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We are authorised dealers of Apar Industries from 2005-06 onwards. We keep ample stock and material is supplied along with Test Certificate from the manufacturer. In case of technical assistance, Apar, is more than willing to help.

APAR are pioneers in the field of manufacture of high performance Transformer Oils in India (environment friendly, higher oxidation stability, lower gassing tendency, ultra low levels of sulphur.

APAR is the world's fourth largest manufacturer and the largest manufacturer of Transformer Oils in India with approximately 50 % market share . Apar is the dominant supplier in power transformer sector (132 kV to 800 k V - AC & HVDC). They supply to OEMs, Utilities and Power Transmission & Distribution Companies.

POWEROIL TRANSFORMER OIL - UNINHIBITED (IS:335:1993)

No. Characteristics Test Mefliod 15:335:1993 (Min) 15:335:1993 (Max)
1. Appearance A representative sample of the oilshallbe examined in a 100 mm lhicklayer at 27°C The Oil shall be clear and transparent and free from suspended matter or sediments
2. Density at 29.5°C. glcm3 IS:1448 (P-16)-1977 - 0.89
3. Kinematic Viscosity, cSt. at 27°C IS:1448 (P-25)-1976 - 27
4. Interfacial Tension, N/M at 27°C IS:6104-1971 0.04 -
5. FlashPoint, Penslry-Marten (closed), °C IS::1448 (P-21) - 1970 140 -
6. Pour point, °C IS::1448 (P-10) - 1970 - -6
7. Neutralization Value
a.Total Acidity. mg.KOH/gm
b.Inorganic acidity/alkali		 IS::1448 (P-2) - 1967 - -
8. Corrosive Sulphur Copper Strip. 1!Hrs. @ 140°C ANNEX-B Non-Corrosive Non-Corrosive
9. Electric Strength (Breakdown Voltage), KV(rms)
a. New unfiltered oil
b. After filteration 		IS-6792-1972
 
  
30
60		 -
10. Dielectric dissipation factor (tanDelta) @ 90°C IS-6262-1972 - 0.002
11. Specific resistance (resistivity), ohm-cm
a. At 90°C
b. At 27°C		 IS-6103-1971

 35 X 1012
1500 X 1012		 -
12. Oxidation Stability(164Hrs @ 100°C)
a. Neutralization Value, mgK0H/gm
b. Total Sludge. Wt%		 ANNEX-C

 -
0.40

0.10
13. Accelerated ageing test (openbeaker method withcopper catalyst) 96Hrs @ 115°C
a. Specific resistance Gesistivity). ohm-cm @ 27°C
b. Specific resistance Gesistivity). ohm-cm @ 90°C
c. Dielectric dissipation factor (tan delta) @ 90°C
d. Total acidity, mg.KOH/gm
e. Total sludge value		 IS:12177-1987
METHOD A
IS:6103-1971
IS:6103-1971
IS:6262-1971
IS:1448 (P-2) - 1967
ANNEX A of 12177		  
 
2.5 X 1012
0.2 X 1012
-
-
-		 -
-
-
-
0.20
0.05
0.05
14. Presence ofoxidation inhibitor IS:13631-1992 The oil shall not contain antioxidant additives The oil shall not contain antioxidant additives
15. Water content, ppm IS:13567-1992 - 50

POWEROIL TO 20

POWEROIL TO 20 is an Uninhibited Transformer Oil meeting IEC 296 Class I : 1982 Standard Specification.

No. Characteristics Unit Test Mefliod 15:335:1993 (Min) 15:335:1993 (Max)
1. Appearance - Representative sample of the oil shall be examined in transmitted light under a thickness of 10 cm at ambient temperature Clear free from sediment and suspended matter
2. Density at 20° C Kg / dm 3 ISO 3675 - 0.895
3. Kinematic Viscosity at 40° C
at 20° C
at -15° C		 Mm 2 / sec


 ISO 3104 - 16.5
4. Flash Point, PMCC ° C ISO 2719 140 -
5. Pour Point ° C ISO 3016 - - 30
6. Inter Facial Tension at 25° C N / m ISO 6275 0.04 -
7. Neutralization Value mg KOH/ gm 7.7 of IEC 296 - 0.03
8. Water Content , Bulk / Drum ppm IEC 733 - 30 / 40
9. Breakdown Voltage
As Delivered / After Treatment		  
kV		 IEC 156
  
30 / 50		 -
-
10. Dielectric Dissipation Factor (Tan δ )at 90° C & 40 to 60 Hz - IEC 247 - 0.005
11. Corrosive Sulphur Copper Strip, 140° C, 19 Hrs - ISO 5662 Non Corrosive
12. Anti Oxidant Additives % IEC 666 Not Detectable
13. Oxidation Stability at 100° C, 164 Hrs
Neutralization Value
Sludge		  
mg KOH /gm
%		 IEC 74

 - -

0.4
0.1

POWEROIL TO 10

POWEROIL TO 10 is an Uninhibited Transformer Oil meeting IEC 296 Class II : 1982 Standard Specification. It also meets the ASTM D 1275 B Test requirement for Corrosive Sulphur.

No. Characteristics Unit Test Mefliod 15:335:1993 (Min) 15:335:1993 (Max)
1. Appearance - Representative sample of the oil shall be examined in transmitted light under a thickness of 10 cm at ambient temperature Clear free from sediment and suspended matter
2. Density at 20° C Kg / dm 3 ISO 3675 - 0.895
3. Kinematic Viscosity at 40° C
at 20° C
at -30° C		 Mm 2 / sec

 ISO 3104 -
11
25
18
4. Flash Point, PMCC ° C ISO 2719 130 -
5. Pour Point ° C ISO 3016 - - 45
6. Inter Facial Tension at 25° C N / m ISO 6275 0.04 -
7. Neutralization Value mg KOH/ gm 7.7 of IEC 296 - 0.03
8. Water Content , Bulk / Drum ppm IEC 733 - 30 / 40
9. Breakdown Voltage
As Delivered / After Treatment		  
kV		 IEC 156
  
30 / 50		 -
-
10. Dielectric Dissipation Factor (Tan δ )at 90° C & 40 to 60 Hz - IEC 247 - 0.005
11. Corrosive Sulphur
Copper Strip, 140° C, 19 Hrs
Copper Strip, 150° C, 48 Hrs		 -
ISO 5662
ASTM D 1275 B
Non Corrosive
Non Corrosive
12. Anti Oxidant Additives % IEC 666 Not Detectable
13. Oxidation Stability at 100° C, 164 Hrs
Neutralization Value
Sludge		  
mg KOH /gm
%		 IEC 74

 - -

0.4
0.1

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