Partial Part ial Discharge Disc harge Mea Measu surements rements on Instrument Instru ment Transfor Transfor mers Dr. Mich ael Krüg er (c) OMI OMICRON CRON
Faults ult s on Instrum nst rume ent Transformers ransfor mers Print document In order to print this document from Scribd, you'll first need to download it. Cancel
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Faults ult s on Instrum nst rume ent Transformers ransfor mers Print document In order to print this document from Scribd, you'll first need to download it. Cancel
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Faults ult s on Instrum nst rume ent Transformers ransfor mers Print document In order to print this document from Scribd, you'll first need to download it. Cancel
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Faults ult s on Instrum nst rume ent Transformers ransfor mers Print document In order to print this document from Scribd, you'll first need to download it. Cancel
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Electrical lectri cal Mea Me asure sur ement Metho Methods ds for Print document Instrum nst rume ent T ransformers ransfor mers In order to print this document from Scribd, you'll first need to download it.
Meas urem ent Method
AppCancel lic ation
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Oil Diagnosis (Water Content, Breakdown
Routine Test
Voltage , DGA ...) Tan-Delta / PF Dielectric Dielectric Response
Insulation Diagnosis, Diagnosis , Ageing, Moisture Insulation Diagnosis, Diagnosis , Ageing, Moisture
Periodical Tests e.g. every every 7 y ears
FRT*
FRT
Karl-Fisch scher Titration, DGA
FRT
Karl-Fisch scher Titration, DGA
FRT
DG A
T
Partial Discharge
Insulation Diagnosis, Diagnosis , Partial
Measurement
Discharges
Ratio VT
Ac c urac y
After Outage, Oil Values
FRT
Ratio CT
Ac c urac y
Wrong Current Readings
FRT
Exci xcitation Cur Current VT
Cor Core Faults, Shorted Turns
After Out Outage, Oil Oil Val Values
FT
Ex c itation Current CT
Knee Point Voltage
M alfunc tion of the Protec tion
FRT
*F=Fingerprint, R=Routine, T=Troubleshooting
Printordi document PD Ci rcui rc uitt accor acc ding ng to IEC IEC60270 0270 In order to print this document from Scribd, you'll first need to download it. Cancel
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(IEC 60270)
PD Testin st ing g Print on document Instrum Instr ume ent Transf Transfor ormers mers In order to print this document from Scribd, you'll first need to download it.
Example Exampl e Ur Ur = 10kV 10kV Cancel
1 min
28kV
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< 20pC
7kV
Des Des i gn of a Print MVdocument Epoxy Epox y Type Type Voltage ol tage Trans Transfo form rme edocument r from Scribd, you'll In order to print this first need to download it. Cancel
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Source: RITZ Technical Dictionary Inst rument Transformers
Faults ul ts on MV Epoxy po xy Type Instru Inst rument ment Print document Transformers In order to print this document from Scribd, you'll first need to download it. Cancel
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rmer Explod Expl oded ed 6.6 6.Print 6kVdocument Vol Voltage tage Trans Transfo form er In order to print this document from Scribd, you'll first need to download it. Cancel
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HV Transfor ransf ormer mer wit w ith h Coup Coupli ling ngCapacitor, pacit or, Print document Quadripol uadri pol e a ndto print PD Instrum Instrfromume nt In order this document Scribd,e you'll first need to download it. Cancel
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document Generati Generation on Print of the th e 150 150H Hz Te Test V oltage ol tage wit w ith h In order to print this document from Scribd, you'll CPC100 + TR7 first need to download it. Cancel
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Print document Good CT wit w ith h PD < 10pC 10pC at 12k 12k V In order to print this document from Scribd, you'll first need to download it. Cancel
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Consp on spic icuou uous s Vol Vdocument oltage tage Transfor ransf ormer mer Print PD > 500pC 500pC at 8kV In order to print this document from Scribd, you'll first need to download it. Cancel
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Haza Hazarr dous do us PD on a Volt ol t age Tr ansf ans f ormer or mer Print document TE = 2nC 2nC at 2.5kV! 2.5kV! In order to print this document from Scribd, you'll first need to download it. Cancel
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Print document
High Hig h Hydr Hyd r o g ene on o n a 123kV 123kV VT VT-CT -CT In order to print this document from Scribd, you'll first need to download it. Cancel
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PD Mea Measu surr ements ment s on o n GIS GIS Vol Voltage tage Trans Transfo form rmers ers Print document In order to print this document from Scribd, you'll first need to download it. Cancel
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GIS GIS Voltage ol tage Print Tr Tr ansf ans f orm or m er document In order to print this document from Scribd, you'll first need to download it. Cancel
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Print e document Techni ch nical cal Asse Ass ssment ss ment In order to print this document from Scribd, you'll first need to download it.
Test Voltage: Voltage: 1.2 x Um / √3 = 1.2 x 242 / √3 = 170 170 k kV V Cancel
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Techni ch nical cal Asse Ass essment ss ment In order to print this document from Scribd, you'll first need to download it.
Calculation of the test current
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Voltage Transformer Data
Cancel
Prim ary voltage
UPrim
242 [kV] [kV]
Sekundary voltage
USec
0,11 0,11 [kV] [kV]
Maxim um operation voltage
Um
245 [kV] [kV]
Operation voltage
U
230 [kV]
Capacitance of the busbar -B3
CGIS
600 600 [pF] [pF]
Capacitance of the voltage transform er
CTP
300 300 [pF] [pF]
Capa Capacit citan ance ce of the the HV HV SF6 SF6 - outd outdoo oorr bush bushin ing g
CTrav
400 400 [pF] [pF]
Cpac Cpacit itan ance ce of the the coup coupli ling ng capa capaci cito torr 300 300 kV
CCondo
300 300 [pF] [pF]
Total capacitance
Ctot
Test Data Test voltage Test frequency
1.2 * Um / V3 f
Calculation Calculation of the Capacita Capacitances nces
1600 1600 [pF] [pF]
170 [kV] 60 [Hz]
Calculation Calculation of the Test Curre nt Prim ary current (245kV)
IPrim
0,103 0,103 [A] [A]
Secondary current (110V)
ISec
226 [A]
Needed test power = 75V * 226A
S
17 [kVA]
Test Setup
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In order to print this document from Scribd, you'll GIS GIS first need to download it. Gas volu me B4 Gas volume B3
GIS SF6 / outdoo r bushing
> 01.31.13034 01.31.13034 Omicron - Cancel Diag.-Woch Diag.-Woche e - TE TAnd E 220 Spgswandler Download Print kV Spgswandler
CP CR6
CP CR6 Coupling capacitor 333pF / 300kV
CP CR6
CP CR6
CP TR8 Quadri pole
CPC100
PD instrument MPD600
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110V 10V Measur Measureme ement nt Ci rcui rc uitt
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> 01.31.13034 01.31.13034 Omicron - Cancel Diag.-Woch Diag.-Woche e - TE TAnd E 220 Spgswandler Download Print kV Spgswandler I = 226A
Resonance:
ω
ω
Setup - 110V Side Print document
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Matchi Matchi ng transform er and and compensation reactors
CPC100 (Source) Second Second ary termi termi nals PAGE 24
Print document Setup to print this document from Scribd, you'll 242kV 242kV Side Sid eInfirstorder need to download it.
Coupling Caoacitor Caoacitor 333pF 300kV wit h Quadripole Quadripole and MDD600
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PD Calibr ali bratio ation n wit w ith h 100 100pC pC In order to print this document from Scribd, you'll first need to download it. Cancel
PD Calibrator
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PD L evel < 6pC 6Print pCdocument at 170kV 170kV In order to print this document from Scribd, you'll first need to download it. Cancel
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