-1S2 57,93 62,27 64,42
75 1) 3)
2S1-2S2 57,50 62,04 63,48
3S1-3S2 57,50 61,89 63,73
4S1-4S2 56,07 60,62 62,04
5S1-5S2 56,20 60,86 62,22
6S1-6S2 55,32 59,98 61,36
P1-P2/A Not measured Not measured 9,34
1a- 1n 7,20 15,43 26,55
75 2)3)
2a-2n 7,21 15,75 28,42
3a-3n 6,24 15,19 26,44
4a-4n 7,33 16,85 28,92
da-dn 6,58 16,87 30,64
P2/A-N 22,05 22,44 27,92
Thermocouple ∆ϑ ∆ϑ ∆ϑ ∆ϑ after Stage
No. 1
∆ϑ∆ϑ∆ϑ∆ϑ after Stage
No. 2
∆ϑ∆ϑ∆ϑ∆ϑ after Stage
No. 3 ∆ϑ ∆ϑ ∆ϑ ∆ϑdop
No. Location
1 Oil 28,46 29,3 29,61 551), 2), 3)
2 Head – top
part next to
terminal
22,65 21,35 23,23
404)
3 Under the
tank lid from
side of ter-
minal box
2,27 3,80 5,5
4 Enclosure of
lower tank 2,82 5,52 7,6
5 Terminal P1
(contraction
in flat part) 30,31 27,86 30,13 65
4)
6 Terminal
P2/A (con-
traction in flat
part)
30,8 28,23 30,38 654)
1) acc. to IEC 60044-1:1996,
2) acc. to IEC 60044-2:1997,
3) acc. to IEC 60044-3:2002,
4) acc. to IEC 62271-1:2007,
∆ϑ∆ϑ∆ϑ∆ϑ - temperature-rise; ∆ϑ∆ϑ∆ϑ∆ϑdop – permitted value in steady state
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 14 / 18
6. Summary
In tested combined instrument transformer type PVA 123, with composite insulator , as results of
temperature rise test with current Icth= 3000 A:
- in steady state, at the rated load of secondary current and voltage windings (without residual
winding) , at cos = 1 and supply voltage 1,2Un (Stage No. 1), permitted temperature-rise limits
were not exceeded.
The tested combined transformer met requirements of IEC 60044-3:2002, IEC 60044-1:1996,
IEC 60044-2: 1997, IEC 60044-2:1997/A2:2002 and IEC 62271-1: 2007 standards.
- results of test 8 h at supply voltage 1,9Un and rated load of current and voltage windings at
cos = 1 and load of residual winding with thermal limit power (Stage No. 2), shows that permit-
ted temperature-rise limits were not exceeded.
The tested combined transformer met requirements of IEC 60044-3:2002, IEC 60044-1:1996,
IEC 60044-2: 1997, IEC 60044-2:1997/A2:2002 and IEC 62271-1: 2007 standards.
- results of test with thermal limit power (Stage No. 3) at rated load of current windings at
cos = 1 and supply voltage Un, and at the same time loading of all voltage windings (without re-
sidual windings) with thermal limit power, shows that permitted temperature-rise limits were not
exceeded.
The tested combined transformer met requirements of IEC 60044-3:2002, IEC 60044-1:1996,
IEC 60044-2: 1997, IEC 60044-2:1997/A2:2002 and IEC 62271-1: 2007 standards.
7. Opinions and interpretations
None
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 15 / 18
8. Photographic documentation
Photograph No. 1. Combined transformer on the test stand during temperature-rise test.
Photograph No. 2. The conductors short-circuiting of P1-P2A terminals.
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 16 / 18
Photograph No. 3. Terminal box of tested combined transformer during temperature-rise test.
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 17 / 18
APPENDIXDocumentation delivered by the Orderer
I N S T Y T U T E N E R G E T Y K I
LABORATORIUM WIELKOPRDOWE
Test Report No.
EWP/69/E/2011e
Page 18 / 18