the transformer oil and state characteristcs

the transformer oil and state  characteristcs

characteristcs : limit

sludge value ( max ) : 0.10%

acidity after oxidation ( max ) : 0.40 mg KOH/g

flash point (closed) ( min ) : 140 °C

viscosity at -50c ( max )  : 800 CST

viscosity at -200c ( max ) : 40 CST

Pour Point (Max.) : -6 °C

electric strength ( breakdown ) ( min )

oil delivered in bulk : 30 kv

oil received in graet britain in drums : 27 kv

oil shipped overseas in drums : no set limit

acidity ( neutralization value ) ( max ) : 0.03 mg KOH/g

corrosive sulphur shallbno scorrosive water content ( max )

oil delivered in bulk : 35 kv

oil received in great britain in drums : 50 kv

oil shipped overseas in drums : no set limit

density at 200c ( max ) : 0.895 g/crm³

loss tangent at 900c  ( max ) :  0.005

resistivity  : no set limit