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HIGH POWER LABORATORYCENTRAL POWER RESEARCH INSTITUTE,P. B.NO. 8066, SADASmV ANAGAR SUB P.O
PROF. SIR.C.V. RAMAN ROAD, BANGALORE-560 080, INDIAPHONE: + 9]- (0) 80-23600574, FAX: + 91 (0) 80-23601213
CPRIch.
Test Report Number
Name & Address of the Customer
Name & Address of the Manufacturer
Particulars of sample testedSampleTypeDesignationSerial numberNumber of samples testedDate(s) of Test(s)CPRI Sample Code No.Condition of sample on receipt
Particulars of tests conductedTest in accordance withStandard/SpecificationSampling PlanCustomer's requirementDeviation if anyName of the witnessing persons
Customer's representative
NABL ACCREDITEDLABORATORY
Certificate No. TOOlO
Sheet No.1 of 8
TEST REPORT
: HPL07077 Dated: 26/06/2007
: Mis. Supreme Power Equipment Pvt Ltd.,No: 55, S1DCOIndustrial Estate,Thirumazhisai, Chennai-602107.
: Mis. Supreme Power Equipment Pvt Ltd.,No: 55, SIDCO Industrial Estate,Thirumazhisai, Chennai-602107.
: 16 MVA, 33 kV / 11kV, 3phase Transformer: Conventional Type, Oil cooled.: Power Transformer: SPEL/2081: One
: 10thApril 2007: HPL07S0089: New
: Dynamic ability to withstand short-circuit test.
: 1S:2026- Part-l (1977):Nil:Nil: Nil
: Mr. B. Sivaramakrishnan, Sr. Manager(QA): Mr. G. Sundaresan
Other than Customer's representativeTest subcontracted with address of
the laboratory : No load loss, load loss measurement, Induced overvoltage test and separate source voltage withstand testconducted at Mls.Supreme Power Equipment Pvt. Ltd.,
Chennai. - 602 107.Documents constituting this report (In words)
Number of sheets : EightNumber of oscillograms : NineNumber of photographs : ThreeNumber of test circuit diagrams : OneNumber of sample drawings : Four
~rr4~(G.Sengupta)
ADDJTIONAL DIRECTORAUTHOR]SED SIGNATORIES
HIGH POWER LABORATORYCENTRAL POWER RESEARCH INSTITUTE,P. B.NO. 8066, SADASHIVANAGAR SUB P.O
PROF. SIR.C.V. RAMAN ROAD, BANGALORE-560 080, INDIAPHONE: + 91- (0) 80-23600574, FAX: + 91 (0) 80-23601213
CPRITest Report No. HPL07077
NABL ACCREDITEDLABORATORY
Certificate No.TOOIO
Sheet No.2 of 8
DESCRIPTION OF SAMPLE TESTED
(As assigned by the manufacturer)
Sample
Rated power MVA
Rated voltage HV (volts)
LV (volts)
Rated current HV (Amps)
LV (Amps)
Number of phases
Connection symbol
Type of cooling
Rated frequency (Hz)
Temperature rise of oil (OC)
Tapping range
Tap No.
% tap variation
% impedance
X/R Ratio
App"arentshort circuit power
behind transformer (MYA)
Winding material
Insulation level
HV WindingLV Winding
Guaranteed no-load loss
(on principal tapping in watts)
: Power Transformer
: 16
: 33000
: 11000
: 279.9
: 839.8
: Three
: Dynl1
:ONAF
: 50
: 50
: + 5% to -15 % in steps of 1.25%
17
-15
10.40
25.79
: 1000
: Copper
: 170kVPeak/70 kVrms: 75 kV Peak I 28 kV rms
: 9900(Max)
Guaranteed load loss at 75°C(on principal tapping in watts) : 59700
Guaranteed % impedance at 75° C
(on principal tapping) : 1O%:t 10%
\\Ux\LU!9' /(S.Suafi'akaraRedd~TEST ENGINEER .
: 1 5
: +5 0
:9.38 9.61
: 27.25 26.30
HIGH POWER LABORATORYCENTRAL POWER RESEARCH INSTITUTE,P. B.NO. 8066, SADASHIVANAGAR SUB P.O
PROF. SIR.C.V. RAMAN ROAD, BANGALORE-560 080, INDIAPHONE: + 91- (0) 80-23600574, FAX: + 91 (0) 80-23601213
NABL ACCREDITEDLABORATORY
Certificate No.TOOIO
CPRITest Report No HPL07077 Sheet No.3 of 8
SUMMARY OF TEST
1.0 Test conducted : Dynamic ability to withstand short-circuit test.
2.0 Rating for which tested
Tapping position I % Z at75° C
X/R
: Short-circuit currents determined as per clause 9.1.2 ofIS: 2026 - Part-I (1977
Required short-circuit current on LV (phase)with rated voltage a lied to HV*kA eak kA rms.
19.28 7.5618.58 7.2916.42 6.44
9.389.61
10.40
27.2526.3025.79
* Considering the source impedance based on 1000 MYA and voltage of 36 kV
3.0 Schedule of short-circuit test results : As per sheet no. 5 of 8
4.0 Schedule of routine test results : As per sheet no. 6 of 8 & sheet no. 7 of 8
5.0 Oscillogram numbers : HPL07077.s002, S003, S004,
HPL07077.S006, S007, S008,
HPL07077.S01O,SOII& SO12.
6.0 Test circuit number : CRTL/HPLffR12