Transformer oil

Outline of product :
For this product the II A technical conditions specified in IE 296-82The Mineral Insulating Oil Used in Transformer and Oil Switchshall be applicable.
This product, prepared from the 2-stage high-pressure hydrofined white oil, is characterized This lproduct, prepared from the 2-stage high-pressure hydrolfined operation,its quality is up to by its high breaking down voltage, low setting pont and steady operation,its quality is up to or even superior to the state standarde and is widely used in various transpormers to ensure therir normal operation.
It is suitable for transformers up to(including)330kV and electrical devices of similar requirements.
This product is divided into 3 grades on the basis of low-temperature performance:10,25 and 45.

Designation	Index			Way of test
Graded	10	25	45
Appearance	Clear, free of suspended matter or mechanical impurities			Visual inspection
Density(20)kg/cm3,                                          Max	895			GB/T 1884 GB/T 1885
Kinematic viscosity , mm2/s 40                                                                     Max -10                                                                   Max -30                                                                   Max	13 - -	13 200 -	11 - 1800	GB/T 265
Pour point,                                                       Max	-7	-22	Reported	GB/T 3535
Setpoint ,                                                          Max	-		-45	GB/T 510
Flash Point(closed) ,                                        Min	140		135	GB/T 261
Acid value , mgKOH/g                                          Max	0.03			GB/T 264
Corrosive sulfur	Non-corrosive			SH/T 0304
Oxidation stability Acid value after oxidation , mgKOH/g                   Max Precipitation after oxidation , %                           Max	0.2 0.05			SH/T 0206
Water soluble acid of alkali	None			GB/T 259
Breakdown voltage(2.5mmgap,at delivery) , kv     Min	35			GB/T 507
Dielectric loss factor(90)                                    Max	0.005			GB/T 5654
Surface tension , mN/m                                         Min	40		38	GB/T 6541
Moisture , mg/kg	Reported			SH/T 0207

Note :
1 . Mark,package,transportation and storage
The mark, package,transportation and delivery shall be in accoradnce with SH0164.
2 . Sampling
Two liters of sample shall be taken in accordance with GB/T4756 for inspection and as reserved sample.

Manufacturer : Hangzhou Refinery China Petrochemical Corporation
Address : 48 Pinglian road, Kangqiao, Gongshu, Hangzhou, Zhejiang, China   
Postal code : 310015
Telephone : + 86 - 571 - 88043685 , 88041011 ( Institute )
Fax : + 86 - 571 - 88043685 
Email : yjs@hzlyc.com