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 & Characteristics | Test Description | Test Method | Specification | Typical Values |
| Appearance | A 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):1977 | 0.89 | 0.83 | |
| Kinematic Viscosity @ 270C,cSt(Max) | IS:1448(P:25):1976 | 27 | 16 | |
| Interfacial tension @ 270C,N/m (Min) | IS:6104:1971 | 0.04 | 0.046 | |
| Flash Point, 0C(PMCC)Min | IS:1448(P:21):1970 | 140 | 160 | |
| 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):1967 | 0.03 Nil | Nil Nil | |
| Corrosive Sulphur | As per IS:335,Annex B | Non-Corrosive | Non-Corrosive | |
| Electric Strength(Breakdown Voltage) a)New Unfiltered oil,kV (Min) b)After Filteration,kV (Min) | IS :6792:1972 | 30 60 | 50 70 | |
| Di electric Dissipation factor (tan ) @900C | IS 6262:1971 | 0.002 | 0.00030 | |
| Specific resistance (Resistivity) a)At 900C , ohm-cm (Min) b)At 270C,Ohm-cm (Min) | IS 6103:1971 | 35 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 Inhibitor | IS 13631:1992 | Not Present | Not Present | |
| Water content , ppm (Max) | IS 13567: 1992 | 50 | 25 | |
| SK Value | As per IS:335 Annex D | Under consideration | — |
