(10) insulation resistance javid sodagar
TRANSCRIPT
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Minimum IR Value for Rotating Machine
Machine Terminal to Terminal Voltage 0.44
IR (Min) for Machine 1.44
Minimum IR Value for Transformer
Frequency 50
Voltage Rating of winding under Test 440
Rated Capacity of inding under Test !."
#elect Type of Transformer Tan$ %il Filled T.C !
ithout Tan$ %il filled T.C
&ry or Compound Fill T.C
IR (Min) for Transformer 521.8
MINIMUM Insulation Resistance Value
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Minimum IR Value for Cable
Type of Ca'le
(V) Type of *nsulation Material
&iameter of Conductor
Thic$ness of +ac$et *nsulation
Thic$ness of Conductor *nsulation
IR Value (Min) for Cable
Minimum IR Value for Domestic W
,- !/ o of %utlet )ll 1oint21lugs with Fitting3amp etc//
Volt IR(min) value Excellent
(V) / o of %utlet )ll 1oint21lugs without Fitting3amp etc//
IR(min) value Excellent
Jinesh.!armar"#iu$armar%&ahoo.com" '
MΩ
MΩ
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Multicore
Varnished
5 mm0 mm
!0 mm "4
! mm
1242.*
iring
40
1.25
5
2.00
'.elecricalnoes.'or$ress.c
MΩ
MΩ
MΩ
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50 ,-
! !.5
0
0
!.5
!
4
5
"
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5 ,-
!
0
0
1aper "40 ! Core
Varnished 4"0 Multicore
Thermo1lastic61olyethylene 50000Composite61olyethylene 0000
1oly7inyle Chloride "08C/ 500
1oly7inyle Chloride 958C/ 000
4"0 "4
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ame of :quipment
Rated Voltage of :quipment 0
Recommended Megger #i-e !00V &C or
Reference Temperature 8C/ 40
+ae Tem$eraure (,C)
!6+an6!0 4 1.15
!6Fe'6!0 5" -.-
!6Mar6!0 4 55 2.8-
!6)pr6!0 5 0 .5
!6May6!0 5 .5*
6May6!0 4 .//
6May6!0 4 .//
56May6!0 5 !0 .1-
"6May6!0 .
96May6!0 .
;6May6!0 .
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Volt
0V &C
-.45 .45 !6+an6!0
/./ ".0" !6Fe'6!0
11.-1 !!.! !6Mar6!0
2.5 .50 !6)pr6!0
2.8* .;9 !6May6!0
1.-2 !. 6May6!0
1.-2 !. 6May6!0
./- 0." 56May6!0
. "6May6!0
. 96May6!0
. ;6May6!0
.
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&ahoo.com" '''.elecricalnoes.'or$ress.com
1 2 - M a y - 1 0
1 - J a n - 1 0
Value (MΩ)
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!00 !00V &C or 50V &C
00 !00V &C or 50V &C
400 500V &C or !000V &C
500 500V &C or !000V &C
"00 500V &C or !000V &C
900 500V &C or !000V &C
;00 500V &C or !000V &C
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4900 !000V &C or 500V &C
4;00 !000V &C or 500V &C
4
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ame of :quipment adwa
Rated Voltage of :quipment 440
Recommended Megger 500V &C or !000
*nsulation Class
Reference Temperature 8C/ 40
+ae Tem$eraure (,C)
!6+an6!0 ! 4 1.15
!6Fe'6!0 4 5" -.-
!6Mar6!0 5 ! 55 2.8-
!6)pr6!0 ! 0 .5
!6May6!0 ! .5*
6May6!0 4 ! 4 .//6May6!0 4 .//
56+un6!! 4 4 1.15
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!6+an6!0 .-1
Jinesh.!a
Measure IR Value(M0) (for 1
Miniue)
Measure IR Value(M0) (for 1 Miniue)
Tem$eraureCorrecion acor
!3RITI36 I6+7 Value measuremen
Class A Class B Class C Class F
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Volt
V &C
Insulaion Coniion !
2.00 9uesionable .00 !6+an6!0
2.00 9uesionable .00 !6Fe'6!0
5.00 7:cellen 5.00 !6Mar6!0
3.00 3; .00 !6)pr6!0
2.00 9uesionable .00 !6May6!0
4.00 3; 4.00 6May6!01. !oor !.00 6May6!0
.*5 !oor 0.95 56+un6!!
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0.00
0.00
0.00
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0.00
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./* !oor 0."9 !6+an6!0
mar '''.elecricalnoes.'or$ress.com
!olari
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1 - J a n - 1 0
on Index Value
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!00 !00V &C or 50V &C
00 !00V &C or 50V &C
00 !00V &C or 50V &C
400 500V &C or !000V &C
500 500V &C or !000V &C"00 500V &C or !000V &C
900 500V &C or !000V &C
;00 500V &C or !000V &C
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+irecion=I +ae
! !6+an6!0 !
5
4 !0
5 !5
" 5
9 50
+irecion=2 +ae
! !
5
4 !0
5 !5
" 5
9 50
+irecion=- +ae
! !
5
4 !0
5 !5
" 5
9 50
+irecion=4 +ae
! !
5
4 !0
5 !5
" 5
9 50
+irecion=5 +ae
! !
5
7lecroe>$acin (>)(Meer)
Meer Rain in3hms
7arh Resisivi&3hm=Meer
7lecroe
>$acin (>)(Meer)
Meer Rain in3hms
7arh Resisivi&3hm?Meer
7lecroe>$acin (>)
(Meer)
Meer Rain in
3hms
7arh Resisivi&
3hm?Meer
7lecroe>$acin (>)
(Meer)
Meer Rain in3hms
7arh Resisivi&3hm?Meer
7lecroe>$acin (>)
(Meer)
Meer Rain in3hms
7arh Resisivi&3hm?Meer
7arh Resisivi& Value Measuremen
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4 !0
5 !5
" 5
9 50
+irecion=/ +ae
! !
5
4 !0
5 !5
" 5
9 50
7lecroe>$acin (>)
(Meer)
Meer Rain in3hms
7arh Resisivi&3hm?Meer
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7arh
1!
Remar@s
C!
Remar@s
#
ocaion of 7ar
&ir
Remar@s
&irection= 4 &ire
&ir
Remar@s
7arh
:
Remar@s
Jinesh.!armar" '''.elecricalnoes.
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95
Remar@s
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Feet 95 Feet
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