Scribd
Upload
26 views2 pages

Sebelum Maintenance Closing: Open Open Open

The document contains measurements from a power transformer before and after maintenance. It measured closing time, opening time, resistance values, and insulation resistance on the transformer terminals. The measurements indicate the closing time, opening time, and insulation resistance mostly improved after maintenance, while the resistance values remained abnormal.

Uploaded by

Rizky Khairunnisa
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
26 views2 pages

Sebelum Maintenance Closing: Open Open Open

The document contains measurements from a power transformer before and after maintenance. It measured closing time, opening time, resistance values, and insulation resistance on the transformer terminals. The measurements indicate the closing time, opening time, and insulation resistance mostly improved after maintenance, while the resistance values remained abnormal.

Uploaded by

Rizky Khairunnisa
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 2

Sebelum maintenance closing

mea
s closing time (ms) closing time max (ms) closing sync (ms) assessment
R 105,90 normal
S 105,50 105,90 2,30 normal
T 103,60 normal

Sesudah maintenance closing


mea
s closing time (ms) closing time max (ms) closing sync (ms) assessment
R 104,30 normal
S 102,50 104,30 1,80 normal
T 103,80 normal

Sebelum maintening opening


mea
s open time (ms) open time max (ms) open sync (ms) assessment
R 32,80 normal
S 32,40 32,80 0,40 normal
T 32,70 normal

Sesudah maintening opening

mea opening time opening time max


s (ms) (ms) opening sync (ms) assessment
R 32,50 normal
S 32,70 32,70 0,20 normal
T 32,70 normal

Sebelum maintenance nilai resistansi


meas I DC I AC R assessment
R 100,29 A 10,557 mV 19,9 µΩ abnormal
S 99,71 A 14,935 mV 9,7 µΩ abnormal
T 99,82 A 8,540 mV 12,1 µΩ abnormal

Sesudah maintenance nilai resistansi


meas I DC I AC R assessment
R 99,79 A 12,805 mV 4,7 µΩ abnormal
S 110,25 A 13,012 mV 3,8 µΩ abnormal
T 99,68 A 11,263 mV 4,1 µΩ abnormal

Sebelum maintenance tahanan isolasi


CB in OPEN position Voltage : 5000 VDC > 1GΩ
Terminals
Duratio
Guar Temp (°C) Pole A Pole B Pole C
Tested Grounded n
d
TRAFO SIDE GEN SIDE   30 60 sec 20,10 GΩ 10,65 GΩ 16,90 GΩ

CB in CLOSE position Voltage : 5000 VDC > 1GΩ


Terminals
Duratio
Guar Temp (°C) Pole A Pole B Pole C
Tested Grounded n
d
TRAFO SIDE GEN SIDE   30 60 sec 11,71 GΩ 96,00 GΩ 83,30 GΩ

sesudah maintenance tahanan isolasi


CB in OPEN position Voltage : 5000 VDC > 1GΩ
Terminals
Duratio
Grounde Guar Temp(°C) Pole A Pole B Pole C
Tested n
d d
TRAFO SIDE GEN SIDE   30 60 sec 28,43 GΩ 13,72 GΩ 19,73 GΩ

CB in CLOSE position Voltage : 5000 VDC > 1GΩ


Terminals
Duratio
Grounde Guar Temp(°C) Pole A Pole B Pole C
Tested n
d d
TRAFO SIDE GEN SIDE   30 60 sec 20,80 GΩ 109,51 GΩ 100,30 GΩ

You might also like