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Transformer Oil

ELECTROL® type – II transformer Oil

ELECTROL® type – II transformer Oil

Description:

ELECTROL® type – II transformer oil is severely refined hydrocracked / hydrotreated virgin, uninhibited mineral insulating oil with highest degree of purity and stability. ELECTROL® type – II is manufactured from judiciously selected blend of latest technology feed stocks.

Characteristics:

ELECTROL® type – II offer several advantageous characteristics
• DBDS free
• PCB free
• Metal passivator & deactivator free
• Product is rigorously analysed and passes the corrosion test as per DIN 51353 & IS 16310 methods
• In accordance with IS 335 -2018, all additives are declared

APPLICATIONS

ELECTROL® type – II is highly suitable for all grades of

  • Power transformers & Distribution transformers
  • Circuit Breakers & Rectifiers
  • Oil filled switches & Switchgears
  • X-ray equipment

Technical Specifications

Typical Properties & CharacteristicsTest DescriptionTest MethodSpecificationTypical Values
AppearanceA representative sample of the oil shall be
examined in a 100mm thick layer 270C
Transparent clear colourless,odourless liquid
free from suspended impurities
Transparent clear colourless,odourless liquid
free from suspended impurities
Density @ 29.50C (Max)IS 1448(P:16):19770.890.83
Kinematic Viscosity @ 270C,cSt(Max)IS:1448(P:25):19762716
Interfacial tension @ 270C,N/m (Min)IS:6104:19710.040.046
Flash Point, 0C(PMCC)MinIS:1448(P:21):1970140160
Pour Point, 0C (Max)IS:1448(P:10):1970-6-27
Neutralisation value
a)Total Acidity,mgKOH/g(max)
ii)In Organic Acidity,mgKOH/g(Max)
IS:1448(P:2):19670.03
Nil
Nil Nil
Corrosive SulphurAs per IS:335,Annex BNon-CorrosiveNon-Corrosive
Electric Strength(Breakdown Voltage) a)New Unfiltered oil,kV (Min)
b)After Filteration,kV (Min)
IS :6792:197230
60
50
70
Di electric Dissipation factor (tan ) @900CIS 6262:19710.0020.00030
Specific resistance (Resistivity) a)At 900C , ohm-cm (Min)
b)At 270C,Ohm-cm (Min)
IS 6103:197135 x 10 12
1500 x 10 12
250 x 10 12
3000 x 10 12
Oxidation Stability a)Neutralisation value after Oxidation,mgKOH/g (Max)
b)Total sludge after oxidation, % by weight (Max)
As Per IS:335
Annex C
0.4
0.1
0.034
Nil
Ageing Characteristics after accelerated ageing (open Beaker method with copper catalyst)
a)Specific resistance (Resistivity) 1)At 900C,ohm cm (Min)
ii)At 270C, ohm-cm (Min)
b)Dielectric Dissipation factor (tan ) @900C c)Total Acidity , mg KOH/g (Max)
d)Total Sludge,% by weight ( Max)
IS 12177:1987
Method A IS:6103:1971
IS: 6262:1971 IS1448(P:2):1967
Annex A of IS:12177
0.2 x 10 12
2.5 x 10 12
0.20
0.05
0.05
2 x 10 12
50 x 10 12
0.0072
Nil Nil
Presence of Oxidation InhibitorIS 13631:1992Not PresentNot Present
Water content , ppm (Max)IS 13567: 19925025
SK ValueAs per IS:335
Annex D
Under consideration